132 lines
5.6 KiB
C++
132 lines
5.6 KiB
C++
/**************************************************************************/
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/* gizmo_3d_helper.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#include "gizmo_3d_helper.h"
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#include "editor/editor_undo_redo_manager.h"
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#include "editor/plugins/node_3d_editor_plugin.h"
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#include "scene/3d/camera_3d.h"
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void Gizmo3DHelper::initialize_handle_action(const Variant &p_initial_value, const Transform3D &p_initial_transform) {
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initial_value = p_initial_value;
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initial_transform = p_initial_transform;
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}
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void Gizmo3DHelper::get_segment(Camera3D *p_camera, const Point2 &p_point, Vector3 *r_segment) {
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Transform3D gt = initial_transform;
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Transform3D gi = gt.affine_inverse();
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Vector3 ray_from = p_camera->project_ray_origin(p_point);
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Vector3 ray_dir = p_camera->project_ray_normal(p_point);
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r_segment[0] = gi.xform(ray_from);
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r_segment[1] = gi.xform(ray_from + ray_dir * 4096);
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}
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Vector<Vector3> Gizmo3DHelper::box_get_handles(const Vector3 &p_box_size) {
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Vector<Vector3> handles;
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for (int i = 0; i < 3; i++) {
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Vector3 ax;
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ax[i] = p_box_size[i] / 2;
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handles.push_back(ax);
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handles.push_back(-ax);
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}
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return handles;
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}
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String Gizmo3DHelper::box_get_handle_name(int p_id) const {
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switch (p_id) {
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case 0:
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case 1:
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return "Size X";
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case 2:
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case 3:
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return "Size Y";
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case 4:
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case 5:
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return "Size Z";
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}
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return "";
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}
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void Gizmo3DHelper::box_set_handle(const Vector3 p_segment[2], int p_id, Vector3 &r_box_size, Vector3 &r_box_position) {
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Vector3 axis;
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axis[p_id / 2] = 1.0;
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Vector3 ra, rb;
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int sign = p_id % 2 * -2 + 1;
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Vector3 initial_size = initial_value;
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Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096 * sign, p_segment[0], p_segment[1], ra, rb);
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if (ra[p_id / 2] == 0) {
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// Point before half of the shape. Needs to be calculated in opposite direction.
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Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096 * -sign, p_segment[0], p_segment[1], ra, rb);
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}
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float d = ra[p_id / 2] * sign;
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Vector3 he = r_box_size;
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he[p_id / 2] = d * 2;
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if (Node3DEditor::get_singleton()->is_snap_enabled()) {
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he[p_id / 2] = Math::snapped(he[p_id / 2], Node3DEditor::get_singleton()->get_translate_snap());
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}
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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he[p_id / 2] = MAX(he[p_id / 2], 0.001);
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r_box_size = he;
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r_box_position = initial_transform.get_origin();
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} else {
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he[p_id / 2] = MAX(he[p_id / 2], -initial_size[p_id / 2] + 0.002);
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r_box_size = (initial_size + (he - initial_size) * 0.5).abs();
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Vector3 pos = initial_transform.affine_inverse().xform(initial_transform.get_origin());
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pos += (r_box_size - initial_size) * 0.5 * sign;
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r_box_position = initial_transform.xform(pos);
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}
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}
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void Gizmo3DHelper::box_commit_handle(const String &p_action_name, bool p_cancel, Object *p_position_object, Object *p_size_object, const StringName &p_position_property, const StringName &p_size_property) {
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if (!p_size_object) {
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p_size_object = p_position_object;
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}
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if (p_cancel) {
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p_size_object->set(p_size_property, initial_value);
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p_position_object->set(p_position_property, initial_transform.get_origin());
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return;
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}
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EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
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ur->create_action(p_action_name);
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ur->add_do_property(p_size_object, p_size_property, p_size_object->get(p_size_property));
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ur->add_do_property(p_position_object, p_position_property, p_position_object->get(p_position_property));
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ur->add_undo_property(p_size_object, p_size_property, initial_value);
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ur->add_undo_property(p_position_object, p_position_property, initial_transform.get_origin());
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ur->commit_action();
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}
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