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237 lines
8.8 KiB
C++
237 lines
8.8 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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int axis = p_id / 2;
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int sign = p_id % 2 * -2 + 1;
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Vector3 initial_size = initial_value;
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float neg_end = initial_size[axis] * -0.5;
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float pos_end = initial_size[axis] * 0.5;
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Vector3 axis_segment[2] = { Vector3(), Vector3() };
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axis_segment[0][axis] = 4096.0;
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axis_segment[1][axis] = -4096.0;
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Vector3 ra, rb;
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Geometry3D::get_closest_points_between_segments(axis_segment[0], axis_segment[1], p_segment[0], p_segment[1], ra, rb);
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// Calculate new size.
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r_box_size = initial_size;
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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r_box_size[axis] = ra[axis] * sign * 2;
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} else {
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r_box_size[axis] = sign > 0 ? ra[axis] - neg_end : pos_end - ra[axis];
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}
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// Snap to grid.
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if (Node3DEditor::get_singleton()->is_snap_enabled()) {
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r_box_size[axis] = Math::snapped(r_box_size[axis], Node3DEditor::get_singleton()->get_translate_snap());
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}
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r_box_size[axis] = MAX(r_box_size[axis], 0.001);
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// Adjust position.
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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r_box_position = initial_transform.get_origin();
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} else {
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if (sign > 0) {
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pos_end = neg_end + r_box_size[axis];
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} else {
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neg_end = pos_end - r_box_size[axis];
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}
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Vector3 offset;
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offset[axis] = (pos_end + neg_end) * 0.5;
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r_box_position = initial_transform.xform(offset);
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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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Vector<Vector3> Gizmo3DHelper::cylinder_get_handles(real_t p_height, real_t p_radius) {
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Vector<Vector3> handles;
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handles.push_back(Vector3(p_radius, 0, 0));
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handles.push_back(Vector3(0, p_height * 0.5, 0));
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handles.push_back(Vector3(0, p_height * -0.5, 0));
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return handles;
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}
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String Gizmo3DHelper::cylinder_get_handle_name(int p_id) const {
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if (p_id == 0) {
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return "Radius";
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} else {
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return "Height";
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}
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}
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void Gizmo3DHelper::cylinder_set_handle(const Vector3 p_segment[2], int p_id, real_t &r_height, real_t &r_radius, Vector3 &r_cylinder_position) {
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int sign = p_id == 2 ? -1 : 1;
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int axis = p_id == 0 ? 0 : 1;
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Vector3 axis_vector;
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axis_vector[axis] = sign;
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Vector3 ra, rb;
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Geometry3D::get_closest_points_between_segments(axis_vector * -4096, axis_vector * 4096, p_segment[0], p_segment[1], ra, rb);
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float d = axis_vector.dot(ra);
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// Snap to grid.
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if (Node3DEditor::get_singleton()->is_snap_enabled()) {
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d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
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}
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if (p_id == 0) {
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// Adjust radius.
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if (d < 0.001) {
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d = 0.001;
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}
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r_radius = d;
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r_cylinder_position = initial_transform.get_origin();
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} else if (p_id == 1 || p_id == 2) {
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real_t initial_height = initial_value;
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// Adjust height.
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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r_height = d * 2.0;
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} else {
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r_height = (initial_height * 0.5) + d;
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}
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if (r_height < 0.001) {
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r_height = 0.001;
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}
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// Adjust position.
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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r_cylinder_position = initial_transform.get_origin();
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} else {
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Vector3 offset;
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offset[axis] = (r_height - initial_height) * 0.5 * sign;
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r_cylinder_position = initial_transform.xform(offset);
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}
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}
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}
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void Gizmo3DHelper::cylinder_commit_handle(int p_id, const String &p_radius_action_name, const String &p_height_action_name, bool p_cancel, Object *p_position_object, Object *p_height_object, Object *p_radius_object, const StringName &p_position_property, const StringName &p_height_property, const StringName &p_radius_property) {
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if (!p_height_object) {
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p_height_object = p_position_object;
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}
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if (!p_radius_object) {
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p_radius_object = p_position_object;
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}
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if (p_cancel) {
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if (p_id == 0) {
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p_radius_object->set(p_radius_property, initial_value);
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} else {
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p_height_object->set(p_height_property, initial_value);
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}
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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_id == 0 ? p_radius_action_name : p_height_action_name);
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if (p_id == 0) {
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ur->add_do_property(p_radius_object, p_radius_property, p_radius_object->get(p_radius_property));
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ur->add_undo_property(p_radius_object, p_radius_property, initial_value);
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} else {
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ur->add_do_property(p_height_object, p_height_property, p_height_object->get(p_height_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_height_object, p_height_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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}
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ur->commit_action();
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}
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