/// <summary>
/// Creates the state to make the agent perform an action
/// </summary>
private void CreatePerformActionState()
{
PerformActionState = (a_fFinateStateMachine, a_goObject) =>
{
if (!HasActionPlan())
{
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(IdleState);
DataProviderInterface.AllActionsFinished();
return;
}
CS_GOAPAction Action = CurrentlyActiveActions.Peek();
if (Action.IsActionFinished())
{
CurrentlyActiveActions.Dequeue();
}
if (HasActionPlan())
{
Action = CurrentlyActiveActions.Peek();
bool bIsInRange = Action.NeedsToBeInRange() ? Action.IsAgentInRange() : true;
if (bIsInRange)
{
bool bActionPerformSuccess = Action.PerformAction(a_goObject);
if (!bActionPerformSuccess)
{
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(IdleState);
CreateIdleState();
DataProviderInterface.AbortPlan(Action);
}
}
else
{
FinateStateMachine.PushStateToStack(MovingState);
}
}
else
{
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(IdleState);
DataProviderInterface.AllActionsFinished();
}
};
}
/// <summary>
/// Creates the state to move the agent to its destination for the FSM
/// </summary>
private void CreateMovingState()
{
MovingState = (a_fFinateStateMachine, a_goObject) =>
{
CS_GOAPAction Action = CurrentlyActiveActions.Peek();
if (Action.NeedsToBeInRange() && Action.m_goTarget == null)
{
FinateStateMachine.PopStateStack();
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(IdleState);
return;
}
if (DataProviderInterface.MoveAgentToAction(Action))
{
FinateStateMachine.PopStateStack();
}
};
}
/// <summary>
/// Creates the idle state for the FSM where the agent will do nothin at all https://i.imgur.com/3IcRtUP.png.
/// </summary>
private void CreateIdleState()
{
IdleState = (a_fFinateStateMachine, a_goObject) =>
{
HashSet <KeyValuePair <string, object> > kvpWorldState = DataProviderInterface.GetWorldState();
HashSet <KeyValuePair <string, object> > kvpGoal = DataProviderInterface.CreateGoalState();
Queue <CS_GOAPAction> ActionPlan = ActionPlanner.CreateActionPlan(gameObject, AvailableActions, kvpWorldState, kvpGoal);
if (ActionPlan != null)
{
CurrentlyActiveActions = ActionPlan;
DataProviderInterface.PlanFound(kvpGoal, ActionPlan);
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(PerformActionState);
}
else
{
DataProviderInterface.PlanFailed(kvpGoal);
FinateStateMachine.PopStateStack();
FinateStateMachine.PushStateToStack(IdleState);
}
};
}