123 lines
3.6 KiB
JavaScript
123 lines
3.6 KiB
JavaScript
/**
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* Copyright 2016 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const THREE = require('three')
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var geometry = new THREE.PlaneGeometry( 1, 1, 1 )
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var material = new THREE.MeshBasicMaterial( {color: 0x1FB7EC, side: THREE.DoubleSide} )
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var aiMaterial = new THREE.MeshBasicMaterial( {color: 0xFFB729, side: THREE.DoubleSide} )
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window.zero = new THREE.Vector3(0, 0, 0)
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function scale(value, inMin, inMax, min, max){
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return ((value - inMin) / (inMax - inMin)) * (max - min) + min
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}
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class Roll {
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constructor(container){
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this._element = document.createElement('div')
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this._element.id = 'roll'
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container.appendChild(this._element)
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this._camera = new THREE.OrthographicCamera(0, 1, 1, 0, 1, 1000 )
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this._camera.position.z = 1
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this._camera.lookAt(new THREE.Vector3(0, 0, 0))
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this._scene = new THREE.Scene()
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this._renderer = new THREE.WebGLRenderer({alpha: true})
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this._renderer.setClearColor(0x000000, 0)
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this._renderer.setPixelRatio( window.devicePixelRatio )
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this._renderer.sortObjects = false
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this._element.appendChild(this._renderer.domElement)
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this._currentNotes = {}
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window.camera = this._camera
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//set the size initially
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this._resize()
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//start the loop
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this._boundLoop = this._loop.bind(this)
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this._boundLoop()
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window.addEventListener('resize', this._resize.bind(this))
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}
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keyDown(midi, box, ai=false){
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const selector = ai ? `ai${midi}` : midi
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if (!this._currentNotes.hasOwnProperty(selector)){
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this._currentNotes[selector] = []
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}
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if (midi && box){
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//translate the box coords to this space
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const initialScaling = 10000
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const plane = new THREE.Mesh( geometry, ai ? aiMaterial : material )
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const margin = 4
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const width = box.width - margin * 2
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plane.scale.set(width, initialScaling, 1)
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plane.position.z = 0
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plane.position.x = box.left + margin + width / 2
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plane.position.y = this._element.clientHeight + this._camera.position.y + initialScaling / 2
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this._scene.add(plane)
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this._currentNotes[selector].push({
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plane : plane,
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position: this._camera.position.y
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})
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}
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}
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keyUp(midi, ai=false){
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const selector = ai ? `ai${midi}` : midi
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if (this._currentNotes[selector] && this._currentNotes[selector].length){
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const note = this._currentNotes[selector].shift()
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const plane = note.plane
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const position = note.position
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// get the distance covered
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plane.scale.y = Math.max(this._camera.position.y - position, 5)
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plane.position.y = this._element.clientHeight + position + plane.scale.y / 2
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} else {
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// console.log(midi)
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// setTimeout(() => this.keyUp(midi, ai), 100)
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}
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}
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_resize(){
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var frustumSize = 1000
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var aspect = this._element.clientWidth / this._element.clientHeight
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//make it match the screen pixesl
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this._camera.left = 0
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this._camera.bottom = this._element.clientHeight
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this._camera.right = this._element.clientWidth
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this._camera.top = 0
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//update things
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this._camera.updateProjectionMatrix()
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this._renderer.setSize( this._element.clientWidth, this._element.clientHeight )
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}
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_loop(){
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requestAnimationFrame(this._boundLoop)
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this._renderer.render( this._scene, this._camera )
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this._camera.position.y += 2
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}
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}
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export {Roll} |