SnakeInterface.v.bak

module SnakeInterface(clk, reset, plot, x, y, colour, dirIn, start_game);

	input			clk;				//	50 MHz
	input			reset;
	input [3:0] dirIn; 			// The direction
	input			start_game;    // Start the game
	
	output reg [7:0] x;
	output reg [6:0] y;
	output reg [2:0] colour;
	
	output plot;

// ============================================ Keyboard Logic ===================================================
	
	wire[2:0] direction;
	
	direction_control dc (
						.dirOut(direction),
						.clk(clk),
						.reset(reset),
						.dirIn(dirIn)
						);

	
// ============================================ End Keyboard Logic ===============================================

// ============================================ Update clock  ====================================================
	
	wire update_clk; 
	wire [27:0] rd_out;
	
	RateDivider rd(
					.clk(clk),
					.reset(reset),
					.enable(1'b1),
					.load(28'b0001_0111_1101_0111_1000_0011_1111), // 2 pulses per second
					.Q(rd_out)
					);
					
	assign update_clk = (rd_out == 28'b0000000000000000000000000000) ? 1'b1 : 1'b0;
	
// ============================================ End Clock Division ======================================

					
// ============================================ Control/Datapath ====================================================

	wire idle_state, load_part_into_ram, inc_address,
	load_ram_into_current, draw_current, 
	update_head, inc_check, load_head_into_prev;
	wire load_ram;
	wire load_prev_into_ram, load_current_into_prev, erase_trail; 
	wire draw_apple;
	wire has_collided;
	wire isDead;
		
	wire reset_ram;
	wire reset_address;
	wire [3:0] drawStatus;
	
	wire [7:0] x_out;
	wire [6:0] y_out;
	wire [2:0] colour_out;
	

	
	control c0 (idle_state, load_part_into_ram, inc_address, 
					load_ram_into_current, draw_current,
					drawStatus, inc_check, load_head_into_prev,
					update_head, load_prev_into_ram, load_current_into_prev,
					reset_ram, erase_trail, draw_apple,
					reset_address, clk, reset, update_clk, 
					start_game, has_collided, isDead);
				
	datapath d0 (x_out, y_out, colour_out,
					plot, drawStatus, idle_state,
					load_ram, inc_address, load_ram_into_current,
					draw_current, update_head, load_head_into_prev,
					load_prev_into_ram, reset_ram, load_current_into_prev, 
					erase_trail, draw_apple, reset_address, 
					clk, reset, direction, 
					isDead, inc_check, has_collided);
	
	
	
	always @(*)
	x = 0;
	y = 0;
	colour = 0;
	
	
	begin 
	if (plot)
	begin
		x = x_out;
		y = y_out;
		colour = colour_out;
	end
	end
	
endmodule