backend.h

   1 /*
   2    Cantaveria - action adventure platform game
   3    Copyright (C) 2009  Evan Rinehart
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License
   7    as published by the Free Software Foundation; either version 2
   8    of the License, or (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to
  17
  18    The Free Software Foundation, Inc.
  19    51 Franklin Street, Fifth Floor
  20    Boston, MA  02110-1301, USA
  21 */
  22
  23 enum {
  24 ESCAPE_KEY,
  25 PAUSE_KEY,
  26
  27 LEFT_KEY,
  28 RIGHT_KEY,
  29 UP_KEY,
  30 DOWN_KEY,
  31
  32 FIRE_KEY,
  33 JUMP_KEY,
  34 INVENTORY_KEY,
  35 SPECIAL_KEY,
  36
  37 L_KEY,
  38 R_KEY,
  39 START_KEY,
  40 SELECT_KEY
  41 };
  42
  43 enum{
  44 FIRE_BUTTON,
  45 JUMP_BUTTON,
  46 INVENTORY_BUTTON,
  47 SPECIAL_BUTTON,
  48 L_BUTTON,
  49 R_BUTTON,
  50 START_BUTTON,
  51 SELECT_BUTTON
  52 };
  53
  54 enum{
  55 KEYUP,
  56 KEYDOWN,
  57 JOYMOVEX,
  58 JOYMOVEY,
  59 JOYPRESS,
  60 JOYRELEASE,
  61 FOOBAR
  62 };
  63
  64 #define VERSION_MAJOR 0
  65 #define VERSION_MINOR 0
  66
  67 #define JOY_MAX 32767
  68 #define JOY_MIN -32768
  69
  70 #define MAX_PLAYERS 6
  71
  72 #define dt 10
  73 #define DELAY_AMOUNT 1
  74
  75 #define SCREEN_W 320
  76 #define SCREEN_H 240
  77
  78 #define MAX_GFX 256
  79
  80
  81 #define COLOR_KEY 0x000000
  82
  83 #define SAMPLE_RATE 44100
  84 #define BUFFER_SIZE 1024
  85
  86 #define RANDOM_SEED 57
  87
  88
  89 void backend_init(int argc, char* argv[]);
  90 void backend_quit();
  91
  92 void input(); /* pump event system */
  93 void draw();  /* draw all active graphics */
  94
  95 int since(); /* ms since last time since() was called */
  96 void delay(int ms); /* wait ms ms */
  97
  98 void update_video();
  99 void clear_video();
 100
 101 /* input */
 102 int keynum(int name); /* get key number for key name */
 103 int butnum(int joy, int name); /* get button number for button name */
 104 void control(int type, int par1, int par2); /* automatic control */
 105
 106 /* gfx control */
 107 int load_gfx(char* filename);
 108 void draw_gfx(int gfxid, int x, int y, int X, int Y, int W, int H);
 109 int gfx_width(int gfxid);
 110 int gfx_height(int gfxid);
 111
 112 /* sound control */
 113 int load_sound(char* filename);
 114 void play_sound(int id);
 115 int load_music(char* filename);
 116 int play_music(int id);
 117
 118
 119