可能造成的原因有很多。先修改完善代码排错。
EnemyController =Cast<AAIController>(GetController());
if (EnemyController &&PatrolTarget)
{
FAIMoveRequest MoveRequest;
MoveRequest.SetGoalActor(PatrolTarget);
MoveRequest.SetAcceptanceRadius(15.0f);
MoveRequest.SetCanStrafe(true);
MoveRequest.SetUsePathfinding(true);
// 获取路径指针
FNavPath* NavPath = NavPathSharedPtr.Get();
if (NavPath)
{
EPathFollowingRequestResult::Type MoveResult = EnemyController->MoveTo(MoveRequest,NavPath);
UE_LOG(LogTemp, Warning, TEXT("MoveTo result: %d"),(int32)MoveResult);
if (NavPath->IsValid())
{
const TArray<FNavPathPoint>& PathPoints =NavPath->GetPathPoints();
for (auto& Point : PathPoints)
{
const FVector& Location =Point.Location;
}
}
else
{
UE_LOG(LogTemp, Warning, TEXT("NavPath is invalid!"));
// 处理路径无效的情况
// 例如，重新计算路径或者选择新的目标
// 这里简单地重新计算路径作为示例
NavPathSharedPtr = EnemyController->FindPathToActor(PatrolTarget);
if (NavPathSharedPtr.IsValid())
{
FNavPath* NewNavPath =NavPathSharedPtr.Get();
MoveResult =EnemyController->MoveTo(MoveRequest, NewNavPath);
UE_LOG(LogTemp, Warning,TEXT("Re - MoveTo result: %d"), (int32)MoveResult);
}
}
}
else
{
UE_LOG(LogTemp, Warning, TEXT("NavPath pointer is null!"));
// 处理路径指针为空的情况
// 例如，重新获取路径
NavPathSharedPtr = EnemyController->FindPathToActor(PatrolTarget);
if (NavPathSharedPtr.IsValid())
{
FNavPath* NewNavPath = NavPathSharedPtr.Get();
EPathFollowingRequestResult::Type MoveResult =EnemyController->MoveTo(MoveRequest, NewNavPath);
UE_LOG(LogTemp, Warning, TEXT("New MoveTo result: %d"),(int32)MoveResult);
}
}
}
定义部分改为：
// 假设这是头文件中的定义
class AAIController;
class AActor;
// 定义属性
UPROPERTY()
class AAIController* EnemyController =nullptr;
UPROPERTY(EditInstanceOnly, Category ="AI Navigation")
class AActor* PatrolTarget = nullptr;
这样看输出结果，排查一下具体问题原因在哪。