Initial Commit

include/debug.h

@@ -0,0 +1,11 @@
+#ifndef __DEBUG_H
+#define __DEBUG_H
+
+#ifdef APP_DEBUG
+#define debug_printf(fmt, ...) \
+	printf((fmt) __VA_OPT__(,) __VA_ARGS__)
+#else
+#define debug_printf(fmt, ...)
+#endif
+
+#endif /* !__DEBUG_H */

include/game.h

@@ -0,0 +1,18 @@
+#ifndef __GAME_H
+#define __GAME_H
+
+void game_init();
+
+// shape
+void game_spawn_shape();
+void game_place_shape();
+void game_rotate_shape();
+void game_move_shape(int direction);
+int game_move_shape_down();
+void game_reset_shape();
+
+void game_render();
+
+int game_is_done();
+
+#endif /* !__GAME_H */

include/grid.h

@@ -0,0 +1,25 @@
+#ifndef __GRID_H
+#define __GRID_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#define GRID_WIDTH 10
+#define GRID_HEIGHT 16
+
+#define grid_cell(grid, x, y) ((grid)[(x) + ((y) * GRID_WIDTH)])
+
+typedef uint8_t grid_t[GRID_HEIGHT * GRID_WIDTH];
+
+void grid_init(grid_t grid);
+
+int grid_check_collision(grid_t grid, int8_t x, int8_t y);
+
+// clears all full rows on the board.
+// Returns the number of rows cleared.
+uint32_t grid_clear_full_rows(grid_t grid);
+
+// Clears the row and moves all rows above down one step.
+void grid_clear_row(grid_t grid, uint8_t row);
+
+#endif /* __GRID_H */

include/input.h

@@ -0,0 +1,25 @@
+#ifndef __INPUT_H
+#define __INPUT_H
+
+typedef enum {
+	ACTION_ROTATE,
+	ACTION_MOVE_LEFT,
+	ACTION_MOVE_RIGHT,
+	ACTION_DROP,
+	ACTION_QUIT,
+} action_t;
+
+#define NUM_ACTIONS 5
+
+void input_init();
+
+void input_update();
+
+// check if an action is triggered repeatedly.
+int input_repeat(action_t action);
+
+// check if an action is triggered once.
+// eg. If a key was pressed.
+int input_once(action_t action);
+
+#endif /* !__INPUT_H */

include/render.h

@@ -0,0 +1,29 @@
+#ifndef __RENDER_H
+#define __RENDER_H
+
+#include "grid.h"
+#include "shape.h"
+#include <SDL3/SDL_video.h>
+#include <stdint.h>
+
+int render_init(SDL_Window *window);
+
+void render_shutdown();
+
+void render_board(const grid_t board);
+
+void render_board_border();
+
+void render_shape(const shape_t *shape, uint8_t x, uint8_t y);
+
+void render_next_shape(const shape_t *shape);
+
+void render_score(uint32_t score);
+
+void render_game_over_text();
+
+void render_clear();
+
+void render_present();
+
+#endif /* __RENDER_H */

include/render/text.h

@@ -0,0 +1,14 @@
+#ifndef __RENDER_TEXT_H
+#define __RENDER_TEXT_H
+
+#include <SDL3/SDL_render.h>
+#include <stddef.h>
+
+int text_init(SDL_Renderer *renderer);
+
+void text_shutdown();
+
+int text_render(const char *text, size_t len, float x, float y);
+
+#endif // !__RENDER_TEXT_H
+

include/render/tile.h

@@ -0,0 +1,24 @@
+#ifndef __RENDER_TILE_H
+#define __RENDER_TILE_H
+
+#include <SDL3/SDL_render.h>
+#include <stdint.h>
+
+typedef enum {
+	TILE_GRAY,
+	TILE_BLUE,
+	TILE_LIGHTBLUE,
+	TILE_RED,
+	TILE_GREEN,
+	TILE_YELLOW,
+	TILE_ORANGE,
+	TILE_MAGENTA,
+} tile_t;
+
+int tile_init(SDL_Renderer *renderer);
+
+void tile_shutdown();
+
+void tile_render(SDL_Renderer *renderer, const SDL_FRect* rect, tile_t tile_index);
+
+#endif // __RENDER_TILE_H 

include/shape.h

@@ -0,0 +1,31 @@
+#ifndef __SHAPE_H
+#define __SHAPE_H
+
+#include "render/tile.h"
+#include <stdint.h>
+#include <sys/types.h>
+
+#define NUM_SHAPES 7
+
+typedef enum {
+	SHAPE_O,
+	SHAPE_L,
+	SHAPE_J,
+	SHAPE_T,
+	SHAPE_Z,
+	SHAPE_S,
+	SHAPE_I,
+} SHAPETYPE; 
+
+typedef struct _shape {
+	uint8_t type;
+	int8_t coordinates[6];
+} shape_t;
+
+void shape_create(shape_t* shape, SHAPETYPE type);
+
+void shape_copy(shape_t* dest, const shape_t* src);
+
+tile_t shape_color(const shape_t* shape);
+
+#endif /* __SHAPE_H */