Extracting Resources

A player extracts RESOURCEs from CELLs by assigning UNITs to that cell with the Produce COMMAND. Each UNIT can produce at most one FRU of the TERRAIN TYPE's RESOURCE per production turn. Each TERRAIN TYPE has a resource limit that determines how many UNITs can be Produceing on that cell simultaneously. (A cell may contain an arbitrary number of UNITs simultaneously, but only a limited number of them can be Produceing.)

In addition, each TERRAIN TYPE has a production time that specifies how long (in GLOBAL CLOCK units) it takes a single UNIT to Produce a single FRU of that CELL's RESOURCE. Thus, it is ``easier'' to produce food in the plains than it is to produce iron in the mountains.