57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#ifndef _TETRIS_H_
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#define _TETRIS_H_
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#include <stdint.h>
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#include "main.h"
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#define NUM_SHAPES 7
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#define NUM_LINES 20 /* 16 visible + 4 to spawn new stones */
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#define FRAMES 60
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typedef uint8_t board_t[NUM_LINES];
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typedef uint8_t clipping_t[4];
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typedef struct {
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stone_t stn;
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board_t brd;
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} tetris_t;
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/* Named according to: http://de.wikipedia.org/wiki/Tetris */
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typedef enum {
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SHAPE_I, /* line of four dots */
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SHAPE_J, /* inverted L */
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SHAPE_L,
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SHAPE_O, /* cubeoid */
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SHAPE_S,
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SHAPE_Z, /* inverted S */
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SHAPE_T
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} shape_t;
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typedef enum {
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DIR_LEFT,
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DIR_RIGHT,
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DIR_DOWN,
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DIR_ALL
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} direction_t;
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typedef struct {
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shape_t shape;
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uint8_t clipping[4];
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int8_t pos_x, pos_y, orientation;
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} stone_t;
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inline static void tetris_copy_clipping(clipping_t src, clipping_t dest) {
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dest[0] = src[0];
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dest[1] = src[1];
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dest[2] = src[2];
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dest[3] = src[3];
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}
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void tetris_start( void );
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uint8_t tetris_flush_lines( void );
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bool_t tetris_turn_stone( void );
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bool_t tetris_shift_stone(direction_t dir, uint8_t times);
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bool_t tetris_detect_collision(direction_t dir);
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#endif /* _TETRIS_H_ */
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