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random_function.html
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random_function.html
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<html>
<head>
<title>Random generation</title>
<style type="text/css">
body
{
padding: 5px;
margin: 0;
}
canvas
{
background: gray;
display:block;
margin:0 auto;
}
#progress{
background:url("background.jpg");
}
</style>
</head>
<body>
<audio id="crash1" src="crash.mp3"></audio>
<audio id="finalcrash" src="finalcrash.mp3"></audio>
<canvas id="progress" width="500" height="40"></canvas>
<canvas id = "canvas" width = "500" height = "600"></canvas>
</body>
<script src="/socket.io/socket.io.js"></script>
<script type="text/javascript">
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
document.addEventListener("keydown", update);
document.addEventListener("keyup",upfun);
var enterPress=false;
var nitroPress=false;
var canvas1=document.getElementById("progress");
var c=canvas1.getContext("2d");
var lives=3;var flag=0;var once=0;
var lineY=0,endflag=1;
particle_no = 25;
var counter = 0;
var particles = [];
var crash1=document.getElementById("crash1");
var crashfinal=document.getElementById("finalcrash");
var score=0;
function drawscore()
{
c.beginPath();
c.font="25px serif";
c.fillStyle="#FFFFFF";
c.fillText("Score:",350,25);
c.fillText(score,420,25);
c.closePath();
}
function reset()
{
c.fillStyle = "hsla(60,100%,40%,1)";
c.fillRect(90, 5, 150, 30);
}
function progressbar()
{
this.widths=0;
this.hue = 0;
this.draw = function() {
c.fillStyle = 'hsla(' + this.hue + ', 100%, 40%, 1)';
c.fillRect(90, 5, this.widths, 30);
var grad = c.createLinearGradient(0, 0, 0, 130);
grad.addColorStop(0, "transparent");
grad.addColorStop(1, "rgba(0,0,0,0.5)");
c.fillStyle = grad;
c.fillRect(90, 5, this.widths, 30);
}
}
function particle() {
this.x = 90 + bar.widths;
this.y = 1;
this.vx = 0.8 + Math.random() * 1;
this.v = Math.random() * 5;
this.g = 1 + Math.random() * 3;
this.down = false;
this.draw = function() {
c.fillStyle = 'hsla(' + (bar.hue + 0.3) + ', 100%, 40%, 1)';
var size = Math.random() * 2;
c.fillRect(this.x, this.y, size, size);
}
}
bar = new progressbar();
function drawlives()
{
c.beginPath();
c.font="25px serif";
c.fillStyle="#00C1FF";
c.fillText("Life:",10,25);
c.closePath();
if(lives==2)
{
if(bar.widths<100)
{bar.draw();
if(counter<142){
bar.draw();
}
}
else
{
bar.widths-=2;
counter--;
bar.hue-=0.8;
bar.draw();
for (var i = 0; i < particle_no; i += 10) {
particles.push(new particle());
}
}
updatelifebar();
}
else if(lives==1)
{
if(bar.widths<50)
{bar.draw();
if(counter<71){
bar.draw();
}
}
else
{
bar.widths-=2;
counter--;
bar.hue-=0.8;
bar.draw();
for (var i = 0; i < particle_no; i += 10) {
particles.push(new particle());
}
}
updatelifebar();
}
else if(lives==3)
{
bar.draw();
}
}
function updatelifebar()
{
for (var i = 0; i < particles.length; i++) {
var p = particles[i];
p.x -= p.vx;
if (p.down == true) {
p.g += 0.1;
p.y += p.g;
} else {
if (p.g < 0) {
p.down = true;
p.g += 0.1;
p.y += p.g;
} else {
p.y -= p.g;
p.g -= 0.1;
}
}
p.draw();
}
}
function object (x,y,status,width,height,speed,oldObject) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.status = status;
this.speed = speed;
this.oldObject = oldObject;
}
var dy=2;
function whiteLines()
{
if(lineY<=600)
lineY=lineY+dy;
else
lineY=0;
var x;
for(x=0;x<5;x++)
drawWhiteLines(72.5,lineY+x*100,10,70);
for(x=1;x<=6;x++)
drawWhiteLines(72.5,lineY-(x*100),10,70);
for(x=0;x<5;x++)
drawWhiteLines(245.33333,lineY+x*100,10,70);
for(x=1;x<=6;x++)
drawWhiteLines(245.33333,lineY-(x*100),10,70);
for(x=0;x<5;x++)
drawWhiteLines(415.33333,lineY+x*100,10,70);
for(x=1;x<=6;x++)
drawWhiteLines(415.33333,lineY-(x*100),10,70);
}
function drawWhiteLines(x,y,width,height)
{
ctx.beginPath();
ctx.rect(x,y,width,height);
ctx.fillStyle="white";
ctx.fill();
}
function background()
{
ctx.beginPath();
ctx.rect(155,0,5,600);
ctx.fillStyle="yellow";
ctx.fill();
ctx.rect(162,0,5,600);
ctx.fill();
ctx.rect(325,0,5,600);
ctx.fill();
ctx.rect(332,0,5,600);
ctx.fill();
ctx.fillStyle = "green";
ctx.closePath();
ctx.fillStyle = "#00FF00";
whiteLines();
}
var obstacle = new object(40,0,true,80,80,5,true);
var car = new object(30,420,false,100,150,20,false);
var test = 4.567;
var imgTag = new Image();
imgTag.src = "car1.png";
imgTag.onload = gamePlay;
var barricade=new Image();
barricade.src="barricade.png";
var gameover=new Image();
gameover.src="gameover.png";
var nitro=new Image();
nitro.src="nitro.png";
var random = 0;
function obstacleGeneration(){
if(!obstacle.oldObject){
ctx.clearRect(obstacle.x,obstacle.y,obstacle.width,obstacle.height);
var random = Math.round(Math.random()*2);
flag=0;
obstacle.x = (30+170*random);
//y_coordinate = 0;
obstacle.status = true;
/*ctx.beginPath();
ctx.rect(obstacle.x,obstacle.y,obstacle.width,obstacle.height);//drawing the game space for the game
ctx.fillStyle = "#00FF00";
ctx.fill();
ctx.fillStyle = "#00FF00";
ctx.closePath();*/
ctx.drawImage(barricade,0,0,150,150,obstacle.x,obstacle.y,obstacle.width,obstacle.height);
obstacle.oldObject = true;
ctx.fillStyle = "#00FF00";
}
}
function drawObstacle(){
if(obstacle.status){
ctx.beginPath();
/*ctx.rect(obstacle.x,obstacle.y,obstacle.width,obstacle.height);//drawing the game space for the game
ctx.fillStyle = "#00FF00";
ctx.fill();
ctx.fillStyle = "green";
ctx.closePath();*/
ctx.drawImage(barricade,0,0,150,150,obstacle.x,obstacle.y,obstacle.width,obstacle.height);
}
else{
ctx.clearRect(obstacle.x,obstacle.y,obstacle.width,obstacle.height);
obstacleGeneration();
}
}
function obstacleMovement(y,speed){
return y + speed;
}
function drawCar()
{
ctx.drawImage(imgTag, car.x, car.y);
}
function drawNitro()
{
ctx.drawImage(nitro,car.x+15,car.y+145,70,45);
}
function detect(obstacleX,obstacleY,obstacleW,obstacleH){
if(car.y<=obstacleY+obstacleH){
if(flag==0&&((car.x>=obstacleX)&&(car.x<=obstacleX+obstacleW))||((car.x+car.width>=obstacleX)&&(car.x+car.width<=obstacleX+obstacleW))){
{lives--;flag=1; obstacle.y=601;crash1.play();
if(lives==0)
{car.status=true; //console.log(car.status);
} }
}
if(flag==0&&(obstacleX>=car.x)&&(obstacleX+obstacleW<=car.x+car.width)){
{ lives--;flag=1; obstacle.y=601;crash1.play();
if(lives==0)
{car.status=true;
}
}
}
}
}
function upfun(e)
{
if(e.keyCode==13)
enterPress=false;
}
function update(event)
{
if (event.keyCode == 37)
{
if((car.x-150>=0)&&(car.x<=canvas.width-imgTag.width))
car.x-=170;
}
if (event.keyCode == 39)
{
if((car.x>=0)&&(car.x+150<=canvas.width-imgTag.width))
car.x +=170;
}
if(event.keyCode==13)
enterPress=true;
if(event.keyCode==78)
nitroPress=true;
}
function changeLane(direction){
//for right turn, accel values are negative
direction = Number(direction.toFixed(1));
console.log(direction);
/*if(direction <= 0){
car.x = (canvas.width-car.x)*(Math.abs(direction)/7.5);
if(direction ==0){
car.x = (canvas.width/2 - car.width/2);
}
if(Math.abs(direction)>7.5){
car.x = canvas.width - car.x-car.width;
}
}
else{
car.x = (car.x)*(direction/7.5);
if(direction>7.5){
car.x = 0;
}
}*/
var offset = car.width;
if(direction<0){
offset = 0;
}
car.x = (canvas.width/15)*direction + canvas.width/2 - offset;
}
/* direction = Math.round(direction);
if(direction < 0){
car.x = (direction*canvas.width/2)/7.5;
if(Math.abs(direction)>7.5){
car.x = -(7.5*canvas.width/2)/7.5;
}
}
else{
car.x = (direction*canvas.width/2)/7.5;
if((direction)>7.5){
car.x = (7.5*canvas.width/2)/7.5;
}
}
test += 0.012;
console.log(car.x+" "+test);
}
*/
var nitropress=new Date();
var nitroend=new Date();
var flagtime=false;
var increase=0.01;
function gamePlay(){
c.clearRect(0,0,canvas1.width,canvas1.height);
score+=increase;
if(once==0)
{
counter=215;
bar.widths=150;
bar.hue =60;
reset();
once++;
}
drawscore();
drawlives();
if(!car.status){
ctx.clearRect(0,0,canvas.width,canvas.height);
background();
drawCar();
if(nitroPress)
{ dy=4;
increase=0.05;
drawNitro();
if(!flagtime)
{nitropress=Date.now();
flagtime++;
}
}
nitroend=Date.now();
if(Math.floor(((nitroend-nitropress)/1000)%60)>2)
{ nitroPress=false;increase=0.01;
dy=2;
ctx.clearRect(car.x+15,car.y+145,70,45);
flagtime=0;
}
if(obstacle.y>canvas.height){
obstacle.status = false;
obstacle.oldObject=false;
obstacle.y = 0;
}
obstacle.y = obstacleMovement(obstacle.y,obstacle.speed);
detect(obstacle.x,obstacle.y,obstacle.width,obstacle.height);
drawObstacle(obstacle.x,obstacle.y,obstacle.width,obstacle.height,obstacle.status);
}
else if(endflag)
{
finalcrash.play();
endflag=0;
ctx.drawImage(gameover,130,80,250,180);
ctx.beginPath();
ctx.rect(130,260,250,100);
ctx.fill();
increase=0;
ctx.font="bold 25px serif";
ctx.fillStyle="green";
ctx.fillText("Press enter to start",153,280);
ctx.fillStyle="black";
ctx.closePath();
}
requestAnimationFrame(gamePlay);
ctx.fillStyle="black";
if(enterPress==true)
document.location.reload();
}
gamePlay();
var socket = io();
socket.on('serverEvent', function(data){
//console.log("asd");
if(data>7.5){
data = 7.5;
}
else if(Math.abs(data)>7.5){
data = -7.5;
}
changeLane(Number(-data));
});
</script>
</html>