WebSVN – HelenOS – Diff – /trunk/uspace/app/tetris/tetris.h

+ *
  *  @(#)tetris.h    8.1 (Berkeley) 5/31/93
  */
 /** @addtogroup tetris
  * @{
  */
 /** @file
  */
 /*
  * columns of rows 21 and 22.  Rows 0 and 22 exist as boundary areas
  * so that regions `outside' the visible area can be examined without
  * worrying about addressing problems.
  */
-    /* the board */
+/* The board */
-#define B_COLS  12
+#define B_COLS  12
-#define B_ROWS  23
+#define B_ROWS  23
-#define B_SIZE  (B_ROWS * B_COLS)
+#define B_SIZE  (B_ROWS * B_COLS)
-typedef unsigned char cell;
+typedef uint32_t cell;
-extern cell board[B_SIZE];  /* 1 => occupied, 0 => empty */
+extern cell board[B_SIZE];  /* 1 => occupied, 0 => empty */
-    /* the displayed area (rows) */
+/* The displayed area (rows) */
-#define D_FIRST 1
+#define D_FIRST  1
-#define D_LAST  22
+#define D_LAST   22
-    /* the active area (rows) */
+/* The active area (rows) */
-#define A_FIRST 1
+#define A_FIRST  1
-#define A_LAST  21
+#define A_LAST   21
 /*
  * Minimum display size.
  */
-#define MINROWS 23
+#define MINROWS  23
-#define MINCOLS 40
+#define MINCOLS  40
-extern int  Rows, Cols; /* current screen size */
+/* Current screen size */
+extern int Rows;
+extern int Cols;
 /*
  * Translations from board coordinates to display coordinates.
  * As with board coordinates, display coordiates are zero origin.
  */
-#define RTOD(x) ((x) - 1)
+#define RTOD(x)  ((x) - 1)
-#define CTOD(x) ((x) * 2 + (((Cols - 2 * B_COLS) >> 1) - 1))
+#define CTOD(x)  ((x) * 2 + (((Cols - 2 * B_COLS) >> 1) - 1))
 /*
  * A `shape' is the fundamental thing that makes up the game.  There
  * are 7 basic shapes, each consisting of four `blots':
+ *
- *  X.X   X.X       X.X
+ *      X.X       X.X           X.X
- *    X.X   X.X X.X.X   X.X X.X.X   X.X.X   X.X.X.X
+ *        X.X   X.X     X.X.X   X.X     X.X.X   X.X.X   X.X.X.X
- *            X     X       X
+ *                        X             X           X
+ *
- *    0   1   2   3   4   5   6
+ *          0     1       2       3       4       5       6
+ *
  * Except for 3 and 6, the center of each shape is one of the blots.
- * This blot is designated (0,0).  The other three blots can then be
+ * This blot is designated (0, 0).  The other three blots can then be
  * described as offsets from the center.  Shape 3 is the same under
  * rotation, so its center is effectively irrelevant; it has been chosen
  * so that it `sticks out' upward and leftward.  Except for shape 6,
- * all the blots are contained in a box going from (-1,-1) to (+1,+1);
+ * all the blots are contained in a box going from (-1, -1) to (+1, +1);
  * shape 6's center `wobbles' as it rotates, so that while it `sticks out'
  * rightward, its rotation---a vertical line---`sticks out' downward.
- * The containment box has to include the offset (2,0), making the overall
+ * The containment box has to include the offset (2, 0), making the overall
- * containment box range from offset (-1,-1) to (+2,+1).  (This is why
+ * containment box range from offset (-1, -1) to (+2, +1).  (This is why
  * there is only one row above, but two rows below, the display area.)
+ *
  * The game works by choosing one of these shapes at random and putting
  * its center at the middle of the first display row (row 1, column 5).
  * The shape is moved steadily downward until it collides with something:
  * either  another shape, or the bottom of the board.  When the shape can
  * no longer be moved downwards, it is merged into the current board.
  * At this time, any completely filled rows are elided, and blots above
  * these rows move down to make more room.  A new random shape is again
  * introduced at the top of the board, and the whole process repeats.
- * The game ends when the new shape will not fit at (1,5).
+ * The game ends when the new shape will not fit at (1, 5).
+ *
  * While the shapes are falling, the user can rotate them counterclockwise
  * 90 degrees (in addition to moving them left or right), provided that the
  * rotation puts the blots in empty spaces.  The table of shapes is set up
  * so that each shape contains the index of the new shape obtained by
  * 1, 2, or 4 rotations total; the first 7 entries in the table represent
  * the primary shapes, and the remaining 12 represent their various
  * rotated forms.
  */
 struct shape {
-    int rot;    /* index of rotated version of this shape */
+    int rot;     /* index of rotated version of this shape */
-    int rotc;   /* -- " -- in classic version  */
+    int rotc;    /* -- " -- in classic version  */
-    int off[3]; /* offsets to other blots if center is at (0,0) */
+    int off[3];  /* offsets to other blots if center is at (0,0) */
+    uint32_t color;
 };
 extern const struct shape shapes[];
 extern const struct shape *curshape;
  * Each time the fall-rate is used, it is decreased a little bit,
  * depending on its current value, via the `faster' macro below.
  * The value eventually reaches a limit, and things stop going faster,
  * but by then the game is utterly impossible.
  */
-extern long fallrate;   /* less than 1 million; smaller => faster */
+extern long fallrate;  /* less than 1 million; smaller => faster */
-#define faster() (fallrate -= fallrate / 3000)
+#define faster()  (fallrate -= fallrate / 3000)
 /*
  * Game level must be between 1 and 9.  This controls the initial fall rate
  * and affects scoring.
  */
-#define MINLEVEL    1
+#define MINLEVEL  1
-#define MAXLEVEL    9
+#define MAXLEVEL  9
 /*
  * Scoring is as follows:
+ *
  * When the shape comes to rest, and is integrated into the board,
  * we find that it is at rest and integrate it---until then, it can
  * still be moved or rotated).
+ *
  * If previewing has been turned on, the score is multiplied by PRE_PENALTY.
  */
-#define PRE_PENALTY 0.75
+#define PRE_PENALTY  0.75
+extern int score;  /* The obvious thing */
+extern char key_msg[100];
-extern int  score;      /* the obvious thing */
+extern int showpreview;
-//extern gid_t  gid, egid;
+extern int classic;
-extern char key_msg[100];
-extern int  showpreview;
-extern int  classic;
-int fits_in(const struct shape *, int);
+extern int fits_in(const struct shape *, int);
-void    place(const struct shape *, int, int);
+extern void place(const struct shape *, int, int);
-void    stop(char *);
+extern void stop(char *);
 /** @}
  */

Subversion Repositories HelenOS

(root)/trunk/uspace/app/tetris/tetris.h – Rev 2479 → 4515