text: /* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
  /* If you are missing that file, acquire a complete release at teeworlds.com.                */
  #include "layers.h"
  
  CLayers::CLayers()
  {
  	m_GroupsNum = 0;
  	m_GroupsStart = 0;
  	m_LayersNum = 0;
  	m_LayersStart = 0;
  	m_pGameGroup = 0;
  	m_pGameLayer = 0;
  	m_pMap = 0;
  }
  
  void CLayers::Init(class IKernel *pKernel)
  {
  	m_pMap = pKernel->RequestInterface<IMap>();
  	m_pMap->GetType(MAPITEMTYPE_GROUP, &m_GroupsStart, &m_GroupsNum);
  	m_pMap->GetType(MAPITEMTYPE_LAYER, &m_LayersStart, &m_LayersNum);
  
  	for(int g = 0; g < NumGroups(); g++)
  	{
  		CMapItemGroup *pGroup = GetGroup(g);
  		for(int l = 0; l < pGroup->m_NumLayers; l++)
  		{
  			CMapItemLayer *pLayer = GetLayer(pGroup->m_StartLayer+l);
  
  			if(pLayer->m_Type == LAYERTYPE_TILES)
  			{
  				CMapItemLayerTilemap *pTilemap = reinterpret_cast<CMapItemLayerTilemap *>(pLayer);
  				if(pTilemap->m_Flags&1)
  				{
  					m_pGameLayer = pTilemap;
  					m_pGameGroup = pGroup;
  
  					// make sure the game group has standard settings
  					m_pGameGroup->m_OffsetX = 0;
  					m_pGameGroup->m_OffsetY = 0;
  					m_pGameGroup->m_ParallaxX = 100;
  					m_pGameGroup->m_ParallaxY = 100;
  
  					if(m_pGameGroup->m_Version >= 2)
  					{
  						m_pGameGroup->m_UseClipping = 0;
  						m_pGameGroup->m_ClipX = 0;
  						m_pGameGroup->m_ClipY = 0;
  						m_pGameGroup->m_ClipW = 0;
  						m_pGameGroup->m_ClipH = 0;
  					}
  
  					break;
  				}
  			}
  		}
  	}
  }
  
  CMapItemGroup *CLayers::GetGroup(int Index) const
  {
  	return static_cast<CMapItemGroup *>(m_pMap->GetItem(m_GroupsStart+Index, 0, 0));
  }
  
  CMapItemLayer *CLayers::GetLayer(int Index) const
  {
  	return static_cast<CMapItemLayer *>(m_pMap->GetItem(m_LayersStart+Index, 0, 0));
  }
  