static void Postfix(LordJob_FormAndSendCaravan __instance, ref StateGraph __result)
{
// This patch modifies the return value of LordJob_FormAndSendCaravan.CreateGraph
// The CreateGraph function generates a finite state machine that controls caravan formation.
// Each state is a LordToil.
// We need to make a few changes to that state machine.
Traverse tthis = Traverse.Create(__instance);
IntVec3 meetingPoint = tthis.Field("meetingPoint").GetValue <IntVec3>();
// All we need to do is replace the GatherAnimals and GatherSlaves LordToils with our versions.
// OLD VERSIONS
LordToil oldGatherAnimals = tthis.Field("gatherAnimals").GetValue <LordToil>();
LordToil oldGatherSlaves = tthis.Field("gatherSlaves").GetValue <LordToil>();
// OUR NEW VERSIONS
LordToil_BillyCaravan_GatherAnimals billyGatherAnimals = new LordToil_BillyCaravan_GatherAnimals(meetingPoint);
LordToil_BillyCaravan_GatherSlaves billyGatherSlaves = new LordToil_BillyCaravan_GatherSlaves(meetingPoint);
// REPLACE member variables with new versions
tthis.Field("gatherAnimals").SetValue(billyGatherAnimals);
tthis.Field("gatherSlaves").SetValue(billyGatherSlaves);
// REPLACE states in state machine with new versions
__result = __result.ReplaceState(oldGatherAnimals, billyGatherAnimals);
__result = __result.ReplaceState(oldGatherSlaves, billyGatherSlaves);
}
