tetris.h

   1 /* Tetrinet for Linux, by Andrew Church <achurch@achurch.org>
   2  * This program is public domain.
   3  *
   4  * Tetris constants and routine declarations.
   5  */
   6
   7 #ifndef TETRIS_H
   8 #define TETRIS_H
   9
  10 /*************************************************************************/
  11
  12 #define PIECE_BAR       0       /* Straight bar */
  13 #define PIECE_SQUARE    1       /* Square block */
  14 #define PIECE_L_REVERSE 2       /* Reversed L block */
  15 #define PIECE_L         3       /* L block */
  16 #define PIECE_Z         4       /* Z block */
  17 #define PIECE_S         5       /* S block */
  18 #define PIECE_T         6       /* T block */
  19
  20 #define SPECIAL_A       0       /* Add line */
  21 #define SPECIAL_C       1       /* Clear line */
  22 #define SPECIAL_N       2       /* Nuke field */
  23 #define SPECIAL_R       3       /* Clear random blocks */
  24 #define SPECIAL_S       4       /* Switch fields */
  25 #define SPECIAL_B       5       /* Clear special blocks */
  26 #define SPECIAL_G       6       /* Block gravity */
  27 #define SPECIAL_Q       7       /* Blockquake */
  28 #define SPECIAL_O       8       /* Block bomb */
  29
  30 /*************************************************************************/
  31
  32 #define MAX_SPECIALS    64
  33
  34 extern int piecefreq[7], specialfreq[9];
  35 extern int old_mode;
  36 extern int initial_level, lines_per_level, level_inc, level_average;
  37 extern int special_lines, special_count, special_capacity;
  38 extern Field fields[6];
  39 extern int levels[6];
  40 extern int lines;
  41 extern signed char specials[MAX_SPECIALS];
  42 extern int next_piece;
  43 extern int current_x, current_y;
  44
  45
  46 typedef struct {
  47     int hot_x, hot_y;   /* Hotspot coordinates */
  48     int top, left;      /* Top-left coordinates relative to hotspot */
  49     int bottom, right;  /* Bottom-right coordinates relative to hotspot */
  50     char shape[4][4];   /* Shape data for the piece */
  51 } PieceData;
  52
  53 PieceData piecedata[7][4];
  54
  55 extern int current_piece, current_rotation;
  56
  57
  58 extern void init_shapes(void);
  59 extern int get_shape(int piece, int rotation, char buf[4][4]);
  60
  61 extern void new_game(void);
  62
  63 extern void new_piece(void);
  64 extern void step_down(void);
  65 extern void do_special(const char *type, int from, int to);
  66
  67 extern int tetris_timeout(void);
  68 extern void tetris_timeout_action(void);
  69 extern void tetris_input(int c);
  70
  71 /*************************************************************************/
  72
  73 #endif  /* TETRIS_H */