A data element specifying the cost of producing a unit. For example:
- <productionRule name="buyInfantry">
- <cost resource="PUs" quantity="3" />
- <result resourceOrUnit="infantry" quantity="1"/>
It is possible to specify multiple resources, but only IPCs will be shown on the screen.
You can specify a quantity other than 1 for number of units created. This means the unit can only be bought in lots of that quantity (no quantity discounts). In some scenarios, this is used to create fractional unit costs.