draw_runner.sv

module draw_runner(  input frame_Clk, Reset,
							input [9:0] WriteX, WriteY,
							input [9:0] PosX, PosY,
							input Dead,
							input [1:0] Game_State,
							input int score,
							input [7:0] easter_egg,
							output logic runner_on_wr,
							output logic [17:0] address);
	//$readmemh("sprite/run1_88x94.txt", mem, 191323, 199594);
	//$readmemh("sprite/run3_88x94.txt", mem, 207867, 216138);
	//$readmemh("sprite/run4_88x94.txt", mem, 216139, 224410);
	//$readmemh("sprite/die1_88x94.txt", mem, 46904, 55175);
	
	//$readmemh("sprite/XK3_88x94.txt", mem, 233303, 241574);
	//$readmemh("sprite/XK4_88x94.txt", mem, 241575, 249846);
	//$readmemh("sprite/XKdie_88x94.txt", mem, 249847, 258118);
	
	parameter [17:0] runner1 = 18'd191323;
	parameter [17:0] runner3 = 18'd207867;
	parameter [17:0] runner4 = 18'd216139;
	parameter [17:0] die1 = 18'd46904;
	parameter [17:0] XK3 = 18'd233303;
	parameter [17:0] XK4 = 18'd241575;
	parameter [17:0] XKdie = 18'd249847;
	int runner_X = 88;
	int runner_Y = 94;
	
	int frame_count;
	logic draw_run3;
	logic [17:0] start, offset;
	int SizeX, SizeY, DistX, DistY;
	
	initial
	begin
		frame_count = 1;
		draw_run3 = 1'b1;
	end
	
	always_comb
	begin
		SizeX = runner_X;
		SizeY = runner_Y;
		DistX = WriteX - PosX;
		DistY = WriteY - PosY;
	end
	
	always_ff @ (negedge frame_Clk or posedge Reset)
	begin
		if (Reset)
		begin
			frame_count <= 1;
			draw_run3 <= 1'b1;
		end
		else
		begin
			if (frame_count == 10)
			begin
				draw_run3 <= ~(draw_run3);
				frame_count <= 1;
			end
			else
				frame_count <= frame_count + 1;
		end
	end
	
	always_comb
	begin
		if (Game_State == 2'b00)
			start = runner1;
		else
		begin
			if (easter_egg == 8'b00000001)
			begin
				if (Game_State == 2'b10 || Dead)
					start = XKdie;
				else
				begin
					if (draw_run3)
						start = XK3;
					else
						start = XK4;
				end
			end
			else
			begin
				if (Game_State == 2'b10 || Dead)
					start = die1;
				else
				begin
					if (draw_run3)
						start = runner3;
					else
						start = runner4;
				end
			end
		end
		offset = DistY*SizeX + DistX;
	end
	assign address = start + offset;
	
	always_comb
   begin:Runner_on_wr_proc
	 if ((WriteX >= PosX) &&
       (WriteX < PosX + runner_X) &&
       (WriteY >= PosY) &&
       (WriteY < PosY + runner_Y))
      runner_on_wr = 1'b1;
    else 
		runner_on_wr = 1'b0;
   end

endmodule