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strict\";\n\nimport * as THREE from \"three\";\nimport { OrbitControls } from \"three/examples/jsm/controls/OrbitControls\";\n\nimport GUI from 'lil-gui';\nimport Stats from 'stats.js';\n\nimport Garden from '../Garden';\n\nclass App {\n\n    // Three.js\n    scene: THREE.Scene;\n    camera: THREE.Camera;\n    renderer: THREE.WebGLRenderer;\n    clock = new THREE.Clock(true);\n    controls: OrbitControls;\n\n    stats = new Stats();\n\n    garden: Garden;\n\n    constructor() {\n\n        document.addEventListener(\"click\", (event) => {\n            event.preventDefault();\n            let x = (event.clientX / window.innerWidth) * 2 - 1;\n            let y = - (event.clientY / window.innerHeight) * 2 + 1;\n\n            this.garden.click({ x, y }, this.camera);\n        });\n\n        // Stats\n        this.stats.showPanel(0);\n        document.body.appendChild(this.stats.dom);\n\n        // Gui\n        const gui = new GUI();\n        const guiObject = {\n            progress: 1,\n            ar: () => {\n                window.open('/ar/index.html');\n            },\n            report: () => {\n                console.log(this.renderer.info.render);\n            },\n            generate: () => {\n                this.garden.generate();\n            },\n            capture: async () => {\n                let canvas = this.renderer.domElement;\n\n                // Prepare canvas\n                this.renderer.setClearColor(0x000000, 0);\n                this.resize(4096, 4096);\n                await new Promise(r => setTimeout(r, 10));\n\n                // Capture image.\n                let imageUrl = canvas.toDataURL();\n                console.log(imageUrl);\n\n                // Fake click.\n                const anchor = document.createElement('a');\n                anchor.download = 'image.png';\n                anchor.href = imageUrl;\n                anchor.click();\n                anchor.remove();\n\n                // Restore canvas.\n                this.renderer.setClearColor(0x000000, 1);\n                this.resize(window.innerWidth, window.innerHeight);\n            }\n        };\n\n        gui.add(guiObject, 'progress', 0, 1).onChange(value => {\n            this.garden.progress(value);\n        });\n\n        gui.add(guiObject, 'ar');\n        gui.add(guiObject, 'report');\n        gui.add(guiObject, 'generate');\n        gui.add(guiObject, 'capture');\n\n        // Three setup.\n\n        this.scene = new THREE.Scene();\n\n        // Perspective camera.\n        this.camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);\n\n        // Orthographic camera.\n        // let width = window.innerWidth;\n        // let height = window.innerHeight;\n        // this.camera = new THREE.OrthographicCamera(width / - 2, width / 2, height / 2, height / - 2, .001, 10000);\n        // this.camera.scale.set(.025, .025, .025);\n\n        this.renderer = new THREE.WebGLRenderer({\n            \"antialias\": true,\n            \"alpha\": true,\n            \"preserveDrawingBuffer\": true\n        });\n        this.renderer.setClearColor(0x000000, 1);\n\n\n        this.renderer.setPixelRatio(window.devicePixelRatio);\n        this.renderer.setSize(window.innerWidth, window.innerHeight);\n        document.body.appendChild(this.renderer.domElement);\n\n        // this.camera.position.set(0, 96, 0); // Capture B\n        // this.camera.position.set(0, 72, 0); // Capture A\n\n        // this.controls.target.set(0, 0, 0);\n        //this.camera.position.z = 12;\n\n        // this.camera.position.set(0, 14, 0);// Bloom\n\n        // this.camera.position.set(0, 0, 5);// Dome\n        this.camera.position.set(0, 0, 2);// Circle\n\n        // this.camera.position.set(0, 0, 2);// Bloom\n\n        // Controls\n        this.controls = new OrbitControls(this.camera, this.renderer.domElement);\n        // this.controls.target.set(0, 0, 0);\n        this.controls.target.set(0, 0, 0);\n        this.controls.update();\n\n        // Garden.\n        this.garden = new Garden();\n        this.scene.add(this.garden);\n\n        // let circleView = new Garden.Views.GeometryView(\n        //     {\n        //         modelUrl: new URL(\"../assets/models/Circle.obj\", import.meta.url).toString(),\n        //         maxBloomRadius: .20,\n        //         minBloomRadius: .08,\n        //         minSurfaceOffset: .04,\n        //         maxSurfaceOffset: .18,\n        //         textureScale: 8\n        //     }\n        // );\n        // this.garden.add(circleView);\n        // this.garden.views.push(circleView);\n\n        {\n            let domeView = new Garden.Views.GeometryView(\n                {\n                    modelUrl: new URL(\"../assets/models/DomeFacade.obj\", import.meta.url).toString(),\n                    maxBloomRadius: .28,\n                    minBloomRadius: .08,\n                    minSurfaceOffset: .04,\n                    maxSurfaceOffset: .18,\n                    textureScale: 12\n                }\n            );\n            this.garden.add(domeView);\n            this.garden.views.push(domeView);\n        }\n\n        // let bloomView = new Garden.Views.BloomView();\n        // this.garden.add(bloomView);\n        // this.garden.views.push(bloomView);\n        // this.camera.position.set(0, 14, 0);\n        // this.controls.target.set(0, 0, 0);\n\n        // Click off animation.\n        this.animate();\n\n        window.addEventListener('resize', () => {\n            this.resize(window.innerWidth, window.innerHeight);\n        });\n    }\n\n    resize(width, height) {\n        this.camera.aspect = width / height;\n        this.camera.updateProjectionMatrix();\n        this.renderer.setSize(width, height);\n    }\n\n    animate() {\n\n        this.stats.begin();\n\n        this.controls.update();\n\n        this.garden.update();\n\n        this.renderer.render(this.scene, this.camera);\n\n        this.stats.end();\n\n        requestAnimationFrame(this.animate.bind(this));\n    };\n}\n\nexport default new App();","import {\n\tEventDispatcher,\n\tMOUSE,\n\tQuaternion,\n\tSpherical,\n\tTOUCH,\n\tVector2,\n\tVector3\n} from 'three';\n\n// This set of controls performs orbiting, dollying (zooming), and panning.\n// Unlike TrackballControls, it maintains the \"up\" direction object.up (+Y by default).\n//\n//    Orbit - left mouse / touch: one-finger move\n//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish\n//    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move\n\nconst _changeEvent = { type: 'change' };\nconst _startEvent = { type: 'start' };\nconst _endEvent = { type: 'end' };\n\nclass OrbitControls extends EventDispatcher {\n\n\tconstructor( object, domElement ) {\n\n\t\tsuper();\n\n\t\tif ( domElement === undefined ) console.warn( 'THREE.OrbitControls: The second parameter \"domElement\" is now mandatory.' );\n\t\tif ( domElement === document ) console.error( 'THREE.OrbitControls: \"document\" should not be used as the target \"domElement\". Please use \"renderer.domElement\" instead.' );\n\n\t\tthis.object = object;\n\t\tthis.domElement = domElement;\n\t\tthis.domElement.style.touchAction = 'none'; // disable touch scroll\n\n\t\t// Set to false to disable this control\n\t\tthis.enabled = true;\n\n\t\t// \"target\" sets the location of focus, where the object orbits around\n\t\tthis.target = new Vector3();\n\n\t\t// How far you can dolly in and out ( PerspectiveCamera only )\n\t\tthis.minDistance = 0;\n\t\tthis.maxDistance = Infinity;\n\n\t\t// How far you can zoom in and out ( OrthographicCamera only )\n\t\tthis.minZoom = 0;\n\t\tthis.maxZoom = Infinity;\n\n\t\t// How far you can orbit vertically, upper and lower limits.\n\t\t// Range is 0 to Math.PI radians.\n\t\tthis.minPolarAngle = 0; // radians\n\t\tthis.maxPolarAngle = Math.PI; // radians\n\n\t\t// How far you can orbit horizontally, upper and lower limits.\n\t\t// If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI )\n\t\tthis.minAzimuthAngle = - Infinity; // radians\n\t\tthis.maxAzimuthAngle = Infinity; // radians\n\n\t\t// Set to true to enable damping (inertia)\n\t\t// If damping is enabled, you must call controls.update() in your animation loop\n\t\tthis.enableDamping = false;\n\t\tthis.dampingFactor = 0.05;\n\n\t\t// This option actually enables dollying in and out; left as \"zoom\" for backwards compatibility.\n\t\t// Set to false to disable zooming\n\t\tthis.enableZoom = true;\n\t\tthis.zoomSpeed = 1.0;\n\n\t\t// Set to false to disable rotating\n\t\tthis.enableRotate = true;\n\t\tthis.rotateSpeed = 1.0;\n\n\t\t// Set to false to disable panning\n\t\tthis.enablePan = true;\n\t\tthis.panSpeed = 1.0;\n\t\tthis.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up\n\t\tthis.keyPanSpeed = 7.0;\t// pixels moved per arrow key push\n\n\t\t// Set to true to automatically rotate around the target\n\t\t// If auto-rotate is enabled, you must call controls.update() in your animation loop\n\t\tthis.autoRotate = false;\n\t\tthis.autoRotateSpeed = 2.0; // 30 seconds per orbit when fps is 60\n\n\t\t// The four arrow keys\n\t\tthis.keys = { LEFT: 'ArrowLeft', UP: 'ArrowUp', RIGHT: 'ArrowRight', BOTTOM: 'ArrowDown' };\n\n\t\t// Mouse buttons\n\t\tthis.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN };\n\n\t\t// Touch fingers\n\t\tthis.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN };\n\n\t\t// for reset\n\t\tthis.target0 = this.target.clone();\n\t\tthis.position0 = this.object.position.clone();\n\t\tthis.zoom0 = this.object.zoom;\n\n\t\t// the target DOM element for key events\n\t\tthis._domElementKeyEvents = null;\n\n\t\t//\n\t\t// public methods\n\t\t//\n\n\t\tthis.getPolarAngle = function () {\n\n\t\t\treturn spherical.phi;\n\n\t\t};\n\n\t\tthis.getAzimuthalAngle = function () {\n\n\t\t\treturn spherical.theta;\n\n\t\t};\n\n\t\tthis.getDistance = function () {\n\n\t\t\treturn this.object.position.distanceTo( this.target );\n\n\t\t};\n\n\t\tthis.listenToKeyEvents = function ( domElement ) {\n\n\t\t\tdomElement.addEventListener( 'keydown', onKeyDown );\n\t\t\tthis._domElementKeyEvents = domElement;\n\n\t\t};\n\n\t\tthis.saveState = function () {\n\n\t\t\tscope.target0.copy( scope.target );\n\t\t\tscope.position0.copy( scope.object.position );\n\t\t\tscope.zoom0 = scope.object.zoom;\n\n\t\t};\n\n\t\tthis.reset = function () {\n\n\t\t\tscope.target.copy( scope.target0 );\n\t\t\tscope.object.position.copy( scope.position0 );\n\t\t\tscope.object.zoom = scope.zoom0;\n\n\t\t\tscope.object.updateProjectionMatrix();\n\t\t\tscope.dispatchEvent( _changeEvent );\n\n\t\t\tscope.update();\n\n\t\t\tstate = STATE.NONE;\n\n\t\t};\n\n\t\t// this method is exposed, but perhaps it would be better if we can make it private...\n\t\tthis.update = function () {\n\n\t\t\tconst offset = new Vector3();\n\n\t\t\t// so camera.up is the orbit axis\n\t\t\tconst quat = new Quaternion().setFromUnitVectors( object.up, new Vector3( 0, 1, 0 ) );\n\t\t\tconst quatInverse = quat.clone().invert();\n\n\t\t\tconst lastPosition = new Vector3();\n\t\t\tconst lastQuaternion = new Quaternion();\n\n\t\t\tconst twoPI = 2 * Math.PI;\n\n\t\t\treturn function update() {\n\n\t\t\t\tconst position = scope.object.position;\n\n\t\t\t\toffset.copy( position ).sub( scope.target );\n\n\t\t\t\t// rotate offset to \"y-axis-is-up\" space\n\t\t\t\toffset.applyQuaternion( quat );\n\n\t\t\t\t// angle from z-axis around y-axis\n\t\t\t\tspherical.setFromVector3( offset );\n\n\t\t\t\tif ( scope.autoRotate && state === STATE.NONE ) {\n\n\t\t\t\t\trotateLeft( getAutoRotationAngle() );\n\n\t\t\t\t}\n\n\t\t\t\tif ( scope.enableDamping ) {\n\n\t\t\t\t\tspherical.theta += sphericalDelta.theta * scope.dampingFactor;\n\t\t\t\t\tspherical.phi += sphericalDelta.phi * scope.dampingFactor;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tspherical.theta += sphericalDelta.theta;\n\t\t\t\t\tspherical.phi += sphericalDelta.phi;\n\n\t\t\t\t}\n\n\t\t\t\t// restrict theta to be between desired limits\n\n\t\t\t\tlet min = scope.minAzimuthAngle;\n\t\t\t\tlet max = scope.maxAzimuthAngle;\n\n\t\t\t\tif ( isFinite( min ) && isFinite( max ) ) {\n\n\t\t\t\t\tif ( min < - Math.PI ) min += twoPI; else if ( min > Math.PI ) min -= twoPI;\n\n\t\t\t\t\tif ( max < - Math.PI ) max += twoPI; else if ( max > Math.PI ) max -= twoPI;\n\n\t\t\t\t\tif ( min <= max ) {\n\n\t\t\t\t\t\tspherical.theta = Math.max( min, Math.min( max, spherical.theta ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tspherical.theta = ( spherical.theta > ( min + max ) / 2 ) ?\n\t\t\t\t\t\t\tMath.max( min, spherical.theta ) :\n\t\t\t\t\t\t\tMath.min( max, spherical.theta );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// restrict phi to be between desired limits\n\t\t\t\tspherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) );\n\n\t\t\t\tspherical.makeSafe();\n\n\n\t\t\t\tspherical.radius *= scale;\n\n\t\t\t\t// restrict radius to be between desired limits\n\t\t\t\tspherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) );\n\n\t\t\t\t// move target to panned location\n\n\t\t\t\tif ( scope.enableDamping === true ) {\n\n\t\t\t\t\tscope.target.addScaledVector( panOffset, scope.dampingFactor );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tscope.target.add( panOffset );\n\n\t\t\t\t}\n\n\t\t\t\toffset.setFromSpherical( spherical );\n\n\t\t\t\t// rotate offset back to \"camera-up-vector-is-up\" space\n\t\t\t\toffset.applyQuaternion( quatInverse );\n\n\t\t\t\tposition.copy( scope.target ).add( offset );\n\n\t\t\t\tscope.object.lookAt( scope.target );\n\n\t\t\t\tif ( scope.enableDamping === true ) {\n\n\t\t\t\t\tsphericalDelta.theta *= ( 1 - scope.dampingFactor );\n\t\t\t\t\tsphericalDelta.phi *= ( 1 - scope.dampingFactor );\n\n\t\t\t\t\tpanOffset.multiplyScalar( 1 - scope.dampingFactor );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsphericalDelta.set( 0, 0, 0 );\n\n\t\t\t\t\tpanOffset.set( 0, 0, 0 );\n\n\t\t\t\t}\n\n\t\t\t\tscale = 1;\n\n\t\t\t\t// update condition is:\n\t\t\t\t// min(camera displacement, camera rotation in radians)^2 > EPS\n\t\t\t\t// using small-angle approximation cos(x/2) = 1 - x^2 / 8\n\n\t\t\t\tif ( zoomChanged ||\n\t\t\t\t\tlastPosition.distanceToSquared( scope.object.position ) > EPS ||\n\t\t\t\t\t8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {\n\n\t\t\t\t\tscope.dispatchEvent( _changeEvent );\n\n\t\t\t\t\tlastPosition.copy( scope.object.position );\n\t\t\t\t\tlastQuaternion.copy( scope.object.quaternion );\n\t\t\t\t\tzoomChanged = false;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\n\t\t\t};\n\n\t\t}();\n\n\t\tthis.dispose = function () {\n\n\t\t\tscope.domElement.removeEventListener( 'contextmenu', onContextMenu );\n\n\t\t\tscope.domElement.removeEventListener( 'pointerdown', onPointerDown );\n\t\t\tscope.domElement.removeEventListener( 'pointercancel', onPointerCancel );\n\t\t\tscope.domElement.removeEventListener( 'wheel', onMouseWheel );\n\n\t\t\tscope.domElement.removeEventListener( 'pointermove', onPointerMove );\n\t\t\tscope.domElement.removeEventListener( 'pointerup', onPointerUp );\n\n\n\t\t\tif ( scope._domElementKeyEvents !== null ) {\n\n\t\t\t\tscope._domElementKeyEvents.removeEventListener( 'keydown', onKeyDown );\n\n\t\t\t}\n\n\t\t\t//scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?\n\n\t\t};\n\n\t\t//\n\t\t// internals\n\t\t//\n\n\t\tconst scope = this;\n\n\t\tconst STATE = {\n\t\t\tNONE: - 1,\n\t\t\tROTATE: 0,\n\t\t\tDOLLY: 1,\n\t\t\tPAN: 2,\n\t\t\tTOUCH_ROTATE: 3,\n\t\t\tTOUCH_PAN: 4,\n\t\t\tTOUCH_DOLLY_PAN: 5,\n\t\t\tTOUCH_DOLLY_ROTATE: 6\n\t\t};\n\n\t\tlet state = STATE.NONE;\n\n\t\tconst EPS = 0.000001;\n\n\t\t// current position in spherical coordinates\n\t\tconst spherical = new Spherical();\n\t\tconst sphericalDelta = new Spherical();\n\n\t\tlet scale = 1;\n\t\tconst panOffset = new Vector3();\n\t\tlet zoomChanged = false;\n\n\t\tconst rotateStart = new Vector2();\n\t\tconst rotateEnd = new Vector2();\n\t\tconst rotateDelta = new Vector2();\n\n\t\tconst panStart = new Vector2();\n\t\tconst panEnd = new Vector2();\n\t\tconst panDelta = new Vector2();\n\n\t\tconst dollyStart = new Vector2();\n\t\tconst dollyEnd = new Vector2();\n\t\tconst dollyDelta = new Vector2();\n\n\t\tconst pointers = [];\n\t\tconst pointerPositions = {};\n\n\t\tfunction getAutoRotationAngle() {\n\n\t\t\treturn 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;\n\n\t\t}\n\n\t\tfunction getZoomScale() {\n\n\t\t\treturn Math.pow( 0.95, scope.zoomSpeed );\n\n\t\t}\n\n\t\tfunction rotateLeft( angle ) {\n\n\t\t\tsphericalDelta.theta -= angle;\n\n\t\t}\n\n\t\tfunction rotateUp( angle ) {\n\n\t\t\tsphericalDelta.phi -= angle;\n\n\t\t}\n\n\t\tconst panLeft = function () {\n\n\t\t\tconst v = new Vector3();\n\n\t\t\treturn function panLeft( distance, objectMatrix ) {\n\n\t\t\t\tv.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix\n\t\t\t\tv.multiplyScalar( - distance );\n\n\t\t\t\tpanOffset.add( v );\n\n\t\t\t};\n\n\t\t}();\n\n\t\tconst panUp = function () {\n\n\t\t\tconst v = new Vector3();\n\n\t\t\treturn function panUp( distance, objectMatrix ) {\n\n\t\t\t\tif ( scope.screenSpacePanning === true ) {\n\n\t\t\t\t\tv.setFromMatrixColumn( objectMatrix, 1 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tv.setFromMatrixColumn( objectMatrix, 0 );\n\t\t\t\t\tv.crossVectors( scope.object.up, v );\n\n\t\t\t\t}\n\n\t\t\t\tv.multiplyScalar( distance );\n\n\t\t\t\tpanOffset.add( v );\n\n\t\t\t};\n\n\t\t}();\n\n\t\t// deltaX and deltaY are in pixels; right and down are positive\n\t\tconst pan = function () {\n\n\t\t\tconst offset = new Vector3();\n\n\t\t\treturn function pan( deltaX, deltaY ) {\n\n\t\t\t\tconst element = scope.domElement;\n\n\t\t\t\tif ( scope.object.isPerspectiveCamera ) {\n\n\t\t\t\t\t// perspective\n\t\t\t\t\tconst position = scope.object.position;\n\t\t\t\t\toffset.copy( position ).sub( scope.target );\n\t\t\t\t\tlet targetDistance = offset.length();\n\n\t\t\t\t\t// half of the fov is center to top of screen\n\t\t\t\t\ttargetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 );\n\n\t\t\t\t\t// we use only clientHeight here so aspect ratio does not distort speed\n\t\t\t\t\tpanLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix );\n\t\t\t\t\tpanUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix );\n\n\t\t\t\t} else if ( scope.object.isOrthographicCamera ) {\n\n\t\t\t\t\t// orthographic\n\t\t\t\t\tpanLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix );\n\t\t\t\t\tpanUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// camera neither orthographic nor perspective\n\t\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' );\n\t\t\t\t\tscope.enablePan = false;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}();\n\n\t\tfunction dollyOut( dollyScale ) {\n\n\t\t\tif ( scope.object.isPerspectiveCamera ) {\n\n\t\t\t\tscale /= dollyScale;\n\n\t\t\t} else if ( scope.object.isOrthographicCamera ) {\n\n\t\t\t\tscope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) );\n\t\t\t\tscope.object.updateProjectionMatrix();\n\t\t\t\tzoomChanged = true;\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );\n\t\t\t\tscope.enableZoom = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction dollyIn( dollyScale ) {\n\n\t\t\tif ( scope.object.isPerspectiveCamera ) {\n\n\t\t\t\tscale *= dollyScale;\n\n\t\t\t} else if ( scope.object.isOrthographicCamera ) {\n\n\t\t\t\tscope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) );\n\t\t\t\tscope.object.updateProjectionMatrix();\n\t\t\t\tzoomChanged = true;\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );\n\t\t\t\tscope.enableZoom = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\t\t// event callbacks - update the object state\n\t\t//\n\n\t\tfunction handleMouseDownRotate( event ) {\n\n\t\t\trotateStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseDownDolly( event ) {\n\n\t\t\tdollyStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseDownPan( event ) {\n\n\t\t\tpanStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseMoveRotate( event ) {\n\n\t\t\trotateEnd.set( event.clientX, event.clientY );\n\n\t\t\trotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed );\n\n\t\t\tconst element = scope.domElement;\n\n\t\t\trotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height\n\n\t\t\trotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight );\n\n\t\t\trotateStart.copy( rotateEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseMoveDolly( event ) {\n\n\t\t\tdollyEnd.set( event.clientX, event.clientY );\n\n\t\t\tdollyDelta.subVectors( dollyEnd, dollyStart );\n\n\t\t\tif ( dollyDelta.y > 0 ) {\n\n\t\t\t\tdollyOut( getZoomScale() );\n\n\t\t\t} else if ( dollyDelta.y < 0 ) {\n\n\t\t\t\tdollyIn( getZoomScale() );\n\n\t\t\t}\n\n\t\t\tdollyStart.copy( dollyEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseMovePan( event ) {\n\n\t\t\tpanEnd.set( event.clientX, event.clientY );\n\n\t\t\tpanDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed );\n\n\t\t\tpan( panDelta.x, panDelta.y );\n\n\t\t\tpanStart.copy( panEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseWheel( event ) {\n\n\t\t\tif ( event.deltaY < 0 ) {\n\n\t\t\t\tdollyIn( getZoomScale() );\n\n\t\t\t} else if ( event.deltaY > 0 ) {\n\n\t\t\t\tdollyOut( getZoomScale() );\n\n\t\t\t}\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleKeyDown( event ) {\n\n\t\t\tlet needsUpdate = false;\n\n\t\t\tswitch ( event.code ) {\n\n\t\t\t\tcase scope.keys.UP:\n\t\t\t\t\tpan( 0, scope.keyPanSpeed );\n\t\t\t\t\tneedsUpdate = true;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.BOTTOM:\n\t\t\t\t\tpan( 0, - scope.keyPanSpeed );\n\t\t\t\t\tneedsUpdate = true;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.LEFT:\n\t\t\t\t\tpan( scope.keyPanSpeed, 0 );\n\t\t\t\t\tneedsUpdate = true;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.RIGHT:\n\t\t\t\t\tpan( - scope.keyPanSpeed, 0 );\n\t\t\t\t\tneedsUpdate = true;\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tif ( needsUpdate ) {\n\n\t\t\t\t// prevent the browser from scrolling on cursor keys\n\t\t\t\tevent.preventDefault();\n\n\t\t\t\tscope.update();\n\n\t\t\t}\n\n\n\t\t}\n\n\t\tfunction handleTouchStartRotate() {\n\n\t\t\tif ( pointers.length === 1 ) {\n\n\t\t\t\trotateStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY );\n\n\t\t\t} else {\n\n\t\t\t\tconst x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX );\n\t\t\t\tconst y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY );\n\n\t\t\t\trotateStart.set( x, y );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction handleTouchStartPan() {\n\n\t\t\tif ( pointers.length === 1 ) {\n\n\t\t\t\tpanStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY );\n\n\t\t\t} else {\n\n\t\t\t\tconst x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX );\n\t\t\t\tconst y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY );\n\n\t\t\t\tpanStart.set( x, y );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction handleTouchStartDolly() {\n\n\t\t\tconst dx = pointers[ 0 ].pageX - pointers[ 1 ].pageX;\n\t\t\tconst dy = pointers[ 0 ].pageY - pointers[ 1 ].pageY;\n\n\t\t\tconst distance = Math.sqrt( dx * dx + dy * dy );\n\n\t\t\tdollyStart.set( 0, distance );\n\n\t\t}\n\n\t\tfunction handleTouchStartDollyPan() {\n\n\t\t\tif ( scope.enableZoom ) handleTouchStartDolly();\n\n\t\t\tif ( scope.enablePan ) handleTouchStartPan();\n\n\t\t}\n\n\t\tfunction handleTouchStartDollyRotate() {\n\n\t\t\tif ( scope.enableZoom ) handleTouchStartDolly();\n\n\t\t\tif ( scope.enableRotate ) handleTouchStartRotate();\n\n\t\t}\n\n\t\tfunction handleTouchMoveRotate( event ) {\n\n\t\t\tif ( pointers.length == 1 ) {\n\n\t\t\t\trotateEnd.set( event.pageX, event.pageY );\n\n\t\t\t} else {\n\n\t\t\t\tconst position = getSecondPointerPosition( event );\n\n\t\t\t\tconst x = 0.5 * ( event.pageX + position.x );\n\t\t\t\tconst y = 0.5 * ( event.pageY + position.y );\n\n\t\t\t\trotateEnd.set( x, y );\n\n\t\t\t}\n\n\t\t\trotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed );\n\n\t\t\tconst element = scope.domElement;\n\n\t\t\trotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height\n\n\t\t\trotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight );\n\n\t\t\trotateStart.copy( rotateEnd );\n\n\t\t}\n\n\t\tfunction handleTouchMovePan( event ) {\n\n\t\t\tif ( pointers.length === 1 ) {\n\n\t\t\t\tpanEnd.set( event.pageX, event.pageY );\n\n\t\t\t} else {\n\n\t\t\t\tconst position = getSecondPointerPosition( event );\n\n\t\t\t\tconst x = 0.5 * ( event.pageX + position.x );\n\t\t\t\tconst y = 0.5 * ( event.pageY + position.y );\n\n\t\t\t\tpanEnd.set( x, y );\n\n\t\t\t}\n\n\t\t\tpanDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed );\n\n\t\t\tpan( panDelta.x, panDelta.y );\n\n\t\t\tpanStart.copy( panEnd );\n\n\t\t}\n\n\t\tfunction handleTouchMoveDolly( event ) {\n\n\t\t\tconst position = getSecondPointerPosition( event );\n\n\t\t\tconst dx = event.pageX - position.x;\n\t\t\tconst dy = event.pageY - position.y;\n\n\t\t\tconst distance = Math.sqrt( dx * dx + dy * dy );\n\n\t\t\tdollyEnd.set( 0, distance );\n\n\t\t\tdollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) );\n\n\t\t\tdollyOut( dollyDelta.y );\n\n\t\t\tdollyStart.copy( dollyEnd );\n\n\t\t}\n\n\t\tfunction handleTouchMoveDollyPan( event ) {\n\n\t\t\tif ( scope.enableZoom ) handleTouchMoveDolly( event );\n\n\t\t\tif ( scope.enablePan ) handleTouchMovePan( event );\n\n\t\t}\n\n\t\tfunction handleTouchMoveDollyRotate( event ) {\n\n\t\t\tif ( scope.enableZoom ) handleTouchMoveDolly( event );\n\n\t\t\tif ( scope.enableRotate ) handleTouchMoveRotate( event );\n\n\t\t}\n\n\t\t//\n\t\t// event handlers - FSM: listen for events and reset state\n\t\t//\n\n\t\tfunction onPointerDown( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tif ( pointers.length === 0 ) {\n\n\t\t\t\tscope.domElement.setPointerCapture( event.pointerId );\n\n\t\t\t\tscope.domElement.addEventListener( 'pointermove', onPointerMove );\n\t\t\t\tscope.domElement.addEventListener( 'pointerup', onPointerUp );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\taddPointer( event );\n\n\t\t\tif ( event.pointerType === 'touch' ) {\n\n\t\t\t\tonTouchStart( event );\n\n\t\t\t} else {\n\n\t\t\t\tonMouseDown( event );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onPointerMove( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tif ( event.pointerType === 'touch' ) {\n\n\t\t\t\tonTouchMove( event );\n\n\t\t\t} else {\n\n\t\t\t\tonMouseMove( event );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onPointerUp( event ) {\n\n\t\t    removePointer( event );\n\n\t\t    if ( pointers.length === 0 ) {\n\n\t\t        scope.domElement.releasePointerCapture( event.pointerId );\n\n\t\t        scope.domElement.removeEventListener( 'pointermove', onPointerMove );\n\t\t        scope.domElement.removeEventListener( 'pointerup', onPointerUp );\n\n\t\t    }\n\n\t\t    scope.dispatchEvent( _endEvent );\n\n\t\t    state = STATE.NONE;\n\n\t\t}\n\n\t\tfunction onPointerCancel( event ) {\n\n\t\t\tremovePointer( event );\n\n\t\t}\n\n\t\tfunction onMouseDown( event ) {\n\n\t\t\tlet mouseAction;\n\n\t\t\tswitch ( event.button ) {\n\n\t\t\t\tcase 0:\n\n\t\t\t\t\tmouseAction = scope.mouseButtons.LEFT;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 1:\n\n\t\t\t\t\tmouseAction = scope.mouseButtons.MIDDLE;\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 2:\n\n\t\t\t\t\tmouseAction = scope.mouseButtons.RIGHT;\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tmouseAction = - 1;\n\n\t\t\t}\n\n\t\t\tswitch ( mouseAction ) {\n\n\t\t\t\tcase MOUSE.DOLLY:\n\n\t\t\t\t\tif ( scope.enableZoom === false ) return;\n\n\t\t\t\t\thandleMouseDownDolly( event );\n\n\t\t\t\t\tstate = STATE.DOLLY;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase MOUSE.ROTATE:\n\n\t\t\t\t\tif ( event.ctrlKey || event.metaKey || event.shiftKey ) {\n\n\t\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\t\thandleMouseDownPan( event );\n\n\t\t\t\t\t\tstate = STATE.PAN;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\t\thandleMouseDownRotate( event );\n\n\t\t\t\t\t\tstate = STATE.ROTATE;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase MOUSE.PAN:\n\n\t\t\t\t\tif ( event.ctrlKey || event.metaKey || event.shiftKey ) {\n\n\t\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\t\thandleMouseDownRotate( event );\n\n\t\t\t\t\t\tstate = STATE.ROTATE;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\t\thandleMouseDownPan( event );\n\n\t\t\t\t\t\tstate = STATE.PAN;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t}\n\n\t\t\tif ( state !== STATE.NONE ) {\n\n\t\t\t\tscope.dispatchEvent( _startEvent );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onMouseMove( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tswitch ( state ) {\n\n\t\t\t\tcase STATE.ROTATE:\n\n\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\thandleMouseMoveRotate( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase STATE.DOLLY:\n\n\t\t\t\t\tif ( scope.enableZoom === false ) return;\n\n\t\t\t\t\thandleMouseMoveDolly( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase STATE.PAN:\n\n\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\thandleMouseMovePan( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onMouseWheel( event ) {\n\n\t\t\tif ( scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE ) return;\n\n\t\t\tevent.preventDefault();\n\n\t\t\tscope.dispatchEvent( _startEvent );\n\n\t\t\thandleMouseWheel( event );\n\n\t\t\tscope.dispatchEvent( _endEvent );\n\n\t\t}\n\n\t\tfunction onKeyDown( event ) {\n\n\t\t\tif ( scope.enabled === false || scope.enablePan === false ) return;\n\n\t\t\thandleKeyDown( event );\n\n\t\t}\n\n\t\tfunction onTouchStart( event ) {\n\n\t\t\ttrackPointer( event );\n\n\t\t\tswitch ( pointers.length ) {\n\n\t\t\t\tcase 1:\n\n\t\t\t\t\tswitch ( scope.touches.ONE ) {\n\n\t\t\t\t\t\tcase TOUCH.ROTATE:\n\n\t\t\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\t\t\thandleTouchStartRotate();\n\n\t\t\t\t\t\t\tstate = STATE.TOUCH_ROTATE;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TOUCH.PAN:\n\n\t\t\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\t\t\thandleTouchStartPan();\n\n\t\t\t\t\t\t\tstate = STATE.TOUCH_PAN;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 2:\n\n\t\t\t\t\tswitch ( scope.touches.TWO ) {\n\n\t\t\t\t\t\tcase TOUCH.DOLLY_PAN:\n\n\t\t\t\t\t\t\tif ( scope.enableZoom === false && scope.enablePan === false ) return;\n\n\t\t\t\t\t\t\thandleTouchStartDollyPan();\n\n\t\t\t\t\t\t\tstate = STATE.TOUCH_DOLLY_PAN;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TOUCH.DOLLY_ROTATE:\n\n\t\t\t\t\t\t\tif ( scope.enableZoom === false && scope.enableRotate === false ) return;\n\n\t\t\t\t\t\t\thandleTouchStartDollyRotate();\n\n\t\t\t\t\t\t\tstate = STATE.TOUCH_DOLLY_ROTATE;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t}\n\n\t\t\tif ( state !== STATE.NONE ) {\n\n\t\t\t\tscope.dispatchEvent( _startEvent );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onTouchMove( event ) {\n\n\t\t\ttrackPointer( event );\n\n\t\t\tswitch ( state ) {\n\n\t\t\t\tcase STATE.TOUCH_ROTATE:\n\n\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\thandleTouchMoveRotate( event );\n\n\t\t\t\t\tscope.update();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase STATE.TOUCH_PAN:\n\n\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\thandleTouchMovePan( event );\n\n\t\t\t\t\tscope.update();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase STATE.TOUCH_DOLLY_PAN:\n\n\t\t\t\t\tif ( scope.enableZoom === false && scope.enablePan === false ) return;\n\n\t\t\t\t\thandleTouchMoveDollyPan( event );\n\n\t\t\t\t\tscope.update();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase STATE.TOUCH_DOLLY_ROTATE:\n\n\t\t\t\t\tif ( scope.enableZoom === false && scope.enableRotate === false ) return;\n\n\t\t\t\t\thandleTouchMoveDollyRotate( event );\n\n\t\t\t\t\tscope.update();\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onContextMenu( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tevent.preventDefault();\n\n\t\t}\n\n\t\tfunction addPointer( event ) {\n\n\t\t\tpointers.push( event );\n\n\t\t}\n\n\t\tfunction removePointer( event ) {\n\n\t\t\tdelete pointerPositions[ event.pointerId ];\n\n\t\t\tfor ( let i = 0; i < pointers.length; i ++ ) {\n\n\t\t\t\tif ( pointers[ i ].pointerId == event.pointerId ) {\n\n\t\t\t\t\tpointers.splice( i, 1 );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction trackPointer( event ) {\n\n\t\t\tlet position = pointerPositions[ event.pointerId ];\n\n\t\t\tif ( position === undefined ) {\n\n\t\t\t\tposition = new Vector2();\n\t\t\t\tpointerPositions[ event.pointerId ] = position;\n\n\t\t\t}\n\n\t\t\tposition.set( event.pageX, event.pageY );\n\n\t\t}\n\n\t\tfunction getSecondPointerPosition( event ) {\n\n\t\t\tconst pointer = ( event.pointerId === pointers[ 0 ].pointerId ) ? pointers[ 1 ] : pointers[ 0 ];\n\n\t\t\treturn pointerPositions[ pointer.pointerId ];\n\n\t\t}\n\n\t\t//\n\n\t\tscope.domElement.addEventListener( 'contextmenu', onContextMenu );\n\n\t\tscope.domElement.addEventListener( 'pointerdown', onPointerDown );\n\t\tscope.domElement.addEventListener( 'pointercancel', onPointerCancel );\n\t\tscope.domElement.addEventListener( 'wheel', onMouseWheel, { passive: false } );\n\n\t\t// force an update at start\n\n\t\tthis.update();\n\n\t}\n\n}\n\n\n// This set of controls performs orbiting, dollying (zooming), and panning.\n// Unlike TrackballControls, it maintains the \"up\" direction object.up (+Y by default).\n// This is very similar to OrbitControls, another set of touch behavior\n//\n//    Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate\n//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish\n//    Pan - left mouse, or arrow keys / touch: one-finger move\n\nclass MapControls extends OrbitControls {\n\n\tconstructor( object, domElement ) {\n\n\t\tsuper( object, domElement );\n\n\t\tthis.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up\n\n\t\tthis.mouseButtons.LEFT = MOUSE.PAN;\n\t\tthis.mouseButtons.RIGHT = MOUSE.ROTATE;\n\n\t\tthis.touches.ONE = TOUCH.PAN;\n\t\tthis.touches.TWO = TOUCH.DOLLY_ROTATE;\n\n\t}\n\n}\n\nexport { OrbitControls, MapControls };\n","/**\n * lil-gui\n * https://lil-gui.georgealways.com\n * @version 0.16.1\n * @author George Michael Brower\n * @license MIT\n */\n\n/**\n * Base class for all controllers.\n */\nclass Controller {\n\n\tconstructor( parent, object, property, className, widgetTag = 'div' ) {\n\n\t\t/**\n\t\t * The GUI that contains this controller.\n\t\t * @type {GUI}\n\t\t */\n\t\tthis.parent = parent;\n\n\t\t/**\n\t\t * The object this controller will modify.\n\t\t * @type {object}\n\t\t */\n\t\tthis.object = object;\n\n\t\t/**\n\t\t * The name of the property to control.\n\t\t * @type {string}\n\t\t */\n\t\tthis.property = property;\n\n\t\t/**\n\t\t * Used to determine if the controller is disabled.\n\t\t * Use `controller.disable( true|false )` to modify this value\n\t\t * @type {boolean}\n\t\t */\n\t\tthis._disabled = false;\n\n\t\t/**\n\t\t * The value of `object[ property ]` when the controller was created.\n\t\t * @type {any}\n\t\t */\n\t\tthis.initialValue = this.getValue();\n\n\t\t/**\n\t\t * The outermost container DOM element for this controller.\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.domElement = document.createElement( 'div' );\n\t\tthis.domElement.classList.add( 'controller' );\n\t\tthis.domElement.classList.add( className );\n\n\t\t/**\n\t\t * The DOM element that contains the controller's name.\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.$name = document.createElement( 'div' );\n\t\tthis.$name.classList.add( 'name' );\n\n\t\tController.nextNameID = Controller.nextNameID || 0;\n\t\tthis.$name.id = `lil-gui-name-${++Controller.nextNameID}`;\n\n\t\t/**\n\t\t * The DOM element that contains the controller's \"widget\" (which differs by controller type).\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.$widget = document.createElement( widgetTag );\n\t\tthis.$widget.classList.add( 'widget' );\n\n\t\t/**\n\t\t * The DOM element that receives the disabled attribute when using disable()\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.$disable = this.$widget;\n\n\t\tthis.domElement.appendChild( this.$name );\n\t\tthis.domElement.appendChild( this.$widget );\n\n\t\tthis.parent.children.push( this );\n\t\tthis.parent.controllers.push( this );\n\n\t\tthis.parent.$children.appendChild( this.domElement );\n\n\t\tthis._listenCallback = this._listenCallback.bind( this );\n\n\t\tthis.name( property );\n\n\t}\n\n\t/**\n\t * Sets the name of the controller and its label in the GUI.\n\t * @param {string} name\n\t * @returns {this}\n\t */\n\tname( name ) {\n\t\t/**\n\t\t * The controller's name. Use `controller.name( 'Name' )` to modify this value.\n\t\t * @type {string}\n\t\t */\n\t\tthis._name = name;\n\t\tthis.$name.innerHTML = name;\n\t\treturn this;\n\t}\n\n\t/**\n\t * Pass a function to be called whenever the value is modified by this controller.\n\t * The function receives the new value as its first parameter. The value of `this` will be the\n\t * controller.\n\t * @param {Function} callback\n\t * @returns {this}\n\t * @example\n\t * const controller = gui.add( object, 'property' );\n\t *\n\t * controller.onChange( function( v ) {\n\t * \tconsole.log( 'The value is now ' + v );\n\t * \tconsole.assert( this === controller );\n\t * } );\n\t */\n\tonChange( callback ) {\n\t\t/**\n\t\t * Used to access the function bound to `onChange` events. Don't modify this value directly.\n\t\t * Use the `controller.onChange( callback )` method instead.\n\t\t * @type {Function}\n\t\t */\n\t\tthis._onChange = callback;\n\t\treturn this;\n\t}\n\n\t/**\n\t * Calls the onChange methods of this controller and its parent GUI.\n\t * @protected\n\t */\n\t_callOnChange() {\n\n\t\tthis.parent._callOnChange( this );\n\n\t\tif ( this._onChange !== undefined ) {\n\t\t\tthis._onChange.call( this, this.getValue() );\n\t\t}\n\n\t\tthis._changed = true;\n\n\t}\n\n\t/**\n\t * Pass a function to be called after this controller has been modified and loses focus.\n\t * @param {Function} callback\n\t * @returns {this}\n\t * @example\n\t * const controller = gui.add( object, 'property' );\n\t *\n\t * controller.onFinishChange( function( v ) {\n\t * \tconsole.log( 'Changes complete: ' + v );\n\t * \tconsole.assert( this === controller );\n\t * } );\n\t */\n\tonFinishChange( callback ) {\n\t\t/**\n\t\t * Used to access the function bound to `onFinishChange` events. Don't modify this value\n\t\t * directly. Use the `controller.onFinishChange( callback )` method instead.\n\t\t * @type {Function}\n\t\t */\n\t\tthis._onFinishChange = callback;\n\t\treturn this;\n\t}\n\n\t/**\n\t * Should be called by Controller when its widgets lose focus.\n\t * @protected\n\t */\n\t_callOnFinishChange() {\n\n\t\tif ( this._changed ) {\n\n\t\t\tthis.parent._callOnFinishChange( this );\n\n\t\t\tif ( this._onFinishChange !== undefined ) {\n\t\t\t\tthis._onFinishChange.call( this, this.getValue() );\n\t\t\t}\n\n\t\t}\n\n\t\tthis._changed = false;\n\n\t}\n\n\t/**\n\t * Sets the controller back to its initial value.\n\t * @returns {this}\n\t */\n\treset() {\n\t\tthis.setValue( this.initialValue );\n\t\tthis._callOnFinishChange();\n\t\treturn this;\n\t}\n\n\t/**\n\t * Enables this controller.\n\t * @param {boolean} enabled\n\t * @returns {this}\n\t * @example\n\t * controller.enable();\n\t * controller.enable( false ); // disable\n\t * controller.enable( controller._disabled ); // toggle\n\t */\n\tenable( enabled = true ) {\n\t\treturn this.disable( !enabled );\n\t}\n\n\t/**\n\t * Disables this controller.\n\t * @param {boolean} disabled\n\t * @returns {this}\n\t * @example\n\t * controller.disable();\n\t * controller.disable( false ); // enable\n\t * controller.disable( !controller._disabled ); // toggle\n\t */\n\tdisable( disabled = true ) {\n\n\t\tif ( disabled === this._disabled ) return this;\n\n\t\tthis._disabled = disabled;\n\n\t\tthis.domElement.classList.toggle( 'disabled', disabled );\n\t\tthis.$disable.toggleAttribute( 'disabled', disabled );\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * Destroys this controller and replaces it with a new option controller. Provided as a more\n\t * descriptive syntax for `gui.add`, but primarily for compatibility with dat.gui.\n\t *\n\t * Use caution, as this method will destroy old references to this controller. It will also\n\t * change controller order if called out of sequence, moving the option controller to the end of\n\t * the GUI.\n\t * @example\n\t * // safe usage\n\t *\n\t * gui.add( object1, 'property' ).options( [ 'a', 'b', 'c' ] );\n\t * gui.add( object2, 'property' );\n\t *\n\t * // danger\n\t *\n\t * const c = gui.add( object1, 'property' );\n\t * gui.add( object2, 'property' );\n\t *\n\t * c.options( [ 'a', 'b', 'c' ] );\n\t * // controller is now at the end of the GUI even though it was added first\n\t *\n\t * assert( c.parent.children.indexOf( c ) === -1 )\n\t * // c references a controller that no longer exists\n\t *\n\t * @param {object|Array} options\n\t * @returns {Controller}\n\t */\n\toptions( options ) {\n\t\tconst controller = this.parent.add( this.object, this.property, options );\n\t\tcontroller.name( this._name );\n\t\tthis.destroy();\n\t\treturn controller;\n\t}\n\n\t/**\n\t * Sets the minimum value. Only works on number controllers.\n\t * @param {number} min\n\t * @returns {this}\n\t */\n\tmin( min ) {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Sets the maximum value. Only works on number controllers.\n\t * @param {number} max\n\t * @returns {this}\n\t */\n\tmax( max ) {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Sets the step. Only works on number controllers.\n\t * @param {number} step\n\t * @returns {this}\n\t */\n\tstep( step ) {\n\t\treturn this;\n\t}\n\n\t/**\n\t * Calls `updateDisplay()` every animation frame. Pass `false` to stop listening.\n\t * @param {boolean} listen\n\t * @returns {this}\n\t */\n\tlisten( listen = true ) {\n\n\t\t/**\n\t\t * Used to determine if the controller is currently listening. Don't modify this value\n\t\t * directly. Use the `controller.listen( true|false )` method instead.\n\t\t * @type {boolean}\n\t\t */\n\t\tthis._listening = listen;\n\n\t\tif ( this._listenCallbackID !== undefined ) {\n\t\t\tcancelAnimationFrame( this._listenCallbackID );\n\t\t\tthis._listenCallbackID = undefined;\n\t\t}\n\n\t\tif ( this._listening ) {\n\t\t\tthis._listenCallback();\n\t\t}\n\n\t\treturn this;\n\n\t}\n\n\t_listenCallback() {\n\n\t\tthis._listenCallbackID = requestAnimationFrame( this._listenCallback );\n\n\t\t// To prevent framerate loss, make sure the value has changed before updating the display.\n\t\t// Note: save() is used here instead of getValue() only because of ColorController. The !== operator\n\t\t// won't work for color objects or arrays, but ColorController.save() always returns a string.\n\n\t\tconst curValue = this.save();\n\n\t\tif ( curValue !== this._listenPrevValue ) {\n\t\t\tthis.updateDisplay();\n\t\t}\n\n\t\tthis._listenPrevValue = curValue;\n\n\t}\n\n\t/**\n\t * Returns `object[ property ]`.\n\t * @returns {any}\n\t */\n\tgetValue() {\n\t\treturn this.object[ this.property ];\n\t}\n\n\t/**\n\t * Sets the value of `object[ property ]`, invokes any `onChange` handlers and updates the display.\n\t * @param {any} value\n\t * @returns {this}\n\t */\n\tsetValue( value ) {\n\t\tthis.object[ this.property ] = value;\n\t\tthis._callOnChange();\n\t\tthis.updateDisplay();\n\t\treturn this;\n\t}\n\n\t/**\n\t * Updates the display to keep it in sync with the current value. Useful for updating your\n\t * controllers when their values have been modified outside of the GUI.\n\t * @returns {this}\n\t */\n\tupdateDisplay() {\n\t\treturn this;\n\t}\n\n\tload( value ) {\n\t\tthis.setValue( value );\n\t\tthis._callOnFinishChange();\n\t\treturn this;\n\t}\n\n\tsave() {\n\t\treturn this.getValue();\n\t}\n\n\t/**\n\t * Destroys this controller and removes it from the parent GUI.\n\t */\n\tdestroy() {\n\t\tthis.listen( false );\n\t\tthis.parent.children.splice( this.parent.children.indexOf( this ), 1 );\n\t\tthis.parent.controllers.splice( this.parent.controllers.indexOf( this ), 1 );\n\t\tthis.parent.$children.removeChild( this.domElement );\n\t}\n\n}\n\nclass BooleanController extends Controller {\n\n\tconstructor( parent, object, property ) {\n\n\t\tsuper( parent, object, property, 'boolean', 'label' );\n\n\t\tthis.$input = document.createElement( 'input' );\n\t\tthis.$input.setAttribute( 'type', 'checkbox' );\n\t\tthis.$input.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$widget.appendChild( this.$input );\n\n\t\tthis.$input.addEventListener( 'change', () => {\n\t\t\tthis.setValue( this.$input.checked );\n\t\t\tthis._callOnFinishChange();\n\t\t} );\n\n\t\tthis.$disable = this.$input;\n\n\t\tthis.updateDisplay();\n\n\t}\n\n\tupdateDisplay() {\n\t\tthis.$input.checked = this.getValue();\n\t\treturn this;\n\t}\n\n}\n\nfunction normalizeColorString( string ) {\n\n\tlet match, result;\n\n\tif ( match = string.match( /(#|0x)?([a-f0-9]{6})/i ) ) {\n\n\t\tresult = match[ 2 ];\n\n\t} else if ( match = string.match( /rgb\\(\\s*(\\d*)\\s*,\\s*(\\d*)\\s*,\\s*(\\d*)\\s*\\)/ ) ) {\n\n\t\tresult = parseInt( match[ 1 ] ).toString( 16 ).padStart( 2, 0 )\n\t\t\t+ parseInt( match[ 2 ] ).toString( 16 ).padStart( 2, 0 )\n\t\t\t+ parseInt( match[ 3 ] ).toString( 16 ).padStart( 2, 0 );\n\n\t} else if ( match = string.match( /^#?([a-f0-9])([a-f0-9])([a-f0-9])$/i ) ) {\n\n\t\tresult = match[ 1 ] + match[ 1 ] + match[ 2 ] + match[ 2 ] + match[ 3 ] + match[ 3 ];\n\n\t}\n\n\tif ( result ) {\n\t\treturn '#' + result;\n\t}\n\n\treturn false;\n\n}\n\nconst STRING = {\n\tisPrimitive: true,\n\tmatch: v => typeof v === 'string',\n\tfromHexString: normalizeColorString,\n\ttoHexString: normalizeColorString\n};\n\nconst INT = {\n\tisPrimitive: true,\n\tmatch: v => typeof v === 'number',\n\tfromHexString: string => parseInt( string.substring( 1 ), 16 ),\n\ttoHexString: value => '#' + value.toString( 16 ).padStart( 6, 0 )\n};\n\nconst ARRAY = {\n\tisPrimitive: false,\n\tmatch: Array.isArray,\n\tfromHexString( string, target, rgbScale = 1 ) {\n\n\t\tconst int = INT.fromHexString( string );\n\n\t\ttarget[ 0 ] = ( int >> 16 & 255 ) / 255 * rgbScale;\n\t\ttarget[ 1 ] = ( int >> 8 & 255 ) / 255 * rgbScale;\n\t\ttarget[ 2 ] = ( int & 255 ) / 255 * rgbScale;\n\n\t},\n\ttoHexString( [ r, g, b ], rgbScale = 1 ) {\n\n\t\trgbScale = 255 / rgbScale;\n\n\t\tconst int = ( r * rgbScale ) << 16 ^\n\t\t\t( g * rgbScale ) << 8 ^\n\t\t\t( b * rgbScale ) << 0;\n\n\t\treturn INT.toHexString( int );\n\n\t}\n};\n\nconst OBJECT = {\n\tisPrimitive: false,\n\tmatch: v => Object( v ) === v,\n\tfromHexString( string, target, rgbScale = 1 ) {\n\n\t\tconst int = INT.fromHexString( string );\n\n\t\ttarget.r = ( int >> 16 & 255 ) / 255 * rgbScale;\n\t\ttarget.g = ( int >> 8 & 255 ) / 255 * rgbScale;\n\t\ttarget.b = ( int & 255 ) / 255 * rgbScale;\n\n\t},\n\ttoHexString( { r, g, b }, rgbScale = 1 ) {\n\n\t\trgbScale = 255 / rgbScale;\n\n\t\tconst int = ( r * rgbScale ) << 16 ^\n\t\t\t( g * rgbScale ) << 8 ^\n\t\t\t( b * rgbScale ) << 0;\n\n\t\treturn INT.toHexString( int );\n\n\t}\n};\n\nconst FORMATS = [ STRING, INT, ARRAY, OBJECT ];\n\nfunction getColorFormat( value ) {\n\treturn FORMATS.find( format => format.match( value ) );\n}\n\nclass ColorController extends Controller {\n\n\tconstructor( parent, object, property, rgbScale ) {\n\n\t\tsuper( parent, object, property, 'color' );\n\n\t\tthis.$input = document.createElement( 'input' );\n\t\tthis.$input.setAttribute( 'type', 'color' );\n\t\tthis.$input.setAttribute( 'tabindex', -1 );\n\t\tthis.$input.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$text = document.createElement( 'input' );\n\t\tthis.$text.setAttribute( 'type', 'text' );\n\t\tthis.$text.setAttribute( 'spellcheck', 'false' );\n\t\tthis.$text.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$display = document.createElement( 'div' );\n\t\tthis.$display.classList.add( 'display' );\n\n\t\tthis.$display.appendChild( this.$input );\n\t\tthis.$widget.appendChild( this.$display );\n\t\tthis.$widget.appendChild( this.$text );\n\n\t\tthis._format = getColorFormat( this.initialValue );\n\t\tthis._rgbScale = rgbScale;\n\n\t\tthis._initialValueHexString = this.save();\n\t\tthis._textFocused = false;\n\n\t\tthis.$input.addEventListener( 'input', () => {\n\t\t\tthis._setValueFromHexString( this.$input.value );\n\t\t} );\n\n\t\tthis.$input.addEventListener( 'blur', () => {\n\t\t\tthis._callOnFinishChange();\n\t\t} );\n\n\t\tthis.$text.addEventListener( 'input', () => {\n\t\t\tconst tryParse = normalizeColorString( this.$text.value );\n\t\t\tif ( tryParse ) {\n\t\t\t\tthis._setValueFromHexString( tryParse );\n\t\t\t}\n\t\t} );\n\n\t\tthis.$text.addEventListener( 'focus', () => {\n\t\t\tthis._textFocused = true;\n\t\t\tthis.$text.select();\n\t\t} );\n\n\t\tthis.$text.addEventListener( 'blur', () => {\n\t\t\tthis._textFocused = false;\n\t\t\tthis.updateDisplay();\n\t\t\tthis._callOnFinishChange();\n\t\t} );\n\n\t\tthis.$disable = this.$text;\n\n\t\tthis.updateDisplay();\n\n\t}\n\n\treset() {\n\t\tthis._setValueFromHexString( this._initialValueHexString );\n\t\treturn this;\n\t}\n\n\t_setValueFromHexString( value ) {\n\n\t\tif ( this._format.isPrimitive ) {\n\n\t\t\tconst newValue = this._format.fromHexString( value );\n\t\t\tthis.setValue( newValue );\n\n\t\t} else {\n\n\t\t\tthis._format.fromHexString( value, this.getValue(), this._rgbScale );\n\t\t\tthis._callOnChange();\n\t\t\tthis.updateDisplay();\n\n\t\t}\n\n\t}\n\n\tsave() {\n\t\treturn this._format.toHexString( this.getValue(), this._rgbScale );\n\t}\n\n\tload( value ) {\n\t\tthis._setValueFromHexString( value );\n\t\tthis._callOnFinishChange();\n\t\treturn this;\n\t}\n\n\tupdateDisplay() {\n\t\tthis.$input.value = this._format.toHexString( this.getValue(), this._rgbScale );\n\t\tif ( !this._textFocused ) {\n\t\t\tthis.$text.value = this.$input.value.substring( 1 );\n\t\t}\n\t\tthis.$display.style.backgroundColor = this.$input.value;\n\t\treturn this;\n\t}\n\n}\n\nclass FunctionController extends Controller {\n\n\tconstructor( parent, object, property ) {\n\n\t\tsuper( parent, object, property, 'function' );\n\n\t\t// Buttons are the only case where widget contains name\n\t\tthis.$button = document.createElement( 'button' );\n\t\tthis.$button.appendChild( this.$name );\n\t\tthis.$widget.appendChild( this.$button );\n\n\t\tthis.$button.addEventListener( 'click', e => {\n\t\t\te.preventDefault();\n\t\t\tthis.getValue().call( this.object );\n\t\t} );\n\n\t\t// enables :active pseudo class on mobile\n\t\tthis.$button.addEventListener( 'touchstart', () => {}, { passive: true } );\n\n\t\tthis.$disable = this.$button;\n\n\t}\n\n}\n\nclass NumberController extends Controller {\n\n\tconstructor( parent, object, property, min, max, step ) {\n\n\t\tsuper( parent, object, property, 'number' );\n\n\t\tthis._initInput();\n\n\t\tthis.min( min );\n\t\tthis.max( max );\n\n\t\tconst stepExplicit = step !== undefined;\n\t\tthis.step( stepExplicit ? step : this._getImplicitStep(), stepExplicit );\n\n\t\tthis.updateDisplay();\n\n\t}\n\n\tmin( min ) {\n\t\tthis._min = min;\n\t\tthis._onUpdateMinMax();\n\t\treturn this;\n\t}\n\n\tmax( max ) {\n\t\tthis._max = max;\n\t\tthis._onUpdateMinMax();\n\t\treturn this;\n\t}\n\n\tstep( step, explicit = true ) {\n\t\tthis._step = step;\n\t\tthis._stepExplicit = explicit;\n\t\treturn this;\n\t}\n\n\tupdateDisplay() {\n\n\t\tconst value = this.getValue();\n\n\t\tif ( this._hasSlider ) {\n\n\t\t\tlet percent = ( value - this._min ) / ( this._max - this._min );\n\t\t\tpercent = Math.max( 0, Math.min( percent, 1 ) );\n\n\t\t\tthis.$fill.style.width = percent * 100 + '%';\n\n\t\t}\n\n\t\tif ( !this._inputFocused ) {\n\t\t\tthis.$input.value = value;\n\t\t}\n\n\t\treturn this;\n\n\t}\n\n\t_initInput() {\n\n\t\tthis.$input = document.createElement( 'input' );\n\t\tthis.$input.setAttribute( 'type', 'number' );\n\t\tthis.$input.setAttribute( 'step', 'any' );\n\t\tthis.$input.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$widget.appendChild( this.$input );\n\n\t\tthis.$disable = this.$input;\n\n\t\tconst onInput = () => {\n\n\t\t\tconst value = parseFloat( this.$input.value );\n\n\t\t\tif ( isNaN( value ) ) return;\n\n\t\t\tthis.setValue( this._clamp( value ) );\n\n\t\t};\n\n\t\t// Keys & mouse wheel\n\t\t// ---------------------------------------------------------------------\n\n\t\tconst increment = delta => {\n\n\t\t\tconst value = parseFloat( this.$input.value );\n\n\t\t\tif ( isNaN( value ) ) return;\n\n\t\t\tthis._snapClampSetValue( value + delta );\n\n\t\t\t// Force the input to updateDisplay when it's focused\n\t\t\tthis.$input.value = this.getValue();\n\n\t\t};\n\n\t\tconst onKeyDown = e => {\n\t\t\tif ( e.code === 'Enter' ) {\n\t\t\t\tthis.$input.blur();\n\t\t\t}\n\t\t\tif ( e.code === 'ArrowUp' ) {\n\t\t\t\te.preventDefault();\n\t\t\t\tincrement( this._step * this._arrowKeyMultiplier( e ) );\n\t\t\t}\n\t\t\tif ( e.code === 'ArrowDown' ) {\n\t\t\t\te.preventDefault();\n\t\t\t\tincrement( this._step * this._arrowKeyMultiplier( e ) * -1 );\n\t\t\t}\n\t\t};\n\n\t\tconst onWheel = e => {\n\t\t\tif ( this._inputFocused ) {\n\t\t\t\te.preventDefault();\n\t\t\t\tincrement( this._step * this._normalizeMouseWheel( e ) );\n\t\t\t}\n\t\t};\n\n\t\t// Vertical drag\n\t\t// ---------------------------------------------------------------------\n\n\t\tlet testingForVerticalDrag = false,\n\t\t\tinitClientX,\n\t\t\tinitClientY,\n\t\t\tprevClientY,\n\t\t\tinitValue,\n\t\t\tdragDelta;\n\n\t\t// Once the mouse is dragged more than DRAG_THRESH px on any axis, we decide\n\t\t// on the user's intent: horizontal means highlight, vertical means drag.\n\t\tconst DRAG_THRESH = 5;\n\n\t\tconst onMouseDown = e => {\n\n\t\t\tinitClientX = e.clientX;\n\t\t\tinitClientY = prevClientY = e.clientY;\n\t\t\ttestingForVerticalDrag = true;\n\n\t\t\tinitValue = this.getValue();\n\t\t\tdragDelta = 0;\n\n\t\t\twindow.addEventListener( 'mousemove', onMouseMove );\n\t\t\twindow.addEventListener( 'mouseup', onMouseUp );\n\n\t\t};\n\n\t\tconst onMouseMove = e => {\n\n\t\t\tif ( testingForVerticalDrag ) {\n\n\t\t\t\tconst dx = e.clientX - initClientX;\n\t\t\t\tconst dy = e.clientY - initClientY;\n\n\t\t\t\tif ( Math.abs( dy ) > DRAG_THRESH ) {\n\n\t\t\t\t\te.preventDefault();\n\t\t\t\t\tthis.$input.blur();\n\t\t\t\t\ttestingForVerticalDrag = false;\n\t\t\t\t\tthis._setDraggingStyle( true, 'vertical' );\n\n\t\t\t\t} else if ( Math.abs( dx ) > DRAG_THRESH ) {\n\n\t\t\t\t\tonMouseUp();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// This isn't an else so that the first move counts towards dragDelta\n\t\t\tif ( !testingForVerticalDrag ) {\n\n\t\t\t\tconst dy = e.clientY - prevClientY;\n\n\t\t\t\tdragDelta -= dy * this._step * this._arrowKeyMultiplier( e );\n\n\t\t\t\t// Clamp dragDelta so we don't have 'dead space' after dragging past bounds.\n\t\t\t\t// We're okay with the fact that bounds can be undefined here.\n\t\t\t\tif ( initValue + dragDelta > this._max ) {\n\t\t\t\t\tdragDelta = this._max - initValue;\n\t\t\t\t} else if ( initValue + dragDelta < this._min ) {\n\t\t\t\t\tdragDelta = this._min - initValue;\n\t\t\t\t}\n\n\t\t\t\tthis._snapClampSetValue( initValue + dragDelta );\n\n\t\t\t}\n\n\t\t\tprevClientY = e.clientY;\n\n\t\t};\n\n\t\tconst onMouseUp = () => {\n\t\t\tthis._setDraggingStyle( false, 'vertical' );\n\t\t\tthis._callOnFinishChange();\n\t\t\twindow.removeEventListener( 'mousemove', onMouseMove );\n\t\t\twindow.removeEventListener( 'mouseup', onMouseUp );\n\t\t};\n\n\t\t// Focus state & onFinishChange\n\t\t// ---------------------------------------------------------------------\n\n\t\tconst onFocus = () => {\n\t\t\tthis._inputFocused = true;\n\t\t};\n\n\t\tconst onBlur = () => {\n\t\t\tthis._inputFocused = false;\n\t\t\tthis.updateDisplay();\n\t\t\tthis._callOnFinishChange();\n\t\t};\n\n\t\tthis.$input.addEventListener( 'input', onInput );\n\t\tthis.$input.addEventListener( 'keydown', onKeyDown );\n\t\tthis.$input.addEventListener( 'wheel', onWheel, { passive: false } );\n\t\tthis.$input.addEventListener( 'mousedown', onMouseDown );\n\t\tthis.$input.addEventListener( 'focus', onFocus );\n\t\tthis.$input.addEventListener( 'blur', onBlur );\n\n\t}\n\n\t_initSlider() {\n\n\t\tthis._hasSlider = true;\n\n\t\t// Build DOM\n\t\t// ---------------------------------------------------------------------\n\n\t\tthis.$slider = document.createElement( 'div' );\n\t\tthis.$slider.classList.add( 'slider' );\n\n\t\tthis.$fill = document.createElement( 'div' );\n\t\tthis.$fill.classList.add( 'fill' );\n\n\t\tthis.$slider.appendChild( this.$fill );\n\t\tthis.$widget.insertBefore( this.$slider, this.$input );\n\n\t\tthis.domElement.classList.add( 'hasSlider' );\n\n\t\t// Map clientX to value\n\t\t// ---------------------------------------------------------------------\n\n\t\tconst map = ( v, a, b, c, d ) => {\n\t\t\treturn ( v - a ) / ( b - a ) * ( d - c ) + c;\n\t\t};\n\n\t\tconst setValueFromX = clientX => {\n\t\t\tconst rect = this.$slider.getBoundingClientRect();\n\t\t\tlet value = map( clientX, rect.left, rect.right, this._min, this._max );\n\t\t\tthis._snapClampSetValue( value );\n\t\t};\n\n\t\t// Mouse drag\n\t\t// ---------------------------------------------------------------------\n\n\t\tconst mouseDown = e => {\n\t\t\tthis._setDraggingStyle( true );\n\t\t\tsetValueFromX( e.clientX );\n\t\t\twindow.addEventListener( 'mousemove', mouseMove );\n\t\t\twindow.addEventListener( 'mouseup', mouseUp );\n\t\t};\n\n\t\tconst mouseMove = e => {\n\t\t\tsetValueFromX( e.clientX );\n\t\t};\n\n\t\tconst mouseUp = () => {\n\t\t\tthis._callOnFinishChange();\n\t\t\tthis._setDraggingStyle( false );\n\t\t\twindow.removeEventListener( 'mousemove', mouseMove );\n\t\t\twindow.removeEventListener( 'mouseup', mouseUp );\n\t\t};\n\n\t\t// Touch drag\n\t\t// ---------------------------------------------------------------------\n\n\t\tlet testingForScroll = false, prevClientX, prevClientY;\n\n\t\tconst beginTouchDrag = e => {\n\t\t\te.preventDefault();\n\t\t\tthis._setDraggingStyle( true );\n\t\t\tsetValueFromX( e.touches[ 0 ].clientX );\n\t\t\ttestingForScroll = false;\n\t\t};\n\n\t\tconst onTouchStart = e => {\n\n\t\t\tif ( e.touches.length > 1 ) return;\n\n\t\t\t// If we're in a scrollable container, we should wait for the first\n\t\t\t// touchmove to see if the user is trying to slide or scroll.\n\t\t\tif ( this._hasScrollBar ) {\n\n\t\t\t\tprevClientX = e.touches[ 0 ].clientX;\n\t\t\t\tprevClientY = e.touches[ 0 ].clientY;\n\t\t\t\ttestingForScroll = true;\n\n\t\t\t} else {\n\n\t\t\t\t// Otherwise, we can set the value straight away on touchstart.\n\t\t\t\tbeginTouchDrag( e );\n\n\t\t\t}\n\n\t\t\twindow.addEventListener( 'touchmove', onTouchMove );\n\t\t\twindow.addEventListener( 'touchend', onTouchEnd );\n\n\t\t};\n\n\t\tconst onTouchMove = e => {\n\n\t\t\tif ( testingForScroll ) {\n\n\t\t\t\tconst dx = e.touches[ 0 ].clientX - prevClientX;\n\t\t\t\tconst dy = e.touches[ 0 ].clientY - prevClientY;\n\n\t\t\t\tif ( Math.abs( dx ) > Math.abs( dy ) ) {\n\n\t\t\t\t\t// We moved horizontally, set the value and stop checking.\n\t\t\t\t\tbeginTouchDrag( e );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// This was, in fact, an attempt to scroll. Abort.\n\t\t\t\t\twindow.removeEventListener( 'touchmove', onTouchMove );\n\t\t\t\t\twindow.removeEventListener( 'touchend', onTouchEnd );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\te.preventDefault();\n\t\t\t\tsetValueFromX( e.touches[ 0 ].clientX );\n\n\t\t\t}\n\n\t\t};\n\n\t\tconst onTouchEnd = () => {\n\t\t\tthis._callOnFinishChange();\n\t\t\tthis._setDraggingStyle( false );\n\t\t\twindow.removeEventListener( 'touchmove', onTouchMove );\n\t\t\twindow.removeEventListener( 'touchend', onTouchEnd );\n\t\t};\n\n\t\t// Mouse wheel\n\t\t// ---------------------------------------------------------------------\n\n\t\t// We have to use a debounced function to call onFinishChange because\n\t\t// there's no way to tell when the user is \"done\" mouse-wheeling.\n\t\tconst callOnFinishChange = this._callOnFinishChange.bind( this );\n\t\tconst WHEEL_DEBOUNCE_TIME = 400;\n\t\tlet wheelFinishChangeTimeout;\n\n\t\tconst onWheel = e => {\n\n\t\t\t// ignore vertical wheels if there's a scrollbar\n\t\t\tconst isVertical = Math.abs( e.deltaX ) < Math.abs( e.deltaY );\n\t\t\tif ( isVertical && this._hasScrollBar ) return;\n\n\t\t\te.preventDefault();\n\n\t\t\t// set value\n\t\t\tconst delta = this._normalizeMouseWheel( e ) * this._step;\n\t\t\tthis._snapClampSetValue( this.getValue() + delta );\n\n\t\t\t// force the input to updateDisplay when it's focused\n\t\t\tthis.$input.value = this.getValue();\n\n\t\t\t// debounce onFinishChange\n\t\t\tclearTimeout( wheelFinishChangeTimeout );\n\t\t\twheelFinishChangeTimeout = setTimeout( callOnFinishChange, WHEEL_DEBOUNCE_TIME );\n\n\t\t};\n\n\t\tthis.$slider.addEventListener( 'mousedown', mouseDown );\n\t\tthis.$slider.addEventListener( 'touchstart', onTouchStart, { passive: false } );\n\t\tthis.$slider.addEventListener( 'wheel', onWheel, { passive: false } );\n\n\t}\n\n\t_setDraggingStyle( active, axis = 'horizontal' ) {\n\t\tif ( this.$slider ) {\n\t\t\tthis.$slider.classList.toggle( 'active', active );\n\t\t}\n\t\tdocument.body.classList.toggle( 'lil-gui-dragging', active );\n\t\tdocument.body.classList.toggle( `lil-gui-${axis}`, active );\n\t}\n\n\t_getImplicitStep() {\n\n\t\tif ( this._hasMin && this._hasMax ) {\n\t\t\treturn ( this._max - this._min ) / 1000;\n\t\t}\n\n\t\treturn 0.1;\n\n\t}\n\n\t_onUpdateMinMax() {\n\n\t\tif ( !this._hasSlider && this._hasMin && this._hasMax ) {\n\n\t\t\t// If this is the first time we're hearing about min and max\n\t\t\t// and we haven't explicitly stated what our step is, let's\n\t\t\t// update that too.\n\t\t\tif ( !this._stepExplicit ) {\n\t\t\t\tthis.step( this._getImplicitStep(), false );\n\t\t\t}\n\n\t\t\tthis._initSlider();\n\t\t\tthis.updateDisplay();\n\n\t\t}\n\n\t}\n\n\t_normalizeMouseWheel( e ) {\n\n\t\tlet { deltaX, deltaY } = e;\n\n\t\t// Safari and Chrome report weird non-integral values for a notched wheel,\n\t\t// but still expose actual lines scrolled via wheelDelta. Notched wheels\n\t\t// should behave the same way as arrow keys.\n\t\tif ( Math.floor( e.deltaY ) !== e.deltaY && e.wheelDelta ) {\n\t\t\tdeltaX = 0;\n\t\t\tdeltaY = -e.wheelDelta / 120;\n\t\t\tdeltaY *= this._stepExplicit ? 1 : 10;\n\t\t}\n\n\t\tconst wheel = deltaX + -deltaY;\n\n\t\treturn wheel;\n\n\t}\n\n\t_arrowKeyMultiplier( e ) {\n\n\t\tlet mult = this._stepExplicit ? 1 : 10;\n\n\t\tif ( e.shiftKey ) {\n\t\t\tmult *= 10;\n\t\t} else if ( e.altKey ) {\n\t\t\tmult /= 10;\n\t\t}\n\n\t\treturn mult;\n\n\t}\n\n\t_snap( value ) {\n\n\t\t// This would be the logical way to do things, but floating point errors.\n\t\t// return Math.round( value / this._step ) * this._step;\n\n\t\t// Using inverse step solves a lot of them, but not all\n\t\t// const inverseStep = 1 / this._step;\n\t\t// return Math.round( value * inverseStep ) / inverseStep;\n\n\t\t// Not happy about this, but haven't seen it break.\n\t\tconst r = Math.round( value / this._step ) * this._step;\n\t\treturn parseFloat( r.toPrecision( 15 ) );\n\n\t}\n\n\t_clamp( value ) {\n\t\t// either condition is false if min or max is undefined\n\t\tif ( value < this._min ) value = this._min;\n\t\tif ( value > this._max ) value = this._max;\n\t\treturn value;\n\t}\n\n\t_snapClampSetValue( value ) {\n\t\tthis.setValue( this._clamp( this._snap( value ) ) );\n\t}\n\n\tget _hasScrollBar() {\n\t\tconst root = this.parent.root.$children;\n\t\treturn root.scrollHeight > root.clientHeight;\n\t}\n\n\tget _hasMin() {\n\t\treturn this._min !== undefined;\n\t}\n\n\tget _hasMax() {\n\t\treturn this._max !== undefined;\n\t}\n\n}\n\nclass OptionController extends Controller {\n\n\tconstructor( parent, object, property, options ) {\n\n\t\tsuper( parent, object, property, 'option' );\n\n\t\tthis.$select = document.createElement( 'select' );\n\t\tthis.$select.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$display = document.createElement( 'div' );\n\t\tthis.$display.classList.add( 'display' );\n\n\t\tthis._values = Array.isArray( options ) ? options : Object.values( options );\n\t\tthis._names = Array.isArray( options ) ? options : Object.keys( options );\n\n\t\tthis._names.forEach( name => {\n\t\t\tconst $option = document.createElement( 'option' );\n\t\t\t$option.innerHTML = name;\n\t\t\tthis.$select.appendChild( $option );\n\t\t} );\n\n\t\tthis.$select.addEventListener( 'change', () => {\n\t\t\tthis.setValue( this._values[ this.$select.selectedIndex ] );\n\t\t\tthis._callOnFinishChange();\n\t\t} );\n\n\t\tthis.$select.addEventListener( 'focus', () => {\n\t\t\tthis.$display.classList.add( 'focus' );\n\t\t} );\n\n\t\tthis.$select.addEventListener( 'blur', () => {\n\t\t\tthis.$display.classList.remove( 'focus' );\n\t\t} );\n\n\t\tthis.$widget.appendChild( this.$select );\n\t\tthis.$widget.appendChild( this.$display );\n\n\t\tthis.$disable = this.$select;\n\n\t\tthis.updateDisplay();\n\n\t}\n\n\tupdateDisplay() {\n\t\tconst value = this.getValue();\n\t\tconst index = this._values.indexOf( value );\n\t\tthis.$select.selectedIndex = index;\n\t\tthis.$display.innerHTML = index === -1 ? value : this._names[ index ];\n\t\treturn this;\n\t}\n\n}\n\nclass StringController extends Controller {\n\n\tconstructor( parent, object, property ) {\n\n\t\tsuper( parent, object, property, 'string' );\n\n\t\tthis.$input = document.createElement( 'input' );\n\t\tthis.$input.setAttribute( 'type', 'text' );\n\t\tthis.$input.setAttribute( 'aria-labelledby', this.$name.id );\n\n\t\tthis.$input.addEventListener( 'input', () => {\n\t\t\tthis.setValue( this.$input.value );\n\t\t} );\n\n\t\tthis.$input.addEventListener( 'keydown', e => {\n\t\t\tif ( e.code === 'Enter' ) {\n\t\t\t\tthis.$input.blur();\n\t\t\t}\n\t\t} );\n\n\t\tthis.$input.addEventListener( 'blur', () => {\n\t\t\tthis._callOnFinishChange();\n\t\t} );\n\n\t\tthis.$widget.appendChild( this.$input );\n\n\t\tthis.$disable = this.$input;\n\n\t\tthis.updateDisplay();\n\n\t}\n\n\tupdateDisplay() {\n\t\tthis.$input.value = this.getValue();\n\t\treturn this;\n\t}\n\n}\n\nconst stylesheet = `.lil-gui {\n  font-family: var(--font-family);\n  font-size: var(--font-size);\n  line-height: 1;\n  font-weight: normal;\n  font-style: normal;\n  text-align: left;\n  background-color: var(--background-color);\n  color: var(--text-color);\n  user-select: none;\n  -webkit-user-select: none;\n  touch-action: manipulation;\n  --background-color: #1f1f1f;\n  --text-color: #ebebeb;\n  --title-background-color: #111111;\n  --title-text-color: #ebebeb;\n  --widget-color: #424242;\n  --hover-color: #4f4f4f;\n  --focus-color: #595959;\n  --number-color: #2cc9ff;\n  --string-color: #a2db3c;\n  --font-size: 11px;\n  --input-font-size: 11px;\n  --font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Arial, sans-serif;\n  --font-family-mono: Menlo, Monaco, Consolas, \"Droid Sans Mono\", monospace;\n  --padding: 4px;\n  --spacing: 4px;\n  --widget-height: 20px;\n  --name-width: 45%;\n  --slider-knob-width: 2px;\n  --slider-input-width: 27%;\n  --color-input-width: 27%;\n  --slider-input-min-width: 45px;\n  --color-input-min-width: 45px;\n  --folder-indent: 7px;\n  --widget-padding: 0 0 0 3px;\n  --widget-border-radius: 2px;\n  --checkbox-size: calc(0.75 * var(--widget-height));\n  --scrollbar-width: 5px;\n}\n.lil-gui, .lil-gui * {\n  box-sizing: border-box;\n  margin: 0;\n  padding: 0;\n}\n.lil-gui.root {\n  width: var(--width, 245px);\n  display: flex;\n  flex-direction: column;\n}\n.lil-gui.root > .title {\n  background: var(--title-background-color);\n  color: var(--title-text-color);\n}\n.lil-gui.root > .children {\n  overflow-x: hidden;\n  overflow-y: auto;\n}\n.lil-gui.root > .children::-webkit-scrollbar {\n  width: var(--scrollbar-width);\n  height: var(--scrollbar-width);\n  background: var(--background-color);\n}\n.lil-gui.root > .children::-webkit-scrollbar-thumb {\n  border-radius: var(--scrollbar-width);\n  background: var(--focus-color);\n}\n@media (pointer: coarse) {\n  .lil-gui.allow-touch-styles {\n    --widget-height: 28px;\n    --padding: 6px;\n    --spacing: 6px;\n    --font-size: 13px;\n    --input-font-size: 16px;\n    --folder-indent: 10px;\n    --scrollbar-width: 7px;\n    --slider-input-min-width: 50px;\n    --color-input-min-width: 65px;\n  }\n}\n.lil-gui.force-touch-styles {\n  --widget-height: 28px;\n  --padding: 6px;\n  --spacing: 6px;\n  --font-size: 13px;\n  --input-font-size: 16px;\n  --folder-indent: 10px;\n  --scrollbar-width: 7px;\n  --slider-input-min-width: 50px;\n  --color-input-min-width: 65px;\n}\n.lil-gui.autoPlace {\n  max-height: 100%;\n  position: fixed;\n  top: 0;\n  right: 15px;\n  z-index: 1001;\n}\n\n.lil-gui .controller {\n  display: flex;\n  align-items: center;\n  padding: 0 var(--padding);\n  margin: var(--spacing) 0;\n}\n.lil-gui .controller.disabled {\n  opacity: 0.5;\n}\n.lil-gui .controller.disabled, .lil-gui .controller.disabled * {\n  pointer-events: none !important;\n}\n.lil-gui .controller > .name {\n  min-width: var(--name-width);\n  flex-shrink: 0;\n  white-space: pre;\n  padding-right: var(--spacing);\n  line-height: var(--widget-height);\n}\n.lil-gui .controller .widget {\n  position: relative;\n  display: flex;\n  align-items: center;\n  width: 100%;\n  min-height: var(--widget-height);\n}\n.lil-gui .controller.string input {\n  color: var(--string-color);\n}\n.lil-gui .controller.boolean .widget {\n  cursor: pointer;\n}\n.lil-gui .controller.color .display {\n  width: 100%;\n  height: var(--widget-height);\n  border-radius: var(--widget-border-radius);\n  position: relative;\n}\n@media (hover: hover) {\n  .lil-gui .controller.color .display:hover:before {\n    content: \" \";\n    display: block;\n    position: absolute;\n    border-radius: var(--widget-border-radius);\n    border: 1px solid #fff9;\n    top: 0;\n    right: 0;\n    bottom: 0;\n    left: 0;\n  }\n}\n.lil-gui .controller.color input[type=color] {\n  opacity: 0;\n  width: 100%;\n  height: 100%;\n  cursor: pointer;\n}\n.lil-gui .controller.color input[type=text] {\n  margin-left: var(--spacing);\n  font-family: var(--font-family-mono);\n  min-width: var(--color-input-min-width);\n  width: var(--color-input-width);\n  flex-shrink: 0;\n}\n.lil-gui .controller.option select {\n  opacity: 0;\n  position: absolute;\n  width: 100%;\n  max-width: 100%;\n}\n.lil-gui .controller.option .display {\n  position: relative;\n  pointer-events: none;\n  border-radius: var(--widget-border-radius);\n  height: var(--widget-height);\n  line-height: var(--widget-height);\n  max-width: 100%;\n  overflow: hidden;\n  word-break: break-all;\n  padding-left: 0.55em;\n  padding-right: 1.75em;\n  background: var(--widget-color);\n}\n@media (hover: hover) {\n  .lil-gui .controller.option .display.focus {\n    background: var(--focus-color);\n  }\n}\n.lil-gui .controller.option .display.active {\n  background: var(--focus-color);\n}\n.lil-gui .controller.option .display:after {\n  font-family: \"lil-gui\";\n  content: \"↕\";\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  padding-right: 0.375em;\n}\n.lil-gui .controller.option .widget,\n.lil-gui .controller.option select {\n  cursor: pointer;\n}\n@media (hover: hover) {\n  .lil-gui .controller.option .widget:hover .display {\n    background: var(--hover-color);\n  }\n}\n.lil-gui .controller.number input {\n  color: var(--number-color);\n}\n.lil-gui .controller.number.hasSlider input {\n  margin-left: var(--spacing);\n  width: var(--slider-input-width);\n  min-width: var(--slider-input-min-width);\n  flex-shrink: 0;\n}\n.lil-gui .controller.number .slider {\n  width: 100%;\n  height: var(--widget-height);\n  background-color: var(--widget-color);\n  border-radius: var(--widget-border-radius);\n  padding-right: var(--slider-knob-width);\n  overflow: hidden;\n  cursor: ew-resize;\n  touch-action: pan-y;\n}\n@media (hover: hover) {\n  .lil-gui .controller.number .slider:hover {\n    background-color: var(--hover-color);\n  }\n}\n.lil-gui .controller.number .slider.active {\n  background-color: var(--focus-color);\n}\n.lil-gui .controller.number .slider.active .fill {\n  opacity: 0.95;\n}\n.lil-gui .controller.number .fill {\n  height: 100%;\n  border-right: var(--slider-knob-width) solid var(--number-color);\n  box-sizing: content-box;\n}\n\n.lil-gui-dragging .lil-gui {\n  --hover-color: var(--widget-color);\n}\n.lil-gui-dragging * {\n  cursor: ew-resize !important;\n}\n\n.lil-gui-dragging.lil-gui-vertical * {\n  cursor: ns-resize !important;\n}\n\n.lil-gui .title {\n  --title-height: calc(var(--widget-height) + var(--spacing) * 1.25);\n  height: var(--title-height);\n  line-height: calc(var(--title-height) - 4px);\n  font-weight: 600;\n  padding: 0 var(--padding);\n  -webkit-tap-highlight-color: transparent;\n  cursor: pointer;\n  outline: none;\n  text-decoration-skip: objects;\n}\n.lil-gui .title:before {\n  font-family: \"lil-gui\";\n  content: \"▾\";\n  padding-right: 2px;\n  display: inline-block;\n}\n.lil-gui .title:active {\n  background: var(--title-background-color);\n  opacity: 0.75;\n}\n@media (hover: hover) {\n  body:not(.lil-gui-dragging) .lil-gui .title:hover {\n    background: var(--title-background-color);\n    opacity: 0.85;\n  }\n  .lil-gui .title:focus {\n    text-decoration: underline var(--focus-color);\n  }\n}\n.lil-gui.root > .title:focus {\n  text-decoration: none !important;\n}\n.lil-gui.closed > .title:before {\n  content: \"▸\";\n}\n.lil-gui.closed > .children {\n  transform: translateY(-7px);\n  opacity: 0;\n}\n.lil-gui.closed:not(.transition) > .children {\n  display: none;\n}\n.lil-gui.transition > .children {\n  transition-duration: 300ms;\n  transition-property: height, opacity, transform;\n  transition-timing-function: cubic-bezier(0.2, 0.6, 0.35, 1);\n  overflow: hidden;\n  pointer-events: none;\n}\n.lil-gui .children:empty:before {\n  content: \"Empty\";\n  padding: 0 var(--padding);\n  margin: var(--spacing) 0;\n  display: block;\n  height: var(--widget-height);\n  font-style: italic;\n  line-height: var(--widget-height);\n  opacity: 0.5;\n}\n.lil-gui.root > .children > .lil-gui > .title {\n  border: 0 solid var(--widget-color);\n  border-width: 1px 0;\n  transition: border-color 300ms;\n}\n.lil-gui.root > .children > .lil-gui.closed > .title {\n  border-bottom-color: transparent;\n}\n.lil-gui + .controller {\n  border-top: 1px solid var(--widget-color);\n  margin-top: 0;\n  padding-top: var(--spacing);\n}\n.lil-gui .lil-gui .lil-gui > .title {\n  border: none;\n}\n.lil-gui .lil-gui .lil-gui > .children {\n  border: none;\n  margin-left: var(--folder-indent);\n  border-left: 2px solid var(--widget-color);\n}\n.lil-gui .lil-gui .controller {\n  border: none;\n}\n\n.lil-gui input {\n  -webkit-tap-highlight-color: transparent;\n  border: 0;\n  outline: none;\n  font-family: var(--font-family);\n  font-size: var(--input-font-size);\n  border-radius: var(--widget-border-radius);\n  height: var(--widget-height);\n  background: var(--widget-color);\n  color: var(--text-color);\n  width: 100%;\n}\n@media (hover: hover) {\n  .lil-gui input:hover {\n    background: var(--hover-color);\n  }\n  .lil-gui input:active {\n    background: var(--focus-color);\n  }\n}\n.lil-gui input:disabled {\n  opacity: 1;\n}\n.lil-gui input[type=text],\n.lil-gui input[type=number] {\n  padding: var(--widget-padding);\n}\n.lil-gui input[type=text]:focus,\n.lil-gui input[type=number]:focus {\n  background: var(--focus-color);\n}\n.lil-gui input::-webkit-outer-spin-button,\n.lil-gui input::-webkit-inner-spin-button {\n  -webkit-appearance: none;\n  margin: 0;\n}\n.lil-gui input[type=number] {\n  -moz-appearance: textfield;\n}\n.lil-gui input[type=checkbox] {\n  appearance: none;\n  -webkit-appearance: none;\n  height: var(--checkbox-size);\n  width: var(--checkbox-size);\n  border-radius: var(--widget-border-radius);\n  text-align: center;\n  cursor: pointer;\n}\n.lil-gui input[type=checkbox]:checked:before {\n  font-family: \"lil-gui\";\n  content: \"✓\";\n  font-size: var(--checkbox-size);\n  line-height: var(--checkbox-size);\n}\n@media (hover: hover) {\n  .lil-gui input[type=checkbox]:focus {\n    box-shadow: inset 0 0 0 1px var(--focus-color);\n  }\n}\n.lil-gui button {\n  -webkit-tap-highlight-color: transparent;\n  outline: none;\n  cursor: pointer;\n  font-family: var(--font-family);\n  font-size: var(--font-size);\n  color: var(--text-color);\n  width: 100%;\n  height: var(--widget-height);\n  text-transform: none;\n  background: var(--widget-color);\n  border-radius: var(--widget-border-radius);\n  border: 1px solid var(--widget-color);\n  text-align: center;\n  line-height: calc(var(--widget-height) - 4px);\n}\n@media (hover: hover) {\n  .lil-gui button:hover {\n    background: var(--hover-color);\n    border-color: var(--hover-color);\n  }\n  .lil-gui button:focus {\n    border-color: var(--focus-color);\n  }\n}\n.lil-gui button:active {\n  background: var(--focus-color);\n}\n\n@font-face {\n  font-family: \"lil-gui\";\n  src: 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format(\"woff\");\n}`;\n\nfunction _injectStyles( cssContent ) {\n\tconst injected = document.createElement( 'style' );\n\tinjected.innerHTML = cssContent;\n\tconst before = document.querySelector( 'head link[rel=stylesheet], head style' );\n\tif ( before ) {\n\t\tdocument.head.insertBefore( injected, before );\n\t} else {\n\t\tdocument.head.appendChild( injected );\n\t}\n}\n\nlet stylesInjected = false;\n\nclass GUI {\n\n\t/**\n\t * Creates a panel that holds controllers.\n\t * @example\n\t * new GUI();\n\t * new GUI( { container: document.getElementById( 'custom' ) } );\n\t *\n\t * @param {object} [options]\n\t * @param {boolean} [options.autoPlace=true]\n\t * Adds the GUI to `document.body` and fixes it to the top right of the page.\n\t *\n\t * @param {HTMLElement} [options.container]\n\t * Adds the GUI to this DOM element. Overrides `autoPlace`.\n\t *\n\t * @param {number} [options.width=245]\n\t * Width of the GUI in pixels, usually set when name labels become too long. Note that you can make\n\t * name labels wider in CSS with `.lil‑gui { ‑‑name‑width: 55% }`\n\t *\n\t * @param {string} [options.title=Controls]\n\t * Name to display in the title bar.\n\t *\n\t * @param {boolean} [options.injectStyles=true]\n\t * Injects the default stylesheet into the page if this is the first GUI.\n\t * Pass `false` to use your own stylesheet.\n\t *\n\t * @param {number} [options.touchStyles=true]\n\t * Makes controllers larger on touch devices. Pass `false` to disable touch styles.\n\t *\n\t * @param {GUI} [options.parent]\n\t * Adds this GUI as a child in another GUI. Usually this is done for you by `addFolder()`.\n\t *\n\t */\n\tconstructor( {\n\t\tparent,\n\t\tautoPlace = parent === undefined,\n\t\tcontainer,\n\t\twidth,\n\t\ttitle = 'Controls',\n\t\tinjectStyles = true,\n\t\ttouchStyles = true\n\t} = {} ) {\n\n\t\t/**\n\t\t * The GUI containing this folder, or `undefined` if this is the root GUI.\n\t\t * @type {GUI}\n\t\t */\n\t\tthis.parent = parent;\n\n\t\t/**\n\t\t * The top level GUI containing this folder, or `this` if this is the root GUI.\n\t\t * @type {GUI}\n\t\t */\n\t\tthis.root = parent ? parent.root : this;\n\n\t\t/**\n\t\t * The list of controllers and folders contained by this GUI.\n\t\t * @type {Array<GUI|Controller>}\n\t\t */\n\t\tthis.children = [];\n\n\t\t/**\n\t\t * The list of controllers contained by this GUI.\n\t\t * @type {Array<Controller>}\n\t\t */\n\t\tthis.controllers = [];\n\n\t\t/**\n\t\t * The list of folders contained by this GUI.\n\t\t * @type {Array<GUI>}\n\t\t */\n\t\tthis.folders = [];\n\n\t\t/**\n\t\t * Used to determine if the GUI is closed. Use `gui.open()` or `gui.close()` to change this.\n\t\t * @type {boolean}\n\t\t */\n\t\tthis._closed = false;\n\n\t\t/**\n\t\t * Used to determine if the GUI is hidden. Use `gui.show()` or `gui.hide()` to change this.\n\t\t * @type {boolean}\n\t\t */\n\t\tthis._hidden = false;\n\n\t\t/**\n\t\t * The outermost container element.\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.domElement = document.createElement( 'div' );\n\t\tthis.domElement.classList.add( 'lil-gui' );\n\n\t\t/**\n\t\t * The DOM element that contains the title.\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.$title = document.createElement( 'div' );\n\t\tthis.$title.classList.add( 'title' );\n\t\tthis.$title.setAttribute( 'role', 'button' );\n\t\tthis.$title.setAttribute( 'aria-expanded', true );\n\t\tthis.$title.setAttribute( 'tabindex', 0 );\n\n\t\tthis.$title.addEventListener( 'click', () => this.openAnimated( this._closed ) );\n\t\tthis.$title.addEventListener( 'keydown', e => {\n\t\t\tif ( e.code === 'Enter' || e.code === 'Space' ) {\n\t\t\t\te.preventDefault();\n\t\t\t\tthis.$title.click();\n\t\t\t}\n\t\t} );\n\n\t\t// enables :active pseudo class on mobile\n\t\tthis.$title.addEventListener( 'touchstart', () => {}, { passive: true } );\n\n\t\t/**\n\t\t * The DOM element that contains children.\n\t\t * @type {HTMLElement}\n\t\t */\n\t\tthis.$children = document.createElement( 'div' );\n\t\tthis.$children.classList.add( 'children' );\n\n\t\tthis.domElement.appendChild( this.$title );\n\t\tthis.domElement.appendChild( this.$children );\n\n\t\tthis.title( title );\n\n\t\tif ( touchStyles ) {\n\t\t\tthis.domElement.classList.add( 'allow-touch-styles' );\n\t\t}\n\n\t\tif ( this.parent ) {\n\n\t\t\tthis.parent.children.push( this );\n\t\t\tthis.parent.folders.push( this );\n\n\t\t\tthis.parent.$children.appendChild( this.domElement );\n\n\t\t\t// Stop the constructor early, everything onward only applies to root GUI's\n\t\t\treturn;\n\n\t\t}\n\n\t\tthis.domElement.classList.add( 'root' );\n\n\t\t// Inject stylesheet if we haven't done that yet\n\t\tif ( !stylesInjected && injectStyles ) {\n\t\t\t_injectStyles( stylesheet );\n\t\t\tstylesInjected = true;\n\t\t}\n\n\t\tif ( container ) {\n\n\t\t\tcontainer.appendChild( this.domElement );\n\n\t\t} else if ( autoPlace ) {\n\n\t\t\tthis.domElement.classList.add( 'autoPlace' );\n\t\t\tdocument.body.appendChild( this.domElement );\n\n\t\t}\n\n\t\tif ( width ) {\n\t\t\tthis.domElement.style.setProperty( '--width', width + 'px' );\n\t\t}\n\n\t\t// Don't fire global key events while typing in the GUI:\n\t\tthis.domElement.addEventListener( 'keydown', e => e.stopPropagation() );\n\t\tthis.domElement.addEventListener( 'keyup', e => e.stopPropagation() );\n\n\t}\n\n\t/**\n\t * Adds a controller to the GUI, inferring controller type using the `typeof` operator.\n\t * @example\n\t * gui.add( object, 'property' );\n\t * gui.add( object, 'number', 0, 100, 1 );\n\t * gui.add( object, 'options', [ 1, 2, 3 ] );\n\t *\n\t * @param {object} object The object the controller will modify.\n\t * @param {string} property Name of the property to control.\n\t * @param {number|object|Array} [$1] Minimum value for number controllers, or the set of\n\t * selectable values for a dropdown.\n\t * @param {number} [max] Maximum value for number controllers.\n\t * @param {number} [step] Step value for number controllers.\n\t * @returns {Controller}\n\t */\n\tadd( object, property, $1, max, step ) {\n\n\t\tif ( Object( $1 ) === $1 ) {\n\n\t\t\treturn new OptionController( this, object, property, $1 );\n\n\t\t}\n\n\t\tconst initialValue = object[ property ];\n\n\t\tswitch ( typeof initialValue ) {\n\n\t\t\tcase 'number':\n\n\t\t\t\treturn new NumberController( this, object, property, $1, max, step );\n\n\t\t\tcase 'boolean':\n\n\t\t\t\treturn new BooleanController( this, object, property );\n\n\t\t\tcase 'string':\n\n\t\t\t\treturn new StringController( this, object, property );\n\n\t\t\tcase 'function':\n\n\t\t\t\treturn new FunctionController( this, object, property );\n\n\t\t}\n\n\t\tconsole.error( `gui.add failed\n\tproperty:`, property, `\n\tobject:`, object, `\n\tvalue:`, initialValue );\n\n\t}\n\n\t/**\n\t * Adds a color controller to the GUI.\n\t * @example\n\t * params = {\n\t * \tcssColor: '#ff00ff',\n\t * \trgbColor: { r: 0, g: 0.2, b: 0.4 },\n\t * \tcustomRange: [ 0, 127, 255 ],\n\t * };\n\t *\n\t * gui.addColor( params, 'cssColor' );\n\t * gui.addColor( params, 'rgbColor' );\n\t * gui.addColor( params, 'customRange', 255 );\n\t *\n\t * @param {object} object The object the controller will modify.\n\t * @param {string} property Name of the property to control.\n\t * @param {number} rgbScale Maximum value for a color channel when using an RGB color. You may\n\t * need to set this to 255 if your colors are too dark.\n\t * @returns {Controller}\n\t */\n\taddColor( object, property, rgbScale = 1 ) {\n\t\treturn new ColorController( this, object, property, rgbScale );\n\t}\n\n\t/**\n\t * Adds a folder to the GUI, which is just another GUI. This method returns\n\t * the nested GUI so you can add controllers to it.\n\t * @example\n\t * const folder = gui.addFolder( 'Position' );\n\t * folder.add( position, 'x' );\n\t * folder.add( position, 'y' );\n\t * folder.add( position, 'z' );\n\t *\n\t * @param {string} title Name to display in the folder's title bar.\n\t * @returns {GUI}\n\t */\n\taddFolder( title ) {\n\t\treturn new GUI( { parent: this, title } );\n\t}\n\n\t/**\n\t * Recalls values that were saved with `gui.save()`.\n\t * @param {object} obj\n\t * @param {boolean} recursive Pass false to exclude folders descending from this GUI.\n\t * @returns {this}\n\t */\n\tload( obj, recursive = true ) {\n\n\t\tif ( obj.controllers ) {\n\n\t\t\tthis.controllers.forEach( c => {\n\n\t\t\t\tif ( c instanceof FunctionController ) return;\n\n\t\t\t\tif ( c._name in obj.controllers ) {\n\t\t\t\t\tc.load( obj.controllers[ c._name ] );\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t}\n\n\t\tif ( recursive && obj.folders ) {\n\n\t\t\tthis.folders.forEach( f => {\n\n\t\t\t\tif ( f._title in obj.folders ) {\n\t\t\t\t\tf.load( obj.folders[ f._title ] );\n\t\t\t\t}\n\n\t\t\t} );\n\n\t\t}\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * Returns an object mapping controller names to values. The object can be passed to `gui.load()` to\n\t * recall these values.\n\t * @example\n\t * {\n\t * \tcontrollers: {\n\t * \t\tprop1: 1,\n\t * \t\tprop2: 'value',\n\t * \t\t...\n\t * \t},\n\t * \tfolders: {\n\t * \t\tfolderName1: { controllers, folders },\n\t * \t\tfolderName2: { controllers, folders }\n\t * \t\t...\n\t * \t}\n\t * }\n\t *\n\t * @param {boolean} recursive Pass false to exclude folders descending from this GUI.\n\t * @returns {object}\n\t */\n\tsave( recursive = true ) {\n\n\t\tconst obj = {\n\t\t\tcontrollers: {},\n\t\t\tfolders: {}\n\t\t};\n\n\t\tthis.controllers.forEach( c => {\n\n\t\t\tif ( c instanceof FunctionController ) return;\n\n\t\t\tif ( c._name in obj.controllers ) {\n\t\t\t\tthrow new Error( `Cannot save GUI with duplicate property \"${c._name}\"` );\n\t\t\t}\n\n\t\t\tobj.controllers[ c._name ] = c.save();\n\n\t\t} );\n\n\t\tif ( recursive ) {\n\n\t\t\tthis.folders.forEach( f => {\n\n\t\t\t\tif ( f._title in obj.folders ) {\n\t\t\t\t\tthrow new Error( `Cannot save GUI with duplicate folder \"${f._title}\"` );\n\t\t\t\t}\n\n\t\t\t\tobj.folders[ f._title ] = f.save();\n\n\t\t\t} );\n\n\t\t}\n\n\t\treturn obj;\n\n\t}\n\n\t/**\n\t * Opens a GUI or folder. GUI and folders are open by default.\n\t * @param {boolean} open Pass false to close\n\t * @returns {this}\n\t * @example\n\t * gui.open(); // open\n\t * gui.open( false ); // close\n\t * gui.open( gui._closed ); // toggle\n\t */\n\topen( open = true ) {\n\n\t\tthis._closed = !open;\n\n\t\tthis.$title.setAttribute( 'aria-expanded', !this._closed );\n\t\tthis.domElement.classList.toggle( 'closed', this._closed );\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * Closes the GUI.\n\t * @returns {this}\n\t */\n\tclose() {\n\t\treturn this.open( false );\n\t}\n\n\t/**\n\t * Shows the GUI after it's been hidden.\n\t * @param {boolean} show\n\t * @returns {this}\n\t * @example\n\t * gui.show();\n\t * gui.show( false ); // hide\n\t * gui.show( gui._hidden ); // toggle\n\t */\n\tshow( show = true ) {\n\n\t\tthis._hidden = !show;\n\n\t\tthis.domElement.style.display = this._hidden ? 'none' : '';\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * Hides the GUI.\n\t * @returns {this}\n\t */\n\thide() {\n\t\treturn this.show( false );\n\t}\n\n\topenAnimated( open = true ) {\n\n\t\t// set state immediately\n\t\tthis._closed = !open;\n\n\t\tthis.$title.setAttribute( 'aria-expanded', !this._closed );\n\n\t\t// wait for next frame to measure $children\n\t\trequestAnimationFrame( () => {\n\n\t\t\t// explicitly set initial height for transition\n\t\t\tconst initialHeight = this.$children.clientHeight;\n\t\t\tthis.$children.style.height = initialHeight + 'px';\n\n\t\t\tthis.domElement.classList.add( 'transition' );\n\n\t\t\tconst onTransitionEnd = e => {\n\t\t\t\tif ( e.target !== this.$children ) return;\n\t\t\t\tthis.$children.style.height = '';\n\t\t\t\tthis.domElement.classList.remove( 'transition' );\n\t\t\t\tthis.$children.removeEventListener( 'transitionend', onTransitionEnd );\n\t\t\t};\n\n\t\t\tthis.$children.addEventListener( 'transitionend', onTransitionEnd );\n\n\t\t\t// todo: this is wrong if children's scrollHeight makes for a gui taller than maxHeight\n\t\t\tconst targetHeight = !open ? 0 : this.$children.scrollHeight;\n\n\t\t\tthis.domElement.classList.toggle( 'closed', !open );\n\n\t\t\trequestAnimationFrame( () => {\n\t\t\t\tthis.$children.style.height = targetHeight + 'px';\n\t\t\t} );\n\n\t\t} );\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * Change the title of this GUI.\n\t * @param {string} title\n\t * @returns {this}\n\t */\n\ttitle( title ) {\n\t\t/**\n\t\t * Current title of the GUI. Use `gui.title( 'Title' )` to modify this value.\n\t\t * @type {string}\n\t\t */\n\t\tthis._title = title;\n\t\tthis.$title.innerHTML = title;\n\t\treturn this;\n\t}\n\n\t/**\n\t * Resets all controllers to their initial values.\n\t * @param {boolean} recursive Pass false to exclude folders descending from this GUI.\n\t * @returns {this}\n\t */\n\treset( recursive = true ) {\n\t\tconst controllers = recursive ? this.controllersRecursive() : this.controllers;\n\t\tcontrollers.forEach( c => c.reset() );\n\t\treturn this;\n\t}\n\n\t/**\n\t * Pass a function to be called whenever a controller in this GUI changes.\n\t * @param {function({object:object, property:string, value:any, controller:Controller})} callback\n\t * @returns {this}\n\t * @example\n\t * gui.onChange( event => {\n\t * \tevent.object     // object that was modified\n\t * \tevent.property   // string, name of property\n\t * \tevent.value      // new value of controller\n\t * \tevent.controller // controller that was modified\n\t * } );\n\t */\n\tonChange( callback ) {\n\t\t/**\n\t\t * Used to access the function bound to `onChange` events. Don't modify this value\n\t\t * directly. Use the `gui.onChange( callback )` method instead.\n\t\t * @type {Function}\n\t\t */\n\t\tthis._onChange = callback;\n\t\treturn this;\n\t}\n\n\t_callOnChange( controller ) {\n\n\t\tif ( this.parent ) {\n\t\t\tthis.parent._callOnChange( controller );\n\t\t}\n\n\t\tif ( this._onChange !== undefined ) {\n\t\t\tthis._onChange.call( this, {\n\t\t\t\tobject: controller.object,\n\t\t\t\tproperty: controller.property,\n\t\t\t\tvalue: controller.getValue(),\n\t\t\t\tcontroller\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Pass a function to be called whenever a controller in this GUI has finished changing.\n\t * @param {function({object:object, property:string, value:any, controller:Controller})} callback\n\t * @returns {this}\n\t * @example\n\t * gui.onFinishChange( event => {\n\t * \tevent.object     // object that was modified\n\t * \tevent.property   // string, name of property\n\t * \tevent.value      // new value of controller\n\t * \tevent.controller // controller that was modified\n\t * } );\n\t */\n\tonFinishChange( callback ) {\n\t\t/**\n\t\t * Used to access the function bound to `onFinishChange` events. Don't modify this value\n\t\t * directly. Use the `gui.onFinishChange( callback )` method instead.\n\t\t * @type {Function}\n\t\t */\n\t\tthis._onFinishChange = callback;\n\t\treturn this;\n\t}\n\n\t_callOnFinishChange( controller ) {\n\n\t\tif ( this.parent ) {\n\t\t\tthis.parent._callOnFinishChange( controller );\n\t\t}\n\n\t\tif ( this._onFinishChange !== undefined ) {\n\t\t\tthis._onFinishChange.call( this, {\n\t\t\t\tobject: controller.object,\n\t\t\t\tproperty: controller.property,\n\t\t\t\tvalue: controller.getValue(),\n\t\t\t\tcontroller\n\t\t\t} );\n\t\t}\n\t}\n\n\t/**\n\t * Destroys all DOM elements and event listeners associated with this GUI\n\t */\n\tdestroy() {\n\n\t\tif ( this.parent ) {\n\t\t\tthis.parent.children.splice( this.parent.children.indexOf( this ), 1 );\n\t\t\tthis.parent.folders.splice( this.parent.folders.indexOf( this ), 1 );\n\t\t}\n\n\t\tif ( this.domElement.parentElement ) {\n\t\t\tthis.domElement.parentElement.removeChild( this.domElement );\n\t\t}\n\n\t\tArray.from( this.children ).forEach( c 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