Sara/behaviour-tree-test
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fix: behaviourtree ends frame when root is hit

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Sara Gerretsen 2026-03-18 15:07:29 +01:00
parent fef1e3f8bd
commit 427c0a7ec8
3 changed files with 10 additions and 5 deletions
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6
behaviour_node.h
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@ -14,15 +14,17 @@ protected:
void _notification(int what);
public:
virtual void enter() {}
virtual void execute() {}
virtual void enter() {
set_status(Fail);
}
virtual void exit() {}
virtual BehaviourNode *get_next() { return this; }
private:
class BehaviourTree *behaviour_tree{ nullptr };
BehaviourNode *parent{ nullptr };
Status status{};
Status status{ Fail };
bool leaf{ false };
public:

8
behaviour_tree.cpp
View file

@ -1,6 +1,7 @@
#include "behaviour_tree.h"
#include "behaviour_nodes/behaviour_composite.h"
#include "behaviour_nodes/behaviour_node.h"
#include "behaviour_nodes/control_nodes.h"
#include "core/config/engine.h"
#include "core/variant/typed_array.h"
@ -21,11 +22,12 @@ void BehaviourTree::_notification(int what) {
return;
case NOTIFICATION_READY:
for (Variant var : get_children()) {
if ((this->current = cast_to<BehaviourNode>(var))) {
if ((this->root = cast_to<BehaviourNode>(var))) {
this->current = this->root;
break;
}
}
ERR_FAIL_COND_EDMSG(this->current == nullptr, "No valid BehaviourNode in BehaviourTree");
ERR_FAIL_COND_EDMSG(this->root == nullptr, "No valid BehaviourNode in BehaviourTree");
set_process(true);
return;
case NOTIFICATION_PROCESS:
@ -47,6 +49,6 @@ bool BehaviourTree::execute_next() {
next->enter();
}
this->current = next;
return cast_to<BehaviourComposite>(this->current) || this->current->get_status() == BehaviourNode::Fail;
return this->current != this->root && (cast_to<BehaviourComposite>(this->current) || this->current->get_status() != BehaviourNode::Running);
}
}

1
behaviour_tree.h
View file

@ -15,4 +15,5 @@ public:
private:
class BehaviourNode *current{ nullptr };
class BehaviourNode *root{ nullptr };
};