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+/*************************************************************************/
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+/* ray_cast_2d_editor_plugin.cpp */
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+/*************************************************************************/
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+/* This file is part of: */
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+/* GODOT ENGINE */
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+/* https://godotengine.org */
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+/*************************************************************************/
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+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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+/* */
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+/* Permission is hereby granted, free of charge, to any person obtaining */
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+/* a copy of this software and associated documentation files (the */
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+/* "Software"), to deal in the Software without restriction, including */
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+/* without limitation the rights to use, copy, modify, merge, publish, */
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+/* distribute, sublicense, and/or sell copies of the Software, and to */
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+/* permit persons to whom the Software is furnished to do so, subject to */
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+/* the following conditions: */
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+/* */
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+/* The above copyright notice and this permission notice shall be */
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+/* included in all copies or substantial portions of the Software. */
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+/* */
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+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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+/*************************************************************************/
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+
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+#include "ray_cast_2d_editor_plugin.h"
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+
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+#include "canvas_item_editor_plugin.h"
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+#include "editor/editor_node.h"
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+
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+void RayCast2DEditor::_notification(int p_what) {
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+ switch (p_what) {
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+ case NOTIFICATION_ENTER_TREE: {
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+ get_tree()->connect("node_removed", callable_mp(this, &RayCast2DEditor::_node_removed));
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+ } break;
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+
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+ case NOTIFICATION_EXIT_TREE: {
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+ get_tree()->disconnect("node_removed", callable_mp(this, &RayCast2DEditor::_node_removed));
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+ } break;
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+ }
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+}
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+
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+void RayCast2DEditor::_node_removed(Node *p_node) {
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+ if (p_node == node) {
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+ node = nullptr;
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+ }
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+}
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+
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+bool RayCast2DEditor::forward_canvas_gui_input(const Ref<InputEvent> &p_event) {
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+ if (!node || !node->is_visible_in_tree()) {
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+ return false;
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+ }
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+
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+ Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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+
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+ Ref<InputEventMouseButton> mb = p_event;
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+ if (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT) {
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+ if (mb->is_pressed()) {
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+ if (xform.xform(node->get_target_position()).distance_to(mb->get_position()) < 8) {
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+ pressed = true;
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+ original_target_position = node->get_target_position();
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+
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+ return true;
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+ } else {
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+ pressed = false;
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+
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+ return false;
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+ }
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+ } else if (pressed) {
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+ undo_redo->create_action(TTR("Set target_position"));
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+ undo_redo->add_do_method(node, "set_target_position", node->get_target_position());
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+ undo_redo->add_do_method(canvas_item_editor, "update_viewport");
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+ undo_redo->add_undo_method(node, "set_target_position", original_target_position);
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+ undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
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+ undo_redo->commit_action();
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+
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+ pressed = false;
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+
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+ return true;
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+ }
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+ }
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+
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+ Ref<InputEventMouseMotion> mm = p_event;
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+ if (mm.is_valid() && pressed) {
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+ Vector2 point = canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(mm->get_position()));
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+ point = node->get_global_transform().affine_inverse().xform(point);
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+
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+ node->set_target_position(point);
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+ canvas_item_editor->update_viewport();
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+ node->notify_property_list_changed();
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+
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+ return true;
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+ }
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+
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+ return false;
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+}
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+
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+void RayCast2DEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
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+ if (!node || !node->is_visible_in_tree()) {
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+ return;
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+ }
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+
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+ Transform2D gt = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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+
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+ const Ref<Texture2D> handle = get_theme_icon(SNAME("EditorHandle"), SNAME("EditorIcons"));
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+ p_overlay->draw_texture(handle, gt.xform(node->get_target_position()) - handle->get_size() / 2);
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+}
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+
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+void RayCast2DEditor::edit(Node *p_node) {
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+ if (!canvas_item_editor) {
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+ canvas_item_editor = CanvasItemEditor::get_singleton();
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+ }
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+
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+ if (p_node) {
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+ node = Object::cast_to<RayCast2D>(p_node);
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+ } else {
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+ node = nullptr;
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+ }
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+
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+ canvas_item_editor->update_viewport();
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+}
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+
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+RayCast2DEditor::RayCast2DEditor() {
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+ undo_redo = EditorNode::get_singleton()->get_undo_redo();
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+}
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+
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+///////////////////////
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+
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+void RayCast2DEditorPlugin::edit(Object *p_object) {
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+ ray_cast_2d_editor->edit(Object::cast_to<RayCast2D>(p_object));
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+}
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+
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+bool RayCast2DEditorPlugin::handles(Object *p_object) const {
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+ return Object::cast_to<RayCast2D>(p_object) != nullptr;
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+}
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+
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+void RayCast2DEditorPlugin::make_visible(bool p_visible) {
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+ if (!p_visible) {
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+ edit(nullptr);
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+ }
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+}
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+
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+RayCast2DEditorPlugin::RayCast2DEditorPlugin() {
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+ ray_cast_2d_editor = memnew(RayCast2DEditor);
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+ EditorNode::get_singleton()->get_gui_base()->add_child(ray_cast_2d_editor);
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+}
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Rémi Verschelde