AS2寻路算法代码,ActionScript代码库,德仔网

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【ActionScript】 AS2寻路算法
作者: / 发布于2011/1/3/ 1877
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            <pre style="line-height: 150%; font-family: Verdana, Monospace; font-size: 12px; font-weight: bold; margin-right: 10px"><span style="color: blue">Stage</span>.<span style="color: blue">scaleMode</span> = <span style="color: #ff0000">"noScale"</span>;
<span style="color: #0000ff">var</span> nx = <span style="color: #cc66cc">25</span>;<span style="font-style: italic; color: #808080">//地图横向格数</span>
<span style="color: #0000ff">var</span> ny = <span style="color: #cc66cc">15</span>;<span style="font-style: italic; color: #808080">//地图纵向格数</span>
<span style="color: #0000ff">var</span> mmap = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span>ny<span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//地图的数组</span>
<span style="color: #0000ff">var</span> vmap = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">4</span><span style="color: #66cc66">*</span>ny<span style="color: #66cc66">*</span>nx<span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//广度搜索的结点存储数组</span>
<span style="color: #0000ff">var</span> fmap = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span>ny<span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//搜索过的结点及障碍标志</span>
<span style="color: #0000ff">var</span> parrow = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span>, <span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>, <span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span>, <span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>, <span style="color: #66cc66">[</span>-<span style="color: #cc66cc">1</span>, <span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>, <span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span>, -<span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//四个方向的行动参数</span>
<span style="color: #0000ff">var</span> cp = <span style="color: #cc66cc">0</span>;<span style="font-style: italic; color: #808080">//当前到达的路径结点的指针</span>
<span style="color: #0000ff">var</span> finded = <span style="color: #0000ff">false</span>;<span style="font-style: italic; color: #808080">//搜索成功标志</span>
<span style="color: blue">_root</span>.<span style="color: blue">createEmptyMovieClip</span><span style="color: #66cc66">(</span><span style="color: #ff0000">"mapbg"</span>,<span style="color: #cc66cc">3</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//创建背景地图mc</span>
<span style="color: blue">_root</span>.<span style="color: blue">createEmptyMovieClip</span><span style="color: #66cc66">(</span><span style="color: #ff0000">"pathshadow"</span>,<span style="color: #cc66cc">4</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//创建路径显示mc</span>
mapbg.<span style="color: blue">useHandCursor</span>;
<span style="font-style: italic; color: #808080">//=======================================画方块函数</span>
drawbox = <span style="color: #0000ff">function</span> <span style="color: #66cc66">(</span>obj, x, y, f<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
<span style="color: #0000ff">var</span> drawx = x<span style="color: #66cc66">*</span><span style="color: #cc66cc">20</span>;
<span style="color: #0000ff">var</span> drawy = y<span style="color: #66cc66">*</span><span style="color: #cc66cc">20</span>;
<span style="color: blue">with</span> <span style="color: #66cc66">(</span>obj<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 <span style="color: blue">lineStyle</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">1</span>,0xcccccc,<span style="color: #cc66cc">100</span><span style="color: #66cc66">)</span>;
 <span style="color: blue">moveTo</span><span style="color: #66cc66">(</span>drawx,drawy<span style="color: #66cc66">)</span>;
 <span style="color: blue">beginFill</span><span style="color: #66cc66">(</span>f,<span style="color: #cc66cc">100</span><span style="color: #66cc66">)</span>;
 <span style="color: blue">lineTo</span><span style="color: #66cc66">(</span>drawx+<span style="color: #cc66cc">20</span>,drawy<span style="color: #66cc66">)</span>;
 <span style="color: blue">lineTo</span><span style="color: #66cc66">(</span>drawx+<span style="color: #cc66cc">20</span>,drawy+<span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
 <span style="color: blue">lineTo</span><span style="color: #66cc66">(</span>drawx,drawy+<span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
 <span style="color: blue">lineTo</span><span style="color: #66cc66">(</span>drawx,drawy<span style="color: #66cc66">)</span>;
 <span style="color: blue">endFill</span><span style="color: #66cc66">(</span><span style="color: #66cc66">)</span>;
<span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>;
<span style="font-style: italic; color: #808080">//=======================================在mapbg中生成随机地图，并把数据存进mmap</span>
<span style="color: #0099cc">for</span> <span style="color: #66cc66">(</span>a=<span style="color: #cc66cc">0</span>; a<span style="color: #66cc66"><</span>ny; a++<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span> = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span>nx<span style="color: #66cc66">)</span>;
fmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span> = <span style="color: #0000ff">new</span> <span style="color: blue">Array</span><span style="color: #66cc66">(</span>nx<span style="color: #66cc66">)</span>;
<span style="color: #0099cc">for</span> <span style="color: #66cc66">(</span>b=<span style="color: #cc66cc">0</span>; b<span style="color: #66cc66"><</span>nx; b++<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 <span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>a == <span style="color: #cc66cc">0</span> <span style="color: #66cc66">&&</span> b == <span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span> = <span style="color: #cc66cc">0</span>;
 <span style="color: #66cc66">}</span> <span style="color: #0099cc">else</span> <span style="color: #66cc66">{</span>
 mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span> = <span style="color: blue">random</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">2</span><span style="color: #66cc66">)</span><span style="color: #66cc66">*</span><span style="color: blue">random</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">2</span><span style="color: #66cc66">)</span><span style="color: #66cc66">*</span><span style="color: blue">random</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">2</span><span style="color: #66cc66">)</span>;
 <span style="color: #66cc66">}</span>
 fmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span> = mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span>;
 <span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span> == <span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 drawbox<span style="color: #66cc66">(</span>mapbg,b,a,0xeeeeee<span style="color: #66cc66">)</span>;
 <span style="color: #66cc66">}</span> <span style="color: #0099cc">else</span> <span style="color: #66cc66">{</span>
 drawbox<span style="color: #66cc66">(</span>mapbg,b,a,0xbbbbbb<span style="color: #66cc66">)</span>;
 <span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>
<span style="font-style: italic; color: #808080">//=======================================创建一个代表人的小圆元件，用在地图上行走</span>
<span style="color: blue">_root</span>.<span style="color: blue">createEmptyMovieClip</span><span style="color: #66cc66">(</span><span style="color: #ff0000">"man"</span>,<span style="color: #cc66cc">5</span><span style="color: #66cc66">)</span>;
<span style="color: blue">with</span> <span style="color: #66cc66">(</span><span style="color: blue">_root</span>.<span style="color: #006600">man</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
<span style="color: blue">lineStyle</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">1</span>,0xff9900,<span style="color: #cc66cc">100</span><span style="color: #66cc66">)</span>;
<span style="color: blue">beginFill</span><span style="color: #66cc66">(</span>0xff9900<span style="color: #66cc66">)</span>;
<span style="color: blue">moveTo</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">10</span><span style="color: #66cc66">)</span>;
<span style="color: blue">curveTo</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">10</span>,<span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span>;
<span style="color: blue">curveTo</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">20</span>,<span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">20</span>,<span style="color: #cc66cc">10</span><span style="color: #66cc66">)</span>;
<span style="color: blue">curveTo</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">20</span>,<span style="color: #cc66cc">20</span>,<span style="color: #cc66cc">10</span>,<span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
<span style="color: blue">curveTo</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">20</span>,<span style="color: #cc66cc">0</span>,<span style="color: #cc66cc">10</span><span style="color: #66cc66">)</span>;
<span style="color: blue">endFill</span><span style="color: #66cc66">(</span><span style="color: #66cc66">)</span>;
<span style="color: #66cc66">}</span>
<span style="font-style: italic; color: #808080">//===================</span>
<span style="color: #0000ff">var</span> bx = <span style="color: #cc66cc">0</span>;
<span style="color: #0000ff">var</span> by = <span style="color: #cc66cc">0</span>;
<span style="color: #0000ff">var</span> ex = <span style="color: #cc66cc">0</span>;
<span style="color: #0000ff">var</span> ey = <span style="color: #cc66cc">0</span>;
<span style="font-style: italic; color: #808080">//========================================鼠标点下的时候进行广度搜索</span>
<span style="color: blue">_root</span>.<span style="color: blue">onMouseDown</span> = <span style="color: #0000ff">function</span><span style="color: #66cc66">(</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
bx = <span style="color: blue">int</span><span style="color: #66cc66">(</span><span style="color: blue">_xmouse</span><span style="color: #66cc66">/</span><span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//取得鼠标点下的格坐标及人的当前准备搜索</span>
by = <span style="color: blue">int</span><span style="color: #66cc66">(</span><span style="color: blue">_ymouse</span><span style="color: #66cc66">/</span><span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
ex = <span style="color: blue">int</span><span style="color: #66cc66">(</span>man.<span style="color: blue">_x</span><span style="color: #66cc66">/</span><span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
ey = <span style="color: blue">int</span><span style="color: #66cc66">(</span>man.<span style="color: blue">_y</span><span style="color: #66cc66">/</span><span style="color: #cc66cc">20</span><span style="color: #66cc66">)</span>;
finded = <span style="color: #0000ff">false</span>;<span style="font-style: italic; color: #808080">//搜索成功标志清掉</span>
pathshadow.<span style="color: blue">clear</span><span style="color: #66cc66">(</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//路径阴影清空</span>
<span style="color: #0099cc">for</span> <span style="color: #66cc66">(</span>a=<span style="color: #cc66cc">0</span>; a<span style="color: #66cc66"><</span>ny; a++<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 <span style="color: #0099cc">for</span> <span style="color: #66cc66">(</span>b=<span style="color: #cc66cc">0</span>; b<span style="color: #66cc66"><</span>nx; b++<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 fmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span> = mmap<span style="color: #66cc66">[</span>a<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>b<span style="color: #66cc66">]</span>;
 <span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span><span style="font-style: italic; color: #808080">//障碍及搜索过的结点标志数组重置</span>
vmap.<span style="color: blue">splice</span><span style="color: #66cc66">(</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span>;<span style="font-style: italic; color: #808080">//结点存储数组清空</span>
<span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>fmap<span style="color: #66cc66">[</span>by<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>bx<span style="color: #66cc66">]</span> == <span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span><span style="font-style: italic; color: #808080">//目标格为空格时才保存为广度搜索根结点</span>
 vmap<span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span> = <span style="color: #66cc66">[</span>bx, by, <span style="color: #cc66cc">1</span>, <span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>;
 fmap<span style="color: #66cc66">[</span>by<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>bx<span style="color: #66cc66">]</span> = <span style="color: #cc66cc">1</span>;
<span style="color: #66cc66">}</span>
p = <span style="color: #cc66cc">1</span>;
i = <span style="color: #cc66cc">1</span>;
<span style="color: #0099cc">while</span> <span style="color: #66cc66">(</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span> <span style="color: #66cc66">!</span>= <span style="color: blue">undefined</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span><span style="font-style: italic; color: #808080">//广度搜索,根结点开始，每个结点四个方向如果为空格而且还没搜索过就把坐标和到根结点的距离及父结点记录进vmap</span>
 <span style="color: #0099cc">for</span> <span style="color: #66cc66">(</span>t=<span style="color: #cc66cc">0</span>; t<span style="color: #66cc66"><</span><span style="color: #cc66cc">4</span>; t++<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 <span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>fmap<span style="color: #66cc66">[</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span><span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span><span style="color: #66cc66">]</span> == <span style="color: #cc66cc">0</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
  p++;
  vmap<span style="color: #66cc66">[</span>p<span style="color: #66cc66">]</span> = <span style="color: #66cc66">[</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>, vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>, vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">2</span><span style="color: #66cc66">]</span>+<span style="color: #cc66cc">1</span>, i<span style="color: #66cc66">]</span>;
  fmap<span style="color: #66cc66">[</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span><span style="color: #66cc66">]</span><span style="color: #66cc66">[</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>+parrow<span style="color: #66cc66">[</span>t<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span><span style="color: #66cc66">]</span> = <span style="color: #cc66cc">1</span>;
 <span style="color: #66cc66">}</span>
 <span style="color: #66cc66">}</span>
 <span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span> == ex <span style="color: #66cc66">&&</span> vmap<span style="color: #66cc66">[</span>i<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span> == ey<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 finded = <span style="color: #0000ff">true</span>;
 cp = i;
 <span style="color: #0099cc">break</span>;
 <span style="color: #66cc66">}</span>
 <span style="font-style: italic; color: #808080">//找到了路径就马上退出搜索，置搜索成功标志，并记录最后搜索到的结点索引</span>
 i++;
<span style="color: #66cc66">}</span>
tempcp = cp;
<span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>finded<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span><span style="font-style: italic; color: #808080">//搜索成功就画出路径阴影</span>
 <span style="color: #0099cc">while</span> <span style="color: #66cc66">(</span>tempcp<span style="color: #66cc66">></span>=<span style="color: #cc66cc">1</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 drawbox<span style="color: #66cc66">(</span>pathshadow,vmap<span style="color: #66cc66">[</span>tempcp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>,vmap<span style="color: #66cc66">[</span>tempcp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>,0xccff99<span style="color: #66cc66">)</span>;
 tempcp = vmap<span style="color: #66cc66">[</span>tempcp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">3</span><span style="color: #66cc66">]</span>;
 <span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>;
<span style="font-style: italic; color: #808080">//=====================================定时自运行函数，当找到路径后将代表人的圆mc一步步按路径走向目标点。</span>
mango = <span style="color: #0000ff">function</span> <span style="color: #66cc66">(</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
<span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>finded<span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 cp = vmap<span style="color: #66cc66">[</span>cp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">3</span><span style="color: #66cc66">]</span>;
 man.<span style="color: blue">_x</span> = <span style="color: #cc66cc">20</span><span style="color: #66cc66">*</span>vmap<span style="color: #66cc66">[</span>cp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">0</span><span style="color: #66cc66">]</span>;
 man.<span style="color: blue">_y</span> = <span style="color: #cc66cc">20</span><span style="color: #66cc66">*</span>vmap<span style="color: #66cc66">[</span>cp<span style="color: #66cc66">]</span><span style="color: #66cc66">[</span><span style="color: #cc66cc">1</span><span style="color: #66cc66">]</span>;
 <span style="color: #0099cc">if</span> <span style="color: #66cc66">(</span>cp == <span style="color: #cc66cc">1</span><span style="color: #66cc66">)</span> <span style="color: #66cc66">{</span>
 pathshadow.<span style="color: blue">clear</span><span style="color: #66cc66">(</span><span style="color: #66cc66">)</span>;
 finded = <span style="color: #0000ff">false</span>;
 <span style="color: #66cc66">}</span>
 <span style="font-style: italic; color: #808080">//行走结束的时候把路径阴影清空</span>
<span style="color: #66cc66">}</span>
<span style="color: #66cc66">}</span>;
<span style="color: blue">setInterval</span><span style="color: #66cc66">(</span>mango,<span style="color: #cc66cc">50</span><span style="color: #66cc66">)</span>;</pre>
            </td>
        </tr>
    </tbody>
</table>
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