Fix BTState overwriting blackboard variables on init
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d7438b8a8d
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@ -49,6 +49,7 @@ public:
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Variant get_var(const StringName &p_name, const Variant &p_default = Variant(), bool p_complain = true) const;
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void set_var(const StringName &p_name, const Variant &p_value);
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bool has_var(const StringName &p_name) const;
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_FORCE_INLINE_ bool has_local_var(const StringName &p_name) const { return data.has(p_name); }
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void erase_var(const StringName &p_name);
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void clear() { data.clear(); }
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TypedArray<StringName> list_vars() const;
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@ -416,7 +416,7 @@ void BlackboardPlan::populate_blackboard(const Ref<Blackboard> &p_blackboard, bo
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ERR_FAIL_COND(p_node == nullptr && prefetch_nodepath_vars);
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ERR_FAIL_COND(p_blackboard.is_null());
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for (const Pair<StringName, BBVariable> &p : var_list) {
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if (p_blackboard->has_var(p.first) && !overwrite) {
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if (p_blackboard->has_local_var(p.first) && !overwrite) {
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continue;
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}
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bool has_mapping = parent_scope_mapping.has(p.first);
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@ -183,6 +183,7 @@ void BTPlayer::_notification(int p_notification) {
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blackboard = Ref<Blackboard>(memnew(Blackboard));
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}
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if (blackboard_plan.is_valid()) {
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// Don't overwrite existing blackboard values as they may be initialized from code.
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blackboard_plan->populate_blackboard(blackboard, false, this);
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}
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if (behavior_tree.is_valid()) {
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@ -95,7 +95,8 @@ void LimboState::_initialize(Node *p_agent, const Ref<Blackboard> &p_blackboard)
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blackboard = p_blackboard;
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}
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if (blackboard_plan.is_valid() && !blackboard_plan->is_empty()) {
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blackboard_plan->populate_blackboard(blackboard, true, this);
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// Don't overwrite existing blackboard values as they may be initialized from code.
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blackboard_plan->populate_blackboard(blackboard, false, this);
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}
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_setup();
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