diff options
Diffstat (limited to 'Scripts/main.js')
| -rw-r--r-- | Scripts/main.js | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/Scripts/main.js b/Scripts/main.js deleted file mode 100644 index 1a30f7a..0000000 --- a/Scripts/main.js +++ /dev/null @@ -1,210 +0,0 @@ -
-
-function addLights(scene){
- scene.add(new THREE.AmbientLight(0x222222));
-
- 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 light3 = new THREE.PointLight(0xffffff, 1, 50);
- light3.position.set(0, -1, 40);
- scene.add(light3);
-}
-
-/**
- * setup THREE JS Scene, Camera and Renderer
- */
-function setup_scene(canvasSpace) {
- const scene = new THREE.Scene();
- const camera = new THREE.PerspectiveCamera(75, window.innerWidth / (window.innerHeight - canvasSpace), 0.1, 1000);
- const renderer = new THREE.WebGLRenderer();
- /** size canvas to leave some space for UI */
- renderer.setSize(window.innerWidth, window.innerHeight - canvasSpace);
- renderer.antialias = true;
- /** embed canvas in HTML */
- document.getElementById("threejscontainer").appendChild(renderer.domElement);
-
- /** add orbit controls */
- const controls = new THREE.OrbitControls(camera, renderer.domElement);
- controls.target.set(0, 0, 0);
- controls.update();
-
- /** add scene background */
- const loader = new THREE.TextureLoader();
- const texture = loader.load(
- 'Textures/tears_of_steel_bridge_2k.jpg',
- () => {
- const rt = new THREE.WebGLCubeRenderTarget(texture.image.height);
- rt.fromEquirectangularTexture(renderer, texture);
- scene.background = rt;
- });
-
- /** 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);
- cylinder.position.set(-0.5, -2.25, 0);
- scene.add(cylinder);
-
- /** add global light */
- const directionalLight = new THREE.DirectionalLight(0xffffff, 1);
- scene.add(directionalLight);
-
- /** position camera */
- camera.position.z = 2;
- addLights(scene);
- return [scene, camera, renderer];
-}
-
-/** call "init" when document is fully loaded */
-document.body.onload = init;
-
-function init() {
- let mousePos = new THREE.Vector2();
-
- /**
- * Space left empty under canvas
- * for UI elements
- */
- const canvasSpace = 200;
-
- /** Constant Frame Time */
- const frameTime = 1000.0 / 200.0;
-
- /** Setup scene */
- let [scene, camera, renderer] = setup_scene(canvasSpace);
-
- 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/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;
- };
-
- let raycaster = new THREE.Raycaster();
- let intersects;
- 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);
-
- /** 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);
- }
-
-
- /** add callback for window resize */
- let canvas = document.getElementsByTagName("canvas")[0];
- let w = window.innerWidth;
- let h = window.innerHeight - canvasSpace;
- let resize = function () {
- w = window.innerWidth;
- h = window.innerHeight - canvasSpace;
- canvas.width = w;
- canvas.height = h;
- }
- window.onresize = resize;
- resize();
-
- /**
- * if canvas has been successfully initialized
- * start rendering
- */
- if (canvas.getContext) {
- animate(frameTime);
- }
-
-
-
- /** add mouse move callback */
- canvas.onmousemove = (evt) => {
- mousePos.x = evt.clientX;
- mousePos.y = evt.clientY;
- };
-
- /**
- * Prevent context menu while blowing wind
- */
- canvas.addEventListener('contextmenu', function(evt) {
- evt.preventDefault();
- }, false);
-
- /** register key events */
- document.onkeydown = (evt) => {
- if (evt.code === "KeyW")
- windKeyDown = true;
- if (evt.code === "KeyD")
- dragKeyDown = true;
- };
-
- document.onkeyup = (evt) => {
- if (evt.code === "KeyW")
- windKeyDown = false;
- if (evt.code === "KeyD") {
- dragKeyDown = false;
- draggedIndex = -1;
- }
- };
-
- /** 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(
- (mousePos.x / window.innerWidth) * 2 - 1,
- - (mousePos.y / window.innerHeight) * 2 + 1,
- 0.5);
-
- vec.unproject(camera);
-
- vec.sub(camera.position).normalize();
-
- var distance = - camera.position.z / vec.z;
-
- pos.copy(camera.position).add(vec.multiplyScalar(distance));
- return pos;
- }
-}
\ No newline at end of file |