viiper.h

   1 #ifndef __VIIPER_H__
   2 #define __VIIPER_H__
   3
   4 #define SHORTHELP "%s [OPTIONS] [FIELDSIZE]\n"
   5 #define LONGHELP \
   6         "OPTIONS:\n" \
   7         "    -h(elp)\n" \
   8         "FIELDSIZE:\n" \
   9         "    WxH (width 'x' height)\n" \
  10         "    defaults to 30x20\n" \
  11         "\n" \
  12         "Keybindings:\n" \
  13         "    hjkl: move left/down/up/right\n" \
  14         "    p:    pause / unpause\n" \
  15         "    r:    start a new game\n" \
  16         "    q:    quit\n"
  17
  18 struct snake {
  19         int r; /* row */
  20         int c; /* column */
  21         struct snake* next; /* points to tail */
  22 };
  23 struct item {
  24         int r; /* row */
  25         int c; /* column */
  26         int t; /* type */
  27         int v; /* value */ //TODO: make type only differentiate between food/bonus/etc, and use value (so we can randomly select one of each)
  28         int s; /* spawn time (for bonus) */
  29         struct item* prev;
  30         struct item* next;
  31 };
  32 enum direction {
  33         NONE,
  34         NORTH,
  35         EAST,
  36         SOUTH,
  37         WEST,
  38 };
  39 enum item_type {
  40         NO_ITEM,
  41         FOOD_5,
  42         FOOD_10,
  43         FOOD_20,
  44         BONUS,
  45
  46         NUM_ITEMS,
  47 };
  48
  49 int viiper(void);
  50 void snake_advance (void);
  51 void spawn_item (int type);
  52 void consume_item (struct item* i);
  53 void show_playfield (void);
  54 void snake_append (struct snake* s, int row, int col);
  55 void init_snake();
  56 void quit (void);
  57 int getctrlseq (void);
  58 void move_ph (int line, int col);
  59 void clamp_fieldsize (void);
  60 void timer_setup (int enable);
  61 void signal_setup (void);
  62 void signal_handler (int signum);
  63 void screen_setup (int enable);
  64 void raw_mode(int enable);
  65 enum event {
  66         /* for getctrlseq() */
  67         CTRSEQ_NULL    =  0,
  68         CTRSEQ_EOF     = -1,
  69         CTRSEQ_INVALID = -2,
  70         CTRSEQ_MOUSE   = -3,
  71         CTRSEQ_CURSOR_LEFT  = -7,
  72         CTRSEQ_CURSOR_DOWN  = -8,
  73         CTRSEQ_CURSOR_UP    = -9,
  74         CTRSEQ_CURSOR_RIGHT = -10,
  75 };
  76
  77 #endif