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RollBallver6.9.html
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RollBallver6.9.html
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<!DOCTYPE html>
<html>
<head>
<title>RollBall</title>
<script type="text/javascript" src="libs/glMatrix-0.9.5.min.js"></script>
<script type="text/javascript" src="libs/webgl-utils.js"></script>
<script id="shader-fs" type="x-shader/x-fragment">
precision mediump float;
varying vec2 vTextureCoord;
varying vec3 vLighWeighting;
uniform sampler2D uSampler;
void main(){
vec4 textureColor = texture2D(uSampler, vTextureCoord);
gl_FragColor = vec4(textureColor.rgb * vLighWeighting, textureColor.a);
}
</script>
<script id="shader-vs" type="x-shader/x-vertex">
attribute vec3 aVertexPosition;
attribute vec2 aTextureCoord;
attribute vec3 aVertexNormal;
uniform mat4 uMVMatrix;
uniform mat4 uPMatrix;
uniform mat3 uNMatrix;
uniform vec3 uAmbientColor;
uniform vec3 uLightingDirection;
uniform vec3 uDirectionalColor;
varying vec2 vTextureCoord;
varying vec3 vLighWeighting;
void main(){
gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);
vTextureCoord = aTextureCoord;
vec3 transformedNormal = uNMatrix * aVertexNormal;
float directionLighWeighting = max(dot(transformedNormal, uLightingDirection), 0.0);
vLighWeighting = uAmbientColor + uDirectionalColor * directionLighWeighting;
}
</script>
<script type="text/javascript">
var gl;
function initWebgl(canvas) {
canvas = document.getElementById("mycanvas");
try{
gl = canvas.getContext("experimental-webgl");
gl.viewportWidth = canvas.width;
gl.viewportHeight = canvas.height;
} catch (e) {}
canvas = document.getElementById("scoreboard");
scoreBoard = canvas.getContext("2d");
if (!gl) {
alert("Could not initialise Scoreboard, sorry :-(");
}
}
function getShader(id){
var shaderScript = document.getElementById(id);
if (!shaderScript) return null;
var myString = "";
var key = shaderScript.firstChild;
while (key){
if (key.nodeType == 3)
myString += key.textContent;
key = key.nextSibling;
}
var shader;
if (shaderScript.type == "x-shader/x-fragment")
shader = gl.createShader(gl.FRAGMENT_SHADER);
else if (shaderScript.type == "x-shader/x-vertex")
shader = gl.createShader(gl.VERTEX_SHADER);
else return null;
gl.shaderSource(shader, myString);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS))
return null;
return shader;
}
var shaderProgram;
function initShader() {
var fragmentShader = getShader("shader-fs");
var vertexShader = getShader("shader-vs");
shaderProgram = gl.createProgram();
gl.attachShader(shaderProgram, vertexShader);
gl.attachShader(shaderProgram, fragmentShader);
gl.linkProgram(shaderProgram);
gl.useProgram(shaderProgram);
shaderProgram.vertexPositionAttribute = gl.getAttribLocation(shaderProgram, "aVertexPosition");
gl.enableVertexAttribArray(shaderProgram.vertexPositionAttribute);
shaderProgram.textureCoordAttribute = gl.getAttribLocation(shaderProgram, "aTextureCoord");
gl.enableVertexAttribArray(shaderProgram.textureCoordAttribute);
shaderProgram.vertexNormalAttribute = gl.getAttribLocation(shaderProgram, "aVertexNormal");
gl.enableVertexAttribArray(shaderProgram.vertexNormalAttribute);
shaderProgram.pMatrixUniform = gl.getUniformLocation(shaderProgram, "uPMatrix");
shaderProgram.nMatrixUniform = gl.getUniformLocation(shaderProgram, "uNMatrix");
shaderProgram.samplerUniform = gl.getUniformLocation(shaderProgram, "uSampler");
shaderProgram.mvMatrixUniform = gl.getUniformLocation(shaderProgram, "uMVMatrix");
shaderProgram.uambientColor = gl.getUniformLocation(shaderProgram, "uAmbientColor");
shaderProgram.ulightingDirection = gl.getUniformLocation(shaderProgram, "uLightingDirection");
shaderProgram.udirectionalColor = gl.getUniformLocation(shaderProgram, "uDirectionalColor");
}
function loadedTexture(texture) {
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true);
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texture.image);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST);
gl.generateMipmap(gl.TEXTURE_2D);
gl.bindTexture(gl.TEXTURE_2D, null);
}
var textureBall;
var textureObstacle;
var textureGround;
function initTexture() {
textureBall = gl.createTexture();
textureBall.image = new Image();
textureBall.image.onload = function() {
loadedTexture(textureBall);
}
textureBall.image.src = "libs/Ball.png";
textureObstacle = gl.createTexture();
textureObstacle.image = new Image();
textureObstacle.image.onload = function(){
loadedTexture(textureObstacle);
}
textureObstacle.image.src = "libs/rrr.jpg";
textureGround = gl.createTexture();
textureGround.image = new Image();
textureGround.image.onload = function(){
loadedTexture(textureGround);
}
textureGround.image.src = "libs/Ground.jpg";
}
var mvMatrix = mat4.create();
var pMatrix = mat4.create();
var mvMatrixStack = [];
function mvPushMatrix() {
var copy = mat4.create();
mat4.set(mvMatrix, copy);
mvMatrixStack.push(copy);
}
function mvPopMatrix()
{
if (mvMatrixStack.length == 0) {
throw "Invalid popMatrix!";
}
mvMatrix = mvMatrixStack.pop();
}
function setMatrixUniforms()
{
gl.uniformMatrix4fv(shaderProgram.pMatrixUniform, false, pMatrix);
gl.uniformMatrix4fv(shaderProgram.mvMatrixUniform, false, mvMatrix);
var normalMatrix = mat3.create();
mat4.toInverseMat3(mvMatrix, normalMatrix);
mat3.transpose(normalMatrix);
gl.uniformMatrix3fv(shaderProgram.nMatrixUniform, false, normalMatrix);
}
function degToRad(degrees)
{
return degrees * Math.PI / 180;
}
var GroundNormalBuffer;
var GroundVertexBuffer;
var GroundTextureBuffer;
function initBackground()
{
var vertices = new Float32Array([
// Front face
-1.0, 1.0, 0.0,
1.0, 1.0, 0.0,
1.0, -1.0, 0.0,
-1.0, -1.0, 0.0,
]);
GroundVertexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, GroundVertexBuffer);
gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
GroundVertexBuffer.itemSize = 3;
GroundVertexBuffer.numItems = 4;
var vertexNormal = new Float32Array([
// Front face
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0
]);
GroundNormalBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, GroundNormalBuffer);
gl.bufferData(gl.ARRAY_BUFFER, vertexNormal, gl.STATIC_DRAW);
GroundNormalBuffer.itemSize = 3;
GroundNormalBuffer.numItems = 4;
var textureCoods = new Float32Array([
0.0, 1.0,
1.0, 1.0,
1.0, 0.0,
0.0, 0.0
]);
GroundTextureBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, GroundTextureBuffer);
gl.bufferData(gl.ARRAY_BUFFER, textureCoods, gl.STATIC_DRAW);
GroundTextureBuffer.itemSize = 2;
GroundTextureBuffer.numItems = 4;
}
var CubeIndexBuffer;
var CubeNormalBuffer;
var CubeVertexBuffer;
var CubeTextureBuffer;
function initCube()
{
var vertices = new Float32Array([
// Front face
-1.0, -1.0, 1.0,
1.0, -1.0, 1.0,
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
// Back face
-1.0, -1.0, -1.0,
-1.0, 1.0, -1.0,
1.0, 1.0, -1.0,
1.0, -1.0, -1.0,
// Top face
-1.0, 1.0, -1.0,
-1.0, 1.0, 1.0,
1.0, 1.0, 1.0,
1.0, 1.0, -1.0,
// Bottom face
-1.0, -1.0, -1.0,
1.0, -1.0, -1.0,
1.0, -1.0, 1.0,
-1.0, -1.0, 1.0,
// Right face
1.0, -1.0, -1.0,
1.0, 1.0, -1.0,
1.0, 1.0, 1.0,
1.0, -1.0, 1.0,
// Left face
-1.0, -1.0, -1.0,
-1.0, -1.0, 1.0,
-1.0, 1.0, 1.0,
-1.0, 1.0, -1.0
]);
CubeVertexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, CubeVertexBuffer);
gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
CubeVertexBuffer.itemSize = 3;
CubeVertexBuffer.numItems = 24;
var vertexNormal = new Float32Array([
// Front face
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
// Back face
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
// Top face
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
// Bottom face
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
// Right face
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
// Left face
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0
]);
CubeNormalBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, CubeNormalBuffer);
gl.bufferData(gl.ARRAY_BUFFER, vertexNormal, gl.STATIC_DRAW);
CubeNormalBuffer.itemSize = 3;
CubeNormalBuffer.numItems = 24;
var textureCoods = new Float32Array([
// Front face
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
// Back face
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
// Top face
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
// Bottom face
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
// Right face
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
// Left face
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0
]);
CubeTextureBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, CubeTextureBuffer);
gl.bufferData(gl.ARRAY_BUFFER, textureCoods, gl.STATIC_DRAW);
CubeTextureBuffer.itemSize = 2;
CubeTextureBuffer.numItems = 24;
var cubeVertexIndices = new Uint16Array([
0, 1, 2, 0, 2, 3,
4, 5, 6, 4, 6, 7,
8, 9, 10, 8, 10, 11,
12, 13, 14, 12, 14, 15,
16, 17, 18, 16, 18, 19,
20, 21, 22, 20, 22, 23
]);
CubeIndexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, CubeIndexBuffer);
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, cubeVertexIndices, gl.STATIC_DRAW);
CubeIndexBuffer.itemSize = 1;
CubeIndexBuffer.numItems = 36;
}
var BallVertexBuffer;
var BallNormalBuffer;
var BallTextureBuffer;
var BallIndexBuffer;
function initSphere() {
var latitudeBands = 30;
var longitudeBands = 30;
var radius = 1;
var vertexPositionData = [];
var normalData = [];
var textureCoordData = [];
for (var i=0; i <= latitudeBands; i++) {
var theta = i * Math.PI / latitudeBands;
var sinTheta = Math.sin(theta);
var cosTheta = Math.cos(theta);
for (var j=0; j <= longitudeBands; j++) {
var phi = j * 2 * Math.PI / longitudeBands;
var sinPhi = Math.sin(phi);
var cosPhi = Math.cos(phi);
var x = cosPhi * sinTheta;
var y = cosTheta;
var z = sinPhi * sinTheta;
var u = 1 - (j / longitudeBands);
var v = 1 - (i / latitudeBands);
normalData.push(x);
normalData.push(y);
normalData.push(z);
textureCoordData.push(u);
textureCoordData.push(v);
vertexPositionData.push(radius * x);
vertexPositionData.push(radius * y);
vertexPositionData.push(radius * z);
}
}
BallNormalBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, BallNormalBuffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(normalData), gl.STATIC_DRAW);
BallNormalBuffer.itemSize = 3;
BallNormalBuffer.numItems = normalData.length / 3;
BallTextureBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, BallTextureBuffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(textureCoordData), gl.STATIC_DRAW);
BallTextureBuffer.itemSize = 2;
BallTextureBuffer.numItems = textureCoordData.length / 2;
BallVertexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, BallVertexBuffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertexPositionData), gl.STATIC_DRAW);
BallVertexBuffer.itemSize = 3;
BallVertexBuffer.numItems = vertexPositionData.length / 3;
var indexData = [];
for (var i=0; i < latitudeBands; i++) {
for (var j=0; j < longitudeBands; j++) {
var first = (i * (longitudeBands + 1)) + j;
var second = first + longitudeBands + 1;
indexData.push(first);
indexData.push(second);
indexData.push(first + 1);
indexData.push(second);
indexData.push(second + 1);
indexData.push(first + 1);
}
}
BallIndexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, BallIndexBuffer);
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indexData), gl.STATIC_DRAW);
BallIndexBuffer.itemSize = 1;
BallIndexBuffer.numItems = indexData.length;
}
function lighting(){
var lightingDirection = [1,-0.75,0];
var adjustedLD = vec3.create();
vec3.normalize(lightingDirection, adjustedLD);
vec3.scale(adjustedLD, -1);
gl.uniform3fv(shaderProgram.ulightingDirection, adjustedLD);
gl.uniform3f(shaderProgram.uambientColor, 0.5, 0.5, 0.5);
gl.uniform3f(shaderProgram.udirectionalColor, 0.15,0.15,0.15);
}
var eyeX = 0, eyeY = -3., eyeZ = 2;
var atX = 0, atY = 0, atZ = 0.05;
function drawGround(){
mvPushMatrix();
gl.bindBuffer(gl.ARRAY_BUFFER, GroundVertexBuffer);
gl.vertexAttribPointer(shaderProgram.vertexPositionAttribute, GroundVertexBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, GroundNormalBuffer);
gl.vertexAttribPointer(shaderProgram.vertexNormalAttribute, GroundNormalBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, GroundTextureBuffer);
gl.vertexAttribPointer(shaderProgram.textureCoordAttribute, GroundTextureBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, textureGround);
gl.uniform1i(shaderProgram.samplerUniform, 0);
setMatrixUniforms();
gl.drawArrays(gl.TRIANGLE_FAN, 0, 4);
mvPopMatrix();
}
var Rx = 0, Ry = 0, Rz = 0;
var angBall = 0;
function ball(x, y)
{
this.x = x;
this.y = y;
}
ball.prototype.draw = function()
{
mvPushMatrix()
mat4.translate(mvMatrix, [this.x, this.y, 0.05]);
mat4.scale(mvMatrix, [0.05, 0.05, 0.05]);
mat4.rotate(mvMatrix, degToRad(angBall), [Rx, Ry, Rz]);
mat4.rotate(mvMatrix, degToRad(angBall), [Rx, Ry, Rz]);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, textureBall);
gl.uniform1i(shaderProgram.samplerUniform, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, BallVertexBuffer);
gl.vertexAttribPointer(shaderProgram.vertexPositionAttribute, BallVertexBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, BallTextureBuffer);
gl.vertexAttribPointer(shaderProgram.textureCoordAttribute, BallTextureBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, BallNormalBuffer);
gl.vertexAttribPointer(shaderProgram.vertexNormalAttribute, BallNormalBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, BallIndexBuffer);
setMatrixUniforms();
gl.drawElements(gl.TRIANGLES, BallIndexBuffer.numItems, gl.UNSIGNED_SHORT, 0);
mvPopMatrix();
}
function cube(x, y)
{
this.x = x;
this.y = y;
this.z = 1.5*0.05;
this.isAlive = false;
this.score = 1;
}
var Score = 0;
var currentAngle = 0;
cube.prototype.draw = function()
{
mvPushMatrix();
mat4.translate(mvMatrix, [this.x, this.y, this.z]);
mat4.scale(mvMatrix, [0.05, 0.05, 0.05]);
mat4.rotate(mvMatrix, degToRad(currentAngle), [0, 0, 1]);
mat4.rotate(mvMatrix, degToRad(currentAngle), [0, 1, 0]);
mat4.rotate(mvMatrix, degToRad(currentAngle), [1, 0, 0]);
setMatrixUniforms();
gl.drawElements(gl.TRIANGLES, CubeIndexBuffer.numItems, gl.UNSIGNED_SHORT, 0);
mvPopMatrix();
}
var Obstacle = [];
var Ball = new ball(0, 0);
function initArrayCube(R, angle)
{
var x, y;
Obstacle.push(new cube(0.8, 0));
Obstacle.push(new cube(-0.8, 0));
Obstacle.push(new cube(0, -0.8));
Obstacle.push(new cube(0, 0.8));
for (var i = 30; i < 90; i+= angle)
{
x = Math.cos(degToRad(i))*R;
y = Math.sin(degToRad(i))*R;
Obstacle.push(new cube(x, y));
Obstacle.push(new cube(-x, y));
Obstacle.push(new cube(-x, -y));
Obstacle.push(new cube(x, -y));
}
return;
}
function drawObstacles()
{
gl.bindBuffer(gl.ARRAY_BUFFER, CubeVertexBuffer);
gl.vertexAttribPointer(shaderProgram.vertexPositionAttribute, CubeVertexBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, CubeNormalBuffer);
gl.vertexAttribPointer(shaderProgram.vertexNormalAttribute, CubeNormalBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ARRAY_BUFFER, CubeTextureBuffer);
gl.vertexAttribPointer(shaderProgram.textureCoordAttribute, CubeTextureBuffer.itemSize, gl.FLOAT, false, 0, 0);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, CubeIndexBuffer);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, textureObstacle);
gl.uniform1i(shaderProgram.samplerUniform, 0);
for (var i in Obstacle) {
if (Obstacle[i].isAlive != -1) {
Obstacle[i].draw();
}
else if (Obstacle[i].score == 1 ) {
var crash = document.getElementById("ting");
crash.load();
crash.play();
Score += 100;
Obstacle[i].score = -1;
}
}
}
function initBuffer()
{
initSphere();
initCube();
initBackground();
initArrayCube(0.8, 30);
}
var currentlyPressedKeys = [];
var distCamtoBall = 2;
var distCamtoGround = 1.5;
var speed = 0.02;
function handleKeyDown(event)
{
currentlyPressedKeys[event.keyCode] = true;
}
function handleKeyUp(event)
{
currentlyPressedKeys[event.keyCode] = false;
}
function isObstacle(x, y)
{
for (var i in Obstacle) {
if ((Math.abs(Obstacle[i].x - x) <= 0.1) && (Math.abs(Obstacle[i].y - y) <= 0.1)) {
Obstacle[i].isAlive = -1;
return true;
}
}
return false;
}
function isB(x)
{
if (x >= 1 || x <= -1)
return false;
return true;
}
function drawScene()
{
gl.viewport(0, 0, gl.viewportWidth, gl.viewportHeight);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
gl.enable(gl.DEPTH_TEST);
mat4.identity(pMatrix);
mat4.perspective(30, gl.viewportWidth/gl.viewportHeight, 1, 100, pMatrix);
mat4.identity(mvMatrix);
mat4.lookAt([eyeX, eyeY, eyeZ], [atX, atY, atZ], [0, 0, 1], mvMatrix);
lighting();
drawGround();
Ball.draw();
drawObstacles();
drawScoreBoard();
}
function handleKeys() //Move
{
//Right and Up
if (currentlyPressedKeys[39] && currentlyPressedKeys[38]) {
if (isB(Ball.x + speed)) {
Ball.x += speed;
isObstacle(Ball.x, Ball.y);
}
if (isB(Ball.y + speed)) {
Ball.y += speed;
isObstacle(Ball.x, Ball.y);
}
angBall += 5*(speed/0.02);
Rx = -1;
Ry = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Right and Down
if (currentlyPressedKeys[39] && currentlyPressedKeys[40]) {
if (isB(Ball.x + speed)) {
Ball.x += speed;
isObstacle(Ball.x, Ball.y);
}
if (isB(Ball.y - speed)) {
Ball.y -= speed;
isObstacle(Ball.x, Ball.y);
}
angBall -= 5*(speed/0.02);
Rx = -1;
Ry = -1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Left and Up
if (currentlyPressedKeys[37] && currentlyPressedKeys[38]) {
if (isB(Ball.x - speed)) {
Ball.x -= speed;
isObstacle(Ball.x, Ball.y);
}
if (isB(Ball.y + speed)) {
Ball.y += speed;
isObstacle(Ball.x, Ball.y);
}
angBall += 5*(speed/0.02);
Rx = -1;
Ry = -1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Left and Down
if (currentlyPressedKeys[37] && currentlyPressedKeys[40]) {
if (isB(Ball.x - speed)) {
Ball.x -= speed;
isObstacle(Ball.x, Ball.y);
}
if (isB(Ball.y - speed)) {
Ball.y -= speed;
isObstacle(Ball.x, Ball.y);
}
angBall -= 5*(speed/0.02);
Rx = -1;
Ry = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Right
if(currentlyPressedKeys[39]) {
if (isB(Ball.x + speed)) {
Ball.x += speed;
isObstacle(Ball.x, Ball.y);
}
angBall += 5*(speed/0.02);
Rx = 0;
Ry = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Left
if(currentlyPressedKeys[37]) {
if (isB(Ball.x - speed)) {
Ball.x -= speed;
isObstacle(Ball.x, Ball.y);
}
angBall -= 5*(speed/0.02);
Rx = 0;
Ry = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Up
if(currentlyPressedKeys[38]) {
if (isB(Ball.y + speed)) {
Ball.y += speed;
isObstacle(Ball.x, Ball.y);
}
angBall -= 5*(speed/0.02);
Ry = 0;
Rx = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
} else
//Down
if(currentlyPressedKeys[40]) {
if (isB(Ball.y - speed)) {
Ball.y -= speed;
isObstacle(Ball.x, Ball.y);
}
angBall += 5*(speed/0.02);
Ry = 0;
Rx = 1;
atX = Ball.x;
atY = Ball.y;
eyeY = atY - distCamtoBall;
eyeX = atX;
eyeZ = atZ + distCamtoGround;
}
}
var g_last = Date.now();
var ANGLE_STEP = 30;
function animate(angle)
{
var now = Date.now();
var elapsed = now - g_last;
g_last = now;
var newAngle = angle + (ANGLE_STEP*elapsed)/1000.0;
return newAngle %= 360;
}
function tick()
{
currentAngle = animate(currentAngle);
drawScene();
requestAnimationFrame(tick);
handleKeys();
}
var scoreBoard;
var canvas;
function webGLStart() {
initWebgl(canvas);
initShader();
initBuffer();
initTexture();
gl.clearColor(0.5, 0.5, 0.5, 1.0);
gl.enable(gl.DEPTH_TEST);
document.onkeydown = handleKeyDown;
document.onkeyup = handleKeyUp;
tick();
}
function drawScoreBoard()
{
scoreBoard.clearRect(0, 0, gl.viewportWidth, gl.viewportHeight);
scoreBoard.font = '35px Times New Roman';
scoreBoard.fillStyle = 'rgba(0, 245, 255, 1)';
scoreBoard.fillText('Your Score: ' + Score, 500, 60);
scoreBoard.font = '17px Times New Roman';
scoreBoard.fillStyle = 'rgba(255,255 , 255, 1)';
scoreBoard.fillText('Use the arrow key to move the ball', 20, 590);
if(WinGame())
{
var str = document.getElementById("start");
str.pause();
var end = document.getElementById("win");
end.play();
scoreBoard.clearRect(0, 0, gl.viewportWidth, gl.viewportHeight);
scoreBoard.font = '45px Times New Roman';
scoreBoard.fillStyle = 'rgba(0, 255 , 0, 1)';
scoreBoard.fillText('Congratulation on you!!!', 400, 250);
scoreBoard.fillText('<3 You win <3', 470, 300);
scoreBoard.font = '30px Times New Roman';
scoreBoard.fillStyle = 'rgba(255, 255, 0, 1)';
scoreBoard.fillText('New Highest Score: ' + Score, 460 , 340);
setTimeout(function(){location.reload();}, 7500);
}
}
function WinGame() {
for (var i in Obstacle)
if (Obstacle[i].isAlive != -1)
return false;
return true;
}
</script>
</head>
<body onload="webGLStart();">
<br>
<canvas id="mycanvas" style="border: none;" width="1200px" height="600px"></canvas>
<canvas id="scoreboard" width="1200" height="600" style="position: absolute;left:0">
</canvas>
</br>
<audio id = "start" autoplay loop>
<source src="libs/background.mp3" type="audio/mp3" />
Your browser does not support the <audio> element.
</audio>
<audio id = "ting"> <source src="libs/ting.mp3" type="audio/mp3" /> </audio>
<audio id = "win"> <source src="libs/win.mp3" type="audio/mp3" /> </audio>
</body>
</html>