GM: Getting the number of blue pixels on the screen

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Getting the number of blue pixels on the screen in Game Maker is an example on the return function of Game Maker, that is used in Script.

[edit] Explanation

What the script should do is make a loop that would check the color of each pixel on the room. To do that, we shall check one row at a time, then move on to the next row.

[edit] The Code

width=room_width;
height=room_height;
current_x=0;
current_y=0;
blue_pixels=0;
repeat(height)
{
	repeat(width)
	{
		current_pixel_color=draw_getpixel(current_x,current_y);
		if current_pixel_color==c_blue
		{
			blue_pixels+=1;
		}
	}
 	current_y+=1;
	current_x=0;
}
return blue_pixels;