hang0 2011-02-14
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>8方向双向广搜</title> </head> <body> <script type="text/javascript"> var tb = [], o, r, c, n=0, newHash; var dir=[ [-1,0], [1,0], [0,-1], [0,1], [-1,-1], [1,1], [1,-1], [-1,1] ]; function sou(hash){ newHash = {}; for(var i in hash){ for(var j=0; j<8; j++){ r = hash[i].row + dir[j][0]; c = hash[i].col + dir[j][1]; if(r<0||c<0||r==rows||c==cols||tb[r][c].tp==1||tb[r][c].tp==hash[i].tp) continue; o = tb[r][c]; if(o.tp!=0) {alert(new Date()-time);return show(o)(hash[i]);} o.parent = hash[i]; o.tp = o.parent.tp; //o.obj.style.backgroundColor = "#CC66FF"; newHash[r+"."+c] = o; } } //alert("第"+(++n)+"步"); sou(newHash); } function show(o){ if(!o.parent) return show; o.obj.style.backgroundColor = "yellow"; return show(o.parent); } var mapArr = [ [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], 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