private void CreateIdleState()
{
idleState = (fsm, gameObj) => {
// GOAP planning
// get the world state and the goal we want to plan for
HashSet <KeyValuePair <string, object> > worldState = enemyTypeDataProvider.GetWorldState();
HashSet <KeyValuePair <string, object> > goal = enemyTypeDataProvider.CreateGoalState();
// Plan
Stack <GoapAction> plan = planner.Plan(worldState, goal);
if (plan != null)
{
// we have a plan, hooray!
currentActions = plan;
enemyTypeDataProvider.PlanFound(goal, plan);
fsm.PopState(); // switch to PerformAction state
fsm.PushState(performActionState);
}
else
{
// ugh, we couldn't get a plan
Debug.Log("Failed Plan: " + goal);
enemyTypeDataProvider.PlanFailed(goal);
fsm.PopState(); // switch back to IdleAction state
fsm.PushState(idleState);
}
};
}
private void CreatePerformActionState()
{
performActionState = (fsm, gameObj) => {
// perform the action
if (!HasActionPlan())
{
// no actions to perform
Debug.Log("<color=red>Done actions</color>");
fsm.PopState();
fsm.PushState(idleState);
enemyTypeDataProvider.ActionsFinished();
return;
}
GoapAction action = currentActions.Peek();
if (action.IsDone())
{
// the action is done. Remove it so we can perform the next one
currentActions.Pop();
}
if (HasActionPlan())
{
// perform the next action
action = currentActions.Peek();
bool inRange = action.RequiresInRange() ? action.IsInRange() : true;
if (inRange)
{
// we are in range, so perform the action
bool success = action.Perform(gameObj);
if (!success)
{
// action failed, we need to plan again
fsm.PopState();
fsm.PushState(idleState);
enemyTypeDataProvider.PlanAborted(action);
}
}
else
{
// we need to move there first
// push moveTo state
fsm.PushState(moveToState);
}
}
else
{
// no actions left, move to Plan state
fsm.PopState();
fsm.PushState(idleState);
enemyTypeDataProvider.ActionsFinished();
}
};
}
private void CreateMoveToState()
{
moveToState = (fsm, gameObj) => {
// move the game object
GoapAction action = currentActions.Peek();
if (action.RequiresInRange() && action.target == null)
{
Debug.Log("Fatal error: Action requires a target but has none. Planning failed. You did not assign the target in your Action.checkProceduralPrecondition()");
fsm.PopState(); // move
fsm.PopState(); // perform
fsm.PushState(idleState);
return;
}
// get the agent to move itself
Debug.Log("Move to do: " + action.name);
if (enemyTypeDataProvider.MoveAgent(action))
{
fsm.PopState();
}
};
}