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JumpGameV1.1.0.html
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JumpGameV1.1.0.html
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<!DOCTYPE html>
<html>
<head>
<style>
canvas {
border: 3px solid #000;
background: url('data:image/gif;base64,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');
width: 100%;
aspect-ratio: 1 / 1;
overflow: hidden;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
const d = document.getElementById("canvas");
const c = d.getContext("2d");
class Score {
constructor() {
this.score = 0;
this.position = 20;
}
get() {
return this.score;
}
set(x) {
if (x > this.score){
this.score = x;
}
}
display(scale) {
c.fillText(
`Score: ${this.score}`,
this.position * scale,
this.position * scale
);
}
}
class Platform {
constructor(x, y) {
this.x = x;
this.y = y;
}
display(scale, playerHeight) {
c.fillRect(
this.x * scale,
(this.y + playerHeight) * scale,
w.platformWidth * scale,
w.platformHeight * scale
);
}
}
class Player {
constructor(maxX, maxY, lowestPlatform) {
this.x = maxX / 2;
this.y = maxY / 2;
this.relativeX
this.size = maxX / 30; // may have issues when size converting
this.middle = this.size / 2;
this.height = 0;
this.dy = 8;
this.heightToPlatY = maxY / 2 - lowestPlatform;
}
display(scale) {
const scaledSize = this.size * scale;
c.fillRect(
this.x - (scaledSize / 2),
(this.y - this.size) * scale,
scaledSize,
scaledSize
);
}
setPosition(x) {
this.x = x;
this.relativeX = x / scaleValue;
}
isPlayerOnPlatformY(platformDif) {
return (this.height + this.heightToPlatY) % platformDif === 0; // returns bool
}
onWhichPlatformY(platformDif) {
return (this.height + this.heightToPlatY) / platformDif; // returns index
}
isPlayerOnPlatformX(platform) {
return (this.relativeX + this.middle >= platform.x // is player within left side
&& this.relativeX - this.middle <= platform.x + w.platformWidth); // is player within right side
}
isPlayerOnPlatform(platformDif, platforms) {
return this.isPlayerOnPlatformX(platforms[this.onWhichPlatformY(platformDif)]);
}
jump(platformDif, platforms) {
if ((this.isPlayerOnPlatformY(platformDif) && this.isPlayerOnPlatform(platformDif, platforms))
|| this.height <= 0) {
this.dy = 9;
this.height += 10;
} else if (this.dy > 0) {
this.height += this.dy;
this.dy--;
}
}
gravity(platformDif, platforms) {
if((this.isPlayerOnPlatformY(platformDif) && !this.isPlayerOnPlatform(platformDif, platforms))
|| (this.height > 0 && !this.isPlayerOnPlatformY(platformDif))) {
this.height--;
}
}
}
class StartLine {
constructor(maxX, maxY) {
this.y = maxY / 2;
this.width = maxX;
this.height = 2;
}
display(scale, playerHeight) {
c.fillRect(
0,
(this.y + playerHeight) * scale,
this.width * scale,
this.height * scale
);
}
}
class World {
constructor() {
this.maxX = 300;
this.maxY = 300;
this.platformQuantity = 10;
this.platformDif = this.maxY / this.platformQuantity;
this.platforms = [];
this.addPlatform(this.maxY - this.maxY / this.platformQuantity / 2); // lowest platform
this.lowestPlatform = this.maxY - this.platforms[0].y;
this.platformWidth = 20;
this.platformHeight = 2;
this.score = new Score();
this.startLine = new StartLine(this.maxX, this.maxY);
this.player = new Player(this.maxX, this.maxY, this.lowestPlatform);
while (this.getLastPlatform().y > 0) {
this.addPlatform(this.getLastPlatform().y - this.platformDif);
}
}
getLastPlatform() {
return this.platforms[this.platforms.length - 1];
}
addPlatform(y) {
this.platforms.push(
new Platform(
Math.floor(Math.random() * (this.maxX - this.platformWidth)),
y
)
);
}
display(scale) {
this.player.display(scale);
this.score.display(scale);
for (const platform of this.platforms) {
platform.display(scale, this.player.height);
}
if (this.player.height <= this.maxY / 2) {
this.startLine.display(scale, this.player.height);
}
}
}
const w = new World();
const scaleValue = d.getBoundingClientRect().width / w.maxX;
function game() {setTimeout(() => {
// clears the screen
c.clearRect(
0,
0,
d.clientWidth,
d.clientHeight
);
// generate more terrain
if (w.getLastPlatform().y + w.player.height >= w.platformDif) {
w.addPlatform(w.getLastPlatform().y - w.platformDif);
}
w.score.set(w.player.height);
w.player.gravity(w.platformDif, w.platforms);
w.display(scaleValue);
requestAnimationFrame(game);
}, 1)}
function main() {
// sets canvas width and height
d.width = d.clientWidth;
d.height = d.clientHeight;
c.font = `${10 * scaleValue}px Arial`;
canvas.addEventListener(
'pointermove',
e => w.player.setPosition(e.offsetX)
);
document.addEventListener(
'keydown',
e => {
if (e.key === ' ') w.player.jump(w.platformDif, w.platforms);
}
);
game();
}
main();
</script>
</body>
</html>