/// <summary>
/// Create the perform action state.
/// </summary>
private void CreatePerformActionState()
{
m_PerformActionState = (fsm, gameObject) =>
{
// If the agent has no plan, go to the idle state and say we are doing nothing.
if (!HasActionPlan())
{
fsm.RemoveState();
fsm.AddState(m_IdleState);
m_DataProvider.ActionsFinished();
return;
}
GOAPAction action = m_CurrentActions.Peek();
if (action.IsDone())
{
m_CurrentActions.Dequeue();
}
// If the agent has a plan.
if (HasActionPlan())
{
action = m_CurrentActions.Peek();
// Check if in range of action.
bool inRange = action.RequiresInRange() ? action.IsInRange() : true;
// If we are in range for the action.
if (inRange)
{
// Check if the agent was able to perform the action.
bool success = action.Perform(gameObject);
// If not, abort plan and go back to idle.
if (!success)
{
fsm.RemoveState();
fsm.AddState(m_IdleState);
m_DataProvider.PlanAborted(action);
}
}
// If not in range, start moving towards target.
else
{
fsm.AddState(m_MoveToState);
}
}
};
}
private void createPerformActionState()
{
performActionState = (fsm, obj) => {
if (!hasActionPlan())
{
fsm.popState();
fsm.pushState(idleState);
dataProvider.actionsFinished();
return;
}
GOAPAction action = currentActions.Peek();
if (action.IsDone())
{
currentActions.Dequeue();
}
if (hasActionPlan())
{
action = currentActions.Peek();
bool inRange = action.RequiresInRange() ? action.isInRange() : true;
if (inRange)
{
bool success = action.Perform(obj);
if (!success)
{
fsm.popState();
fsm.pushState(idleState);
createIdleState();
dataProvider.planAborted(action);
}
}
else
{
fsm.pushState(moveToState);
}
}
else
{
fsm.popState();
fsm.pushState(idleState);
dataProvider.actionsFinished();
}
};
}
/*
* Update
*/
public virtual void Update()
{
switch (_agentState)
{
case AgentState.Planning:
{
UpdateState(_state);
foreach (var action in _actions)
{
action.Reset();
}
if (FindPlan())
{
_agentState = AgentState.Picking;
}
else
{
if (IdleAction != null)
{
IdleAction.Reset();
if (IdleAction.IsPossibleToPerform())
{
_current = IdleAction;
_agentState = AgentState.Performing;
}
}
}
}
break;
case AgentState.Picking:
{
if (_plan.Count() > 0)
{
_current = _plan.Dequeue();
_agentState = AgentState.Performing;
}
else
{
_agentState = AgentState.Completed;
}
}
break;
case AgentState.Performing:
{
if (_current.IsDone())
{
ActionCompleted(_current);
_agentState = AgentState.Picking;
}
else if (!_current.Perform())
{
_agentState = AgentState.Picking;
}
}
break;
case AgentState.Completed:
{
_current = null;
_agentState = AgentState.Planning;
}
break;
case AgentState.Paused:
break;
}
}