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walls.html
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walls.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Gamedev Canvas Workshop</title>
<style>
* {
padding: 0;
margin: 0;
}
canvas {
background: #eee;
display: block;
margin: 0 auto;
}
</style>
</head>
<body>
<canvas id="myCanvas" width="500" height="350"></canvas>
<script>
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
var speed = 10;
var gameSpeed = 1;
var me = {
x: canvas.width / 2 - 5,
y: canvas.height / 2 - 5,
width: 10,
height: 10
}
var bullets = [];
var wallLength = 200;
var walls = {
'left': {
x: 10,
y: canvas.height / 2 - wallLength / 2,
width: 10,
height: wallLength,
'pos': 'left'
},
'right': {
x: canvas.width - 20,
y: canvas.height / 2 - wallLength / 2,
width: 10,
height: wallLength,
'pos': 'right'
},
'top': {
x: canvas.width / 2 - wallLength,
y: 10,
width: wallLength * 2,
height: 10,
'pos': 'top'
},
'bottom': {
x: canvas.width / 2 - wallLength,
y: canvas.height - 20,
width: wallLength * 2,
height: 10,
'pos': 'bottom'
},
};
var gravity = 0.2;
var bounce = 4;
var distance = 70;
var dir = '';
document.onkeyup = function (e) {
if (!e) {
e = window.e;
}
var code = e.keyCode;
if (e.charCode && codee == 0) {
code = e.charCode;
}
switch (code) {
case 37://left
if (dir != 'left')
dir = 'left';
bullets.push({
x: me.x,
y: me.y,
width: 10,
height: 10,
dir: dir
});
break;
case 40:
if (dir != 'down')
dir = 'down';
bullets.push({
x: me.x,
y: me.y,
width: 10,
height: 10,
dir: dir
});
break;
case 39:
if (dir != 'right')
dir = 'right';
bullets.push({
x: me.x,
y: me.y,
width: 10,
height: 10,
dir: dir
});
break;
case 38:
if (dir != 'up')
dir = 'up';
bullets.push({
x: me.x,
y: me.y,
width: 10,
height: 10,
dir: dir
});
break;
}
}
var wallSpeed = 0.2;
var walletBackward = 20;
var score = 0;
function makeWalls() {
for (var index in walls) {
var wall = walls[index];
context.beginPath();
context.rect(wall.x, wall.y, wall.width, wall.height);
context.fillStyle = "blue";
context.fill();
context.closePath();
if (wall.pos == 'left') {
wall.x += wallSpeed;
if ((wall.x + wall.width) >= me.x) {
loose();
}
}
if (wall.pos == 'right') {
wall.x -= wallSpeed;
if ((wall.x + wall.width) <= me.x) {
loose();
}
}
if (wall.pos == 'top') {
wall.y += wallSpeed;
if ((wall.y + wall.height) >= me.y) {
loose();
}
}
if (wall.pos == 'bottom') {
wall.y -= wallSpeed;
if ((wall.y + wall.height) <= me.y) {
loose();
}
}
// console.log(walls[wall]);
}
}
function loose() {
alert('You fucked! score : ' + score);
}
var collid = false;
function makeBullet() {
for (bullet of bullets) {
context.beginPath();
context.rect(bullet.x, bullet.y, bullet.width, bullet.height);
context.fillStyle = "red";
context.fill();
context.closePath();
if (bullet.dir == 'left') {
bullet.x -= 10;
}
if (bullet.dir == 'right') {
bullet.x += 10;
}
if (bullet.dir == 'up') {
bullet.y -= 10;
}
if (bullet.dir == 'down') {
bullet.y += 10;
}
if (bullet.x >= canvas.width || bullet.x <= 0 || bullet.y >= canvas.height || bullet.y <= 0) {
bullets.splice(bullets.indexOf(bullet), 1);
}
if (bullet.dir == 'right') {
if (bullet.x >= walls['right'].x) {
walls['right'].x = walls['right'].x + walletBackward;
collid = true;
}
}
if (bullet.dir == 'up') {
if (bullet.y <= walls['top'].y) {
walls['top'].y = walls['top'].y - walletBackward;
collid = true;
}
}
if (bullet.dir == 'down') {
if (bullet.y >= walls['bottom'].y) {
walls['bottom'].y = walls['bottom'].y + walletBackward;
collid = true;
}
}
if (bullet.dir == 'left') {
if (bullet.x <= walls['left'].x) {
walls['left'].x = walls['left'].x - walletBackward;
collid = true;
}
}
if (collid) {
bullets.splice(bullets.indexOf(bullet), 1);
collid = false;
score++;
}
}
}
function removeBullet(index) {
bullets.splice(index, 1);
}
function makeMe() {
context.beginPath();
context.rect(me.x, me.y, me.width, me.height);
context.fillStyle = "green";
context.fill();
context.closePath();
}
function rnd(min, max) {
var r = Math.round(Math.random() * (max - min) + min);
return (r - r % speed);
}
var wallPoses = ['left', 'right', 'top', 'bottom'];
var frame = 0;
(function loop() {
requestAnimationFrame(function () {
context.clearRect(0, 0, canvas.width, canvas.height);
makeMe();
makeBullet();
makeWalls();
if (score % 50 == 0) {
walletBackward -= 1;
wallSpeed += 0.1;
score += 1;
console.log(score);
console.log(wallSpeed);
console.log(walletBackward);
}
if (frame % gameSpeed == 0) {
frame++;
}
loop();
})
})();
</script>
</body>
</html>