diff options
Diffstat (limited to 'Scripts/main.js')
| -rw-r--r-- | Scripts/main.js | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/Scripts/main.js b/Scripts/main.js index e69de29..4d87337 100644 --- a/Scripts/main.js +++ b/Scripts/main.js @@ -0,0 +1,181 @@ +//import { } from './cloth.js';
+//import { OrbitControls } from './OrbitControls.js';
+
+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 / 60.0;
+
+ /** Setup scene */
+ let [scene, camera, renderer] = setup_scene(canvasSpace);
+
+ // Add Cloth Initialization
+
+ let raycaster = new THREE.Raycaster();
+ let intersects;
+ let rightMousePressed;
+ /**
+ * function called every frame
+ * @param {number} dt - time passed since last frame in ms
+ */
+ function animate(dt) {
+ // simulate cloth
+
+ 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
+ // }
+ 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(performance.now());
+ }
+
+
+
+ /** add mouse move callback */
+ canvas.onmousemove = (evt) => {
+ mousePos.x = evt.clientX;
+ mousePos.y = evt.clientY;
+
+ //cloth.mouseMove(calculateMousePosToWorld(evt));
+ };
+
+ /**
+ * Prevent context menu while blowing wind
+ */
+ canvas.addEventListener('contextmenu', function(evt) {
+ evt.preventDefault();
+ }, false);
+
+
+ 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;
+ }
+
+ function calculateMousePosToWorld(evt){
+ 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 );
+
+ 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 |