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".
428 lines
14 KiB
C++
428 lines
14 KiB
C++
/**************************************************************************/
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/* path_3d.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 "path_3d.h"
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Path3D::Path3D() {
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SceneTree *st = SceneTree::get_singleton();
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if (st && st->is_debugging_paths_hint()) {
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debug_instance = RS::get_singleton()->instance_create();
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set_notify_transform(true);
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_update_debug_mesh();
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}
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}
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Path3D::~Path3D() {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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if (debug_instance.is_valid()) {
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RS::get_singleton()->free(debug_instance);
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}
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if (debug_mesh.is_valid()) {
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RS::get_singleton()->free(debug_mesh->get_rid());
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}
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}
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void Path3D::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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SceneTree *st = SceneTree::get_singleton();
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if (st && st->is_debugging_paths_hint()) {
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_update_debug_mesh();
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}
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} break;
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case NOTIFICATION_EXIT_TREE: {
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SceneTree *st = SceneTree::get_singleton();
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if (st && st->is_debugging_paths_hint()) {
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RS::get_singleton()->instance_set_visible(debug_instance, false);
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}
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} break;
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case NOTIFICATION_TRANSFORM_CHANGED: {
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if (is_inside_tree() && debug_instance.is_valid()) {
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RS::get_singleton()->instance_set_transform(debug_instance, get_global_transform());
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}
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} break;
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}
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}
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void Path3D::_update_debug_mesh() {
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SceneTree *st = SceneTree::get_singleton();
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if (!(st && st->is_debugging_paths_hint())) {
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return;
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}
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if (!debug_mesh.is_valid()) {
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debug_mesh = Ref<ArrayMesh>(memnew(ArrayMesh));
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}
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if (!(curve.is_valid())) {
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RS::get_singleton()->instance_set_visible(debug_instance, false);
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return;
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}
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if (curve->get_point_count() < 2) {
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RS::get_singleton()->instance_set_visible(debug_instance, false);
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return;
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}
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Vector<Vector3> vertex_array;
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for (int i = 1; i < curve->get_point_count(); i++) {
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Vector3 line_end = curve->get_point_position(i);
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Vector3 line_start = curve->get_point_position(i - 1);
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vertex_array.push_back(line_start);
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vertex_array.push_back(line_end);
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}
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Array mesh_array;
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mesh_array.resize(Mesh::ARRAY_MAX);
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mesh_array[Mesh::ARRAY_VERTEX] = vertex_array;
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debug_mesh->clear_surfaces();
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debug_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, mesh_array);
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RS::get_singleton()->instance_set_base(debug_instance, debug_mesh->get_rid());
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RS::get_singleton()->mesh_surface_set_material(debug_mesh->get_rid(), 0, st->get_debug_paths_material()->get_rid());
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if (is_inside_tree()) {
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RS::get_singleton()->instance_set_scenario(debug_instance, get_world_3d()->get_scenario());
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RS::get_singleton()->instance_set_transform(debug_instance, get_global_transform());
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RS::get_singleton()->instance_set_visible(debug_instance, is_visible_in_tree());
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}
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}
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void Path3D::_curve_changed() {
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if (is_inside_tree() && Engine::get_singleton()->is_editor_hint()) {
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update_gizmos();
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}
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if (is_inside_tree()) {
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emit_signal(SNAME("curve_changed"));
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}
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// update the configuration warnings of all children of type PathFollow
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// previously used for PathFollowOriented (now enforced orientation is done in PathFollow)
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if (is_inside_tree()) {
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for (int i = 0; i < get_child_count(); i++) {
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PathFollow3D *child = Object::cast_to<PathFollow3D>(get_child(i));
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if (child) {
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child->update_configuration_warnings();
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}
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}
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}
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SceneTree *st = SceneTree::get_singleton();
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if (st && st->is_debugging_paths_hint()) {
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_update_debug_mesh();
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}
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}
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void Path3D::set_curve(const Ref<Curve3D> &p_curve) {
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if (curve.is_valid()) {
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curve->disconnect("changed", callable_mp(this, &Path3D::_curve_changed));
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}
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curve = p_curve;
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if (curve.is_valid()) {
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curve->connect("changed", callable_mp(this, &Path3D::_curve_changed));
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}
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_curve_changed();
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}
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Ref<Curve3D> Path3D::get_curve() const {
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return curve;
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}
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void Path3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_curve", "curve"), &Path3D::set_curve);
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ClassDB::bind_method(D_METHOD("get_curve"), &Path3D::get_curve);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve3D", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_EDITOR_INSTANTIATE_OBJECT), "set_curve", "get_curve");
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ADD_SIGNAL(MethodInfo("curve_changed"));
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}
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//////////////
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void PathFollow3D::_update_transform(bool p_update_xyz_rot) {
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if (!path) {
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return;
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}
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Ref<Curve3D> c = path->get_curve();
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if (!c.is_valid()) {
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return;
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}
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real_t bl = c->get_baked_length();
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if (bl == 0.0) {
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return;
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}
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Transform3D t;
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if (rotation_mode == ROTATION_NONE) {
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Vector3 pos = c->sample_baked(progress, cubic);
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t.origin = pos;
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} else {
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t = c->sample_baked_with_rotation(progress, cubic, false);
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Vector3 forward = t.basis.get_column(2); // Retain tangent for applying tilt
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t = PathFollow3D::correct_posture(t, rotation_mode);
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// Apply tilt *after* correct_posture
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if (tilt_enabled) {
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const real_t tilt = c->sample_baked_tilt(progress);
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const Basis twist(forward, tilt);
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t.basis = twist * t.basis;
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}
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}
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Vector3 scale = get_transform().basis.get_scale();
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t.translate_local(Vector3(h_offset, v_offset, 0));
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t.basis.scale_local(scale);
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set_transform(t);
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}
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void PathFollow3D::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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Node *parent = get_parent();
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if (parent) {
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path = Object::cast_to<Path3D>(parent);
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if (path) {
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_update_transform(false);
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}
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}
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} break;
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case NOTIFICATION_EXIT_TREE: {
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path = nullptr;
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} break;
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}
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}
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void PathFollow3D::set_cubic_interpolation(bool p_enable) {
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cubic = p_enable;
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}
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bool PathFollow3D::get_cubic_interpolation() const {
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return cubic;
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}
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void PathFollow3D::_validate_property(PropertyInfo &p_property) const {
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if (p_property.name == "offset") {
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real_t max = 10000;
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if (path && path->get_curve().is_valid()) {
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max = path->get_curve()->get_baked_length();
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}
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p_property.hint_string = "0," + rtos(max) + ",0.01,or_less,or_greater";
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}
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}
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PackedStringArray PathFollow3D::get_configuration_warnings() const {
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PackedStringArray warnings = Node::get_configuration_warnings();
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if (is_visible_in_tree() && is_inside_tree()) {
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if (!Object::cast_to<Path3D>(get_parent())) {
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warnings.push_back(RTR("PathFollow3D only works when set as a child of a Path3D node."));
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} else {
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Path3D *p = Object::cast_to<Path3D>(get_parent());
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if (p->get_curve().is_valid() && !p->get_curve()->is_up_vector_enabled() && rotation_mode == ROTATION_ORIENTED) {
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warnings.push_back(RTR("PathFollow3D's ROTATION_ORIENTED requires \"Up Vector\" to be enabled in its parent Path3D's Curve resource."));
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}
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}
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}
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return warnings;
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}
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Transform3D PathFollow3D::correct_posture(Transform3D p_transform, PathFollow3D::RotationMode p_rotation_mode) {
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Transform3D t = p_transform;
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// Modify frame according to rotation mode.
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if (p_rotation_mode == PathFollow3D::ROTATION_NONE) {
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// Clear rotation.
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t.basis = Basis();
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} else if (p_rotation_mode == PathFollow3D::ROTATION_ORIENTED) {
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// Y-axis always straight up.
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Vector3 up(0.0, 1.0, 0.0);
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Vector3 forward = t.basis.get_column(2);
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t.basis = Basis::looking_at(-forward, up);
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} else {
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// Lock some euler axes.
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Vector3 euler = t.basis.get_euler_normalized(EulerOrder::YXZ);
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if (p_rotation_mode == PathFollow3D::ROTATION_Y) {
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// Only Y-axis allowed.
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euler[0] = 0;
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euler[2] = 0;
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} else if (p_rotation_mode == PathFollow3D::ROTATION_XY) {
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// XY allowed.
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euler[2] = 0;
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}
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Basis locked = Basis::from_euler(euler, EulerOrder::YXZ);
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t.basis = locked;
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}
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return t;
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}
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void PathFollow3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_progress", "progress"), &PathFollow3D::set_progress);
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ClassDB::bind_method(D_METHOD("get_progress"), &PathFollow3D::get_progress);
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ClassDB::bind_method(D_METHOD("set_h_offset", "h_offset"), &PathFollow3D::set_h_offset);
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ClassDB::bind_method(D_METHOD("get_h_offset"), &PathFollow3D::get_h_offset);
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ClassDB::bind_method(D_METHOD("set_v_offset", "v_offset"), &PathFollow3D::set_v_offset);
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ClassDB::bind_method(D_METHOD("get_v_offset"), &PathFollow3D::get_v_offset);
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ClassDB::bind_method(D_METHOD("set_progress_ratio", "ratio"), &PathFollow3D::set_progress_ratio);
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ClassDB::bind_method(D_METHOD("get_progress_ratio"), &PathFollow3D::get_progress_ratio);
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ClassDB::bind_method(D_METHOD("set_rotation_mode", "rotation_mode"), &PathFollow3D::set_rotation_mode);
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ClassDB::bind_method(D_METHOD("get_rotation_mode"), &PathFollow3D::get_rotation_mode);
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ClassDB::bind_method(D_METHOD("set_cubic_interpolation", "enable"), &PathFollow3D::set_cubic_interpolation);
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ClassDB::bind_method(D_METHOD("get_cubic_interpolation"), &PathFollow3D::get_cubic_interpolation);
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ClassDB::bind_method(D_METHOD("set_loop", "loop"), &PathFollow3D::set_loop);
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ClassDB::bind_method(D_METHOD("has_loop"), &PathFollow3D::has_loop);
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ClassDB::bind_method(D_METHOD("set_tilt_enabled", "enabled"), &PathFollow3D::set_tilt_enabled);
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ClassDB::bind_method(D_METHOD("is_tilt_enabled"), &PathFollow3D::is_tilt_enabled);
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ClassDB::bind_static_method("PathFollow3D", D_METHOD("correct_posture", "transform", "rotation_mode"), &PathFollow3D::correct_posture);
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "progress", PROPERTY_HINT_RANGE, "0,10000,0.01,or_less,or_greater,suffix:m"), "set_progress", "get_progress");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "progress_ratio", PROPERTY_HINT_RANGE, "0,1,0.0001,or_less,or_greater", PROPERTY_USAGE_EDITOR), "set_progress_ratio", "get_progress_ratio");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "h_offset", PROPERTY_HINT_NONE, "suffix:m"), "set_h_offset", "get_h_offset");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "v_offset", PROPERTY_HINT_NONE, "suffix:m"), "set_v_offset", "get_v_offset");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "rotation_mode", PROPERTY_HINT_ENUM, "None,Y,XY,XYZ,Oriented"), "set_rotation_mode", "get_rotation_mode");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "cubic_interp"), "set_cubic_interpolation", "get_cubic_interpolation");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "loop"), "set_loop", "has_loop");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "tilt_enabled"), "set_tilt_enabled", "is_tilt_enabled");
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BIND_ENUM_CONSTANT(ROTATION_NONE);
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BIND_ENUM_CONSTANT(ROTATION_Y);
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BIND_ENUM_CONSTANT(ROTATION_XY);
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BIND_ENUM_CONSTANT(ROTATION_XYZ);
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BIND_ENUM_CONSTANT(ROTATION_ORIENTED);
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}
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void PathFollow3D::set_progress(real_t p_progress) {
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ERR_FAIL_COND(!isfinite(p_progress));
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progress = p_progress;
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if (path) {
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if (path->get_curve().is_valid()) {
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real_t path_length = path->get_curve()->get_baked_length();
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if (loop && path_length) {
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progress = Math::fposmod(progress, path_length);
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if (!Math::is_zero_approx(p_progress) && Math::is_zero_approx(progress)) {
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progress = path_length;
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}
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}
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}
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_update_transform();
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}
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}
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void PathFollow3D::set_h_offset(real_t p_h_offset) {
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h_offset = p_h_offset;
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if (path) {
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_update_transform();
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}
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}
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real_t PathFollow3D::get_h_offset() const {
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return h_offset;
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}
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void PathFollow3D::set_v_offset(real_t p_v_offset) {
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v_offset = p_v_offset;
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if (path) {
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_update_transform();
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}
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}
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real_t PathFollow3D::get_v_offset() const {
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return v_offset;
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}
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real_t PathFollow3D::get_progress() const {
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return progress;
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}
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void PathFollow3D::set_progress_ratio(real_t p_ratio) {
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if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length()) {
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set_progress(p_ratio * path->get_curve()->get_baked_length());
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}
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}
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real_t PathFollow3D::get_progress_ratio() const {
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if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length()) {
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return get_progress() / path->get_curve()->get_baked_length();
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} else {
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return 0;
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}
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}
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void PathFollow3D::set_rotation_mode(RotationMode p_rotation_mode) {
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rotation_mode = p_rotation_mode;
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update_configuration_warnings();
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_update_transform();
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}
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PathFollow3D::RotationMode PathFollow3D::get_rotation_mode() const {
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return rotation_mode;
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}
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void PathFollow3D::set_loop(bool p_loop) {
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loop = p_loop;
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}
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bool PathFollow3D::has_loop() const {
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return loop;
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}
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void PathFollow3D::set_tilt_enabled(bool p_enable) {
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tilt_enabled = p_enable;
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}
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bool PathFollow3D::is_tilt_enabled() const {
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return tilt_enabled;
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}
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