maptransform.h
00001 /* 00002 * Player - One Hell of a Robot Server 00003 * Copyright (C) 2004 Brian Gerkey gerkey@stanford.edu 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation; either version 2 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00018 * 00019 */ 00020 00021 /* 00022 * $Id: maptransform.h 7305 2009-01-27 01:18:55Z gbiggs $ 00023 * 00024 * Base class for map transform drivers, simply reimplement the transform method 00025 * with your trasformation function. See MapScale for example 00026 */ 00027 00028 #ifndef _MAPTRANSFORM_H_ 00029 #define _MAPTRANSFORM_H_ 00030 00031 #include <sys/types.h> // required by Darwin 00032 #include <stdlib.h> 00033 #include <string.h> 00034 #include <math.h> 00035 00036 #include <libplayercore/playercore.h> 00037 00038 // compute linear index for given map coords 00039 #define MAP_IDX(mf, i, j) ((mf.width) * (j) + (i)) 00040 00041 // check that given coords are valid (i.e., on the map) 00042 #define MAP_VALID(mf, i, j) ((i >= 0) && (i < mf.width) && (j >= 0) && (j < mf.height)) 00043 00044 class MapTransform : public Driver 00045 { 00046 protected: 00047 player_map_info_t source_map; 00048 player_devaddr_t source_map_addr; 00049 char* source_data; 00050 00051 player_map_info_t new_map; 00052 char* new_data; 00053 00054 // get the map from the underlying map device 00055 int GetMap(); 00056 // interpolate the map 00057 virtual int Transform() = 0; 00058 00059 public: 00060 MapTransform(ConfigFile* cf, int section); 00061 virtual ~MapTransform(); 00062 00063 // MessageHandler 00064 public: virtual int ProcessMessage(QueuePointer &resp_queue, 00065 player_msghdr * hdr, 00066 void * data); 00067 00068 int Setup(); 00069 int Shutdown(); 00070 }; 00071 00072 #endif