![]() ![]() In the next frame, the game causes the target area to turn white, with the rest remaining black. At this point, the game uses the light sensor to sample the black color it’s reading from your TV to give it a reference point this is essential given that the ambient light in a particular room and other things of this nature can vary greatly. ![]() When you pull the trigger, this causes the game to make the TV screen go completely black for one frame. This gun primarily just consists of a button (the trigger) and a photodiode (light sensor). ![]() It turns out, the method for accomplishing this is incredibly simple, as is the gun itself. If you’ve ever played Duck Hunt or any of the other NES games that used the NES Zapper gun, you probably at one point or another wondered how the game actually knows where on the TV you are aiming the gun when you pulled the trigger. Today I found out how the gun on the original Duck Hunt game worked. ![]()
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