liwanghong / aoi

area of interest(AOI)

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aoi

area of interest(AOI)

视野服务

游戏服务器的AOI(area of interest)部分,位置有关的游戏实体一般都有一个视野或关心的范围

效率案例

地图 512x512 , 10 级分割 在地图上同时移动 1000 个对象 实时搜索100个对象周边的视野对象 总共平均耗时 1-2 毫秒 单次搜索平均耗时 8-15 纳秒 机器:i7(2.4), 8G

详情见wiki

简单实用

// make game world
imap *map = imapmake(pos, size, divide)

// make a unit
iunit *unit = iunitmake(id, x, y);

// add unit to game world
imapaddunit(map, unit);

// update the unit position
unit->pos.x = 1;
unit->pos.y = 1;

// refresh the unit position in game world
imapupdateunit(map, unit):

// remove the unit from game world
imapremoveunit(map, unit);

// make a aoi list
isearchresult *result = isearchresultmake();

// search the unit in range of unita
imapsearchfromunit(map, unita, result, range)

// free the aoi list
isearchresultfree(result)

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area of interest(AOI)


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