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HW2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
#info {
position: absolute;
top: 0px; width: 100%;
font-family: Monospace;
font-size: 20px;
padding: 5px;
text-align: center;
color: #003333
}
a {color: purple}
</style>
</head>
<body>
<div id = "info">
<br> Collision<br>
<br><button id = "toggle">Collision Sound</button><br>
</div>
<audio id="collisionsound" style="display:none">
<source src="https://940235carl.github.io/Game-Program/collisionsound.wav" type='audio/wav'>
</audio>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/110/three.min.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<script>
var scene, renderer, camera;
var collisionSound,Pucks=[],Walls=[],Lights=[],ON =1,boxposx = -70,Boxs=[],check=0,ON2=0;
var turn = false;
$("#toggle").click(function(){
turn =!turn;
});
class Puck{
constructor(pnx,pnz,posx,posz,color){
this.puck = new THREE.Mesh (new THREE.CylinderGeometry (10,10,5,32), new THREE.MeshBasicMaterial ({color:color}));
this.pos = new THREE.Vector3(pnx,0,pnz);
this.vel = new THREE.Vector3(posx,0,posz);
this.force = new THREE.Vector3(0,0,0);
scene.add(this.puck);
this.light = new THREE.PointLight(color,1,500);
scene.add(this.light);
}
}
class wall{
constructor(sx,sy,sz, px,py,pz , ptx,pty,ptz , nx,ny,nz , mat){
this.box=new THREE.Mesh(new THREE.BoxGeometry(sx,sy,sz),mat);
this.box.position.set(px,py,pz);
this.point=new THREE.Vector3(ptx,pty,ptz);
this.normal=new THREE.Vector3(nx,ny,nz);
scene.add(this.box);
}
}
class Box{
constructor(vel,px,py,pz){
this.box = new THREE.Mesh(new THREE.BoxGeometry(50,20,10),new THREE.MeshLambertMaterial({color:0x3427c4}));
this.box.position.set(px,py,pz);
scene.add(this.box);
this.v = vel;
this.normal = new THREE.Vector3(0,0,0);
this.point = new THREE.Vector3(0,0,0);
}
}
function get_random_color()
{
var color ="";
for(var i = 0; i <3; i++) {
var sub = Math.floor(Math.random() * 256).toString(16);
color += (sub.length == 1?"0" + sub : sub);
}
return"#" + color;
}
init();
animate();
function init() {
collisionSound = document.getElementById ('collisionsound');
renderer = new THREE.WebGLRenderer( {antialias:true} );
var width = window.innerWidth;
var height = window.innerHeight;
renderer.setSize (width, height);
renderer.setClearColor (0x888888);
document.body.appendChild (renderer.domElement);
scene = new THREE.Scene();
//puck
for(var i = 0; i < 5; i++){
var posx = -70 + (Math.random() * ((70 - (-70)) + 1));
var posz = -70 + (Math.random() * ((70 - (-70)) + 1));
var vx = -70 + (Math.random() * ((70 - (-70)) + 1));
var vz = -70 + (Math.random() * ((70 - (-70)) + 1));
var lights = get_random_color();
var puck = new Puck(posx,posz,vx,vz,lights);
Pucks.push(puck);
}
// light
// floor
var cubeGeometry = new THREE.BoxGeometry (200,6,200);
var cubeMaterial = new THREE.MeshPhongMaterial ({color: 0x888888});
cube = new THREE.Mesh (cubeGeometry, cubeMaterial);
cube.position.set (0,-5,0);
scene.add (cube);
////////////////////////////////////////////// wall
var wallMaterial = new THREE.MeshLambertMaterial ({color: 0x385fc9,opacity:0.2,transparent:true});
var wall1 = new wall(5,20,200, -102.5,5,0, -100,0,0, 1,0,0,wallMaterial);
var wall2 = new wall(5,20,200, 102.5,5,0, 100,0,0, -1,0,0,wallMaterial);
var wall3 = new wall(200,20,5, 0,5,-102.5, 0,0,-100, 0,0,1,wallMaterial);
var wall4 = new wall(200,20,5, 0,5,102.5, 0,0,100, 0,0,-1,wallMaterial);
Walls.push(wall1,wall2,wall3,wall4);
//console.log(Walls[0].normal);
//////////////////////////////////////////////
camera = new THREE.PerspectiveCamera (45, width/height, 1, 10000);
camera.position.y = 80;
camera.position.z = 200;
camera.lookAt (new THREE.Vector3(0,0,0));
controls = new THREE.OrbitControls (camera, renderer.domElement);
var pointLight = new THREE.PointLight (0xffffff);
pointLight.position.set (0,300,200);
var light = new THREE.AmbientLight( 0x404040 ); // soft white light
light.position.set (0,300,200);
scene.add( light );
scene.add (pointLight);
var box2 = new Box(2,70,0,-60)
var box1 = new Box(1,-70,0,40);
Boxs.push(box1,box2);
window.addEventListener ('resize', onWindowResize, false);
}
function onWindowResize () {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize (window.innerWidth, window.innerHeight);
}
function animate() {
var dps = 1e-3;
var dt = 0.05;
var cR = 1.0;
for(var i = 0 ; i< 5; i++){
Pucks[i].vel.add(Pucks[i].force.clone().multiplyScalar(dt));
Pucks[i].pos.add(Pucks[i].vel.clone().multiplyScalar (dt));
Pucks[i].puck.position.copy (Pucks[i].pos);
Pucks[i].light.position.copy(Pucks[i].pos);
Pucks[i].light.position.y+=10;
}
if(ON==1){
Boxs[0].box.position.x+=Boxs[0].v;
if(Boxs[0].box.position.x>70) ON=0;
}
else{
Boxs[0].box.position.x-=Boxs[0].v;
if(Boxs[0].box.position.x<-70) ON=1;
}
if(ON2==1){
Boxs[1].box.position.x+=Boxs[1].v;
if(Boxs[1].box.position.x>70) ON2=0;
}
else{
Boxs[1].box.position.x-=Boxs[1].v;
if(Boxs[1].box.position.x<-70) ON2=1;
}
// puck.pos += puck.vel*dt;
for(var i = 0 ; i < 5 ;i++){
for(var j = 0 ; j < 4 ; j++){
if(Pucks[i].pos.clone().sub(Walls[j].point).dot(Walls[j].normal)<dps+10){
if(turn== true) collisionSound.play();
var vN = Walls[j].normal.clone().multiplyScalar(Pucks[i].vel.dot(Walls[j].normal));
var vT = Pucks[i].vel.clone().sub(vN);
Pucks[i].vel.copy(vT.add(vN.multiplyScalar(-cR)));
Pucks[i].pos.add(Walls[j].normal.clone().multiplyScalar(10-(Walls[j].normal.clone().dot(Pucks[i].pos.clone().sub(Walls[j].point)))));
}
}
}
for(var i = 0 ; i < 5 ; i++ ){
for(var j = 0 ; j < 5 ;j++){
if( i == j ) continue;
if(Pucks[i].pos.distanceTo(Pucks[j].pos)<20){
let v1 = Pucks[i].vel;
let v2 = Pucks[j].vel;
let x1 = Pucks[i].pos;
let x2 = Pucks[j].pos;
let v1subv2 = v1.clone().sub(v2);
let v2subv1 = v2.clone().sub(v1);
let x1subx2 = x1.clone().sub(x2);
let x2subx1 = x2.clone().sub(x1);
let dot1 = v1subv2.clone().dot(x1subx2.clone());
let dot2 = v2subv1.clone().dot(x2subx1.clone());
let d1to2 = x1.distanceTo(x2);
let d2to1 = x2.distanceTo(x1);
let res1 = dot1/(d1to2*d1to2);
let res2 = dot2/(d2to1*d2to1);
var t = x2subx1.clone().normalize();
let d = (20-d2to1)/2;
Pucks[i].pos.copy(Pucks[i].pos.clone().sub(t.clone().multiplyScalar(d)));
Pucks[j].pos.copy(Pucks[j].pos.clone().add(t.clone().multiplyScalar(d)));
Pucks[i].vel.copy(v1.clone().sub(x1subx2.clone().multiplyScalar(res1)));
Pucks[j].vel.copy(v2.clone().sub(x2subx1.clone().multiplyScalar(res2)));
}
}
}
//collision();
// box collision
for(var i = 0 ; i< 2 ; i++){
for(var j = 0 ; j< 5 ;j++){
let Rect = makeRect(Boxs[i]);
if(collisioncheck(Rect,Pucks[j].puck,10)){
console.log('collision');
if(check==1){
Boxs[i].normal.set(1,0,0);
var lo = Boxs[i].box.localToWorld(new THREE.Vector3(25,0,0));
var log = new THREE.Vector3(lo.x,0,0);
Boxs[i].point.copy(log);
}
else if (check==2){
Boxs[i].normal.set(-1,0,0);
var lo =Boxs[i].box.localToWorld(new THREE.Vector3(-25,0,0));
var log = new THREE.Vector3(lo.x,0,0);
Boxs[i].point.copy(log);
}
else if (check==3){
Boxs[i].normal.set(0,0,1);
var lo =Boxs[i].box.localToWorld(new THREE.Vector3(0,0,5));
var log = new THREE.Vector3(0,0,lo.z);
Boxs[i].point.copy(log);
}
else if(check==4){
Boxs[i].normal.set(0,0,-1);
var lo =Boxs[i].box.localToWorld(new THREE.Vector3(0,0,-5));
var log = new THREE.Vector3(0,0,lo.z);
Boxs[i].point.copy(log);
}
console.log(Boxs[i].point);
console.log(Boxs[i].normal);
if(turn== true) collisionSound.play();
var vN = Boxs[i].normal.clone().multiplyScalar(Pucks[j].vel.clone().dot(Boxs[i].normal));
var vT = Pucks[j].vel.clone().sub(vN);
Pucks[j].vel.copy(vT.clone().add(vN.clone().multiplyScalar(-cR)));
Pucks[j].pos.add(Boxs[i].normal.clone().multiplyScalar(10-(Boxs[i].normal.clone().dot(Pucks[j].pos.clone().sub(Boxs[i].point)))));
}
}
}
requestAnimationFrame ( animate );
renderer.render (scene, camera);
}
function objectCopy (src) {
return JSON.parse (JSON.stringify (src));
}
function makeRect(Box) {
let Rect = {};
Rect.max = Box.box.localToWorld ( new THREE.Vector3(25, 0, -5) );
Rect.min = Box.box.localToWorld ( new THREE.Vector3(-25, 0, 5) );
return Rect;
}
function collisioncheck(Box, C, Rad) {
const Rad2 = Rad * Rad;
let R;
R = objectCopy (Box);
R.max.x -= C.position.x; R.max.z -= C.position.z;
R.min.x -= C.position.x; R.min.z -= C.position.z;
if (R.max.x < 0){
check=1;
if (R.max.z < 0){
return ((R.max.x * R.max.x + R.max.z * R.max.z) < Rad2);
}
else if (R.min.z > 0){
return ((R.max.x * R.max.x + R.min.z * R.min.z) < Rad2);
}
else {
return(Math.abs(R.max.x) < Rad);
}
}
else if (R.min.x > 0){
check=2;
if (R.max.z < 0){
return ((R.min.x * R.min.x + R.max.z * R.max.z) < Rad2);
}
else if (R.min.z > 0){
return ((R.min.x * R.min.x + R.min.z * R.min.z) < Rad2);
}
else{
return (Math.abs(R.min.x) < Rad);
}
}
else{
if (R.max.z < 0){
check = 3;
return (Math.abs(R.min.z) < Rad);
}
else if (R.min.z > 0){
check = 4;
return (Math.abs(R.max.z) < Rad);
}
else
return(true);
}
}
</script>
</body>
</html>