X-Git-Url: https://gitweb.ps.run/cloth_sim/blobdiff_plain/8bf51c36d322cb8d4f099d3475563ee4e520ab92..eac8eb4ec5115f16fc17b94fb194fdc1c005ddb5:/Scripts/main.js

diff --git a/Scripts/main.js b/Scripts/main.js
index 5e68a4f..1a30f7a 100644
--- a/Scripts/main.js
+++ b/Scripts/main.js
@@ -1,19 +1,19 @@
 
 
 function addLights(scene){
-  scene.add( new THREE.AmbientLight( 0x222222 ) );
+  scene.add(new THREE.AmbientLight(0x222222));
 
-  const light1 = new THREE.PointLight( 0xffffff, 1, 50 );
-  light1.position.set( 15, 1, 40 );
-  scene.add( light1 );
+  const light1 = new THREE.PointLight(0xffffff, 1, 50);
+  light1.position.set(15, 1, 40);
+  scene.add(light1);
 
-  const light2 = new THREE.PointLight( 0xffffff, 1, 50 );
-  light2.position.set( -15, 0, 40 );
-  scene.add( light2 );
+  const light2 = new THREE.PointLight(0xffffff, 1, 50);
+  light2.position.set(-15, 0, 40);
+  scene.add(light2);
 
-  const light3 = new THREE.PointLight( 0xffffff, 1, 50 );
-  light3.position.set( 0, -1, 40 );
-  scene.add( light3 );
+  const light3 = new THREE.PointLight(0xffffff, 1, 50);
+  light3.position.set(0, -1, 40);
+  scene.add(light3);
 }
 
 /**
@@ -45,11 +45,11 @@ function setup_scene(canvasSpace) {
     });
 
   /** add flag pole */
-  const geometry = new THREE.CylinderGeometry( 0.02, 0.02, 5, 32 );
-  const material = new THREE.MeshStandardMaterial( {color: 0xffffff} );
-  const cylinder = new THREE.Mesh( geometry, material );
+  const geometry = new THREE.CylinderGeometry(0.02, 0.02, 5, 32);
+  const material = new THREE.MeshStandardMaterial({color: 0xffffff});
+  const cylinder = new THREE.Mesh(geometry, material);
   cylinder.position.set(-0.5, -2.25, 0);
-  scene.add( cylinder );
+  scene.add(cylinder);
 
   /** add global light */
   const directionalLight = new THREE.DirectionalLight(0xffffff, 1);
@@ -82,13 +82,15 @@ function init() {
   const loader = new THREE.TextureLoader();
   //Red color: 0xC70039
 
+  /** Create cloth and generate mesh */
   const cloth = new Cloth(1, 0.5, 20, 20);
   const clothGeometry = cloth.generateGeometry();
-  const clothMaterial = new THREE.MeshStandardMaterial({ map: loader.load('Textures/hsrm.jpg'), color: 0xffffff, side: THREE.DoubleSide, flatShading: false});
+  const clothMaterial = new THREE.MeshStandardMaterial({ map: loader.load('Textures/hsrm2.png'), color: 0xffffff, side: THREE.DoubleSide, flatShading: false });
   //const clothMaterial = new THREE.MeshStandardMaterial({ color: 0xC70039, side: THREE.DoubleSide, flatShading: false });
   const clothMesh = new THREE.Mesh(clothGeometry, clothMaterial);
   scene.add(clothMesh);
   
+  /** Register wind checkbox */
   document.getElementById("windToggle").checked = options.wind;
   document.getElementById("windToggle").onchange = (e) => {
     options.wind = e.target.checked;
@@ -96,26 +98,39 @@ function init() {
 
   let raycaster = new THREE.Raycaster();
   let intersects;
-  let rightMousePressed;
+  let windKeyDown = false;
+  let dragKeyDown = false;
+  let draggedIndex = -1;
   /**
    * function called every frame
    * @param {number} dt - time passed since last frame in ms
    */
   function animate(dt) {
+    /** run simulation step */
     cloth.simulate(dt / 1000);
 
     cloth.updateGeometry(clothGeometry);
-    
-    raycaster.setFromCamera( new THREE.Vector2((mousePos.x / w) * 2 - 1, ((h - mousePos.y) / h) * 2 - 1), camera );
 
-    // intersects = raycaster.intersectObject( mesh );
-
-    // if ( intersects.length > 0 && rightMousePressed) {
-    //   // Cloth mouse interaction
-    // }
+    /** raycast from camera to cursor */
+    raycaster.setFromCamera(new THREE.Vector2((mousePos.x / w) * 2 - 1, ((h - mousePos.y) / h) * 2 - 1), camera);
+    intersects = raycaster.intersectObject(clothMesh);
+
+    /** provide user interaction */
+    if (intersects.length > 0) {
+      if (windKeyDown)
+        cloth.blow(camera.position, intersects);
+      /** "grab" vertex index */
+      if (dragKeyDown && draggedIndex == -1)
+        draggedIndex = intersects[0].face.a;
+    }
+    if (dragKeyDown && draggedIndex != -1)
+      cloth.drag(calculateMousePosToWorld(mousePos), draggedIndex);
+
+    /** queue next frame */
     setTimeout(() => {
       animate(frameTime);
     }, frameTime);
+
     renderer.render(scene, camera);
   }
 
@@ -138,7 +153,7 @@ function init() {
    * start rendering
    */
   if (canvas.getContext) {
-    animate(performance.now());
+    animate(frameTime);
   }
 
   
@@ -147,8 +162,6 @@ function init() {
   canvas.onmousemove = (evt) => {
     mousePos.x = evt.clientX;
     mousePos.y = evt.clientY;
-
-    //cloth.mouseMove(calculateMousePosToWorld(evt));
   };
 
   /**
@@ -158,38 +171,40 @@ function init() {
     evt.preventDefault();
   }, false);
 
+  /** register key events */
+  document.onkeydown = (evt) => {
+    if (evt.code === "KeyW")
+      windKeyDown = true;
+    if (evt.code === "KeyD")
+      dragKeyDown = true;
+  };
 
-  canvas.onmousedown = (evt) => {
-
-    // Check mouse click
-    rightMousePressed = evt.button == 2;
-    
-    if(intersects.length > 0 && evt.button == 0){
-      //cloth.mousePress(intersects);
-    } 
-  }
-  
-  canvas.onmouseup = (evt) => {
-    //cloth.mouseRelease();
-    rightMousePressed = false;
-  }
+  document.onkeyup = (evt) => {
+    if (evt.code === "KeyW")
+      windKeyDown = false;
+    if (evt.code === "KeyD") {
+      dragKeyDown = false;
+      draggedIndex = -1;
+    }
+  };
 
-  function calculateMousePosToWorld(evt){
+  /** helper function to turn mouse position into 3D coordinates */
+  function calculateMousePosToWorld(mousePos){
     var vec = new THREE.Vector3(); // create once and reuse
     var pos = new THREE.Vector3(); // create once and reuse
 
     vec.set(
-      ( evt.clientX / window.innerWidth ) * 2 - 1,
-    - ( evt.clientY / window.innerHeight ) * 2 + 1,
-      0.5 );
+      (mousePos.x / window.innerWidth) * 2 - 1,
+    - (mousePos.y / window.innerHeight) * 2 + 1,
+      0.5);
 
-    vec.unproject( camera );
+    vec.unproject(camera);
 
-    vec.sub( camera.position ).normalize();
+    vec.sub(camera.position).normalize();
 
     var distance = - camera.position.z / vec.z;
 
-    pos.copy( camera.position ).add( vec.multiplyScalar( distance ) );
+    pos.copy(camera.position).add(vec.multiplyScalar(distance));
     return pos;
   }
 }
\ No newline at end of file