84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/**
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* bt_subtree.cpp
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* =============================================================================
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* Copyright 2021-2024 Serhii Snitsaruk
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*
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* Use of this source code is governed by an MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT.
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* =============================================================================
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*/
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#include "bt_subtree.h"
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void BTSubtree::set_subtree(const Ref<BehaviorTree> &p_subtree) {
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if (Engine::get_singleton()->is_editor_hint()) {
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if (subtree.is_valid() && subtree->is_connected(LW_NAME(changed), callable_mp(this, &BTSubtree::_update_blackboard_plan))) {
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subtree->disconnect(LW_NAME(changed), callable_mp(this, &BTSubtree::_update_blackboard_plan));
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}
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if (p_subtree.is_valid()) {
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p_subtree->connect(LW_NAME(changed), callable_mp(this, &BTSubtree::_update_blackboard_plan));
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}
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}
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subtree = p_subtree;
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_update_blackboard_plan();
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emit_changed();
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}
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void BTSubtree::_update_blackboard_plan() {
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if (get_blackboard_plan().is_null()) {
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set_blackboard_plan(Ref<BlackboardPlan>(memnew(BlackboardPlan)));
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}
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get_blackboard_plan()->set_base_plan(subtree.is_valid() ? subtree->get_blackboard_plan() : nullptr);
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}
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String BTSubtree::_generate_name() {
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String s;
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if (subtree.is_null()) {
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s = "(unassigned)";
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} else if (subtree->get_path().is_empty()) {
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s = "(unsaved)";
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} else {
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s = vformat("\"%s\"", subtree->get_path());
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}
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return vformat("Subtree %s", s);
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}
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void BTSubtree::initialize(Node *p_agent, const Ref<Blackboard> &p_blackboard, Node *p_scene_root) {
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ERR_FAIL_COND_MSG(!subtree.is_valid(), "Subtree is not assigned.");
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ERR_FAIL_COND_MSG(!subtree->get_root_task().is_valid(), "Subtree root task is not valid.");
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ERR_FAIL_COND_MSG(get_child_count() != 0, "Subtree task shouldn't have children during initialization.");
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add_child(subtree->get_root_task()->clone());
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BTNewScope::initialize(p_agent, p_blackboard, p_scene_root);
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}
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BT::Status BTSubtree::_tick(double p_delta) {
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ERR_FAIL_COND_V_MSG(get_child_count() == 0, FAILURE, "BT decorator doesn't have a child.");
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return get_child(0)->execute(p_delta);
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}
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PackedStringArray BTSubtree::get_configuration_warnings() {
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PackedStringArray warnings = BTTask::get_configuration_warnings(); // ! BTDecorator skipped intentionally
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if (subtree.is_null()) {
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warnings.append("Subtree needs to be assigned.");
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}
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return warnings;
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}
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void BTSubtree::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_subtree", "behavior_tree"), &BTSubtree::set_subtree);
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ClassDB::bind_method(D_METHOD("get_subtree"), &BTSubtree::get_subtree);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "subtree", PROPERTY_HINT_RESOURCE_TYPE, "BehaviorTree"), "set_subtree", "get_subtree");
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}
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BTSubtree::~BTSubtree() {
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if (Engine::get_singleton()->is_editor_hint()) {
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if (subtree.is_valid() && subtree->is_connected(LW_NAME(changed), callable_mp(this, &BTSubtree::_update_blackboard_plan))) {
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subtree->disconnect(LW_NAME(changed), callable_mp(this, &BTSubtree::_update_blackboard_plan));
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}
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}
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}
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