107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
/**
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* blackboard.cpp
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* =============================================================================
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* Copyright 2021-2023 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 "blackboard.h"
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#ifdef LIMBOAI_MODULE
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#include "core/variant/variant.h"
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#include "scene/main/node.h"
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#endif // LIMBOAI_MODULE
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#ifdef LIMBOAI_GDEXTENSION
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#include <godot_cpp/classes/node.hpp>
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#include <godot_cpp/classes/ref.hpp>
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#include <godot_cpp/classes/ref_counted.hpp>
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#include <godot_cpp/core/object.hpp>
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using namespace godot;
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#endif
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Ref<Blackboard> Blackboard::top() const {
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Ref<Blackboard> bb(this);
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while (bb->get_parent().is_valid()) {
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bb = bb->get_parent();
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}
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return bb;
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}
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Variant Blackboard::get_var(const String &p_name, const Variant &p_default, bool p_complain) const {
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if (data.has(p_name)) {
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return data.get(p_name).get_value();
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} else if (parent.is_valid()) {
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return parent->get_var(p_name, p_default);
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} else {
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if (p_complain) {
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ERR_PRINT(vformat("Blackboard: Variable \"%s\" not found.", p_name));
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}
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return p_default;
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}
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}
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void Blackboard::set_var(const String &p_name, const Variant &p_value) {
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if (data.has(p_name)) {
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// Not checking type - allowing duck-typing.
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data[p_name].set_value(p_value);
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} else {
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BBVariable var(p_value.get_type());
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var.set_value(p_value);
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data.insert(p_name, var);
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}
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}
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bool Blackboard::has_var(const String &p_name) const {
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return data.has(p_name) || (parent.is_valid() && parent->has_var(p_name));
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}
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void Blackboard::erase_var(const String &p_name) {
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data.erase(p_name);
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}
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void Blackboard::bind_var_to_property(const String &p_name, Object *p_object, const StringName &p_property) {
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ERR_FAIL_COND_MSG(!data.has(p_name), "Blackboard: Binding failed - can't bind variable that doesn't exist.");
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data[p_name].bind(p_object, p_property);
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}
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void Blackboard::unbind_var(const String &p_name) {
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ERR_FAIL_COND_MSG(data.has(p_name), "Blackboard: Can't unbind variable that doesn't exist.");
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data[p_name].unbind();
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}
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void Blackboard::add_var(const String &p_name, const BBVariable &p_var) {
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ERR_FAIL_COND(data.has(p_name));
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data.insert(p_name, p_var);
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}
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void Blackboard::prefetch_nodepath_vars(Node *p_node) {
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ERR_FAIL_COND(p_node == nullptr);
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for (const KeyValue<String, BBVariable> &kv : data) {
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BBVariable var = kv.value;
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if (var.get_value().get_type() == Variant::NODE_PATH) {
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Node *fetched_node = p_node->get_node_or_null(var.get_value());
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if (fetched_node != nullptr) {
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var.set_value(fetched_node);
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}
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}
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}
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}
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void Blackboard::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_var", "p_name", "p_default", "p_complain"), &Blackboard::get_var, Variant(), true);
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ClassDB::bind_method(D_METHOD("set_var", "p_name", "p_value"), &Blackboard::set_var);
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ClassDB::bind_method(D_METHOD("has_var", "p_name"), &Blackboard::has_var);
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ClassDB::bind_method(D_METHOD("set_parent_scope", "p_blackboard"), &Blackboard::set_parent);
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ClassDB::bind_method(D_METHOD("get_parent_scope"), &Blackboard::get_parent);
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ClassDB::bind_method(D_METHOD("erase_var", "p_name"), &Blackboard::erase_var);
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ClassDB::bind_method(D_METHOD("prefetch_nodepath_vars", "p_node"), &Blackboard::prefetch_nodepath_vars);
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ClassDB::bind_method(D_METHOD("top"), &Blackboard::top);
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ClassDB::bind_method(D_METHOD("bind_var_to_property", "p_name", "p_object", "p_property"), &Blackboard::bind_var_to_property);
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ClassDB::bind_method(D_METHOD("unbind_var", "p_name"), &Blackboard::unbind_var);
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}
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