00001 /* 00002 * Copyright (C) 2000-2001 The Exult Team 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 #ifndef INCL_FRAMESEQ 00020 #define INCL_FRAMESEQ 1 00021 00022 /* 00023 * A sequence of frames. Frame 0 is the resting state. 00024 */ 00025 class Frames_sequence 00026 { 00027 unsigned char *frames; 00028 int num_frames; 00029 public: 00030 Frames_sequence(int cnt, unsigned char *f); 00031 ~Frames_sequence() 00032 { delete [] frames; } 00033 // Get resting frame. 00034 unsigned char get_resting() const 00035 { return frames[0]; } 00036 // Get next frame. Call 00037 // with index = 0 for first one. 00038 unsigned char get_next(int& index) const 00039 { 00040 if (++index >= num_frames) 00041 index = 1; 00042 return frames[index]; 00043 } 00044 void decrement(int& index) const 00045 { if (--index <= 0) index = num_frames - 1; } 00046 // Find frame, masking off rotation. 00047 // Rets. 0 if not found. 00048 int find_unrotated(unsigned char frame) 00049 { 00050 for (int i = num_frames - 1; i > 0; i--) 00051 if (((frame ^ frames[i])&0xf) == 0) 00052 return i; 00053 return 0; 00054 } 00055 }; 00056 #endif
1.5.1