lightgun
A lightgun is a pointing input device that resembles a handgun and is used to interact with video games by indicating a location on the display to shoot. Traditional lightguns contain a light detector that senses light emitted from the screen when the trigger is pressed. By analyzing the timing of the detected light relative to the display’s refresh cycle, the game determines where on the screen the gun is aimed.
Most early lightguns rely on cathode ray tube (CRT) displays. The computer or console times the screen’s
Variants have emerged as display technology evolved. Infrared-based guns and camera-based tracking systems have been developed
Compatibility and limitations are notable. Traditional lightguns typically require CRT displays to work reliably, and many