Logistic robot

Logistic robots are autonomous floating devices capable of transporting resources between logistic chests (Requester chests, Provider chests and Storage chests).

If there's a requester chest with an unfulfilled request, a logistic robot will attempt to get the relevant item from a provider chest or a storage chest and deliver it to the requester chest. If no request that can be fulfilled exists, the robot will try to move any item from a requester chest to a storage chest. Otherwise the robot will just float in place.

Robots will not take requests that will be fulfilled when all the robots reach their destinations. That is, a requester chest that needs 10 Iron plates will not get stuffed with 100 plates just because there are 100 robots idling.

Logistic robots ignore obstacles (including water) and all other units.

Logistic robots are one of the priority targets of Biters, meaning they will engage them even if there are Pollution-producing buildings around. Since logistic robots have no means of defending themselves or even escaping, they get destroyed very quickly.

Upgrades for logistic bots enhance their speed and the number of items carried at a time (starts at 1).