Setting cocos2D camera position using CCFollow

http://snipplr.com/view/39706/setting-cocos2d-camera-position-using-ccfollow/

1. -(void)setPlayerPosition:(CGPoint)position {
2. CGPoint tileCoord = [self tileCoordForPosition:position];
3. int tileGid = [_meta tileGIDAt:tileCoord];
4. if (tileGid) {
5. NSDictionary *properties = [_tileMap propertiesForGID:tileGid];
6. if (properties) {
7. NSString *collision = [properties valueForKey:@"Collidable"];
8. if (collision && [collision compare:@"True"] == NSOrderedSame) {
9. return;
10. }
11. NSString *collectable = [properties valueForKey:@"Collectable"];
12. if (collectable && [collectable compare:@"True"] == NSOrderedSame) {
13. [_meta removeTileAt:tileCoord];
14. [_foreground removeTileAt:tileCoord];
15. self.numCollected++;
16. [_hud numCollectedChanged:_numCollected];
17. }
18. }
19. }
20.  
21. ccTime moveDuration = 0.3;
22. id playerMove = [CCMoveTo actionWithDuration:moveDuration position:position];
23. id cameraMove = [CCFollow actionWithTarget:_player worldBoundary:CGRectMake(0, 0, (_tileMap.mapSize.width * _tileMap.tileSize.width), (_tileMap.mapSize.height * _tileMap.mapSize.height))];
24. [_player runAction:playerMove];
25.  
26. [self runAction:cameraMove];
27.  
28. }