/*
 * type:	gradient_1,gradient_2,gradient_3,gradient_4		线性倾斜渐变，四个方向
 * 			vertical_1,vertical_2,vertical_3,vertical_4		线性垂直渐变，四个方向
 * 			random_1,random_2,random_3,random_4				数字代表动画时间长度
 * 			onebyone_1,onebyone_2,onebyone_3,onebyone_4		逐个，四个方向
* 			domino_1,domino_2,domino_3,domino_4				骨牌，四个方向
 */	

function initMask (type) {
	
	var w = 20;			//遮罩单元的宽度
	var h = 20;			//遮罩单元的高度
	var idx_1 = 15;		//数组一维长度，遮罩相对单元的高度
	var idx_2 = 12;		//数组二维长度，遮罩相对单元的宽度
	
	mask.zn = 0;
	mask.znMax = 0;
	mask.zArr = new Array();
	
	var typeArr = type.split("_");
	switch (typeArr[0]) {
		case "gradient":
			for (var i=0,k=1; i<idx_1; i++,k++) {
				mask.zArr.push([]);
				for (var j=0; j<idx_2; j++) {
					mask.zArr[mask.zArr.length-1].push(j+k);
				}
				if(typeArr[1]==2||typeArr[1]==3)mask.zArr[mask.zArr.length-1].reverse();
			}
			if(typeArr[1]==3||typeArr[1]==4)mask.zArr.reverse();
			mask.znMax = j+k-1;
			break;
			
		case "vertical":
			for (var i=0; i<idx_1; i++) {
				mask.zArr.push([]);
				for (var j=0; j<idx_2; j++) {
					mask.zArr[mask.zArr.length-1].push(typeArr[1]==2||typeArr[1]==4?j:i);
				}
				if(typeArr[1]==2)mask.zArr[mask.zArr.length-1].reverse();
			}
			if(typeArr[1]==3)mask.zArr.reverse();
			mask.znMax = idx_1>idx_2?idx_1:idx_2;
			break;
			
		case "random":
			var ranMax = idx_1*idx_2*typeArr[1]/4;
			for (var i=0; i<idx_1; i++) {
				mask.zArr.push([]);
				for (var j=0; j<idx_2; j++) {
					mask.zArr[mask.zArr.length-1].push(Math.ceil(Math.random()*ranMax));
				}
			}
			mask.znMax = Math.ceil(ranMax);
			break;
			
		case "onebyone":
			for (var i=0; i<idx_1; i++) {
				mask.zArr.push([]);
				for (var j=0; j<idx_2; j++) {
					mask.zArr[mask.zArr.length-1].push(i*idx_1+j);
				}
				if(typeArr[1]==2||typeArr[1]==3)mask.zArr[mask.zArr.length-1].reverse();
			}
			if(typeArr[1]==3||typeArr[1]==4)mask.zArr.reverse();
			mask.znMax = i*idx_1+j -1;
			break;
			
		case "domino":
			for (var i=0,k=0; i<idx_1; i++,k++) {
				mask.zArr.push([]);
				for (var j=0; j<idx_2; j++) {
					mask.zArr[mask.zArr.length-1].push(i*idx_1+j);
				}
				if(k%2) mask.zArr[mask.zArr.length-1].reverse();
				if(typeArr[1]==2||typeArr[1]==3)mask.zArr[mask.zArr.length-1].reverse();
			}
			if(typeArr[1]==3||typeArr[1]==4)mask.zArr.reverse();
			mask.znMax = i*idx_1+j -1;
			break;
		default:;
	}
	
	for (var i=0; i<idx_1; i++) {
		for (var j=0; j<idx_2; j++) {
			var k = i*idx_1+j;
			mask.mov.duplicateMovieClip("m"+k, k, {xn:i, yn:j, _x:j*w, _y:i*h});
			mask["m"+k].onEnterFrame = function() {
				if (mask.zArr[this.xn][this.yn] == mask.zn) {
					this.play();
					delete this.onEnterFrame;
				}
			};d
		}
	}
	mask.onEnterFrame = function() {
		this.zn<this.znMax ? this.zn++ : delete this.onEnterFrame;
	};
}

pic.setMask(this.mask);
//initMask("gradient_3");
initMask("domino_1");