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aixianling
298
sdk/commonLib/cpp/JXAbsGameMap.cpp
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298
sdk/commonLib/cpp/JXAbsGameMap.cpp
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#include <stdio.h>
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#include<stdlib.h>
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#ifdef WIN32
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#include <tchar.h>
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#include <Windows.h>
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#endif
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#include <_ast.h>
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#include <_memchk.h>
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#include <zlib.h>
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#include "Stream.h"
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#include "ZStream.h"
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#include "JXAbsGameMap.h"
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#include <BufferAllocator.h>
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using namespace jxcomm::gameMap;
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using namespace wylib::stream;
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using namespace wylib::zstream;
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//地图文件头标志
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const DWORD MapFileHeaderIdent = 0x00504D57;
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//地图版本号定义
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const DWORD MapFileVersion_101116 = 0x000A0B10;
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const DWORD MapFileVersion_101206 = 0x000A0C06;
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//使用战将2的资源
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const DWORD MapFileVersion_120320 = 0x000A0302;
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//当前地图版本号
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const DWORD MapFileVersion_Current = MapFileVersion_120320;
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//不可移动标记
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const UINT_PTR MAPFLAG_MOVEABLE = 0x8000;
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#define USE_NEW_MAPFILE_HEADER
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/*
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* 地图文件头结构
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*/
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typedef struct tagJXMapFileHeader
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{
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/*
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DWORD dwIdent; //文件头标识，固定为0x004D584A
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DWORD dwVersion; //文件版本，固定为0x000A0B0F
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INT nWidth; //地图宽度
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INT nHeight; //地图高度
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INT nBackground; //地图背景图片编号
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DWORD dwDataSize; //地图坐标数据段字节长度
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BYTE btReseve[40];
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*/
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#ifdef USE_NEW_MAPFILE_HEADER
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//char hdr_[5]; // "map"
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//int dwVersion; // 文件版本，固定为0x000A0B0F
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//unsigned char dwDataSize; // 常量，64像素
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//int pxi_width_; // 地图的像素大小
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//int pix_height_;
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int nWidth; // 地图宽度
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int nHeight; // 地图高度
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#else
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unsigned int dwVersion; // 文件版本0x0101
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int nWidth; // 地图宽度
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int nHeight; // 地图高度
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int bg_img_; // 地图背景图片编号
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unsigned int dwDataSize; // 地图坐标数据段字节长度
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unsigned char reseve_[32];
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#endif
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}MAPFILE_HEADER, *PMAPFILE_HEADER;
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enum GripFlag
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{
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gfBlock = 0, //阻挡
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gfCanMove = 1, //行走区
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gfThrough = 2, //透明区
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gfNofly = 3, //阻挡且不能飞跃
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};
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/*
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* 地图坐标完整结构
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*/
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typedef struct tagJXMapCell
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{
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unsigned char wFlag; // 0=阻档，1=行走区,2=透明区,3=阻挡且不能飞跃
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}MAPCELL, *PMAPCELL;
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CAbstractMap::CAbstractMap()
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{
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m_dwWidth = 0;
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m_dwHeight = 0;
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m_pGridData = NULL;
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m_pMoveableIndex = NULL;
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m_nMoveableCount = 0;
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m_nBBoxT = 0;
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m_nBBoxL = 0;
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m_nBBoxR = 0;
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m_nBBoxB = 0;
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m_pAllocator = new CBufferAllocator();
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//m_pWayPointMap =NULL;
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//m_nWayPointCount =0;
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}
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CAbstractMap::~CAbstractMap()
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{
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if ( m_pMoveableIndex )
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m_pAllocator->FreeBuffer(m_pMoveableIndex);
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if (m_pGridData)
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m_pAllocator->FreeBuffer(m_pGridData);
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if (m_pAllocator)
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free(m_pAllocator);
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/*
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if(m_pWayPointMap)
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{
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free(m_pWayPointMap);
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}
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*/
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}
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/*
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int CAbstractMap::GetMapPosValue(int x,int y)
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{
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return getMoveableIndex(x,y);
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}
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*/
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bool CAbstractMap::LoadFromStream(CBaseStream& stream)
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{
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MAPFILE_HEADER hdr;
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MAPCELL* map_grid, *grid_ptr;
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//将压缩过的坐标数据段读取到内存流
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CMemoryStream ms;
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ms.copyFrom(stream, stream.getSize());
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ms.setPosition(0);
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//从内存流中创建解压流，以便解压坐标数据
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//CZDecompressionStream deStream(ms);
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CMemoryStream& deStream = ms;
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int max = 0;
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//读取并检查文件头
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if (deStream.read(&hdr, sizeof(hdr)) != sizeof(hdr))
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return false;
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// 地图打包文件，按照大头的字节序打包了
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//hdr.nWidth = ntohl(hdr.nWidth);
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//hdr.nHeight = ntohl(hdr.nHeight);
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size_t grid_count = sizeof(MAPCELL) * hdr.nWidth * hdr.nHeight;
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if (m_pGridData) m_pAllocator->FreeBuffer(m_pGridData);
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m_pGridData = grid_ptr = map_grid = (MAPCELL*)m_pAllocator->AllocBuffer(grid_count);
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if (grid_count != (const size_t)deStream.read(map_grid, (const int)grid_count))
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return false;
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max = hdr.nWidth * hdr.nHeight;
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m_nMoveableCount = 0;
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if (m_pMoveableIndex) m_pAllocator->FreeBuffer(m_pMoveableIndex);
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BYTE* index_ptr = m_pMoveableIndex = (BYTE*)m_pAllocator->AllocBuffer(max * sizeof(*index_ptr));
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memset(index_ptr, 0, max * sizeof(*index_ptr)); // 如果是memset其他值会有问题
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// 这个索引值跟旧版本的不一样
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for (int i = 0; i < max; ++i)
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{
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if (grid_ptr->wFlag != gfBlock /*&& grid_ptr->wFlag != gfNofly*/)//不是明确的不可走点,都认为可走就行了
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{
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int x = i / hdr.nHeight;
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int y = i % hdr.nHeight;
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*(index_ptr + (y * hdr.nWidth + x)) = grid_ptr->wFlag;
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m_nMoveableCount++;
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}
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grid_ptr++;
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}
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//保存地图宽度以及高度数据
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m_dwWidth = hdr.nWidth;
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m_dwHeight = hdr.nHeight;
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return true;
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}
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/*
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bool CAbstractMap::LoadFromStream(CBaseStream& stream)
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{
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MAPFILE_HEADER hdr;
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size_t dwCellSize;
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PMAPCELL pMapCell, pMapCellPtr;
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//读取并检查文件头
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if ( stream.read(&hdr, sizeof(hdr)) != sizeof(hdr) )
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{
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return false;
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}
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if ( hdr.dwIdent != MapFileHeaderIdent )
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{
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return false;
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}
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if ( hdr.dwVersion != MapFileVersion_Current )
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{
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return false;
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}
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INT_PTR nTotalSize= stream.getSize(); //获取文件的大小
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INT_PTR nDataSize = nTotalSize - sizeof(hdr); //减去头的长度就是数据的长度
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//将压缩过的坐标数据段读取到内存流
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CMemoryStream ms;
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ms.copyFrom(stream, nDataSize);
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ms.setPosition(0);
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//从内存流中创建解压流，以便解压坐标数据
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CZDecompressionStream deStream(ms);
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dwCellSize = sizeof(*pMapCell) * hdr.nWidth * hdr.nHeight;
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pMapCellPtr = pMapCell = (PMAPCELL)malloc(dwCellSize);
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if ( dwCellSize != deStream.read(pMapCell, dwCellSize) )
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return false;
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//生成抽象灰度地图
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int i, max = hdr.nWidth * hdr.nHeight;
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m_nMoveableCount = 0;
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int nIntCount = max/32 +1; //占用多少个Int
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BYTE* pMoveIndex = m_pMoveableIndex = (BYTE*) realloc(m_pMoveableIndex, max * sizeof(*pMoveIndex));
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memset(pMoveIndex, 0, max * sizeof(*pMoveIndex));
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m_nBBoxL = hdr.nWidth;
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m_nBBoxT = hdr.nHeight;
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for ( i=0; i<max; ++i)
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{
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if ((pMapCellPtr->wFlag & MAPFLAG_MOVEABLE) == 0)
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{
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*pMoveIndex = 1;
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m_nMoveableCount++;
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int nY = i / hdr.nWidth; //y坐标
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int nX = i % hdr.nWidth; //x坐标
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if (m_nBBoxL > nX)
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m_nBBoxL = nX;
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else if (nX > m_nBBoxR)
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m_nBBoxR = nX;
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if (m_nBBoxT > nY)
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m_nBBoxT = nY;
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else if (nY > m_nBBoxB)
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m_nBBoxB = nY;
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}
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pMoveIndex++;
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pMapCellPtr++;
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}
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//保存地图宽度以及高度数据
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m_dwWidth = hdr.nWidth;
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m_dwHeight = hdr.nHeight;
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free(pMapCell);
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return true;
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}
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*/
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bool CAbstractMap::LoadFromFile(LPCTSTR sFileName)
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{
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CFileStream fs(sFileName, CFileStream::faRead || CFileStream::faShareRead);
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return LoadFromStream(fs);
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}
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void CAbstractMap::initDefault(DWORD dwWidth, DWORD dwHeight)
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{
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//生成抽象灰度地图
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int i, max = dwWidth * dwHeight;
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m_nMoveableCount = 0;
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if (m_pMoveableIndex) m_pAllocator->FreeBuffer(m_pMoveableIndex);
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BYTE* pMoveIndex = m_pMoveableIndex = (BYTE*)m_pAllocator->AllocBuffer(max * sizeof(*pMoveIndex));
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for ( i=0; i<max; ++i)
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{
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(*pMoveIndex) = 1;
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m_nMoveableCount++;
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pMoveIndex++;
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}
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//保存地图宽度以及高度数据
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m_dwWidth = dwWidth;
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m_dwHeight = dwHeight;
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}
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