vmapmanager.cpp.svn-base

絲路server源碼 Silk Road server source

/* 
 * Copyright (C) 2005,2006,2007 MaNGOS <http://www.mangosproject.org/>
 *
 * 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 "VMapManager.h"
#include "VMapDefinitions.h"

namespace VMAP
{

    //=========================================================

    VMapManager::VMapManager()
    {
        iCommandLogger.setFileName("vmapcmd.log");
        iCommandLogger.setResetFile();
    }

    //=========================================================

    VMapManager::~VMapManager(void)
    {
        Array<unsigned int > keyArray = iInstanceMapTrees.getKeys();
        for(int i=0;i<keyArray.size(); ++i)
        {
            delete iInstanceMapTrees.get(keyArray[i]);
            iInstanceMapTrees.remove(keyArray[i]);
        }
    }

    //=========================================================

    Vector3 VMapManager::convertPositionToInternalRep(float x, float y, float z) const
    {
        float pos[3];
        pos[0] = y;
        pos[1] = z;
        pos[2] = x;
        double full = 64.0*533.33333333;
        double mid = full/2.0;
        pos[0] = full- (pos[0] + mid);
        pos[2] = full- (pos[2] + mid);

        return(Vector3(pos));
    }

    //=========================================================

    Vector3 VMapManager::convertPositionToMangosRep(float x, float y, float z) const
    {
        float pos[3];
        pos[0] = z;
        pos[1] = x;
        pos[2] = y;
        double full = 64.0*533.33333333;
        double mid = full/2.0;
        pos[0] = -((mid+pos[0])-full);
        pos[1] = -((mid+pos[1])-full);

        return(Vector3(pos));
    }
    //=========================================================

    std::string VMapManager::getDirFileName(unsigned int pMapId, int x, int y) const
    {
        char name[FILENAMEBUFFER_SIZE];

        sprintf(name, "%03u_%d_%d%s",pMapId, x, y, DIR_FILENAME_EXTENSION);
        return(std::string(name));
    }

    //=========================================================
    std::string VMapManager::getDirFileName(unsigned int pMapId) const
    {
        char name[FILENAMEBUFFER_SIZE];

        sprintf(name, "%03d%s",pMapId, DIR_FILENAME_EXTENSION);
        return(std::string(name));
    }
    //=========================================================
    // remote last return or LF
    void chomp(std::string& str)
    {
        while(str.length() >0)
        {
            char lc = str[str.length()-1];
            if(lc == '\r' || lc == '\n')
            {
                str = str.substr(0,str.length()-1);
            }
            else
            {
                break;
            }
        }
    }
    //=========================================================

    void chompAndTrim(std::string& str)
    {
        while(str.length() >0)
        {
            char lc = str[str.length()-1];
            if(lc == '\r' || lc == '\n' || lc == ' ' || lc == '"' || lc == '\'')
            {
                str = str.substr(0,str.length()-1);
            }
            else
            {
                break;
            }
        }
        while(str.length() >0)
        {
            char lc = str[0];
            if(lc == ' ' || lc == '"' || lc == '\'')
            {
                str = str.substr(1,str.length()-1);
            }
            else
            {
                break;
            }
        }
    }

    //=========================================================
    // result false, if no more id are found

    bool getNextMapId(const std::string& pString, unsigned int& pStartPos, unsigned int& pId)
    {
        bool result = false;
        unsigned int i;
        for(i=pStartPos;i<pString.size(); ++i)
        {
            if(pString[i] == ',')
            {
                break;
            }
        }
        if(i>pStartPos)
        {
            std::string idString = pString.substr(pStartPos, i-pStartPos);
            pStartPos = i+1;
            chompAndTrim(idString);
            pId = atoi(idString.c_str());
            result = true;
        }
        return(result);
    }

    //=========================================================
    /**
    Block maps from being used.
    parameter: String of map ids. Delimiter = ","
    e.g.: "0,1,590"
    */

    void VMapManager::preventMapsFromBeingUsed(const char* pMapIdString)
    {
        if(pMapIdString != NULL)
        {
            unsigned int pos =0;
            unsigned int id;
            std::string confString(pMapIdString);
            chompAndTrim(confString);
            while(getNextMapId(confString, pos, id))
            {
                iIgnoreMapIds.set(id, true);
            }
        }
    }

    //=========================================================

    int VMapManager::loadMap(const char* pBasePath, unsigned int pMapId, int x, int y)
    {
        int result = VMAP_LOAD_RESULT_IGNORED;
        if(isMapLoadingEnabled() && !iIgnoreMapIds.containsKey(pMapId))
        {
            bool loaded = _loadMap(pBasePath, pMapId, x, y, false);
            if(!loaded)
            {
                // if we can't load the map it might be splitted into tiles. Try that one and store the result
                loaded = _loadMap(pBasePath, pMapId, x, y, true);
                if(loaded)
                {
                    iMapsSplitIntoTiles.set(pMapId, true);
                }
            }
            if(loaded)
            {
                result = VMAP_LOAD_RESULT_OK;
                // just for debugging
                Command c = Command();
                c.fillLoadTileCmd(x, y, pMapId);
                iCommandLogger.appendCmd(c);
            }
            else
            {
                result = VMAP_LOAD_RESULT_ERROR;
            }
        }
        return result;
    }

    //=========================================================
    // load one tile (internal use only)

    bool VMapManager::_loadMap(const char* pBasePath, unsigned int pMapId, int x, int y, bool pForceTileLoad)
    {
        bool result = false;
        std::string dirFileName;
        if(pForceTileLoad || iMapsSplitIntoTiles.containsKey(pMapId))
        {
            dirFileName = getDirFileName(pMapId,x,y);
        }
        else
        {
            dirFileName = getDirFileName(pMapId);
        }
        MapTree* instanceTree;
        if(!iInstanceMapTrees.containsKey(pMapId))
        {
            instanceTree = new MapTree(pBasePath);
            iInstanceMapTrees.set(pMapId, instanceTree);
        }
        else
            instanceTree = iInstanceMapTrees.get(pMapId);

        unsigned int mapTileIdent = MAP_TILE_IDENT(x,y);
        result = instanceTree->loadMap(dirFileName, mapTileIdent);
        if(!result)                                         // remove on fail
        {
            if(instanceTree->size() == 0)
            {
                iInstanceMapTrees.remove(pMapId);
                delete instanceTree;
            }
        }
        return(result);
    }

    //=========================================================

    bool VMapManager::_existsMap(const std::string& pBasePath, unsigned int pMapId, int x, int y, bool pForceTileLoad)
    {
        bool result = false;
        std::string dirFileName;
        if(pForceTileLoad || iMapsSplitIntoTiles.containsKey(pMapId))
        {
            dirFileName = getDirFileName(pMapId,x,y);
        }
        else
        {
            dirFileName = getDirFileName(pMapId);
        }
        size_t len = pBasePath.length() + dirFileName.length();
        char *filenameBuffer = new char[len+1];
        sprintf(filenameBuffer, "%s%s", pBasePath.c_str(), dirFileName.c_str());
        FILE* df = fopen(filenameBuffer, "rb");
        if(df)
        {
            fclose(df);
            result = true;
        }
        delete[] filenameBuffer;
        return result;
    }

    //=========================================================

    bool VMapManager::existsMap(const char* pBasePath, unsigned int pMapId, int x, int y)
    {
        std::string basePath = std::string(pBasePath);
        if(basePath.length() > 0 && (basePath[basePath.length()-1] != '/' || basePath[basePath.length()-1] != '\\'))
        {
            basePath.append("/");
        }
        bool found = _existsMap(basePath, pMapId, x, y, false);
        if(!found)
        {
            // if we can't load the map it might be splitted into tiles. Try that one and store the result
            found = _existsMap(basePath, pMapId, x, y, true);
            if(found)
            {
                iMapsSplitIntoTiles.set(pMapId, true);
            }
        }
        return found;
    }

    //=========================================================

    void VMapManager::unloadMap(unsigned int pMapId, int x, int y)
    {
        _unloadMap(pMapId, x, y);

        Command c = Command();
        c.fillUnloadTileCmd(pMapId, x,y);
        iCommandLogger.appendCmd(c);
    }

    //=========================================================

    void VMapManager::_unloadMap(unsigned int  pMapId, int x, int y)
    {
        if(iInstanceMapTrees.containsKey(pMapId))
        {
            MapTree* instanceTree = iInstanceMapTrees.get(pMapId);
            std::string dirFileName;
            if(iMapsSplitIntoTiles.containsKey(pMapId))
            {
                dirFileName = getDirFileName(pMapId,x,y);
            }
            else
            {
                dirFileName = getDirFileName(pMapId);
            }
            unsigned int mapTileIdent = MAP_TILE_IDENT(x,y);
            instanceTree->unloadMap(dirFileName, mapTileIdent);
            if(instanceTree->size() == 0)
            {
                iInstanceMapTrees.remove(pMapId);
                delete instanceTree;
            }
        }
    }

    //=========================================================

    void VMapManager::unloadMap(unsigned int pMapId)
    {
        if(iInstanceMapTrees.containsKey(pMapId))
        {
            MapTree* instanceTree = iInstanceMapTrees.get(pMapId);
            std::string dirFileName = getDirFileName(pMapId);
            instanceTree->unloadMap(dirFileName, 0, true);
            if(instanceTree->size() == 0)
            {
                iInstanceMapTrees.remove(pMapId);
                delete instanceTree;
            }
            Command c = Command();
            c.fillUnloadTileCmd(pMapId);
            iCommandLogger.appendCmd(c);
        }
    }
    //==========================================================

    bool VMapManager::isInLineOfSight(unsigned int pMapId, float x1, float y1, float z1, float x2, float y2, float z2)
    {
        bool result = true;
        if(isLineOfSightCalcEnabled() && iInstanceMapTrees.containsKey(pMapId))
        {
            Vector3 pos1 = convertPositionToInternalRep(x1,y1,z1);
            Vector3 pos2 = convertPositionToInternalRep(x2,y2,z2);
            if(pos1 != pos2)
            {
                MapTree* mapTree = iInstanceMapTrees.get(pMapId);
                result = mapTree->isInLineOfSight(pos1, pos2);
                Command c = Command();
                                                            // save the orig vectors