Harvest Bot

Harvests crops and carries them to storage units.

Harvests ripe crops and autumn mushrooms within 12 tiles of its station, 1 crop (up to 5 with upgrades) per trip, and takes them to the nearest Storage Unit. They count as soon as they're picked. After 6 trips it goes home to recharge.

Recharging takes 16 seconds at its station and costs biofuel: 1, plus 1 for each capacity upgrade and for every second speed upgrade. Speed upgrades take it from 1 to 2.6 tiles a second. Each upgrade costs more than the last, counted across all bots of its kind. Demolishing one takes its upgrades back off that count, so the next upgrade costs less.