HTML5跑动的小人

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引入JS
- 3.0.0 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.3 2.0.2 2.0.1 2.0.0 1.12.0 1.11.3 1.11.2 1.11.1 1.11.0 1.10.2 1.10.1 1.10.0 1.9.1 1.9.0 1.8.3 1.8.2 1.8.1 1.8.0 1.7.2 1.7.1 1.7 1.6.4 1.6.2 1.6.1 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0
- 1.7.3 1.7.2 1.7.1.0 1.7.0.0
- 2.0.0-beta.0 2.0.0-alpha.55 1.5.0-rc.0 1.4.8 1.4.0 1.3.20 1.2.29 1.1.5 1.0.8
- 1.8.3 1.7.0 1.6.0 1.5.2 1.4.4 1.3.3 1.2.4 1.1.7
- 1.10.4 1.9.7 1.8.10 1.7.8 1.6.3 1.5.4 1.4.6 1.3.3
- core1.6.0 core-compat1.6.0 core1.5.2 core-compat1.5.2 core-full-compat-yc1.4.5 core-full-compat1.4.5 core-full-nocompat-yc1.4.5 core-full-nocompat1.4.5
- 1.4.2 1.4.1 1.4.0 1.3.0 1.2.0 1.1.0
- 3.7.3 3.7.2 3.7.1 3.7.0 3.7 3.6.2 3.6.1 3.6

引入框架
- 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2
- 1.11.4 1.11.3 1.11.2 1.11.1 1.11.0 1.10.4 1.10.3 1.10.2
- 3.3.6 3.3.5 3.3.0 3.2.0 2.3.2

汉王

HTML代码

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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>HTML5跑动的小人</title>
</head>
<body>
<div align="center">
<canvas id="demo" style="border:1px solid #ddd;">您的浏览器不支持canvas标签,推荐您更换谷歌游览器，全面兼容html5。</canvas>
<script  type="text/javascript">
var eventjs = {
	//添加事件
	bind: function(elem, type, handler){
		if (elem.addEventListener) {
			elem.addEventListener(type, handler, false);
		} else if(elem.attachEvent){
			//IE
			elem.attachEvent("on" + type, handler);
		}else{
			elem["on" + type] = handler;
		};
	},
	//删除事件
	unbind: function(elem, type ,handler){
		if (elem.removeEventListener) {
			elem.removeEventListener(type, handler, false);
		} else if(elem.detachEvent){
			//IE
			elem.detachEvent("on" + type, handler)
		}else{
			elem["on" + type] = handler;
		};
	},
	//获取事件
	getEvent: function(event){
		return event ? event : window.event;
	},
	//获取事件目标
	getTarget: function(event){
		return event.target || event.srcElement;
	},
	//相关元素
	relatedTarget: function(event){
		if (event.relatedTarget) {
			return event.relatedTarget;
		} else if (event.toElement){
			return event.toElement;
		} else if (event.formElement) {
			return event.formElement;
		} else {
			return null;
		};
	},
	//阻止默认行为
	preventDefault: function(event){
		if(event.preventDefault){
			event.preventDefault();
		}else{
			event.returnValue = false;
		}
	},
	//取消捕获/冒泡
	cancelBubble: function(event){
		if (event.stopPropagation) {
			event.stopPropagation();
		} else{
			event.cancelBubble = true;
		};
	},
	//获取鼠标按钮
	getMouseButton: function(event){
		if (document.implementation.hasFeature("MouseEvents", "2.0")) {
			return event.button;
		} else{
			switch (event.button){
				case 0:
				case 1:
				case 3:
				case 5:
				case 7:
					return 0;
				case 2:
				case 6:
					return 2;
				case 4:
					return 1;
			}
		};
	},
	//获取键盘code
	getCharCode: function(event){
		if (typeof event.charCode == "number") {
			console.log('char code');
			return event.charCode;
		} else{
			return event.keyCode;
		};
	},
	getDirection: function(event){
		var keyCode = event.which || event.keyCode;
		switch(keyCode){
			case 1:
			case 38:
			case 269: //up
				return 'up';
				break;
			case 2:
			case 40:
			case 270:
				return 'down';
				break;
			case 3:
			case 37:
			case 271:
				return 'left';
				break;
			case 4:
			case 39:
			case 272:
				return 'right';
				break;
			case 339: //exit
			case 240: //back
				return 'back';
				break;
		}
	}
};
</script>
<script type="text/javascript">
(function(){
    // canvas
    var canvas = document.getElementById('demo');
    var ctx = canvas.getContext('2d');

//player base
    var playerImage = new Image();
    playerImage.src = '//ku.shouce.ren/files/images/201601/56a0b7121eb80.png';
    var player = {
        x: 50,       // 在canvas中的坐标
        y: 0,
        imageX: 0,  // 图像定位坐标
        imageY: 0,
        width: 50,  // 图像显示区域大小
        height: 60,
        stop: true  // 是否停止
    };

function clean () {
        // clear canvas
        ctx.clearRect(0, 0, canvas.width, canvas.height);
    }

function playerInit () {
        // init player
        playerImage.onload = _drawPlayer;
    }

} else if ('left' === value){
            // move left
            if (player.stop) {
                player.imageX += 50;
            }else{
                player.imageX = 0;
            }
            if (player.imageX >= 150) {
                player.imageX = 0;
            };
            // player move speed
            player.x -= 5;
            player.imageY = 60;
        };

clean();
        _drawPlayer();
    }

function playerJump (value) {
        // player jump
    }

function _drawPlayer () {
        // draw player image
        ctx.drawImage(playerImage, player.imageX, player.imageY, player.width, player.height, player.x, canvas.height - player.height, player.width, player.height);
    }

//init canvas
    var init = (function(options){
        options = options || {};
        canvas.width = options.width || 500;
        canvas.height = options.height || 300;

//init draw rect
        playerInit();

//bind user event
        eventjs.bind(document, 'keydown', function(event){
            var d = eventjs.getDirection(event);
            player.stop = true;
            playerAction(d);
        });
        eventjs.bind(document, 'keyup', function(event){
            var d = eventjs.getDirection(event);
            player.stop = false;
            playerAction(d);
        });
    })({width:800, height:400});

})();
</script>
<footer>&copy; 2012 <a target='_blank' href="#" title='Lee‘s blog —李振昆的博客'>lee</a></footer></body>
</html>

CSS代码

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JS代码

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简介

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名称

HTML5跑动的小人

分类

HTML5代码

描述

HTML5跑动的小人，在网页游戏开发中会用到这些小技巧，一个类似超级玛莉一样的小人在左右方向键的控制下飞快奔跑。浏览器要求，Chrome、Safari、火狐、Opera等，由于目前IE8不支持canvas标签，所以看不到本效果。