1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef SKY_GRID_H 24 #define SKY_GRID_H 25 26 27 #include "common/scummsys.h" 28 #include "skydefs.h" 29 30 namespace Sky { 31 32 struct Compact; 33 class Disk; 34 class SkyCompact; 35 36 class Grid { 37 public: 38 Grid(Disk *pDisk, SkyCompact *skyCompact); 39 ~Grid(); 40 41 // grid.asm routines 42 void loadGrids(); 43 void removeObjectFromWalk(Compact *cpt); 44 void objectToWalk(Compact *cpt); 45 46 // function.asm 47 // note that this routine does the same as objectToWalk, it just doesn't get 48 // its x, y, width parameters from cpt. 49 void plotGrid(uint32 x, uint32 y, uint32 width, Compact *cpt); 50 // same here, it's basically the same as removeObjectFromWalk 51 void removeGrid(uint32 x, uint32 y, uint32 width, Compact *cpt); 52 uint8 *giveGrid(uint32 pScreen); 53 54 private: 55 void objectToWalk(uint8 gridIdx, uint32 bitNum, uint32 width); 56 void removeObjectFromWalk(uint8 gridIdx, uint32 bitNum, uint32 width); 57 bool getGridValues(Compact *cpt, uint8 *resGrid, uint32 *resBitNum, uint32 *resWidth); 58 bool getGridValues(uint32 x, uint32 y, uint32 width, Compact *cpt, uint8 *resGrid, uint32 *resBitNum, uint32 *resWidth); 59 60 static int8 _gridConvertTable[]; 61 uint8 *_gameGrids[TOT_NO_GRIDS]; 62 Disk *_skyDisk; 63 SkyCompact *_skyCompact; 64 }; 65 66 } // End of namespace Sky 67 68 #endif //SKYGRID_H 69