cocos2dx tiledmap 45度地图 世界坐标转换 格子坐标

概述Size mapSize = m_map->getMapSize(); Size tileSize = m_map->getTileSize(); Vec2 pos = position; float halfMapWidth = mapSize.width * 0.5f; float mapHeight = mapSize.height; float tileWidth = tileSize.w Size mapSize = m_map->getMapSize(); Size tileSize = m_map->getTileSize(); Vec2 pos = position; float halfMapWIDth = mapSize.wIDth * 0.5f; float mapHeight = mapSize.height; float tileWIDth = tileSize.wIDth; float tileHeight = tileSize.height; Vec2 tilePosdiv = CCPointMake(pos.x / tileWIDth,pos.y / tileHeight); float inverseTileY = mapHeight - tilePosdiv.y; // Cast to int makes sure that result is in whole numbers,tile coordinates will be used as array indices float posX = (int)(inverseTileY + tilePosdiv.x - halfMapWIDth); float posY = (int)(inverseTileY - tilePosdiv.x + halfMapWIDth); // make sure coordinates are within isomap bounds posX = MAX(0,posX); posX = MIN(mapSize.wIDth - 1,posX); posY = MAX(0,posY); posY = MIN(mapSize.height - 1,posY); pos = CCPointMake(posX,posY); 总结

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