#include <mokki.h>

int board_x = 10;
int board_y = 20;

int chooser_col = 0;
int chooser_row = 0;

int last_btn_state[8] = {0, 0, 0, 0, 0, 0, 0, 0};
int now_btn_state[8] = {0, 0, 0, 0, 0, 0, 0, 0};

int draw_rect(int x, int y, int w, int h, int col) {
	for (int j=y; j<y+h; j++) {
		for (int i=x; i<x+w; i++) {
			gfx_set_pixel(i, j, col);
		}
	}
}

int draw_board() {
	// first vertical line
	draw_rect(board_x+12, board_y+0, 5, 46, COLOR_WHITE);
	// second vertical line
	draw_rect(board_x+29, board_y+0, 5, 46, COLOR_WHITE);
	// first horizontal line
	draw_rect(board_x+0, board_y+12, 46, 5, COLOR_WHITE);
	// second horizontal line
	draw_rect(board_x+0, board_y+29, 46, 5, COLOR_WHITE);
}

int draw_chooser(int column, int row){
    draw_rect(
	board_x + column * 17 + 2,
	board_y + row * 17 + 2,
	8, 8, COLOR_DARKGRAY
	);
}

int main(int event, void* data) {
	for (int i=0; i<8; i++) {
		now_btn_state[i] = btn_get(i);
	}

	while(1) {
		for (int i=0; i<8; i++) {
			last_btn_state[i] = now_btn_state[i];
			now_btn_state[i] = btn_get(i);
		}

		if ( now_btn_state[3]==1 && last_btn_state[3]==0 ) {
			if (chooser_col < 2) {
				chooser_col++;
			}
		}
		if ( now_btn_state[2]==1 && last_btn_state[2]==0 ) {
			chooser_col--;
		}

		gfx_clear();
		draw_board();
		draw_chooser(chooser_col, chooser_row);
		gfx_update();
	}
}