#include "StdAfx.h"
#include "GameMir.h"

CGameMir::CGameMap::CGameMap(LPCTSTR mapfile) :
m_File(mapfile,CFile::modeRead|CFile::typeBinary|CFile::shareDenyWrite),
m_Maps(NULL),
m_MapData(NULL)
{
	m_MapName.clear();
	m_File.Seek(0,CFile::begin);
	m_File.Read(&m_Head,sizeof(m_Head));
	if(strcmp(m_Head.CopyRight,"#TurboMir#")!=0)
	{
		AfxMessageBox("華芞跡宒渣昫!");
		throw "華芞跡宒渣昫!";
	}
	if(m_Maps!=NULL)
		delete[]m_Maps;
	m_Maps=new MAP_INDEX[m_Head.IdxCount];
	m_File.Read(m_Maps,sizeof(MAP_INDEX)*m_Head.IdxCount);
}

CGameMir::CGameMap::~CGameMap(void)
{
	if(m_Maps!=NULL)
		delete[]m_Maps;
}

void CGameMir::CGameMap::LoadMap(LPCTSTR mapname)
{
	for(unsigned long i=0;i<m_Head.IdxCount;i++)
	{
		if(strcmp(m_Maps[i].MapEnName,mapname)==0)
		{
			m_File.Seek(m_Maps[i].Offset,CFile::begin);
			char Id[3];
			m_File.Read(Id,3);
			if((Id[0]=='S')&&(Id[1]=='H')&&(Id[2]=='K'))
			{
				m_File.Read(&m_MapWidth,4);
				m_File.Read(&m_MapHeight,4);
				long ds=(m_MapWidth*m_MapHeight+7)>>3;
				if(m_MapData!=NULL)
					delete[]m_MapData;
				m_MapData=new BYTE[ds];
				m_File.Read(m_MapData,ds);
				m_MapName=mapname;
				return;
			}
			else
			{
				AfxMessageBox("華芞跡宒渣昫!");
			}
		}
	}
	AfxMessageBox("華芞樓婥囮啖!");
}

bool CGameMir::CGameMap::TestMap(long x, long y)
{
	if (m_MapData==NULL)
	{
		return false;
	}
	if ( x>0 && y>0 && x<m_MapWidth && y<m_MapHeight)
	{
		BYTE bits;
		long index = y * m_MapWidth + x ;
		bits  = (~index) & 0x07;
		index >>= 3;

		BYTE d=m_MapData[index];
		d>>=bits;

		return (d&1)!=0;
	}
	return false;
}