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         "    -s(peed) N\n" \
   8         "    -h(elp)\n" \
   9         "    -d(ec charset)\n" \
  10         "FIELDSIZE:\n" \
  11         "    WxH (width 'x' height)\n" \
  12         "    defaults to 30x20\n" \
  13         "\n" \
  14         "Keybindings:\n" \
  15         "    hjkl: move left/down/up/right\n" \
  16         "    p:    pause / unpause\n" \
  17         "    r:    start a new game\n" \
  18         "    q:    quit\n"
  19
  20 struct snake {
  21         int r; /* row */
  22         int c; /* column */
  23         struct snake* next; /* points to tail */
  24 };
  25 struct item {
  26         int r; /* row */
  27         int c; /* column */
  28         int t; /* type */
  29         int v; /* value */ //TODO: make type only differentiate between food/bonus/etc, and use value (so we can randomly select one of each)
  30         int s; /* spawn time (for bonus) */
  31         struct item* prev;
  32         struct item* next;
  33 };
  34 struct directions {
  35         int d; /* direction */
  36         struct directions* next;
  37 };
  38 enum direction {
  39         NONE,
  40         NORTH,
  41         EAST,
  42         SOUTH,
  43         WEST,
  44 };
  45 enum item_type {
  46         NO_ITEM,
  47         FOOD,
  48         BONUS,
  49 };
  50 enum food_value {
  51         FOOD_5,
  52         FOOD_10,
  53         FOOD_20,
  54         NUM_FOODS,
  55 };
  56 enum bonus_value {
  57         NUM_BONI,
  58 };
  59
  60 int viiper(void);
  61 void snake_advance (void);
  62 void spawn_item (int type, int value);
  63 void consume_item (struct item* i);
  64 void show_playfield (void);
  65 void snake_append (struct snake** s, int row, int col);
  66 void init_snake();
  67 void quit (void);
  68 int getctrlseq (void);
  69 void append_movement (int d);
  70 int get_movement (void);
  71 void move_ph (int line, int col);
  72 void clamp_fieldsize (void);
  73 void timer_setup (int enable);
  74 void signal_setup (void);
  75 void signal_handler (int signum);
  76 void screen_setup (int enable);
  77 void raw_mode(int enable);
  78 enum event {
  79         /* for getctrlseq() */
  80         CTRSEQ_NULL    =  0,
  81         CTRSEQ_EOF     = -1,
  82         CTRSEQ_INVALID = -2,
  83         CTRSEQ_MOUSE   = -3,
  84         CTRSEQ_CURSOR_LEFT  = -7,
  85         CTRSEQ_CURSOR_DOWN  = -8,
  86         CTRSEQ_CURSOR_UP    = -9,
  87         CTRSEQ_CURSOR_RIGHT = -10,
  88 };
  89
  90 #endif