1426cd3b3a
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". Backported from #70885.
523 lines
16 KiB
C++
523 lines
16 KiB
C++
/**************************************************************************/
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/* ray_cast.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 "ray_cast.h"
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#include "collision_object.h"
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#include "core/engine.h"
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#include "mesh_instance.h"
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#include "servers/physics_server.h"
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void RayCast::set_cast_to(const Vector3 &p_point) {
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cast_to = p_point;
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update_gizmo();
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if (Engine::get_singleton()->is_editor_hint()) {
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if (is_inside_tree()) {
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_update_debug_shape_vertices();
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}
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} else if (debug_shape) {
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_update_debug_shape();
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}
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}
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Vector3 RayCast::get_cast_to() const {
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return cast_to;
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}
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void RayCast::set_collision_mask(uint32_t p_mask) {
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collision_mask = p_mask;
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}
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uint32_t RayCast::get_collision_mask() const {
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return collision_mask;
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}
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void RayCast::set_collision_mask_bit(int p_bit, bool p_value) {
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ERR_FAIL_INDEX_MSG(p_bit, 32, "Collision mask bit must be between 0 and 31 inclusive.");
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uint32_t mask = get_collision_mask();
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if (p_value) {
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mask |= 1 << p_bit;
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} else {
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mask &= ~(1 << p_bit);
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}
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set_collision_mask(mask);
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}
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bool RayCast::get_collision_mask_bit(int p_bit) const {
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ERR_FAIL_INDEX_V_MSG(p_bit, 32, false, "Collision mask bit must be between 0 and 31 inclusive.");
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return get_collision_mask() & (1 << p_bit);
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}
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bool RayCast::is_colliding() const {
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return collided;
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}
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Object *RayCast::get_collider() const {
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if (against == 0) {
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return nullptr;
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}
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return ObjectDB::get_instance(against);
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}
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int RayCast::get_collider_shape() const {
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return against_shape;
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}
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Vector3 RayCast::get_collision_point() const {
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return collision_point;
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}
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Vector3 RayCast::get_collision_normal() const {
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return collision_normal;
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}
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void RayCast::set_enabled(bool p_enabled) {
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enabled = p_enabled;
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update_gizmo();
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if (is_inside_tree() && !Engine::get_singleton()->is_editor_hint()) {
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set_physics_process_internal(p_enabled);
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}
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if (!p_enabled) {
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collided = false;
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}
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if (is_inside_tree() && get_tree()->is_debugging_collisions_hint()) {
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if (p_enabled) {
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_update_debug_shape();
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} else {
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_clear_debug_shape();
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}
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}
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}
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bool RayCast::is_enabled() const {
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return enabled;
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}
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void RayCast::set_exclude_parent_body(bool p_exclude_parent_body) {
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if (exclude_parent_body == p_exclude_parent_body) {
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return;
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}
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exclude_parent_body = p_exclude_parent_body;
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if (!is_inside_tree()) {
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return;
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}
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if (Object::cast_to<CollisionObject>(get_parent())) {
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if (exclude_parent_body) {
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exclude.insert(Object::cast_to<CollisionObject>(get_parent())->get_rid());
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} else {
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exclude.erase(Object::cast_to<CollisionObject>(get_parent())->get_rid());
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}
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}
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}
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bool RayCast::get_exclude_parent_body() const {
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return exclude_parent_body;
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}
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void RayCast::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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if (Engine::get_singleton()->is_editor_hint()) {
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_update_debug_shape_vertices();
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}
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if (enabled && !Engine::get_singleton()->is_editor_hint()) {
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set_physics_process_internal(true);
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} else {
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set_physics_process_internal(false);
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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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if (Object::cast_to<CollisionObject>(get_parent())) {
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if (exclude_parent_body) {
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exclude.insert(Object::cast_to<CollisionObject>(get_parent())->get_rid());
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} else {
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exclude.erase(Object::cast_to<CollisionObject>(get_parent())->get_rid());
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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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if (enabled) {
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set_physics_process_internal(false);
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}
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if (debug_shape) {
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_clear_debug_shape();
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}
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} break;
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case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
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if (!enabled) {
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break;
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}
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bool prev_collision_state = collided;
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_update_raycast_state();
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if (prev_collision_state != collided && get_tree()->is_debugging_collisions_hint()) {
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_update_debug_shape_material(true);
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}
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} break;
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}
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}
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void RayCast::_update_raycast_state() {
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Ref<World> w3d = get_world();
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ERR_FAIL_COND(w3d.is_null());
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PhysicsDirectSpaceState *dss = PhysicsServer::get_singleton()->space_get_direct_state(w3d->get_space());
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ERR_FAIL_COND(!dss);
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Transform gt = get_global_transform();
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Vector3 to = cast_to;
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if (to == Vector3()) {
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to = Vector3(0, 0.01, 0);
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}
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PhysicsDirectSpaceState::RayResult rr;
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if (dss->intersect_ray(gt.get_origin(), gt.xform(to), rr, exclude, collision_mask, collide_with_bodies, collide_with_areas)) {
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collided = true;
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against = rr.collider_id;
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collision_point = rr.position;
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collision_normal = rr.normal;
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against_shape = rr.shape;
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} else {
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collided = false;
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against = 0;
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against_shape = 0;
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}
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}
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void RayCast::force_raycast_update() {
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_update_raycast_state();
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}
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void RayCast::add_exception_rid(const RID &p_rid) {
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exclude.insert(p_rid);
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}
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void RayCast::add_exception(const Object *p_object) {
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ERR_FAIL_NULL(p_object);
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const CollisionObject *co = Object::cast_to<CollisionObject>(p_object);
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if (!co) {
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return;
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}
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add_exception_rid(co->get_rid());
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}
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void RayCast::remove_exception_rid(const RID &p_rid) {
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exclude.erase(p_rid);
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}
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void RayCast::remove_exception(const Object *p_object) {
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ERR_FAIL_NULL(p_object);
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const CollisionObject *co = Object::cast_to<CollisionObject>(p_object);
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if (!co) {
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return;
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}
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remove_exception_rid(co->get_rid());
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}
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void RayCast::clear_exceptions() {
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exclude.clear();
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if (exclude_parent_body && is_inside_tree()) {
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CollisionObject *parent = Object::cast_to<CollisionObject>(get_parent());
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if (parent) {
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exclude.insert(parent->get_rid());
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}
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}
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}
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void RayCast::set_collide_with_areas(bool p_clip) {
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collide_with_areas = p_clip;
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}
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bool RayCast::is_collide_with_areas_enabled() const {
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return collide_with_areas;
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}
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void RayCast::set_collide_with_bodies(bool p_clip) {
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collide_with_bodies = p_clip;
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}
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bool RayCast::is_collide_with_bodies_enabled() const {
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return collide_with_bodies;
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}
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void RayCast::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &RayCast::set_enabled);
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ClassDB::bind_method(D_METHOD("is_enabled"), &RayCast::is_enabled);
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ClassDB::bind_method(D_METHOD("set_cast_to", "local_point"), &RayCast::set_cast_to);
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ClassDB::bind_method(D_METHOD("get_cast_to"), &RayCast::get_cast_to);
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ClassDB::bind_method(D_METHOD("is_colliding"), &RayCast::is_colliding);
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ClassDB::bind_method(D_METHOD("force_raycast_update"), &RayCast::force_raycast_update);
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ClassDB::bind_method(D_METHOD("get_collider"), &RayCast::get_collider);
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ClassDB::bind_method(D_METHOD("get_collider_shape"), &RayCast::get_collider_shape);
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ClassDB::bind_method(D_METHOD("get_collision_point"), &RayCast::get_collision_point);
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ClassDB::bind_method(D_METHOD("get_collision_normal"), &RayCast::get_collision_normal);
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ClassDB::bind_method(D_METHOD("add_exception_rid", "rid"), &RayCast::add_exception_rid);
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ClassDB::bind_method(D_METHOD("add_exception", "node"), &RayCast::add_exception);
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ClassDB::bind_method(D_METHOD("remove_exception_rid", "rid"), &RayCast::remove_exception_rid);
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ClassDB::bind_method(D_METHOD("remove_exception", "node"), &RayCast::remove_exception);
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ClassDB::bind_method(D_METHOD("clear_exceptions"), &RayCast::clear_exceptions);
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ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &RayCast::set_collision_mask);
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ClassDB::bind_method(D_METHOD("get_collision_mask"), &RayCast::get_collision_mask);
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ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &RayCast::set_collision_mask_bit);
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ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &RayCast::get_collision_mask_bit);
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ClassDB::bind_method(D_METHOD("set_exclude_parent_body", "mask"), &RayCast::set_exclude_parent_body);
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ClassDB::bind_method(D_METHOD("get_exclude_parent_body"), &RayCast::get_exclude_parent_body);
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ClassDB::bind_method(D_METHOD("set_collide_with_areas", "enable"), &RayCast::set_collide_with_areas);
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ClassDB::bind_method(D_METHOD("is_collide_with_areas_enabled"), &RayCast::is_collide_with_areas_enabled);
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ClassDB::bind_method(D_METHOD("set_collide_with_bodies", "enable"), &RayCast::set_collide_with_bodies);
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ClassDB::bind_method(D_METHOD("is_collide_with_bodies_enabled"), &RayCast::is_collide_with_bodies_enabled);
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ClassDB::bind_method(D_METHOD("set_debug_shape_custom_color", "debug_shape_custom_color"), &RayCast::set_debug_shape_custom_color);
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ClassDB::bind_method(D_METHOD("get_debug_shape_custom_color"), &RayCast::get_debug_shape_custom_color);
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ClassDB::bind_method(D_METHOD("set_debug_shape_thickness", "debug_shape_thickness"), &RayCast::set_debug_shape_thickness);
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ClassDB::bind_method(D_METHOD("get_debug_shape_thickness"), &RayCast::get_debug_shape_thickness);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "exclude_parent"), "set_exclude_parent_body", "get_exclude_parent_body");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "cast_to"), "set_cast_to", "get_cast_to");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_mask", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_mask", "get_collision_mask");
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ADD_GROUP("Collide With", "collide_with");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_areas", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_areas", "is_collide_with_areas_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_bodies", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collide_with_bodies", "is_collide_with_bodies_enabled");
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ADD_GROUP("Debug Shape", "debug_shape");
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ADD_PROPERTY(PropertyInfo(Variant::COLOR, "debug_shape_custom_color"), "set_debug_shape_custom_color", "get_debug_shape_custom_color");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "debug_shape_thickness", PROPERTY_HINT_RANGE, "1,5"), "set_debug_shape_thickness", "get_debug_shape_thickness");
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}
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int RayCast::get_debug_shape_thickness() const {
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return debug_shape_thickness;
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}
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void RayCast::_update_debug_shape_vertices() {
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debug_shape_vertices.clear();
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debug_line_vertices.clear();
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if (cast_to == Vector3()) {
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return;
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}
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debug_line_vertices.push_back(Vector3());
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debug_line_vertices.push_back(cast_to);
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if (debug_shape_thickness > 1) {
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float scale_factor = 100.0;
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Vector3 dir = Vector3(cast_to).normalized();
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// Draw truncated pyramid
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Vector3 normal = (fabs(dir.x) + fabs(dir.y) > CMP_EPSILON) ? Vector3(-dir.y, dir.x, 0).normalized() : Vector3(0, -dir.z, dir.y).normalized();
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normal *= debug_shape_thickness / scale_factor;
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int vertices_strip_order[14] = { 4, 5, 0, 1, 2, 5, 6, 4, 7, 0, 3, 2, 7, 6 };
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for (int v = 0; v < 14; v++) {
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Vector3 vertex = vertices_strip_order[v] < 4 ? normal : normal / 3.0 + cast_to;
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debug_shape_vertices.push_back(vertex.rotated(dir, Math_PI * (0.5 * (vertices_strip_order[v] % 4) + 0.25)));
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}
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}
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}
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void RayCast::set_debug_shape_thickness(const int p_debug_shape_thickness) {
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debug_shape_thickness = p_debug_shape_thickness;
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update_gizmo();
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if (Engine::get_singleton()->is_editor_hint()) {
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if (is_inside_tree()) {
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_update_debug_shape_vertices();
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}
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} else if (debug_shape) {
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_update_debug_shape();
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}
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}
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const Vector<Vector3> &RayCast::get_debug_shape_vertices() const {
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return debug_shape_vertices;
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}
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const Vector<Vector3> &RayCast::get_debug_line_vertices() const {
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return debug_line_vertices;
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}
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void RayCast::set_debug_shape_custom_color(const Color &p_color) {
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debug_shape_custom_color = p_color;
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if (debug_material.is_valid()) {
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_update_debug_shape_material();
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}
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}
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Ref<SpatialMaterial> RayCast::get_debug_material() {
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_update_debug_shape_material();
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return debug_material;
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}
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const Color &RayCast::get_debug_shape_custom_color() const {
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return debug_shape_custom_color;
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}
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void RayCast::_create_debug_shape() {
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_update_debug_shape_material();
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Ref<ArrayMesh> mesh = memnew(ArrayMesh);
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MeshInstance *mi = memnew(MeshInstance);
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#ifdef TOOLS_ENABLED
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// This enables the debug helper to show up in editor runs.
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// However it should not show up during export, because global mode
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// can slow the portal system, and this should only be used for debugging.
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mi->set_portal_mode(CullInstance::PORTAL_MODE_GLOBAL);
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#endif
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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 RayCast::_update_debug_shape_material(bool p_check_collision) {
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if (!debug_material.is_valid()) {
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Ref<SpatialMaterial> material = memnew(SpatialMaterial);
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debug_material = material;
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material->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
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material->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
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// Use double-sided rendering so that the RayCast can be seen if the camera is inside.
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material->set_cull_mode(SpatialMaterial::CULL_DISABLED);
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}
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Color color = debug_shape_custom_color;
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if (color == Color(0.0, 0.0, 0.0)) {
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// Use the default debug shape color defined in the Project Settings.
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color = get_tree()->get_debug_collisions_color();
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}
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if (p_check_collision && collided) {
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if ((color.get_h() < 0.055 || color.get_h() > 0.945) && color.get_s() > 0.5 && color.get_v() > 0.5) {
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// If base color is already quite reddish, highlight collision with green color
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color = Color(0.0, 1.0, 0.0, color.a);
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} else {
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// Else, highlight collision with red color
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color = Color(1.0, 0, 0, color.a);
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}
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}
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Ref<SpatialMaterial> material = static_cast<Ref<SpatialMaterial>>(debug_material);
|
|
material->set_albedo(color);
|
|
}
|
|
|
|
void RayCast::_update_debug_shape() {
|
|
if (!enabled) {
|
|
return;
|
|
}
|
|
|
|
if (!debug_shape) {
|
|
_create_debug_shape();
|
|
}
|
|
|
|
MeshInstance *mi = static_cast<MeshInstance *>(debug_shape);
|
|
Ref<ArrayMesh> mesh = mi->get_mesh();
|
|
if (!mesh.is_valid()) {
|
|
return;
|
|
}
|
|
|
|
_update_debug_shape_vertices();
|
|
|
|
mesh->clear_surfaces();
|
|
|
|
Array a;
|
|
a.resize(Mesh::ARRAY_MAX);
|
|
|
|
uint32_t flags = 0;
|
|
int surface_count = 0;
|
|
|
|
if (!debug_line_vertices.empty()) {
|
|
a[Mesh::ARRAY_VERTEX] = debug_line_vertices;
|
|
mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, a, Array(), flags);
|
|
mesh->surface_set_material(surface_count, debug_material);
|
|
++surface_count;
|
|
}
|
|
|
|
if (!debug_shape_vertices.empty()) {
|
|
a[Mesh::ARRAY_VERTEX] = debug_shape_vertices;
|
|
mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLE_STRIP, a, Array(), flags);
|
|
mesh->surface_set_material(surface_count, debug_material);
|
|
++surface_count;
|
|
}
|
|
}
|
|
|
|
void RayCast::_clear_debug_shape() {
|
|
if (!debug_shape) {
|
|
return;
|
|
}
|
|
|
|
MeshInstance *mi = static_cast<MeshInstance *>(debug_shape);
|
|
if (mi->is_inside_tree()) {
|
|
mi->queue_delete();
|
|
} else {
|
|
memdelete(mi);
|
|
}
|
|
|
|
debug_shape = nullptr;
|
|
}
|
|
|
|
RayCast::RayCast() {
|
|
enabled = false;
|
|
against = 0;
|
|
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;
|
|
}
|