d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
444 lines
15 KiB
C++
444 lines
15 KiB
C++
/**************************************************************************/
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/* node_2d.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 "node_2d.h"
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#include "scene/main/viewport.h"
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#ifdef TOOLS_ENABLED
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Dictionary Node2D::_edit_get_state() const {
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Dictionary state;
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state["position"] = get_position();
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state["rotation"] = get_rotation();
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state["scale"] = get_scale();
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state["skew"] = get_skew();
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return state;
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}
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void Node2D::_edit_set_state(const Dictionary &p_state) {
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position = p_state["position"];
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rotation = p_state["rotation"];
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scale = p_state["scale"];
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skew = p_state["skew"];
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_update_transform();
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}
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void Node2D::_edit_set_position(const Point2 &p_position) {
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set_position(p_position);
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}
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Point2 Node2D::_edit_get_position() const {
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return position;
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}
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void Node2D::_edit_set_scale(const Size2 &p_scale) {
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set_scale(p_scale);
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}
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Size2 Node2D::_edit_get_scale() const {
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return scale;
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}
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void Node2D::_edit_set_rotation(real_t p_rotation) {
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rotation = p_rotation;
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_update_transform();
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}
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real_t Node2D::_edit_get_rotation() const {
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return rotation;
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}
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bool Node2D::_edit_use_rotation() const {
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return true;
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}
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void Node2D::_edit_set_rect(const Rect2 &p_edit_rect) {
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ERR_FAIL_COND(!_edit_use_rect());
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Rect2 r = _edit_get_rect();
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Vector2 zero_offset;
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Size2 new_scale(1, 1);
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if (r.size.x != 0) {
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zero_offset.x = -r.position.x / r.size.x;
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new_scale.x = p_edit_rect.size.x / r.size.x;
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}
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if (r.size.y != 0) {
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zero_offset.y = -r.position.y / r.size.y;
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new_scale.y = p_edit_rect.size.y / r.size.y;
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}
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Point2 new_pos = p_edit_rect.position + p_edit_rect.size * zero_offset;
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Transform2D postxf;
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postxf.set_rotation_scale_and_skew(rotation, scale, skew);
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new_pos = postxf.xform(new_pos);
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position += new_pos;
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scale *= new_scale;
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_update_transform();
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}
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#endif
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void Node2D::_update_xform_values() {
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position = transform.columns[2];
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rotation = transform.get_rotation();
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scale = transform.get_scale();
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skew = transform.get_skew();
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_xform_dirty = false;
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}
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void Node2D::_update_transform() {
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transform.set_rotation_scale_and_skew(rotation, scale, skew);
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transform.columns[2] = position;
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RenderingServer::get_singleton()->canvas_item_set_transform(get_canvas_item(), transform);
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if (!is_inside_tree()) {
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return;
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}
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_notify_transform();
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}
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void Node2D::set_position(const Point2 &p_pos) {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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position = p_pos;
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_update_transform();
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}
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void Node2D::set_rotation(real_t p_radians) {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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rotation = p_radians;
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_update_transform();
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}
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void Node2D::set_rotation_degrees(real_t p_degrees) {
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set_rotation(Math::deg_to_rad(p_degrees));
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}
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void Node2D::set_skew(real_t p_radians) {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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skew = p_radians;
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_update_transform();
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}
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void Node2D::set_scale(const Size2 &p_scale) {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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scale = p_scale;
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// Avoid having 0 scale values, can lead to errors in physics and rendering.
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if (Math::is_zero_approx(scale.x)) {
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scale.x = CMP_EPSILON;
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}
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if (Math::is_zero_approx(scale.y)) {
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scale.y = CMP_EPSILON;
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}
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_update_transform();
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}
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Point2 Node2D::get_position() const {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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return position;
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}
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real_t Node2D::get_rotation() const {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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return rotation;
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}
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real_t Node2D::get_rotation_degrees() const {
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return Math::rad_to_deg(get_rotation());
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}
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real_t Node2D::get_skew() const {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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return skew;
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}
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Size2 Node2D::get_scale() const {
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if (_xform_dirty) {
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const_cast<Node2D *>(this)->_update_xform_values();
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}
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return scale;
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}
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Transform2D Node2D::get_transform() const {
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return transform;
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}
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void Node2D::rotate(real_t p_radians) {
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set_rotation(get_rotation() + p_radians);
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}
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void Node2D::translate(const Vector2 &p_amount) {
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set_position(get_position() + p_amount);
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}
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void Node2D::global_translate(const Vector2 &p_amount) {
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set_global_position(get_global_position() + p_amount);
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}
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void Node2D::apply_scale(const Size2 &p_amount) {
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set_scale(get_scale() * p_amount);
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}
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void Node2D::move_x(real_t p_delta, bool p_scaled) {
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Transform2D t = get_transform();
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Vector2 m = t[0];
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if (!p_scaled) {
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m.normalize();
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}
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set_position(t[2] + m * p_delta);
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}
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void Node2D::move_y(real_t p_delta, bool p_scaled) {
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Transform2D t = get_transform();
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Vector2 m = t[1];
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if (!p_scaled) {
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m.normalize();
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}
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set_position(t[2] + m * p_delta);
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}
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Point2 Node2D::get_global_position() const {
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return get_global_transform().get_origin();
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}
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void Node2D::set_global_position(const Point2 &p_pos) {
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CanvasItem *parent = get_parent_item();
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if (parent) {
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Transform2D inv = parent->get_global_transform().affine_inverse();
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set_position(inv.xform(p_pos));
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} else {
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set_position(p_pos);
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}
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}
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real_t Node2D::get_global_rotation() const {
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return get_global_transform().get_rotation();
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}
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real_t Node2D::get_global_rotation_degrees() const {
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return Math::rad_to_deg(get_global_rotation());
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}
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real_t Node2D::get_global_skew() const {
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return get_global_transform().get_skew();
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}
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void Node2D::set_global_rotation(const real_t p_radians) {
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CanvasItem *parent = get_parent_item();
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if (parent) {
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Transform2D parent_global_transform = parent->get_global_transform();
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Transform2D new_transform = parent_global_transform * get_transform();
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new_transform.set_rotation(p_radians);
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new_transform = parent_global_transform.affine_inverse() * new_transform;
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set_rotation(new_transform.get_rotation());
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} else {
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set_rotation(p_radians);
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}
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}
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void Node2D::set_global_rotation_degrees(const real_t p_degrees) {
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set_global_rotation(Math::deg_to_rad(p_degrees));
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}
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void Node2D::set_global_skew(const real_t p_radians) {
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CanvasItem *parent = get_parent_item();
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if (parent) {
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Transform2D parent_global_transform = parent->get_global_transform();
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Transform2D new_transform = parent_global_transform * get_transform();
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new_transform.set_skew(p_radians);
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new_transform = parent_global_transform.affine_inverse() * new_transform;
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set_skew(new_transform.get_skew());
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} else {
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set_skew(p_radians);
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}
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}
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Size2 Node2D::get_global_scale() const {
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return get_global_transform().get_scale();
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}
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void Node2D::set_global_scale(const Size2 &p_scale) {
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CanvasItem *parent = get_parent_item();
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if (parent) {
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Transform2D parent_global_transform = parent->get_global_transform();
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Transform2D new_transform = parent_global_transform * get_transform();
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new_transform.set_scale(p_scale);
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new_transform = parent_global_transform.affine_inverse() * new_transform;
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set_scale(new_transform.get_scale());
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} else {
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set_scale(p_scale);
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}
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}
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void Node2D::set_transform(const Transform2D &p_transform) {
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transform = p_transform;
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_xform_dirty = true;
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RenderingServer::get_singleton()->canvas_item_set_transform(get_canvas_item(), transform);
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if (!is_inside_tree()) {
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return;
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}
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_notify_transform();
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}
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void Node2D::set_global_transform(const Transform2D &p_transform) {
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CanvasItem *parent = get_parent_item();
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if (parent) {
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set_transform(parent->get_global_transform().affine_inverse() * p_transform);
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} else {
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set_transform(p_transform);
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}
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}
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Transform2D Node2D::get_relative_transform_to_parent(const Node *p_parent) const {
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if (p_parent == this) {
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return Transform2D();
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}
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Node2D *parent_2d = Object::cast_to<Node2D>(get_parent());
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ERR_FAIL_COND_V(!parent_2d, Transform2D());
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if (p_parent == parent_2d) {
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return get_transform();
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} else {
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return parent_2d->get_relative_transform_to_parent(p_parent) * get_transform();
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}
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}
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void Node2D::look_at(const Vector2 &p_pos) {
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rotate(get_angle_to(p_pos));
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}
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real_t Node2D::get_angle_to(const Vector2 &p_pos) const {
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return (to_local(p_pos) * get_scale()).angle();
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}
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Point2 Node2D::to_local(Point2 p_global) const {
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return get_global_transform().affine_inverse().xform(p_global);
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}
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Point2 Node2D::to_global(Point2 p_local) const {
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return get_global_transform().xform(p_local);
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}
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void Node2D::_notification(int p_notification) {
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switch (p_notification) {
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case NOTIFICATION_MOVED_IN_PARENT: {
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if (get_viewport()) {
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get_viewport()->gui_set_root_order_dirty();
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}
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} break;
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}
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}
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void Node2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_position", "position"), &Node2D::set_position);
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ClassDB::bind_method(D_METHOD("set_rotation", "radians"), &Node2D::set_rotation);
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ClassDB::bind_method(D_METHOD("set_rotation_degrees", "degrees"), &Node2D::set_rotation_degrees);
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ClassDB::bind_method(D_METHOD("set_skew", "radians"), &Node2D::set_skew);
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ClassDB::bind_method(D_METHOD("set_scale", "scale"), &Node2D::set_scale);
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ClassDB::bind_method(D_METHOD("get_position"), &Node2D::get_position);
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ClassDB::bind_method(D_METHOD("get_rotation"), &Node2D::get_rotation);
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ClassDB::bind_method(D_METHOD("get_rotation_degrees"), &Node2D::get_rotation_degrees);
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ClassDB::bind_method(D_METHOD("get_skew"), &Node2D::get_skew);
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ClassDB::bind_method(D_METHOD("get_scale"), &Node2D::get_scale);
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ClassDB::bind_method(D_METHOD("rotate", "radians"), &Node2D::rotate);
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ClassDB::bind_method(D_METHOD("move_local_x", "delta", "scaled"), &Node2D::move_x, DEFVAL(false));
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ClassDB::bind_method(D_METHOD("move_local_y", "delta", "scaled"), &Node2D::move_y, DEFVAL(false));
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ClassDB::bind_method(D_METHOD("translate", "offset"), &Node2D::translate);
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ClassDB::bind_method(D_METHOD("global_translate", "offset"), &Node2D::global_translate);
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ClassDB::bind_method(D_METHOD("apply_scale", "ratio"), &Node2D::apply_scale);
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ClassDB::bind_method(D_METHOD("set_global_position", "position"), &Node2D::set_global_position);
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ClassDB::bind_method(D_METHOD("get_global_position"), &Node2D::get_global_position);
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ClassDB::bind_method(D_METHOD("set_global_rotation", "radians"), &Node2D::set_global_rotation);
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ClassDB::bind_method(D_METHOD("set_global_rotation_degrees", "degrees"), &Node2D::set_global_rotation_degrees);
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ClassDB::bind_method(D_METHOD("get_global_rotation"), &Node2D::get_global_rotation);
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ClassDB::bind_method(D_METHOD("get_global_rotation_degrees"), &Node2D::get_global_rotation_degrees);
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ClassDB::bind_method(D_METHOD("set_global_skew", "radians"), &Node2D::set_global_skew);
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ClassDB::bind_method(D_METHOD("get_global_skew"), &Node2D::get_global_skew);
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ClassDB::bind_method(D_METHOD("set_global_scale", "scale"), &Node2D::set_global_scale);
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ClassDB::bind_method(D_METHOD("get_global_scale"), &Node2D::get_global_scale);
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ClassDB::bind_method(D_METHOD("set_transform", "xform"), &Node2D::set_transform);
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ClassDB::bind_method(D_METHOD("set_global_transform", "xform"), &Node2D::set_global_transform);
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ClassDB::bind_method(D_METHOD("look_at", "point"), &Node2D::look_at);
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ClassDB::bind_method(D_METHOD("get_angle_to", "point"), &Node2D::get_angle_to);
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ClassDB::bind_method(D_METHOD("to_local", "global_point"), &Node2D::to_local);
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ClassDB::bind_method(D_METHOD("to_global", "local_point"), &Node2D::to_global);
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ClassDB::bind_method(D_METHOD("get_relative_transform_to_parent", "parent"), &Node2D::get_relative_transform_to_parent);
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ADD_GROUP("Transform", "");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "position", PROPERTY_HINT_RANGE, "-99999,99999,0.001,or_less,or_greater,hide_slider,suffix:px"), "set_position", "get_position");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "rotation", PROPERTY_HINT_RANGE, "-360,360,0.1,or_less,or_greater,radians"), "set_rotation", "get_rotation");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "rotation_degrees", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_rotation_degrees", "get_rotation_degrees");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scale", PROPERTY_HINT_LINK), "set_scale", "get_scale");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "skew", PROPERTY_HINT_RANGE, "-89.9,89.9,0.1,radians"), "set_skew", "get_skew");
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ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "transform", PROPERTY_HINT_NONE, "suffix:px", PROPERTY_USAGE_NONE), "set_transform", "get_transform");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "global_position", PROPERTY_HINT_NONE, "suffix:px", PROPERTY_USAGE_NONE), "set_global_position", "get_global_position");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "global_rotation", PROPERTY_HINT_NONE, "radians", PROPERTY_USAGE_NONE), "set_global_rotation", "get_global_rotation");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "global_rotation_degrees", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_global_rotation_degrees", "get_global_rotation_degrees");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "global_scale", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_global_scale", "get_global_scale");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "global_skew", PROPERTY_HINT_NONE, "radians", PROPERTY_USAGE_NONE), "set_global_skew", "get_global_skew");
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ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "global_transform", PROPERTY_HINT_NONE, "suffix:px", PROPERTY_USAGE_NONE), "set_global_transform", "get_global_transform");
|
|
}
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