用Canvas写一个炫酷的时间更新动画玩玩
2024-07-15 09:42:57 224人阅读
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<script type="text/javascript">// ‘;var WINDOW_WIDTH = 913; var WINDOW_HEIGHT = 400; var RADIUS = 7; //球半径 var NUMBER_GAP = 10; //数字之间的间隙 var u=0.65; //碰撞能量损耗系数 var context; //Canvas绘制上下文 var balls = []; //存储彩色的小球 const colors = ["#33B5E5","#0099CC","#AA66CC","#9933CC","#99CC00","#669900","#FFBB33","#FF8800","#FF4444","#CC0000"]; //彩色小球的颜色 var currentNums = []; //屏幕显示的8个字符 var digit = [ [ [0,0,1,1,1,0,0], [0,1,1,0,1,1,0], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,0,1,1,0], [0,0,1,1,1,0,0] ],//0 [ [0,0,0,1,1,0,0], [0,1,1,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [1,1,1,1,1,1,1] ],//1 [ [0,1,1,1,1,1,0], [1,1,0,0,0,1,1], [0,0,0,0,0,1,1], [0,0,0,0,1,1,0], [0,0,0,1,1,0,0], [0,0,1,1,0,0,0], [0,1,1,0,0,0,0], [1,1,0,0,0,0,0], [1,1,0,0,0,1,1], [1,1,1,1,1,1,1] ],//2 [ [1,1,1,1,1,1,1], [0,0,0,0,0,1,1], [0,0,0,0,1,1,0], [0,0,0,1,1,0,0], [0,0,1,1,1,0,0], [0,0,0,0,1,1,0], [0,0,0,0,0,1,1], [0,0,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,1,1,0] ],//3 [ [0,0,0,0,1,1,0], [0,0,0,1,1,1,0], [0,0,1,1,1,1,0], [0,1,1,0,1,1,0], [1,1,0,0,1,1,0], [1,1,1,1,1,1,1], [0,0,0,0,1,1,0], [0,0,0,0,1,1,0], [0,0,0,0,1,1,0], [0,0,0,1,1,1,1] ],//4 [ [1,1,1,1,1,1,1], [1,1,0,0,0,0,0], [1,1,0,0,0,0,0], [1,1,1,1,1,1,0], [0,0,0,0,0,1,1], [0,0,0,0,0,1,1], [0,0,0,0,0,1,1], [0,0,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,1,1,0] ],//5 [ [0,0,0,0,1,1,0], [0,0,1,1,0,0,0], [0,1,1,0,0,0,0], [1,1,0,0,0,0,0], [1,1,0,1,1,1,0], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,1,1,0] ],//6 [ [1,1,1,1,1,1,1], [1,1,0,0,0,1,1], [0,0,0,0,1,1,0], [0,0,0,0,1,1,0], [0,0,0,1,1,0,0], [0,0,0,1,1,0,0], [0,0,1,1,0,0,0], [0,0,1,1,0,0,0], [0,0,1,1,0,0,0], [0,0,1,1,0,0,0] ],//7 [ [0,1,1,1,1,1,0], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,1,1,0], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,1,1,0] ],//8 [ [0,1,1,1,1,1,0], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [1,1,0,0,0,1,1], [0,1,1,1,0,1,1], [0,0,0,0,0,1,1], [0,0,0,0,0,1,1], [0,0,0,0,1,1,0], [0,0,0,1,1,0,0], [0,1,1,0,0,0,0] ],//9 [ [0,0,0,0], [0,0,0,0], [0,1,1,0], [0,1,1,0], [0,0,0,0], [0,0,0,0], [0,1,1,0], [0,1,1,0], [0,0,0,0], [0,0,0,0] ]//: ]; function drawDatetime(cxt){ var nums = []; context.fillStyle="#005eac" var date = new Date(); var offsetX = 70, offsetY = 30; var hours = date.getHours(); var num1 = Math.floor(hours/10); var num2 = hours%10; nums.push({num: num1}); nums.push({num: num2}); nums.push({num: 10}); //冒号 var minutes = date.getMinutes(); var num1 = Math.floor(minutes/10); var num2 = minutes%10; nums.push({num: num1}); nums.push({num: num2}); nums.push({num: 10}); //冒号 var seconds = date.getSeconds(); var num1 = Math.floor(seconds/10); var num2 = seconds%10; nums.push({num: num1}); nums.push({num: num2}); for(var x = 0;x (WINDOW_HEIGHT-RADIUS)){ ball.offsetY= WINDOW_HEIGHT-RADIUS; ball.vy=-ball.vy*u; } if(ball.offsetX>RADIUS&&ball.offsetX<(WINDOW_WIDTH-RADIUS)){ balls[i]=balls[index]; i++; } } //去除出边界的球 for(;i</script>
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