Initial Commit

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 */