178 lines
4.8 KiB
HTML
178 lines
4.8 KiB
HTML
|
<!DOCTYPE html>
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
|
||
|
|
<style>
|
||
|
|
canvas {
|
||
|
|
border:1px solid #d3d3d3;
|
||
|
|
background-image: url("back2.png");
|
||
|
|
font-family: Impact, Charcoal, sans-serif;
|
||
|
|
align:center;
|
||
|
|
margin-top:100px;
|
||
|
|
margin-left:250px;
|
||
|
|
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body onload="startGame()">
|
||
|
|
<script>
|
||
|
|
var myGamePiece;
|
||
|
|
|
||
|
|
|
||
|
|
var myObstacles = [];
|
||
|
|
var myScore;
|
||
|
|
|
||
|
|
|
||
|
|
function startGame() {
|
||
|
|
myGamePiece = new component(60, 60, "flappybird.png", 100, 120, "image");
|
||
|
|
myGamePiece.gravity = 0.07;
|
||
|
|
myScore = new component("30px", "Impact", "white", 350, 40, "text");
|
||
|
|
myGameArea.start();
|
||
|
|
}
|
||
|
|
|
||
|
|
var myGameArea = {
|
||
|
|
canvas : document.createElement("canvas"),
|
||
|
|
start : function() {
|
||
|
|
this.canvas.width = 800;
|
||
|
|
this.canvas.height = 400;
|
||
|
|
this.canvas.id="demo";
|
||
|
|
this.context = this.canvas.getContext("2d");
|
||
|
|
document.body.insertBefore(this.canvas, document.body.childNodes[0]);
|
||
|
|
this.frameNo = 0;
|
||
|
|
this.interval = setInterval(updateGameArea, 20);
|
||
|
|
document.getElementById("demo").addEventListener("mousedown", mouseDown);
|
||
|
|
document.getElementById("demo").addEventListener("mouseup", mouseUp);
|
||
|
|
|
||
|
|
function mouseDown() {
|
||
|
|
accelerate(-0.2);
|
||
|
|
}
|
||
|
|
|
||
|
|
function mouseUp() {
|
||
|
|
accelerate(0.05);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
clear : function() {
|
||
|
|
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
|
||
|
|
},
|
||
|
|
stop : function() {
|
||
|
|
clearInterval(this.interval);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function component(width, height, color, x, y, type) {
|
||
|
|
this.type = type;
|
||
|
|
this.type = type;
|
||
|
|
if (type == "image") {
|
||
|
|
this.image = new Image();
|
||
|
|
this.image.src = color;
|
||
|
|
}
|
||
|
|
this.score = 0;
|
||
|
|
this.width = width;
|
||
|
|
this.height = height;
|
||
|
|
this.speedX = 0;
|
||
|
|
this.speedY = 0;
|
||
|
|
this.x = x;
|
||
|
|
this.y = y;
|
||
|
|
this.gravity = 0;
|
||
|
|
this.gravitySpeed = 0;
|
||
|
|
this.update = function() {
|
||
|
|
ctx = myGameArea.context;
|
||
|
|
if (this.type == "text") {
|
||
|
|
ctx.font = this.width + " " + this.height;
|
||
|
|
ctx.fillStyle = color;
|
||
|
|
ctx.fillText(this.text, this.x, this.y);
|
||
|
|
|
||
|
|
}
|
||
|
|
if (type == "image") {
|
||
|
|
ctx.drawImage(this.image,
|
||
|
|
this.x,
|
||
|
|
this.y,
|
||
|
|
this.width, this.height);}
|
||
|
|
|
||
|
|
else {
|
||
|
|
ctx.fillStyle = color;
|
||
|
|
ctx.fillRect(this.x, this.y, this.width, this.height);
|
||
|
|
//ctx.drawImage(myGamePiece,this.x,this.y,this.height,this.width);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.newPos = function() {
|
||
|
|
this.gravitySpeed += this.gravity;
|
||
|
|
this.x += this.speedX;
|
||
|
|
this.y += this.speedY + this.gravitySpeed;
|
||
|
|
this.hitBottom();
|
||
|
|
}
|
||
|
|
this.hitBottom = function() {
|
||
|
|
var rockbottom = myGameArea.canvas.height - this.height;
|
||
|
|
if (this.y > rockbottom) {
|
||
|
|
this.y = rockbottom;
|
||
|
|
this.gravitySpeed = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.crashWith = function(otherobj) {
|
||
|
|
var myleft = this.x;
|
||
|
|
var myright = this.x + (this.width);
|
||
|
|
var mytop = this.y;
|
||
|
|
var mybottom = this.y + (this.height);
|
||
|
|
var otherleft = otherobj.x;
|
||
|
|
var otherright = otherobj.x + (otherobj.width);
|
||
|
|
var othertop = otherobj.y;
|
||
|
|
var otherbottom = otherobj.y + (otherobj.height);
|
||
|
|
var crash = true;
|
||
|
|
if ((mybottom-20< othertop) || (mytop+20> otherbottom) || (myright-20 < otherleft) || (myleft +20> otherright)) {
|
||
|
|
crash = false;
|
||
|
|
}
|
||
|
|
return crash;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function updateGameArea() {
|
||
|
|
var x, height, gap, minHeight, maxHeight, minGap, maxGap;
|
||
|
|
for (i = 0; i < myObstacles.length; i += 1) {
|
||
|
|
if (myGamePiece.crashWith(myObstacles[i])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
myGameArea.clear();
|
||
|
|
myGameArea.frameNo += 1;
|
||
|
|
if (myGameArea.frameNo == 1 || everyinterval(130)) {
|
||
|
|
x = myGameArea.canvas.width;
|
||
|
|
minHeight = 20;
|
||
|
|
maxHeight = 200;
|
||
|
|
height = Math.floor(Math.random()*(maxHeight-minHeight+1)+minHeight);
|
||
|
|
minGap = 50;
|
||
|
|
maxGap = 200;
|
||
|
|
gap = Math.floor(Math.random()*(maxGap-minGap+1)+minGap);
|
||
|
|
// myObstacles.push(new component(10, height, "green", x, 0));
|
||
|
|
//myObstacles.push(new component(10, x - height - gap, "green", x, height + gap));
|
||
|
|
myObstacles.push(new component(50, height, "rotatedpipe.png", x, 0, "image"));
|
||
|
|
myObstacles.push(new component(50, x - height - gap, "pipe.png", x, height + gap,"image"));
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
for (i = 0; i < myObstacles.length; i += 1) {
|
||
|
|
myObstacles[i].x += -2;
|
||
|
|
myObstacles[i].update();
|
||
|
|
}
|
||
|
|
myScore.text="SCORE: " + myGameArea.frameNo;
|
||
|
|
myScore.update();
|
||
|
|
myGamePiece.newPos();
|
||
|
|
myGamePiece.update();
|
||
|
|
}
|
||
|
|
|
||
|
|
function everyinterval(n) {
|
||
|
|
if ((myGameArea.frameNo / n) % 1 == 0) {return true;}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
function accelerate(n) {
|
||
|
|
myGamePiece.gravity = n;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
</script>
|
||
|
|
<br>
|
||
|
|
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|