257 lines
8.5 KiB
C++
257 lines
8.5 KiB
C++
/*************************************************************************/
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/* collision_shape_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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "collision_shape_3d.h"
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#include "core/math/quick_hull.h"
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#include "mesh_instance_3d.h"
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#include "physics_body_3d.h"
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#include "scene/resources/box_shape_3d.h"
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#include "scene/resources/capsule_shape_3d.h"
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#include "scene/resources/concave_polygon_shape_3d.h"
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#include "scene/resources/convex_polygon_shape_3d.h"
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#include "scene/resources/ray_shape_3d.h"
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#include "scene/resources/sphere_shape_3d.h"
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#include "scene/resources/world_margin_shape_3d.h"
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#include "servers/rendering_server.h"
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//TODO: Implement CylinderShape and HeightMapShape?
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void CollisionShape3D::make_convex_from_siblings() {
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Node *p = get_parent();
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if (!p) {
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return;
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}
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Vector<Vector3> vertices;
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for (int i = 0; i < p->get_child_count(); i++) {
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Node *n = p->get_child(i);
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MeshInstance3D *mi = Object::cast_to<MeshInstance3D>(n);
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if (mi) {
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Ref<Mesh> m = mi->get_mesh();
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if (m.is_valid()) {
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for (int j = 0; j < m->get_surface_count(); j++) {
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Array a = m->surface_get_arrays(j);
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if (!a.is_empty()) {
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Vector<Vector3> v = a[RenderingServer::ARRAY_VERTEX];
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for (int k = 0; k < v.size(); k++) {
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vertices.append(mi->get_transform().xform(v[k]));
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}
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}
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}
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}
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}
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}
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Ref<ConvexPolygonShape3D> shape = memnew(ConvexPolygonShape3D);
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shape->set_points(vertices);
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set_shape(shape);
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}
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void CollisionShape3D::_update_in_shape_owner(bool p_xform_only) {
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parent->shape_owner_set_transform(owner_id, get_transform());
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if (p_xform_only) {
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return;
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}
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parent->shape_owner_set_disabled(owner_id, disabled);
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}
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void CollisionShape3D::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_PARENTED: {
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parent = Object::cast_to<CollisionObject3D>(get_parent());
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if (parent) {
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owner_id = parent->create_shape_owner(this);
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if (shape.is_valid()) {
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parent->shape_owner_add_shape(owner_id, shape);
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}
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_update_in_shape_owner();
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}
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} break;
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case NOTIFICATION_ENTER_TREE: {
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if (parent) {
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_update_in_shape_owner();
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}
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if (get_tree()->is_debugging_collisions_hint()) {
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_update_debug_shape();
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}
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} break;
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case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: {
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if (parent) {
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_update_in_shape_owner(true);
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}
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} break;
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case NOTIFICATION_UNPARENTED: {
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if (parent) {
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parent->remove_shape_owner(owner_id);
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}
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owner_id = 0;
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parent = nullptr;
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} break;
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}
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}
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void CollisionShape3D::resource_changed(RES res) {
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update_gizmo();
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}
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String CollisionShape3D::get_configuration_warning() const {
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String warning = Node3D::get_configuration_warning();
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if (!Object::cast_to<CollisionObject3D>(get_parent())) {
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if (!warning.is_empty()) {
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warning += "\n\n";
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}
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warning += TTR("CollisionShape3D only serves to provide a collision shape to a CollisionObject3D derived node. Please only use it as a child of Area3D, StaticBody3D, RigidBody3D, KinematicBody3D, etc. to give them a shape.");
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}
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if (!shape.is_valid()) {
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if (!warning.is_empty()) {
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warning += "\n\n";
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}
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warning += TTR("A shape must be provided for CollisionShape3D to function. Please create a shape resource for it.");
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}
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if (shape.is_valid() &&
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Object::cast_to<RigidBody3D>(get_parent()) &&
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Object::cast_to<ConcavePolygonShape3D>(*shape) &&
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Object::cast_to<RigidBody3D>(get_parent())->get_mode() != RigidBody3D::MODE_STATIC) {
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if (!warning.is_empty()) {
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warning += "\n\n";
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}
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warning += TTR("ConcavePolygonShape3D doesn't support RigidBody3D in another mode than static.");
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}
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return warning;
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}
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void CollisionShape3D::_bind_methods() {
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//not sure if this should do anything
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ClassDB::bind_method(D_METHOD("resource_changed", "resource"), &CollisionShape3D::resource_changed);
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ClassDB::bind_method(D_METHOD("set_shape", "shape"), &CollisionShape3D::set_shape);
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ClassDB::bind_method(D_METHOD("get_shape"), &CollisionShape3D::get_shape);
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ClassDB::bind_method(D_METHOD("set_disabled", "enable"), &CollisionShape3D::set_disabled);
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ClassDB::bind_method(D_METHOD("is_disabled"), &CollisionShape3D::is_disabled);
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ClassDB::bind_method(D_METHOD("make_convex_from_siblings"), &CollisionShape3D::make_convex_from_siblings);
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ClassDB::set_method_flags("CollisionShape3D", "make_convex_from_siblings", METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
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ClassDB::bind_method(D_METHOD("_update_debug_shape"), &CollisionShape3D::_update_debug_shape);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape3D"), "set_shape", "get_shape");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled");
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}
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void CollisionShape3D::set_shape(const Ref<Shape3D> &p_shape) {
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if (p_shape == shape) {
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return;
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}
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if (!shape.is_null()) {
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shape->unregister_owner(this);
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shape->disconnect("changed", callable_mp(this, &CollisionShape3D::_shape_changed));
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}
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shape = p_shape;
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if (!shape.is_null()) {
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shape->register_owner(this);
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shape->connect("changed", callable_mp(this, &CollisionShape3D::_shape_changed));
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}
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update_gizmo();
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if (parent) {
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parent->shape_owner_clear_shapes(owner_id);
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if (shape.is_valid()) {
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parent->shape_owner_add_shape(owner_id, shape);
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}
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}
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if (is_inside_tree()) {
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_shape_changed();
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}
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update_configuration_warning();
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}
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Ref<Shape3D> CollisionShape3D::get_shape() const {
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return shape;
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}
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void CollisionShape3D::set_disabled(bool p_disabled) {
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disabled = p_disabled;
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update_gizmo();
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if (parent) {
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parent->shape_owner_set_disabled(owner_id, p_disabled);
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}
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}
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bool CollisionShape3D::is_disabled() const {
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return disabled;
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}
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CollisionShape3D::CollisionShape3D() {
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//indicator = RenderingServer::get_singleton()->mesh_create();
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set_notify_local_transform(true);
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}
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CollisionShape3D::~CollisionShape3D() {
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if (!shape.is_null()) {
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shape->unregister_owner(this);
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}
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//RenderingServer::get_singleton()->free(indicator);
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}
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void CollisionShape3D::_update_debug_shape() {
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debug_shape_dirty = false;
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if (debug_shape) {
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debug_shape->queue_delete();
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debug_shape = nullptr;
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}
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Ref<Shape3D> s = get_shape();
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if (s.is_null()) {
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return;
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}
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Ref<Mesh> mesh = s->get_debug_mesh();
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MeshInstance3D *mi = memnew(MeshInstance3D);
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mi->set_mesh(mesh);
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add_child(mi);
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debug_shape = mi;
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}
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void CollisionShape3D::_shape_changed() {
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// If this is a heightfield shape our center may have changed
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if (parent) {
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_update_in_shape_owner(true);
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}
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if (is_inside_tree() && get_tree()->is_debugging_collisions_hint() && !debug_shape_dirty) {
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debug_shape_dirty = true;
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call_deferred("_update_debug_shape");
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}
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}
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