Camera Upgrade
The Camera upgrade can be placed in robots and drones with a tier 2 upgrade slot or higher, and provide identical functionality as the camera block. However, the camera upgrade has the added functionality of having two extra functions, namely distanceUp() and distanceDown() which behave as a camera pointed directly up or down, respectively. This allows robots and drones to create height maps, for instance. Both functions take the same x and y parameters, and define an upward or downward facing cone similarly to the frontal cone created by the camera block.