125 lines
4.8 KiB
C++
125 lines
4.8 KiB
C++
/* bt_player.cpp */
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#include "bt_player.h"
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#include "../limbo_string_names.h"
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#include "bt_task.h"
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#include "core/config/engine.h"
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#include "core/error/error_macros.h"
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#include "core/io/resource_loader.h"
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#include "core/object/class_db.h"
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#include "core/object/object.h"
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#include "core/os/memory.h"
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#include "core/variant/variant.h"
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#include "modules/limboai/blackboard.h"
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VARIANT_ENUM_CAST(BTPlayer::UpdateMode);
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void BTPlayer::_load_tree() {
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tree_instance.unref();
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ERR_FAIL_COND_MSG(!behavior_tree.is_valid(), "BTPlayer: Needs a valid behavior tree.");
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ERR_FAIL_COND_MSG(!behavior_tree->get_root_task().is_valid(), "BTPlayer: Behavior tree has no valid root task.");
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if (prefetch_nodepath_vars == true) {
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blackboard->prefetch_nodepath_vars(this);
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}
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tree_instance = behavior_tree->instantiate(get_owner(), blackboard);
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}
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void BTPlayer::set_behavior_tree(const Ref<BehaviorTree> &p_tree) {
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behavior_tree = p_tree;
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if (Engine::get_singleton()->is_editor_hint() == false && get_owner()) {
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_load_tree();
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}
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}
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void BTPlayer::set_update_mode(UpdateMode p_mode) {
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update_mode = p_mode;
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set_active(active);
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}
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void BTPlayer::set_active(bool p_active) {
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active = p_active;
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bool is_not_editor = !Engine::get_singleton()->is_editor_hint();
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set_process(update_mode == UpdateMode::IDLE && active && is_not_editor);
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set_physics_process(update_mode == UpdateMode::PHYSICS && active && is_not_editor);
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set_process_input(active && is_not_editor);
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}
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void BTPlayer::update(float p_delta) {
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if (!tree_instance.is_valid()) {
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ERR_PRINT_ONCE(vformat("BTPlayer doesn't have a behavior tree with a valid root task to execute (owner: %s)", get_owner()));
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return;
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}
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if (active) {
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last_status = tree_instance->execute(p_delta);
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if (last_status == BTTask::SUCCESS || last_status == BTTask::FAILURE) {
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emit_signal(LimboStringNames::get_singleton()->behavior_tree_finished, last_status);
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}
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}
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}
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void BTPlayer::restart() {
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tree_instance->cancel();
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set_active(true);
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}
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void BTPlayer::_notification(int p_notification) {
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switch (p_notification) {
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case NOTIFICATION_PROCESS: {
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Variant time = get_process_delta_time();
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update(time);
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} break;
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case NOTIFICATION_PHYSICS_PROCESS: {
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Variant time = get_process_delta_time();
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update(time);
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} break;
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case NOTIFICATION_READY: {
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if (!Engine::get_singleton()->is_editor_hint()) {
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if (behavior_tree.is_valid()) {
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_load_tree();
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}
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set_active(active);
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}
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} break;
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}
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}
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void BTPlayer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_behavior_tree", "p_path"), &BTPlayer::set_behavior_tree);
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ClassDB::bind_method(D_METHOD("get_behavior_tree"), &BTPlayer::get_behavior_tree);
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ClassDB::bind_method(D_METHOD("set_update_mode", "p_mode"), &BTPlayer::set_update_mode);
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ClassDB::bind_method(D_METHOD("get_update_mode"), &BTPlayer::get_update_mode);
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ClassDB::bind_method(D_METHOD("set_active", "p_active"), &BTPlayer::set_active);
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ClassDB::bind_method(D_METHOD("get_active"), &BTPlayer::get_active);
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ClassDB::bind_method(D_METHOD("set_blackboard", "p_blackboard"), &BTPlayer::set_blackboard);
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ClassDB::bind_method(D_METHOD("get_blackboard"), &BTPlayer::get_blackboard);
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ClassDB::bind_method(D_METHOD("set_prefetch_nodepath_vars", "p_value"), &BTPlayer::set_prefetch_nodepath_vars);
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ClassDB::bind_method(D_METHOD("get_prefetch_nodepath_vars"), &BTPlayer::get_prefetch_nodepath_vars);
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ClassDB::bind_method(D_METHOD("_set_blackboard_data", "p_blackboard"), &BTPlayer::_set_blackboard_data);
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ClassDB::bind_method(D_METHOD("_get_blackboard_data"), &BTPlayer::_get_blackboard_data);
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ClassDB::bind_method(D_METHOD("update", "p_delta"), &BTPlayer::update);
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ClassDB::bind_method(D_METHOD("restart"), &BTPlayer::restart);
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ClassDB::bind_method(D_METHOD("get_last_status"), &BTPlayer::get_last_status);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "behavior_tree", PROPERTY_HINT_RESOURCE_TYPE, "BehaviorTree"), "set_behavior_tree", "get_behavior_tree");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "update_mode", PROPERTY_HINT_ENUM, "Idle,Physics,Manual"), "set_update_mode", "get_update_mode");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "active"), "set_active", "get_active");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "blackboard", PROPERTY_HINT_NONE, "Blackboard", 0), "", "get_blackboard");
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ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_blackboard_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_INTERNAL), "_set_blackboard_data", "_get_blackboard_data");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "prefetch_nodepath_vars"), "set_prefetch_nodepath_vars", "get_prefetch_nodepath_vars");
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BIND_ENUM_CONSTANT(IDLE);
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BIND_ENUM_CONSTANT(PHYSICS);
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BIND_ENUM_CONSTANT(MANUAL);
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ADD_SIGNAL(MethodInfo("behavior_tree_finished", PropertyInfo(Variant::INT, "p_status")));
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}
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BTPlayer::BTPlayer() {
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blackboard = Ref<Blackboard>(memnew(Blackboard));
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}
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BTPlayer::~BTPlayer() {
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} |