cloth-cloth collision

[cloth_sim] / Scripts / main.js

diff --git a/Scripts/main.js b/Scripts/main.js
index 8c61f82566a2653bc8f890435f7a41a30f098186..588e8f1160c0632a4d61daee836ecbb0c12bc562 100644 (file)
--- a/Scripts/main.js
+++ b/Scripts/main.js
@@ -1,42 +1,23 @@
 import { Face, Spring, Cloth } from './cloth.js';\r
 \r
+function addLights(scene){\r
+  \r
+  scene.add( new THREE.AmbientLight( 0x222222 ) );\r
 \r
-/**\r
- * rendering\r
- * Einheiten konsistent\r
- * Wind\r
- * evtl. an Stoff ziehen\r
- */\r
-\r
-\r
-class Point {\r
-  constructor(x, y) {\r
-    this.x = x;\r
-    this.y = y;\r
-  }\r
-\r
-  add(that) {\r
-    return new Point(\r
-      this.x + that.x,\r
-      this.y + that.y\r
-    );\r
-  }\r
+  const light1 = new THREE.PointLight( 0xffffff, 1, 50 );\r
+  light1.position.set( 15, 1, 40 );\r
+  scene.add( light1 );\r
 \r
-  sub(that) {\r
-    return new Point(\r
-      this.x - that.x,\r
-      this.y - that.y\r
-    );\r
-  }\r
+  const light2 = new THREE.PointLight( 0xffffff, 1, 50 );\r
+  light2.position.set( -15, 0, 40 );\r
+  scene.add( light2 );\r
 \r
-  dist(that) {\r
-    let a = this.x - that.x;\r
-    let b = this.y - that.y;\r
-    return Math.sqrt(a * a + b * b)\r
-  }\r
+  const light3 = new THREE.PointLight( 0xffffff, 1, 50 );\r
+  light3.position.set( 0, -1, 40 );\r
+  scene.add( light3 );\r
+  \r
 }\r
 \r
-\r
 /**\r
  * setup THREE JS Scene, Camera and Renderer\r
  */\r
@@ -54,9 +35,9 @@ function setup_scene(canvasSpace) {
   scene.add(directionalLight);\r
 \r
   /** position camera */\r
-  camera.position.y = 5;\r
+  camera.position.y = 3;\r
   camera.position.z = 10;\r
-\r
+  addLights(scene);\r
   return [scene, camera, renderer];\r
 }\r
 \r
@@ -64,7 +45,7 @@ function setup_scene(canvasSpace) {
 document.body.onload = init;\r
 \r
 function init() {\r
-  let mousePos = new Point();\r
+  let mousePos = new THREE.Vector2();\r
   let previousClothSimulation;\r
   \r
   /**\r
@@ -81,18 +62,20 @@ function init() {
   \r
   /** setup cloth and generate debug mesh */\r
   let cloth = new Cloth();\r
-  cloth.createBasic(10, 10, 10, 10);\r
+  cloth.createBasic(10, 10, 20, 20);\r
   //cloth.createDebugMesh(scene);\r
 \r
-  const material = new THREE.MeshBasicMaterial({ color: 0x0000ff });\r
+\r
+  const material = new THREE.MeshStandardMaterial({ color: 0xC70039, side: THREE.DoubleSide, flatShading: false });\r
   const mesh = new THREE.Mesh(cloth.geometry, material);\r
-  //const mesh = new THREE.WireframeGeometry(cloth.geometry);\r
-  //const line = new THREE.LineSegments(mesh);\r
-  //line.material.depthTest = false;\r
-  //line.material.opacity = 0.25;\r
-  //line.material.transparent = true;\r
+\r
   scene.add(mesh);\r
 \r
+\r
+  \r
+  let raycaster = new THREE.Raycaster();\r
+  let intersects;\r
+  let rightMousePressed;\r
   /**\r
    * function called every frame\r
    * @param {number} dt - time passed since last frame in ms\r
@@ -100,17 +83,27 @@ function init() {
   function animate(dt) {\r
     cloth.simulate(dt/1000);\r
 \r
+    raycaster.setFromCamera( new THREE.Vector2((mousePos.x / w) * 2 - 1, ((h - mousePos.y) / h) * 2 - 1), camera );\r
+\r
+    intersects = raycaster.intersectObject( mesh );\r
+\r
+    if ( intersects.length > 0 && rightMousePressed) {\r
+      cloth.wind(intersects);\r
+    }\r
     setTimeout(() => {\r
       animate(frameTime);\r
     }, frameTime);\r
     renderer.render(scene, camera);\r
   }\r
 \r
+\r
   /** add callback for window resize */\r
   let canvas = document.getElementsByTagName("canvas")[0];\r
+  let w = window.innerWidth;\r
+  let h = window.innerHeight - canvasSpace;\r
   let resize = function () {\r
-    let w = window.innerWidth;\r
-    let h = window.innerHeight - 200;\r
+    w = window.innerWidth;\r
+    h = window.innerHeight - canvasSpace;\r
     canvas.width = w;\r
     canvas.height = h;\r
   }\r
@@ -125,9 +118,55 @@ function init() {
     animate(performance.now());\r
   }\r
 \r
+  \r
+\r
   /** add mouse move callback */\r
   canvas.onmousemove = (evt) => {\r
     mousePos.x = evt.clientX;\r
     mousePos.y = evt.clientY;\r
+\r
+    cloth.mouseMove(calculateMousePosToWorld(evt));\r
   };\r
+\r
+  /**\r
+   * Prevent context menu while blowing wind\r
+   */\r
+  canvas.addEventListener('contextmenu', function(evt) { \r
+    evt.preventDefault();\r
+  }, false);\r
+\r
+\r
+  canvas.onmousedown = (evt) => {\r
+\r
+    // Check mouse click\r
+    rightMousePressed = evt.button == 2;\r
+    \r
+    if(intersects.length > 0 && evt.button == 0){\r
+      cloth.mousePress(intersects);\r
+    } \r
+  }\r
+  \r
+  canvas.onmouseup = (evt) => {\r
+    cloth.mouseRelease();\r
+    rightMousePressed = false;\r
+  }\r
+\r
+  function calculateMousePosToWorld(evt){\r
+    var vec = new THREE.Vector3(); // create once and reuse\r
+    var pos = new THREE.Vector3(); // create once and reuse\r
+\r
+    vec.set(\r
+      ( evt.clientX / window.innerWidth ) * 2 - 1,\r
+    - ( evt.clientY / window.innerHeight ) * 2 + 1,\r
+      0.5 );\r
+\r
+    vec.unproject( camera );\r
+\r
+    vec.sub( camera.position ).normalize();\r
+\r
+    var distance = - camera.position.z / vec.z;\r
+\r
+    pos.copy( camera.position ).add( vec.multiplyScalar( distance ) );\r
+    return pos;\r
+  }\r
 }
\ No newline at end of file