public override StepRes execute(PlanetCondition conditions, Colony colony)
{
ColonyProduction prod = colony.getProduction();
PlanetCondition newCond = conditions
.incOxygen(prod.oxygen)
.incSurfaceN(prod.surfaceN);
Colony newCol = colony.massGrow();
return(new StepRes
{
conditions = newCond,
colony = newCol
});
}