309 lines
11 KiB
C++
309 lines
11 KiB
C++
/**
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* behavior_tree_view.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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#ifdef TOOLS_ENABLED
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#include "behavior_tree_view.h"
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#include "../../bt/tasks/bt_task.h"
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#include "../../util/limbo_compat.h"
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#include "../../util/limbo_utility.h"
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#include "behavior_tree_data.h"
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#ifdef LIMBOAI_MODULE
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#include "core/math/color.h"
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#include "core/math/math_defs.h"
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#include "core/object/callable_method_pointer.h"
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#include "core/os/time.h"
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#include "core/typedefs.h"
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#include "editor/editor_scale.h"
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#include "editor/editor_settings.h"
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#include "scene/resources/style_box.h"
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#endif // LIMBOAI_MODULE
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#ifdef LIMBOAI_GDEXTENSION
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#include <godot_cpp/classes/editor_interface.hpp>
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#include <godot_cpp/classes/time.hpp>
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#endif // LIMBOAI_GDEXTENSION
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void BehaviorTreeView::_draw_running_status(Object *p_obj, Rect2 p_rect) {
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p_rect = p_rect.grow_side(SIDE_LEFT, p_rect.get_position().x);
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theme_cache.sbf_running->draw(tree->get_canvas_item(), p_rect);
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}
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void BehaviorTreeView::_draw_success_status(Object *p_obj, Rect2 p_rect) {
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p_rect = p_rect.grow_side(SIDE_LEFT, p_rect.get_position().x);
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theme_cache.sbf_success->draw(tree->get_canvas_item(), p_rect);
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}
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void BehaviorTreeView::_draw_failure_status(Object *p_obj, Rect2 p_rect) {
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p_rect = p_rect.grow_side(SIDE_LEFT, p_rect.get_position().x);
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theme_cache.sbf_failure->draw(tree->get_canvas_item(), p_rect);
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}
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void BehaviorTreeView::_item_collapsed(Object *p_obj) {
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TreeItem *item = Object::cast_to<TreeItem>(p_obj);
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if (!item) {
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return;
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}
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uint64_t id = item->get_metadata(0);
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bool collapsed = item->is_collapsed();
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if (!collapsed_ids.has(id) && collapsed) {
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collapsed_ids.push_back(item->get_metadata(0));
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} else if (collapsed_ids.has(id) && !collapsed) {
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collapsed_ids.erase(id);
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}
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}
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double BehaviorTreeView::_get_editor_scale() const {
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if (Engine::get_singleton()->is_editor_hint()) {
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return EDSCALE;
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} else {
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return 1.0;
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}
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}
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inline void _item_set_elapsed_time(TreeItem *p_item, double p_elapsed) {
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p_item->set_text(2, rtos(Math::snapped(p_elapsed, 0.01)).pad_decimals(2));
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}
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void BehaviorTreeView::update_tree(const Ref<BehaviorTreeData> &p_data) {
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update_data = p_data;
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update_pending = true;
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_notification(NOTIFICATION_PROCESS);
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}
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void BehaviorTreeView::_update_tree(const Ref<BehaviorTreeData> &p_data) {
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// Remember selected.
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uint64_t selected_id = 0;
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if (tree->get_selected()) {
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selected_id = tree->get_selected()->get_metadata(0);
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}
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if (last_root_id != 0 && p_data->tasks.size() > 0 && last_root_id == (uint64_t)p_data->tasks[0].id) {
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// * Update tree.
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// ! Update routine is built on assumption that the behavior tree does NOT mutate. With little work it could detect mutations.
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TreeItem *item = tree->get_root();
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int idx = 0;
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while (item) {
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ERR_FAIL_COND(idx >= p_data->tasks.size());
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const BTTask::Status current_status = (BTTask::Status)p_data->tasks[idx].status;
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const BTTask::Status last_status = VariantCaster<BTTask::Status>::cast(item->get_metadata(1));
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const bool status_changed = last_status != p_data->tasks[idx].status;
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if (status_changed) {
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item->set_metadata(1, current_status);
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if (current_status == BTTask::SUCCESS) {
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item->set_custom_draw(0, this, LW_NAME(_draw_success_status));
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item->set_icon(1, theme_cache.icon_success);
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} else if (current_status == BTTask::FAILURE) {
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item->set_custom_draw(0, this, LW_NAME(_draw_failure_status));
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item->set_icon(1, theme_cache.icon_failure);
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} else if (current_status == BTTask::RUNNING) {
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item->set_custom_draw(0, this, LW_NAME(_draw_running_status));
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item->set_icon(1, theme_cache.icon_running);
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} else {
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item->set_custom_draw(0, this, LW_NAME(_draw_fresh));
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item->set_icon(1, nullptr);
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}
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}
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if (status_changed || current_status == BTTask::RUNNING) {
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_item_set_elapsed_time(item, p_data->tasks[idx].elapsed_time);
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}
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if (item->get_first_child()) {
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item = item->get_first_child();
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} else if (item->get_next()) {
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item = item->get_next();
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} else {
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while (item) {
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item = item->get_parent();
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if (item && item->get_next()) {
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item = item->get_next();
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break;
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}
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}
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}
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idx += 1;
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}
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ERR_FAIL_COND(idx != p_data->tasks.size());
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} else {
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// * Create new tree.
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last_root_id = p_data->tasks.size() > 0 ? p_data->tasks[0].id : 0;
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tree->clear();
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TreeItem *parent = nullptr;
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List<Pair<TreeItem *, int>> parents;
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for (const BehaviorTreeData::TaskData &task_data : p_data->tasks) {
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// Figure out parent.
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parent = nullptr;
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if (parents.size()) {
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Pair<TreeItem *, int> &p = parents[0];
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parent = p.first;
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if (!(--p.second)) {
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// No children left, remove it.
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parents.pop_front();
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}
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}
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TreeItem *item = tree->create_item(parent);
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// Do this first because it resets properties of the cell...
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item->set_cell_mode(0, TreeItem::CELL_MODE_CUSTOM);
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item->set_cell_mode(1, TreeItem::CELL_MODE_ICON);
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item->set_metadata(0, task_data.id);
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item->set_metadata(1, task_data.status);
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item->set_text(0, task_data.name);
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if (task_data.is_custom_name) {
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item->set_custom_font(0, theme_cache.font_custom_name);
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}
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item->set_text_alignment(2, HORIZONTAL_ALIGNMENT_RIGHT);
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_item_set_elapsed_time(item, task_data.elapsed_time);
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String cors = (task_data.script_path.is_empty()) ? task_data.type_name : task_data.script_path;
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item->set_icon(0, LimboUtility::get_singleton()->get_task_icon(cors));
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item->set_icon_max_width(0, 16 * _get_editor_scale()); // Force user icon size.
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if (task_data.status == BTTask::SUCCESS) {
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item->set_custom_draw(0, this, LW_NAME(_draw_success_status));
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item->set_icon(1, theme_cache.icon_success);
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} else if (task_data.status == BTTask::FAILURE) {
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item->set_custom_draw(0, this, LW_NAME(_draw_failure_status));
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item->set_icon(1, theme_cache.icon_failure);
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} else if (task_data.status == BTTask::RUNNING) {
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item->set_custom_draw(0, this, LW_NAME(_draw_running_status));
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item->set_icon(1, theme_cache.icon_running);
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}
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if (task_data.id == selected_id) {
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tree->set_selected(item, 0);
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}
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if (collapsed_ids.has(task_data.id)) {
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item->set_collapsed(true);
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}
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// Add in front of parents stack if children are expected.
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if (task_data.num_children) {
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parents.push_front(Pair<TreeItem *, int>(item, task_data.num_children));
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}
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}
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}
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}
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void BehaviorTreeView::clear() {
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tree->clear();
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collapsed_ids.clear();
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last_root_id = 0;
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}
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void BehaviorTreeView::_do_update_theme_item_cache() {
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theme_cache.icon_running = LimboUtility::get_singleton()->get_task_icon("LimboExtraClock");
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theme_cache.icon_success = LimboUtility::get_singleton()->get_task_icon("BTAlwaysSucceed");
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theme_cache.icon_failure = LimboUtility::get_singleton()->get_task_icon("BTAlwaysFail");
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theme_cache.font_custom_name = get_theme_font(LW_NAME(bold), LW_NAME(EditorFonts));
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Color running_border = Color::html("#fea900");
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Color running_fill = Color(running_border, 0.1);
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Color success_border = Color::html("#2fa139");
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Color success_fill = Color(success_border, 0.1);
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Color failure_border = Color::html("#cd3838");
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Color failure_fill = Color(failure_border, 0.1);
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theme_cache.sbf_running.instantiate();
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theme_cache.sbf_running->set_border_color(running_border);
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theme_cache.sbf_running->set_bg_color(running_fill);
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theme_cache.sbf_running->set_border_width(SIDE_LEFT, 4.0);
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theme_cache.sbf_running->set_border_width(SIDE_RIGHT, 4.0);
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theme_cache.sbf_success.instantiate();
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theme_cache.sbf_success->set_border_color(success_border);
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theme_cache.sbf_success->set_bg_color(success_fill);
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theme_cache.sbf_success->set_border_width(SIDE_LEFT, 4.0);
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theme_cache.sbf_success->set_border_width(SIDE_RIGHT, 4.0);
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theme_cache.sbf_failure.instantiate();
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theme_cache.sbf_failure->set_border_color(failure_border);
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theme_cache.sbf_failure->set_bg_color(failure_fill);
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theme_cache.sbf_failure->set_border_width(SIDE_LEFT, 4.0);
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theme_cache.sbf_failure->set_border_width(SIDE_RIGHT, 4.0);
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double extra_spacing = 0.0;
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if (Engine::get_singleton()->is_editor_hint()) {
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extra_spacing = EDITOR_GET("interface/theme/additional_spacing");
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extra_spacing *= 2.0;
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}
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tree->set_column_clip_content(0, true);
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tree->set_column_custom_minimum_width(1, 18 * _get_editor_scale());
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Ref<Font> font = tree->get_theme_font(LW_NAME(font));
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int font_size = tree->get_theme_font_size(LW_NAME(font_size));
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int timings_size = font->get_string_size("00.00", HORIZONTAL_ALIGNMENT_RIGHT, -1, font_size).x + 16 + extra_spacing;
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tree->set_column_custom_minimum_width(2, timings_size * _get_editor_scale());
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}
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void BehaviorTreeView::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_READY: {
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tree->connect(LW_NAME(item_collapsed), callable_mp(this, &BehaviorTreeView::_item_collapsed));
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} break;
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
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case NOTIFICATION_TRANSLATION_CHANGED:
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case NOTIFICATION_THEME_CHANGED: {
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_do_update_theme_item_cache();
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} break;
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case NOTIFICATION_VISIBILITY_CHANGED: {
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set_process(is_visible_in_tree());
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} break;
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case NOTIFICATION_PROCESS: {
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int ticks_msec = Time::get_singleton()->get_ticks_msec();
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if (update_pending && (ticks_msec - last_update_msec) >= update_interval_msec) {
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_update_tree(update_data);
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update_pending = false;
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last_update_msec = ticks_msec;
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}
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} break;
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}
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}
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void BehaviorTreeView::_bind_methods() {
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ClassDB::bind_method(D_METHOD("_draw_running_status"), &BehaviorTreeView::_draw_running_status);
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ClassDB::bind_method(D_METHOD("_draw_success_status"), &BehaviorTreeView::_draw_success_status);
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ClassDB::bind_method(D_METHOD("_draw_failure_status"), &BehaviorTreeView::_draw_failure_status);
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ClassDB::bind_method(D_METHOD("_item_collapsed"), &BehaviorTreeView::_item_collapsed);
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ClassDB::bind_method(D_METHOD("update_tree", "p_behavior_tree_data"), &BehaviorTreeView::update_tree);
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ClassDB::bind_method(D_METHOD("set_update_interval_msec", "p_milliseconds"), &BehaviorTreeView::set_update_interval_msec);
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ClassDB::bind_method(D_METHOD("get_update_interval_msec"), &BehaviorTreeView::get_update_interval_msec);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "update_interval_msec"), "set_update_interval_msec", "get_update_interval_msec");
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}
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BehaviorTreeView::BehaviorTreeView() {
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tree = memnew(Tree);
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add_child(tree);
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tree->set_columns(3); // task | status icon | elapsed
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tree->set_column_expand(0, true);
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tree->set_column_expand(1, false);
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tree->set_column_expand(2, false);
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tree->set_anchor(SIDE_RIGHT, ANCHOR_END);
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tree->set_anchor(SIDE_BOTTOM, ANCHOR_END);
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}
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#endif // TOOLS_ENABLED
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