Cocos2d滚动游戏TileMap碰撞

Question

我有不同的瓷砖层，我以不同的速度移动，我的播放器固定在位（水平）。现在我该如何检测到我的播放器正在相互碰撞？我如何知道不同图层中图块的坐标？

Answer 1

我想通了这一点与本教程的帮助http://paulsonapps.wordpress.com/2010/03/12/tutorial-1-tilemap-with-collision-game-cocos2d/

-(void)handleCollision 
{ 
    for (CCTMXLayer *lr in layers) { 
     // Determine the four corners of my player 
     int tlXright = floor(player.playerSprite.position.x+player.playerSprite.contentSize.width-lr.position.x); 
     int tlXleft = floor(player.playerSprite.position.x-lr.position.x); 
     int tlYup = floor(player.playerSprite.position.y+player.playerSprite.contentSize.height); 
     int tlYdown = floor(player.playerSprite.position.y); 


     //Convert our Map points 
     CGPoint nodeSpace1 = [tileMap convertToNodeSpace:ccp(tlXright,tlYdown)]; 
     pos1X = floor(nodeSpace1.x/tileMap.tileSize.width); 
     pos1Y = floor(tileMap.mapSize.height - (nodeSpace1.y/tileMap.tileSize.height)); 

     CGPoint nodeSpace2 = [tileMap convertToNodeSpace:ccp(tlXright,tlYup)]; 
     pos2X = floor(nodeSpace2.x/tileMap.tileSize.width); 
     pos2Y = floor(tileMap.mapSize.height - (nodeSpace2.y/tileMap.tileSize.height)); 

     CGPoint nodeSpace3 = [tileMap convertToNodeSpace:ccp(tlXleft,tlYdown)]; 
     pos3X = floor(nodeSpace3.x/tileMap.tileSize.width); 
     pos3Y = floor(tileMap.mapSize.height - (nodeSpace3.y/tileMap.tileSize.height)); 

     CGPoint nodeSpace4 = [tileMap convertToNodeSpace:ccp(tlXleft,tlYup)]; 
     pos4X = floor(nodeSpace4.x/tileMap.tileSize.width); 
     pos4Y = floor(tileMap.mapSize.height - (nodeSpace4.y/tileMap.tileSize.height)); 


     unsigned int gid5 = [lr tileGIDAt:ccp(pos1X,pos1Y)]; 
     unsigned int gid6 = [lr tileGIDAt:ccp(pos2X,pos2Y)]; 
     unsigned int gid7 = [lr tileGIDAt:ccp(pos3X,pos3Y)]; 
     unsigned int gid8 = [lr tileGIDAt:ccp(pos4X,pos4Y)]; 


     //NSLog(@"gid5:%d gid6:%d gid7:%d gid8:%d",gid5,gid6,gid7,gid8); 
     /NSLog(@"pos1x:%d pos1y:%d pos4x:%d pos4y:%d",pos1X ,pos1Y,pos4X,pos4Y); 
     if (gid5 == 5) { 
      [lr removeTileAt:ccp(pos1X,pos1Y)]; 
     } 


     if (gid6 == 5) { 
      [lr removeTileAt:ccp(pos2X,pos2Y)]; 

     } 

     if (gid7 == 5) { 
      [lr removeTileAt:ccp(pos3X,pos3Y)]; 
     } 

     if (gid8 == 5) { 
      [lr removeTileAt:ccp(pos4X,pos4Y)]; 
     } 
    } 
} 

知道瓷砖的坐标，我减去层位置的球员

 
int tlXright = floor(player.playerSprite.position.x+player.playerSprite.contentSize.width-lr.position.x); 

和转换的位置它就像在教程中一样。

 
CGPoint nodeSpace1 = [tileMap convertToNodeSpace:ccp(tlXright,tlYdown)]; 
    pos1X = floor(nodeSpace1.x/tileMap.tileSize.width); 
    pos1Y = floor(tileMap.mapSize.height - (nodeSpace1.y/tileMap.tileSize.height));
 

...