EGameplayTaskRunResult UGameplayTasksComponent::RunGameplayTask(IGameplayTaskOwnerInterface& TaskOwner, UGameplayTask& Task, uint8 Priority, FGameplayResourceSet AdditionalRequiredResources, FGameplayResourceSet AdditionalClaimedResources)
{
const FText NoneText = FText::FromString(TEXT("None"));
if (Task.GetState() == EGameplayTaskState::Paused || Task.GetState() == EGameplayTaskState::Active)
{
// return as success if already running for the same owner, failure otherwise
return Task.GetTaskOwner() == &TaskOwner
? (Task.GetState() == EGameplayTaskState::Paused ? EGameplayTaskRunResult::Success_Paused : EGameplayTaskRunResult::Success_Active)
: EGameplayTaskRunResult::Error;
}
// this is a valid situation if the task has been created via "Construct Object" mechanics
if (Task.GetState() == EGameplayTaskState::Uninitialized)
{
Task.InitTask(TaskOwner, Priority);
}
Task.AddRequiredResourceSet(AdditionalRequiredResources);
Task.AddClaimedResourceSet(AdditionalClaimedResources);
Task.ReadyForActivation();
switch (Task.GetState())
{
case EGameplayTaskState::AwaitingActivation:
case EGameplayTaskState::Paused:
return EGameplayTaskRunResult::Success_Paused;
break;
case EGameplayTaskState::Active:
return EGameplayTaskRunResult::Success_Active;
break;
case EGameplayTaskState::Finished:
return EGameplayTaskRunResult::Success_Active;
break;
}
return EGameplayTaskRunResult::Error;
}
void UGameplayTasksComponent::OnGameplayTaskDeactivated(UGameplayTask& Task)
{
// process events after finishing all operations
FEventLock ScopeEventLock(this);
const bool bIsFinished = (Task.GetState() == EGameplayTaskState::Finished);
if (Task.GetChildTask() && bIsFinished)
{
if (Task.HasOwnerFinished())
{
Task.GetChildTask()->TaskOwnerEnded();
}
else
{
Task.GetChildTask()->EndTask();
}
}
if (Task.IsTickingTask())
{
// If we are removing our last ticking task, set this component as inactive so it stops ticking
TickingTasks.RemoveSingleSwap(&Task);
}
if (Task.IsSimulatedTask())
{
SimulatedTasks.RemoveSingleSwap(&Task);
}
// Resource-using task
if (Task.RequiresPriorityOrResourceManagement() && bIsFinished)
{
OnTaskEnded(Task);
}
IGameplayTaskOwnerInterface* TaskOwner = Task.GetTaskOwner();
if (!Task.IsOwnedByTasksComponent() && !Task.HasOwnerFinished() && TaskOwner)
{
TaskOwner->OnGameplayTaskDeactivated(Task);
}
UpdateShouldTick();
}