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Add Force Finish node to BT

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This commit is contained in:
Wojtek Figat
2023-08-22 11:12:05 +02:00
parent d86eb5a4c2
commit 3259af3368
4 changed files with 29 additions and 5 deletions
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9
Source/Engine/AI/Behavior.cpp
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@@ -26,12 +26,12 @@ void Behavior::StartLogic()
_knowledge.InitMemory(tree); _knowledge.InitMemory(tree);
} }
void Behavior::StopLogic() void Behavior::StopLogic(BehaviorUpdateResult result)
{ {
if (_result != BehaviorUpdateResult::Running) if (_result != BehaviorUpdateResult::Running || result == BehaviorUpdateResult::Running)
return; return;
_accumulatedTime = 0.0f; _accumulatedTime = 0.0f;
_result = BehaviorUpdateResult::Success; _result = result;
} }
void Behavior::ResetLogic() void Behavior::ResetLogic()
@@ -83,8 +83,9 @@ void Behavior::OnLateUpdate()
context.DeltaTime = updateDeltaTime; context.DeltaTime = updateDeltaTime;
const BehaviorUpdateResult result = tree->Graph.Root->InvokeUpdate(context); const BehaviorUpdateResult result = tree->Graph.Root->InvokeUpdate(context);
if (result != BehaviorUpdateResult::Running) if (result != BehaviorUpdateResult::Running)
{
_result = result; _result = result;
if (_result != BehaviorUpdateResult::Running)
{
Finished(); Finished();
} }
} }

3
Source/Engine/AI/Behavior.h
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@@ -71,7 +71,8 @@ public:
/// <summary> /// <summary>
/// Stops the logic. /// Stops the logic.
/// </summary> /// </summary>
API_FUNCTION() void StopLogic(); /// <param name="result">The logic result.</param>
API_FUNCTION() void StopLogic(BehaviorUpdateResult result = BehaviorUpdateResult::Success);
/// <summary> /// <summary>
/// Resets the behavior logic by clearing knowledge (clears blackboard and removes goals) and resetting execution state (goes back to root). /// Resets the behavior logic by clearing knowledge (clears blackboard and removes goals) and resetting execution state (goes back to root).

6
Source/Engine/AI/BehaviorTreeNodes.cpp
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@@ -246,3 +246,9 @@ BehaviorUpdateResult BehaviorTreeSubTreeNode::Update(BehaviorUpdateContext conte
// Run nested tree // Run nested tree
return tree->Graph.Root->InvokeUpdate(context); return tree->Graph.Root->InvokeUpdate(context);
} }
BehaviorUpdateResult BehaviorTreeForceFinishNode::Update(BehaviorUpdateContext context)
{
context.Behavior->StopLogic(Result);
return Result;
}

16
Source/Engine/AI/BehaviorTreeNodes.h
View File

@@ -141,3 +141,19 @@ public:
BitArray<> RelevantNodes; BitArray<> RelevantNodes;
}; };
}; };
/// <summary>
/// Forces behavior execution end with a specific result (eg. force fail).
/// </summary>
API_CLASS(Sealed) class FLAXENGINE_API BehaviorTreeForceFinishNode : public BehaviorTreeNode
{
DECLARE_SCRIPTING_TYPE_WITH_CONSTRUCTOR_IMPL(BehaviorTreeForceFinishNode, BehaviorTreeNode);
API_AUTO_SERIALIZATION();
// Execution result.
API_FIELD() BehaviorUpdateResult Result = BehaviorUpdateResult::Success;
public:
// [BehaviorTreeNode]
BehaviorUpdateResult Update(BehaviorUpdateContext context) override;
};