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-rw-r--r--scene/3d/ray_cast_3d.cpp405
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diff --git a/scene/3d/ray_cast_3d.cpp b/scene/3d/ray_cast_3d.cpp
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+/*************************************************************************/
+/* ray_cast_3d.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/*************************************************************************/
+
+#include "ray_cast_3d.h"
+
+#include "collision_object_3d.h"
+#include "core/engine.h"
+#include "mesh_instance_3d.h"
+#include "servers/physics_server_3d.h"
+
+void RayCast3D::set_cast_to(const Vector3 &p_point) {
+
+ cast_to = p_point;
+ if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_collisions_hint()))
+ update_gizmo();
+ if (is_inside_tree() && get_tree()->is_debugging_collisions_hint())
+ _update_debug_shape();
+}
+
+Vector3 RayCast3D::get_cast_to() const {
+
+ return cast_to;
+}
+
+void RayCast3D::set_collision_mask(uint32_t p_mask) {
+
+ collision_mask = p_mask;
+}
+
+uint32_t RayCast3D::get_collision_mask() const {
+
+ return collision_mask;
+}
+
+void RayCast3D::set_collision_mask_bit(int p_bit, bool p_value) {
+
+ uint32_t mask = get_collision_mask();
+ if (p_value)
+ mask |= 1 << p_bit;
+ else
+ mask &= ~(1 << p_bit);
+ set_collision_mask(mask);
+}
+
+bool RayCast3D::get_collision_mask_bit(int p_bit) const {
+
+ return get_collision_mask() & (1 << p_bit);
+}
+
+bool RayCast3D::is_colliding() const {
+
+ return collided;
+}
+Object *RayCast3D::get_collider() const {
+
+ if (against.is_null())
+ return nullptr;
+
+ return ObjectDB::get_instance(against);
+}
+
+int RayCast3D::get_collider_shape() const {
+
+ return against_shape;
+}
+Vector3 RayCast3D::get_collision_point() const {
+
+ return collision_point;
+}
+Vector3 RayCast3D::get_collision_normal() const {
+
+ return collision_normal;
+}
+
+void RayCast3D::set_enabled(bool p_enabled) {
+
+ enabled = p_enabled;
+ update_gizmo();
+
+ if (is_inside_tree() && !Engine::get_singleton()->is_editor_hint())
+ set_physics_process_internal(p_enabled);
+ if (!p_enabled)
+ collided = false;
+
+ if (is_inside_tree() && get_tree()->is_debugging_collisions_hint()) {
+ if (p_enabled)
+ _update_debug_shape();
+ else
+ _clear_debug_shape();
+ }
+}
+
+bool RayCast3D::is_enabled() const {
+
+ return enabled;
+}
+
+void RayCast3D::set_exclude_parent_body(bool p_exclude_parent_body) {
+
+ if (exclude_parent_body == p_exclude_parent_body)
+ return;
+
+ exclude_parent_body = p_exclude_parent_body;
+
+ if (!is_inside_tree())
+ return;
+
+ if (Object::cast_to<CollisionObject3D>(get_parent())) {
+ if (exclude_parent_body)
+ exclude.insert(Object::cast_to<CollisionObject3D>(get_parent())->get_rid());
+ else
+ exclude.erase(Object::cast_to<CollisionObject3D>(get_parent())->get_rid());
+ }
+}
+
+bool RayCast3D::get_exclude_parent_body() const {
+
+ return exclude_parent_body;
+}
+
+void RayCast3D::_notification(int p_what) {
+
+ switch (p_what) {
+
+ case NOTIFICATION_ENTER_TREE: {
+
+ if (enabled && !Engine::get_singleton()->is_editor_hint()) {
+ set_physics_process_internal(true);
+
+ if (get_tree()->is_debugging_collisions_hint())
+ _update_debug_shape();
+ } else
+ set_physics_process_internal(false);
+
+ if (Object::cast_to<CollisionObject3D>(get_parent())) {
+ if (exclude_parent_body)
+ exclude.insert(Object::cast_to<CollisionObject3D>(get_parent())->get_rid());
+ else
+ exclude.erase(Object::cast_to<CollisionObject3D>(get_parent())->get_rid());
+ }
+
+ } break;
+ case NOTIFICATION_EXIT_TREE: {
+
+ if (enabled) {
+ set_physics_process_internal(false);
+ }
+
+ if (debug_shape)
+ _clear_debug_shape();
+
+ } break;
+ case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
+
+ if (!enabled)
+ break;
+
+ bool prev_collision_state = collided;
+ _update_raycast_state();
+ if (prev_collision_state != collided && get_tree()->is_debugging_collisions_hint()) {
+ if (debug_material.is_valid()) {
+ Ref<StandardMaterial3D> line_material = static_cast<Ref<StandardMaterial3D>>(debug_material);
+ line_material->set_albedo(collided ? Color(1.0, 0, 0) : Color(1.0, 0.8, 0.6));
+ }
+ }
+
+ } break;
+ }
+}
+
+void RayCast3D::_update_raycast_state() {
+ Ref<World3D> w3d = get_world();
+ ERR_FAIL_COND(w3d.is_null());
+
+ PhysicsDirectSpaceState3D *dss = PhysicsServer3D::get_singleton()->space_get_direct_state(w3d->get_space());
+ ERR_FAIL_COND(!dss);
+
+ Transform gt = get_global_transform();
+
+ Vector3 to = cast_to;
+ if (to == Vector3())
+ to = Vector3(0, 0.01, 0);
+
+ PhysicsDirectSpaceState3D::RayResult rr;
+
+ if (dss->intersect_ray(gt.get_origin(), gt.xform(to), rr, exclude, collision_mask, collide_with_bodies, collide_with_areas)) {
+
+ collided = true;
+ against = rr.collider_id;
+ collision_point = rr.position;
+ collision_normal = rr.normal;
+ against_shape = rr.shape;
+ } else {
+ collided = false;
+ against = ObjectID();
+ against_shape = 0;
+ }
+}
+
+void RayCast3D::force_raycast_update() {
+ _update_raycast_state();
+}
+
+void RayCast3D::add_exception_rid(const RID &p_rid) {
+
+ exclude.insert(p_rid);
+}
+
+void RayCast3D::add_exception(const Object *p_object) {
+
+ ERR_FAIL_NULL(p_object);
+ const CollisionObject3D *co = Object::cast_to<CollisionObject3D>(p_object);
+ if (!co)
+ return;
+ add_exception_rid(co->get_rid());
+}
+
+void RayCast3D::remove_exception_rid(const RID &p_rid) {
+
+ exclude.erase(p_rid);
+}
+
+void RayCast3D::remove_exception(const Object *p_object) {
+
+ ERR_FAIL_NULL(p_object);
+ const CollisionObject3D *co = Object::cast_to<CollisionObject3D>(p_object);
+ if (!co)
+ return;
+ remove_exception_rid(co->get_rid());
+}
+
+void RayCast3D::clear_exceptions() {
+
+ exclude.clear();
+}
+
+void RayCast3D::set_collide_with_areas(bool p_clip) {
+
+ collide_with_areas = p_clip;
+}
+
+bool RayCast3D::is_collide_with_areas_enabled() const {
+
+ return collide_with_areas;
+}
+
+void RayCast3D::set_collide_with_bodies(bool p_clip) {
+
+ collide_with_bodies = p_clip;
+}
+
+bool RayCast3D::is_collide_with_bodies_enabled() const {
+
+ return collide_with_bodies;
+}
+
+void RayCast3D::_bind_methods() {
+
+ ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &RayCast3D::set_enabled);
+ ClassDB::bind_method(D_METHOD("is_enabled"), &RayCast3D::is_enabled);
+
+ ClassDB::bind_method(D_METHOD("set_cast_to", "local_point"), &RayCast3D::set_cast_to);
+ ClassDB::bind_method(D_METHOD("get_cast_to"), &RayCast3D::get_cast_to);
+
+ ClassDB::bind_method(D_METHOD("is_colliding"), &RayCast3D::is_colliding);
+ ClassDB::bind_method(D_METHOD("force_raycast_update"), &RayCast3D::force_raycast_update);
+
+ ClassDB::bind_method(D_METHOD("get_collider"), &RayCast3D::get_collider);
+ ClassDB::bind_method(D_METHOD("get_collider_shape"), &RayCast3D::get_collider_shape);
+ ClassDB::bind_method(D_METHOD("get_collision_point"), &RayCast3D::get_collision_point);
+ ClassDB::bind_method(D_METHOD("get_collision_normal"), &RayCast3D::get_collision_normal);
+
+ ClassDB::bind_method(D_METHOD("add_exception_rid", "rid"), &RayCast3D::add_exception_rid);
+ ClassDB::bind_method(D_METHOD("add_exception", "node"), &RayCast3D::add_exception);
+
+ ClassDB::bind_method(D_METHOD("remove_exception_rid", "rid"), &RayCast3D::remove_exception_rid);
+ ClassDB::bind_method(D_METHOD("remove_exception", "node"), &RayCast3D::remove_exception);
+
+ ClassDB::bind_method(D_METHOD("clear_exceptions"), &RayCast3D::clear_exceptions);
+
+ ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &RayCast3D::set_collision_mask);
+ ClassDB::bind_method(D_METHOD("get_collision_mask"), &RayCast3D::get_collision_mask);
+
+ ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &RayCast3D::set_collision_mask_bit);
+ ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &RayCast3D::get_collision_mask_bit);
+
+ ClassDB::bind_method(D_METHOD("set_exclude_parent_body", "mask"), &RayCast3D::set_exclude_parent_body);
+ ClassDB::bind_method(D_METHOD("get_exclude_parent_body"), &RayCast3D::get_exclude_parent_body);
+
+ ClassDB::bind_method(D_METHOD("set_collide_with_areas", "enable"), &RayCast3D::set_collide_with_areas);
+ ClassDB::bind_method(D_METHOD("is_collide_with_areas_enabled"), &RayCast3D::is_collide_with_areas_enabled);
+
+ ClassDB::bind_method(D_METHOD("set_collide_with_bodies", "enable"), &RayCast3D::set_collide_with_bodies);
+ ClassDB::bind_method(D_METHOD("is_collide_with_bodies_enabled"), &RayCast3D::is_collide_with_bodies_enabled);
+
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "exclude_parent"), "set_exclude_parent_body", "get_exclude_parent_body");
+ ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "cast_to"), "set_cast_to", "get_cast_to");
+ ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_mask", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_mask", "get_collision_mask");
+
+ ADD_GROUP("Collide With", "collide_with");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_areas", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_areas", "is_collide_with_areas_enabled");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_bodies", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_bodies", "is_collide_with_bodies_enabled");
+}
+
+void RayCast3D::_create_debug_shape() {
+
+ if (!debug_material.is_valid()) {
+ debug_material = Ref<StandardMaterial3D>(memnew(StandardMaterial3D));
+
+ Ref<StandardMaterial3D> line_material = static_cast<Ref<StandardMaterial3D>>(debug_material);
+ line_material->set_shading_mode(StandardMaterial3D::SHADING_MODE_UNSHADED);
+ line_material->set_albedo(Color(1.0, 0.8, 0.6));
+ }
+
+ Ref<ArrayMesh> mesh = memnew(ArrayMesh);
+
+ MeshInstance3D *mi = memnew(MeshInstance3D);
+ mi->set_mesh(mesh);
+
+ add_child(mi);
+ debug_shape = mi;
+}
+
+void RayCast3D::_update_debug_shape() {
+
+ if (!enabled)
+ return;
+
+ if (!debug_shape)
+ _create_debug_shape();
+
+ MeshInstance3D *mi = static_cast<MeshInstance3D *>(debug_shape);
+ if (!mi->get_mesh().is_valid())
+ return;
+
+ Ref<ArrayMesh> mesh = mi->get_mesh();
+ mesh->clear_surfaces();
+
+ Array a;
+ a.resize(Mesh::ARRAY_MAX);
+
+ Vector<Vector3> verts;
+ verts.push_back(Vector3());
+ verts.push_back(cast_to);
+ a[Mesh::ARRAY_VERTEX] = verts;
+
+ mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, a);
+ mesh->surface_set_material(0, debug_material);
+}
+
+void RayCast3D::_clear_debug_shape() {
+
+ if (!debug_shape)
+ return;
+
+ MeshInstance3D *mi = static_cast<MeshInstance3D *>(debug_shape);
+ if (mi->is_inside_tree())
+ mi->queue_delete();
+ else
+ memdelete(mi);
+
+ debug_shape = nullptr;
+}
+
+RayCast3D::RayCast3D() {
+
+ enabled = false;
+
+ collided = false;
+ against_shape = 0;
+ collision_mask = 1;
+ cast_to = Vector3(0, -1, 0);
+ debug_shape = nullptr;
+ exclude_parent_body = true;
+ collide_with_areas = false;
+ collide_with_bodies = true;
+}
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