limboai/blackboard/blackboard_plan.h

100 lines
4.0 KiB
C++

/**
* blackboard_plan.h
* =============================================================================
* Copyright 2021-2024 Serhii Snitsaruk
*
* Use of this source code is governed by an MIT-style
* license that can be found in the LICENSE file or at
* https://opensource.org/licenses/MIT.
* =============================================================================
*/
#ifndef BLACKBOARD_PLAN_H
#define BLACKBOARD_PLAN_H
#include "bb_variable.h"
#include "blackboard.h"
#ifdef LIMBOAI_MODULE
#include "core/io/resource.h"
#endif // LIMBOAI_MODULE
#ifdef LIMBOAI_GDEXTENSION
#include <godot_cpp/classes/resource.hpp>
using namespace godot;
#endif // LIMBOAI_GDEXTENSION
class BlackboardPlan : public Resource {
GDCLASS(BlackboardPlan, Resource);
private:
List<Pair<StringName, BBVariable>> var_list;
HashMap<StringName, BBVariable> var_map;
// When base is not null, the plan is considered to be derived from the base plan.
// A derived plan can only have variables that exist in the base plan,
// and only the values can be different in those variables.
Ref<BlackboardPlan> base;
// Mapping between variables in this plan and their parent scope names.
// Used for linking variables to their parent scope counterparts upon Blackboard creation/population.
HashMap<StringName, StringName> parent_scope_mapping;
// Fetcher function for the parent scope plan. Funtion should return a Ref<BlackboardPlan>.
// Used in the inspector. When set, mapping feature becomes available.
Callable parent_scope_plan_provider;
// If true, NodePath variables will be prefetched, so that the vars will contain node pointers instead (upon BB creation/population).
bool prefetch_nodepath_vars = true;
protected:
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
bool _property_can_revert(const StringName &p_name) const;
bool _property_get_revert(const StringName &p_name, Variant &r_property) const;
#ifdef LIMBOAI_GDEXTENSION
String _to_string() const { return "<" + get_class() + "#" + itos(get_instance_id()) + ">"; }
#endif
public:
void set_base_plan(const Ref<BlackboardPlan> &p_base);
Ref<BlackboardPlan> get_base_plan() const { return base; }
void set_parent_scope_plan_provider(const Callable &p_parent_scope_plan_provider);
Callable get_parent_scope_plan_provider() const { return parent_scope_plan_provider; }
bool is_mapping_enabled() const { return parent_scope_plan_provider.is_valid() && (parent_scope_plan_provider.call() != Ref<BlackboardPlan>()); }
bool has_mapping(const StringName &p_name) const;
void set_prefetch_nodepath_vars(bool p_enable);
bool is_prefetching_nodepath_vars() const;
void add_var(const StringName &p_name, const BBVariable &p_var);
void remove_var(const StringName &p_name);
BBVariable get_var(const StringName &p_name);
Pair<StringName, BBVariable> get_var_by_index(int p_index);
_FORCE_INLINE_ bool has_var(const StringName &p_name) { return var_map.has(p_name); }
_FORCE_INLINE_ bool is_empty() const { return var_map.is_empty(); }
int get_var_count() const { return var_map.size(); }
TypedArray<StringName> list_vars() const;
StringName get_var_name(const BBVariable &p_var) const;
bool is_valid_var_name(const StringName &p_name) const;
void rename_var(const StringName &p_name, const StringName &p_new_name);
void move_var(int p_index, int p_new_index);
void sync_with_base_plan();
_FORCE_INLINE_ bool is_derived() const { return base.is_valid(); }
_FORCE_INLINE_ bool is_derived_var_changed(const StringName &p_name) const { return base.is_valid() && var_map.has(p_name) && var_map[p_name].is_value_changed(); }
Ref<Blackboard> create_blackboard(Node *p_prefetch_root, const Ref<Blackboard> &p_parent_scope = Ref<Blackboard>(), Node *p_prefetch_root_for_base_plan = nullptr);
void populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite, Node *p_prefetch_root, Node *p_prefetch_root_for_base_plan = nullptr);
BlackboardPlan();
};
#endif // BLACKBOARD_PLAN_H