Mario Game HTML Code: Create Your Own Mario Game with JavaScript
<!DOCTYPE html>
<html>
<head>
<title>Mario Game</title>
</head>
<body>
<canvas id='game' width='640' height='480'></canvas>
<script>
// Create the canvas
var canvas = document.getElementById('game');
var ctx = canvas.getContext('2d');
<pre><code> // Background image
var bgReady = false;
var bgImage = new Image();
bgImage.onload = function () {
bgReady = true;
};
bgImage.src = 'images/background.png';
// Hero image
var heroReady = false;
var heroImage = new Image();
heroImage.onload = function () {
heroReady = true;
};
heroImage.src = 'images/hero.png';
// Monster image
var monsterReady = false;
var monsterImage = new Image();
monsterImage.onload = function () {
monsterReady = true;
};
monsterImage.src = 'images/monster.png';
// Game objects
var hero = {
speed: 256 // movement in pixels per second
};
var monster = {};
var monstersCaught = 0;
// Handle keyboard controls
var keysDown = {};
addEventListener('keydown', function (e) {
keysDown[e.keyCode] = true;
}, false);
addEventListener('keyup', function (e) {
delete keysDown[e.keyCode];
}, false);
// Reset the game when the player catches a monster
var reset = function () {
hero.x = canvas.width / 2;
hero.y = canvas.height / 2;
// Throw the monster somewhere on the screen randomly
monster.x = 32 + (Math.random() * (canvas.width - 64));
monster.y = 32 + (Math.random() * (canvas.height - 64));
};
// Update game objects
var update = function (modifier) {
if (38 in keysDown) { // Player holding up
hero.y -= hero.speed * modifier;
}
if (40 in keysDown) { // Player holding down
hero.y += hero.speed * modifier;
}
if (37 in keysDown) { // Player holding left
hero.x -= hero.speed * modifier;
}
if (39 in keysDown) { // Player holding right
hero.x += hero.speed * modifier;
}
// Are they touching?
if (
hero.x <= (monster.x + 32)
&& monster.x <= (hero.x + 32)
&& hero.y <= (monster.y + 32)
&& monster.y <= (hero.y + 32)
) {
++monstersCaught;
reset();
}
};
// Draw everything
var render = function () {
if (bgReady) {
ctx.drawImage(bgImage, 0, 0);
}
if (heroReady) {
ctx.drawImage(heroImage, hero.x, hero.y);
}
if (monsterReady) {
ctx.drawImage(monsterImage, monster.x, monster.y);
}
// Score
ctx.fillStyle = 'rgb(250, 250, 250)';
ctx.font = '24px Helvetica';
ctx.textAlign = 'left';
ctx.textBaseline = 'top';
ctx.fillText('Goblins caught: ' + monstersCaught, 32, 32);
};
// The main game loop
var main = function () {
var now = Date.now();
var delta = now - then;
update(delta / 1000);
render();
then = now;
// Request to do this again ASAP
requestAnimationFrame(main);
};
// Cross-browser support for requestAnimationFrame
var w = window;
requestAnimationFrame = w.requestAnimationFrame || w.webkitRequestAnimationFrame || w.msRequestAnimationFrame || w.mozRequestAnimationFrame;
// Let's play this game!
var then = Date.now();
reset();
main();
</script>
</code></pre>
</body>
</html>
原文地址: https://www.cveoy.top/t/topic/lf35 著作权归作者所有。请勿转载和采集!