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server/src/game/GridMap.cpp
patman128 1997cf2769 [10002] Fixed map loading .map build checks. 
Bug exist long time before recent code moves.
But it not affect in cases proper .map files.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>
2010-05-29 04:44:53 +04:00

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/*
* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "MapManager.h"
#include "Log.h"
#include "GridStates.h"
#include "CellImpl.h"
#include "Map.h"
#include "Config/ConfigEnv.h"
#include "DBCEnums.h"
#include "DBCStores.h"
#include "GridMap.h"
#include "VMapFactory.h"
#include "World.h"
char const* MAP_MAGIC = "MAPS";
char const* MAP_VERSION_MAGIC = "v1.1";
char const* MAP_AREA_MAGIC = "AREA";
char const* MAP_HEIGHT_MAGIC = "MHGT";
char const* MAP_LIQUID_MAGIC = "MLIQ";
GridMap::GridMap()
{
m_flags = 0;
// Area data
m_gridArea = 0;
m_area_map = NULL;
// Height level data
m_gridHeight = INVALID_HEIGHT;
m_gridGetHeight = &GridMap::getHeightFromFlat;
m_V9 = NULL;
m_V8 = NULL;
// Liquid data
m_liquidType = 0;
m_liquid_offX = 0;
m_liquid_offY = 0;
m_liquid_width = 0;
m_liquid_height = 0;
m_liquidLevel = INVALID_HEIGHT;
m_liquid_type = NULL;
m_liquid_map = NULL;
}
GridMap::~GridMap()
{
unloadData();
}
bool GridMap::loadData(char *filename)
{
// Unload old data if exist
unloadData();
GridMapFileHeader header;
// Not return error if file not found
FILE *in = fopen(filename, "rb");
if (!in)
return true;
fread(&header, sizeof(header),1,in);
if (header.mapMagic == *((uint32 const*)(MAP_MAGIC)) &&
header.versionMagic == *((uint32 const*)(MAP_VERSION_MAGIC)) &&
IsAcceptableClientBuild(header.buildMagic))
{
// loadup area data
if (header.areaMapOffset && !loadAreaData(in, header.areaMapOffset, header.areaMapSize))
{
sLog.outError("Error loading map area data\n");
fclose(in);
return false;
}
// loadup height data
if (header.heightMapOffset && !loadHeightData(in, header.heightMapOffset, header.heightMapSize))
{
sLog.outError("Error loading map height data\n");
fclose(in);
return false;
}
// loadup liquid data
if (header.liquidMapOffset && !loadGridMapLiquidData(in, header.liquidMapOffset, header.liquidMapSize))
{
sLog.outError("Error loading map liquids data\n");
fclose(in);
return false;
}
fclose(in);
return true;
}
sLog.outError("Map file '%s' is non-compatible version (outdated?). Please, create new using ad.exe program.", filename);
fclose(in);
return false;
}
void GridMap::unloadData()
{
if (m_area_map)
delete[] m_area_map;
if (m_V9)
delete[] m_V9;
if (m_V8)
delete[] m_V8;
if (m_liquid_type)
delete[] m_liquid_type;
if (m_liquid_map)
delete[] m_liquid_map;
m_area_map = NULL;
m_V9 = NULL;
m_V8 = NULL;
m_liquid_type = NULL;
m_liquid_map = NULL;
m_gridGetHeight = &GridMap::getHeightFromFlat;
}
bool GridMap::loadAreaData(FILE *in, uint32 offset, uint32 /*size*/)
{
GridMapAreaHeader header;
fseek(in, offset, SEEK_SET);
fread(&header, sizeof(header), 1, in);
if (header.fourcc != *((uint32 const*)(MAP_AREA_MAGIC)))
return false;
m_gridArea = header.gridArea;
if (!(header.flags & MAP_AREA_NO_AREA))
{
m_area_map = new uint16 [16*16];
fread(m_area_map, sizeof(uint16), 16*16, in);
}
return true;
}
bool GridMap::loadHeightData(FILE *in, uint32 offset, uint32 /*size*/)
{
GridMapHeightHeader header;
fseek(in, offset, SEEK_SET);
fread(&header, sizeof(header), 1, in);
if (header.fourcc != *((uint32 const*)(MAP_HEIGHT_MAGIC)))
return false;
m_gridHeight = header.gridHeight;
if (!(header.flags & MAP_HEIGHT_NO_HEIGHT))
{
if ((header.flags & MAP_HEIGHT_AS_INT16))
{
m_uint16_V9 = new uint16 [129*129];
m_uint16_V8 = new uint16 [128*128];
fread(m_uint16_V9, sizeof(uint16), 129*129, in);
fread(m_uint16_V8, sizeof(uint16), 128*128, in);
m_gridIntHeightMultiplier = (header.gridMaxHeight - header.gridHeight) / 65535;
m_gridGetHeight = &GridMap::getHeightFromUint16;
}
else if ((header.flags & MAP_HEIGHT_AS_INT8))
{
m_uint8_V9 = new uint8 [129*129];
m_uint8_V8 = new uint8 [128*128];
fread(m_uint8_V9, sizeof(uint8), 129*129, in);
fread(m_uint8_V8, sizeof(uint8), 128*128, in);
m_gridIntHeightMultiplier = (header.gridMaxHeight - header.gridHeight) / 255;
m_gridGetHeight = &GridMap::getHeightFromUint8;
}
else
{
m_V9 = new float [129*129];
m_V8 = new float [128*128];
fread(m_V9, sizeof(float), 129*129, in);
fread(m_V8, sizeof(float), 128*128, in);
m_gridGetHeight = &GridMap::getHeightFromFloat;
}
}
else
m_gridGetHeight = &GridMap::getHeightFromFlat;
return true;
}
bool GridMap::loadGridMapLiquidData(FILE *in, uint32 offset, uint32 /*size*/)
{
GridMapLiquidHeader header;
fseek(in, offset, SEEK_SET);
fread(&header, sizeof(header), 1, in);
if (header.fourcc != *((uint32 const*)(MAP_LIQUID_MAGIC)))
return false;
m_liquidType = header.liquidType;
m_liquid_offX = header.offsetX;
m_liquid_offY = header.offsetY;
m_liquid_width = header.width;
m_liquid_height = header.height;
m_liquidLevel = header.liquidLevel;
if (!(header.flags & MAP_LIQUID_NO_TYPE))
{
m_liquid_type = new uint8 [16*16];
fread(m_liquid_type, sizeof(uint8), 16*16, in);
}
if (!(header.flags & MAP_LIQUID_NO_HEIGHT))
{
m_liquid_map = new float [m_liquid_width*m_liquid_height];
fread(m_liquid_map, sizeof(float), m_liquid_width*m_liquid_height, in);
}
return true;
}
uint16 GridMap::getArea(float x, float y)
{
if (!m_area_map)
return m_gridArea;
x = 16 * (32 - x/SIZE_OF_GRIDS);
y = 16 * (32 - y/SIZE_OF_GRIDS);
int lx = (int)x & 15;
int ly = (int)y & 15;
return m_area_map[lx*16 + ly];
}
float GridMap::getHeightFromFlat(float /*x*/, float /*y*/) const
{
return m_gridHeight;
}
float GridMap::getHeightFromFloat(float x, float y) const
{
if (!m_V8 || !m_V9)
return m_gridHeight;
x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
int x_int = (int)x;
int y_int = (int)y;
x -= x_int;
y -= y_int;
x_int &= (MAP_RESOLUTION - 1);
y_int &= (MAP_RESOLUTION - 1);
// Height stored as: h5 - its v8 grid, h1-h4 - its v9 grid
// +--------------> X
// | h1-------h2 Coordinates is:
// | | \ 1 / | h1 0,0
// | | \ / | h2 0,1
// | | 2 h5 3 | h3 1,0
// | | / \ | h4 1,1
// | | / 4 \ | h5 1/2,1/2
// | h3-------h4
// V Y
// For find height need
// 1 - detect triangle
// 2 - solve linear equation from triangle points
// Calculate coefficients for solve h = a*x + b*y + c
float a,b,c;
// Select triangle:
if (x+y < 1)
{
if (x > y)
{
// 1 triangle (h1, h2, h5 points)
float h1 = m_V9[(x_int )*129 + y_int];
float h2 = m_V9[(x_int+1)*129 + y_int];
float h5 = 2 * m_V8[x_int*128 + y_int];
a = h2-h1;
b = h5-h1-h2;
c = h1;
}
else
{
// 2 triangle (h1, h3, h5 points)
float h1 = m_V9[x_int*129 + y_int ];
float h3 = m_V9[x_int*129 + y_int+1];
float h5 = 2 * m_V8[x_int*128 + y_int];
a = h5 - h1 - h3;
b = h3 - h1;
c = h1;
}
}
else
{
if (x > y)
{
// 3 triangle (h2, h4, h5 points)
float h2 = m_V9[(x_int+1)*129 + y_int ];
float h4 = m_V9[(x_int+1)*129 + y_int+1];
float h5 = 2 * m_V8[x_int*128 + y_int];
a = h2 + h4 - h5;
b = h4 - h2;
c = h5 - h4;
}
else
{
// 4 triangle (h3, h4, h5 points)
float h3 = m_V9[(x_int )*129 + y_int+1];
float h4 = m_V9[(x_int+1)*129 + y_int+1];
float h5 = 2 * m_V8[x_int*128 + y_int];
a = h4 - h3;
b = h3 + h4 - h5;
c = h5 - h4;
}
}
// Calculate height
return a * x + b * y + c;
}
float GridMap::getHeightFromUint8(float x, float y) const
{
if (!m_uint8_V8 || !m_uint8_V9)
return m_gridHeight;
x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
int x_int = (int)x;
int y_int = (int)y;
x -= x_int;
y -= y_int;
x_int &= (MAP_RESOLUTION - 1);
y_int &= (MAP_RESOLUTION - 1);
int32 a, b, c;
uint8 *V9_h1_ptr = &m_uint8_V9[x_int*128 + x_int + y_int];
if (x+y < 1)
{
if (x > y)
{
// 1 triangle (h1, h2, h5 points)
int32 h1 = V9_h1_ptr[ 0];
int32 h2 = V9_h1_ptr[129];
int32 h5 = 2 * m_uint8_V8[x_int*128 + y_int];
a = h2-h1;
b = h5-h1-h2;
c = h1;
}
else
{
// 2 triangle (h1, h3, h5 points)
int32 h1 = V9_h1_ptr[0];
int32 h3 = V9_h1_ptr[1];
int32 h5 = 2 * m_uint8_V8[x_int*128 + y_int];
a = h5 - h1 - h3;
b = h3 - h1;
c = h1;
}
}
else
{
if (x > y)
{
// 3 triangle (h2, h4, h5 points)
int32 h2 = V9_h1_ptr[129];
int32 h4 = V9_h1_ptr[130];
int32 h5 = 2 * m_uint8_V8[x_int*128 + y_int];
a = h2 + h4 - h5;
b = h4 - h2;
c = h5 - h4;
}
else
{
// 4 triangle (h3, h4, h5 points)
int32 h3 = V9_h1_ptr[ 1];
int32 h4 = V9_h1_ptr[130];
int32 h5 = 2 * m_uint8_V8[x_int*128 + y_int];
a = h4 - h3;
b = h3 + h4 - h5;
c = h5 - h4;
}
}
// Calculate height
return (float)((a * x) + (b * y) + c)*m_gridIntHeightMultiplier + m_gridHeight;
}
float GridMap::getHeightFromUint16(float x, float y) const
{
if (!m_uint16_V8 || !m_uint16_V9)
return m_gridHeight;
x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
int x_int = (int)x;
int y_int = (int)y;
x -= x_int;
y -= y_int;
x_int &= (MAP_RESOLUTION - 1);
y_int &= (MAP_RESOLUTION - 1);
int32 a, b, c;
uint16 *V9_h1_ptr = &m_uint16_V9[x_int*128 + x_int + y_int];
if (x+y < 1)
{
if (x > y)
{
// 1 triangle (h1, h2, h5 points)
int32 h1 = V9_h1_ptr[ 0];
int32 h2 = V9_h1_ptr[129];
int32 h5 = 2 * m_uint16_V8[x_int*128 + y_int];
a = h2-h1;
b = h5-h1-h2;
c = h1;
}
else
{
// 2 triangle (h1, h3, h5 points)
int32 h1 = V9_h1_ptr[0];
int32 h3 = V9_h1_ptr[1];
int32 h5 = 2 * m_uint16_V8[x_int*128 + y_int];
a = h5 - h1 - h3;
b = h3 - h1;
c = h1;
}
}
else
{
if (x > y)
{
// 3 triangle (h2, h4, h5 points)
int32 h2 = V9_h1_ptr[129];
int32 h4 = V9_h1_ptr[130];
int32 h5 = 2 * m_uint16_V8[x_int*128 + y_int];
a = h2 + h4 - h5;
b = h4 - h2;
c = h5 - h4;
}
else
{
// 4 triangle (h3, h4, h5 points)
int32 h3 = V9_h1_ptr[ 1];
int32 h4 = V9_h1_ptr[130];
int32 h5 = 2 * m_uint16_V8[x_int*128 + y_int];
a = h4 - h3;
b = h3 + h4 - h5;
c = h5 - h4;
}
}
// Calculate height
return (float)((a * x) + (b * y) + c)*m_gridIntHeightMultiplier + m_gridHeight;
}
float GridMap::getLiquidLevel(float x, float y)
{
if (!m_liquid_map)
return m_liquidLevel;
x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
int cx_int = ((int)x & (MAP_RESOLUTION-1)) - m_liquid_offY;
int cy_int = ((int)y & (MAP_RESOLUTION-1)) - m_liquid_offX;
if (cx_int < 0 || cx_int >=m_liquid_height)
return INVALID_HEIGHT;
if (cy_int < 0 || cy_int >=m_liquid_width )
return INVALID_HEIGHT;
return m_liquid_map[cx_int*m_liquid_width + cy_int];
}
uint8 GridMap::getTerrainType(float x, float y)
{
if (!m_liquid_type)
return (uint8)m_liquidType;
x = 16 * (32 - x/SIZE_OF_GRIDS);
y = 16 * (32 - y/SIZE_OF_GRIDS);
int lx = (int)x & 15;
int ly = (int)y & 15;
return m_liquid_type[lx*16 + ly];
}
// Get water state on map
GridMapLiquidStatus GridMap::getLiquidStatus(float x, float y, float z, uint8 ReqLiquidType, GridMapLiquidData *data)
{
// Check water type (if no water return)
if (!m_liquid_type && !m_liquidType)
return LIQUID_MAP_NO_WATER;
// Get cell
float cx = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
float cy = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
int x_int = (int)cx & (MAP_RESOLUTION-1);
int y_int = (int)cy & (MAP_RESOLUTION-1);
// Check water type in cell
uint8 type = m_liquid_type ? m_liquid_type[(x_int>>3)*16 + (y_int>>3)] : m_liquidType;
if (type == 0)
return LIQUID_MAP_NO_WATER;
// Check req liquid type mask
if (ReqLiquidType && !(ReqLiquidType&type))
return LIQUID_MAP_NO_WATER;
// Check water level:
// Check water height map
int lx_int = x_int - m_liquid_offY;
if (lx_int < 0 || lx_int >=m_liquid_height)
return LIQUID_MAP_NO_WATER;
int ly_int = y_int - m_liquid_offX;
if (ly_int < 0 || ly_int >=m_liquid_width )
return LIQUID_MAP_NO_WATER;
// Get water level
float liquid_level = m_liquid_map ? m_liquid_map[lx_int*m_liquid_width + ly_int] : m_liquidLevel;
// Get ground level (sub 0.2 for fix some errors)
float ground_level = getHeight(x, y);
// Check water level and ground level
if (liquid_level < ground_level || z < ground_level - 2)
return LIQUID_MAP_NO_WATER;
// All ok in water -> store data
if (data)
{
data->type = type;
data->level = liquid_level;
data->depth_level = ground_level;
}
// For speed check as int values
int delta = int((liquid_level - z) * 10);
// Get position delta
if (delta > 20) // Under water
return LIQUID_MAP_UNDER_WATER;
if (delta > 0 ) // In water
return LIQUID_MAP_IN_WATER;
if (delta > -1) // Walk on water
return LIQUID_MAP_WATER_WALK;
// Above water
return LIQUID_MAP_ABOVE_WATER;
}
bool GridMap::ExistMap(uint32 mapid,int gx,int gy)
{
int len = sWorld.GetDataPath().length()+strlen("maps/%03u%02u%02u.map")+1;
char* tmp = new char[len];
snprintf(tmp, len, (char *)(sWorld.GetDataPath()+"maps/%03u%02u%02u.map").c_str(),mapid,gx,gy);
FILE *pf=fopen(tmp,"rb");
if(!pf)
{
sLog.outError("Check existing of map file '%s': not exist!",tmp);
delete[] tmp;
return false;
}
GridMapFileHeader header;
fread(&header, sizeof(header), 1, pf);
if (header.mapMagic != *((uint32 const*)(MAP_MAGIC)) ||
header.versionMagic != *((uint32 const*)(MAP_VERSION_MAGIC)) ||
!IsAcceptableClientBuild(header.buildMagic))
{
sLog.outError("Map file '%s' is non-compatible version (outdated?). Please, create new using ad.exe program.",tmp);
delete [] tmp;
fclose(pf); //close file before return
return false;
}
delete [] tmp;
fclose(pf);
return true;
}
bool GridMap::ExistVMap(uint32 mapid,int gx,int gy)
{
if(VMAP::IVMapManager* vmgr = VMAP::VMapFactory::createOrGetVMapManager())
{
if(vmgr->isMapLoadingEnabled())
{
// x and y are swapped !! => fixed now
bool exists = vmgr->existsMap((sWorld.GetDataPath()+ "vmaps").c_str(), mapid, gx,gy);
if(!exists)
{
std::string name = vmgr->getDirFileName(mapid,gx,gy);
sLog.outError("VMap file '%s' is missing or point to wrong version vmap file, redo vmaps with latest vmap_assembler.exe program", (sWorld.GetDataPath()+"vmaps/"+name).c_str());
return false;
}
}
}
return true;
}
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