#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 */