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godot/scene/3d/collision_object_3d.cpp
Rémi Verschelde b5334d14f7
Update copyright statements to 2021 
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆
2021-01-01 20:19:21 +01:00

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/*************************************************************************/
/* collision_object_3d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 "collision_object_3d.h"
#include "scene/scene_string_names.h"
#include "servers/physics_server_3d.h"
void CollisionObject3D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_WORLD: {
if (area) {
PhysicsServer3D::get_singleton()->area_set_transform(rid, get_global_transform());
} else {
PhysicsServer3D::get_singleton()->body_set_state(rid, PhysicsServer3D::BODY_STATE_TRANSFORM, get_global_transform());
}
RID space = get_world_3d()->get_space();
if (area) {
PhysicsServer3D::get_singleton()->area_set_space(rid, space);
} else {
PhysicsServer3D::get_singleton()->body_set_space(rid, space);
}
_update_pickable();
//get space
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
if (area) {
PhysicsServer3D::get_singleton()->area_set_transform(rid, get_global_transform());
} else {
PhysicsServer3D::get_singleton()->body_set_state(rid, PhysicsServer3D::BODY_STATE_TRANSFORM, get_global_transform());
}
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
_update_pickable();
} break;
case NOTIFICATION_EXIT_WORLD: {
if (area) {
PhysicsServer3D::get_singleton()->area_set_space(rid, RID());
} else {
PhysicsServer3D::get_singleton()->body_set_space(rid, RID());
}
} break;
}
}
void CollisionObject3D::_input_event(Node *p_camera, const Ref<InputEvent> &p_input_event, const Vector3 &p_pos, const Vector3 &p_normal, int p_shape) {
if (get_script_instance()) {
get_script_instance()->call(SceneStringNames::get_singleton()->_input_event, p_camera, p_input_event, p_pos, p_normal, p_shape);
}
emit_signal(SceneStringNames::get_singleton()->input_event, p_camera, p_input_event, p_pos, p_normal, p_shape);
}
void CollisionObject3D::_mouse_enter() {
if (get_script_instance()) {
get_script_instance()->call(SceneStringNames::get_singleton()->_mouse_enter);
}
emit_signal(SceneStringNames::get_singleton()->mouse_entered);
}
void CollisionObject3D::_mouse_exit() {
if (get_script_instance()) {
get_script_instance()->call(SceneStringNames::get_singleton()->_mouse_exit);
}
emit_signal(SceneStringNames::get_singleton()->mouse_exited);
}
void CollisionObject3D::_update_pickable() {
if (!is_inside_tree()) {
return;
}
bool pickable = ray_pickable && is_visible_in_tree();
if (area) {
PhysicsServer3D::get_singleton()->area_set_ray_pickable(rid, pickable);
} else {
PhysicsServer3D::get_singleton()->body_set_ray_pickable(rid, pickable);
}
}
void CollisionObject3D::set_ray_pickable(bool p_ray_pickable) {
ray_pickable = p_ray_pickable;
_update_pickable();
}
bool CollisionObject3D::is_ray_pickable() const {
return ray_pickable;
}
void CollisionObject3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_ray_pickable", "ray_pickable"), &CollisionObject3D::set_ray_pickable);
ClassDB::bind_method(D_METHOD("is_ray_pickable"), &CollisionObject3D::is_ray_pickable);
ClassDB::bind_method(D_METHOD("set_capture_input_on_drag", "enable"), &CollisionObject3D::set_capture_input_on_drag);
ClassDB::bind_method(D_METHOD("get_capture_input_on_drag"), &CollisionObject3D::get_capture_input_on_drag);
ClassDB::bind_method(D_METHOD("get_rid"), &CollisionObject3D::get_rid);
ClassDB::bind_method(D_METHOD("create_shape_owner", "owner"), &CollisionObject3D::create_shape_owner);
ClassDB::bind_method(D_METHOD("remove_shape_owner", "owner_id"), &CollisionObject3D::remove_shape_owner);
ClassDB::bind_method(D_METHOD("get_shape_owners"), &CollisionObject3D::_get_shape_owners);
ClassDB::bind_method(D_METHOD("shape_owner_set_transform", "owner_id", "transform"), &CollisionObject3D::shape_owner_set_transform);
ClassDB::bind_method(D_METHOD("shape_owner_get_transform", "owner_id"), &CollisionObject3D::shape_owner_get_transform);
ClassDB::bind_method(D_METHOD("shape_owner_get_owner", "owner_id"), &CollisionObject3D::shape_owner_get_owner);
ClassDB::bind_method(D_METHOD("shape_owner_set_disabled", "owner_id", "disabled"), &CollisionObject3D::shape_owner_set_disabled);
ClassDB::bind_method(D_METHOD("is_shape_owner_disabled", "owner_id"), &CollisionObject3D::is_shape_owner_disabled);
ClassDB::bind_method(D_METHOD("shape_owner_add_shape", "owner_id", "shape"), &CollisionObject3D::shape_owner_add_shape);
ClassDB::bind_method(D_METHOD("shape_owner_get_shape_count", "owner_id"), &CollisionObject3D::shape_owner_get_shape_count);
ClassDB::bind_method(D_METHOD("shape_owner_get_shape", "owner_id", "shape_id"), &CollisionObject3D::shape_owner_get_shape);
ClassDB::bind_method(D_METHOD("shape_owner_get_shape_index", "owner_id", "shape_id"), &CollisionObject3D::shape_owner_get_shape_index);
ClassDB::bind_method(D_METHOD("shape_owner_remove_shape", "owner_id", "shape_id"), &CollisionObject3D::shape_owner_remove_shape);
ClassDB::bind_method(D_METHOD("shape_owner_clear_shapes", "owner_id"), &CollisionObject3D::shape_owner_clear_shapes);
ClassDB::bind_method(D_METHOD("shape_find_owner", "shape_index"), &CollisionObject3D::shape_find_owner);
BIND_VMETHOD(MethodInfo("_input_event", PropertyInfo(Variant::OBJECT, "camera"), PropertyInfo(Variant::OBJECT, "event", PROPERTY_HINT_RESOURCE_TYPE, "InputEvent"), PropertyInfo(Variant::VECTOR3, "click_position"), PropertyInfo(Variant::VECTOR3, "click_normal"), PropertyInfo(Variant::INT, "shape_idx")));
ADD_SIGNAL(MethodInfo("input_event", PropertyInfo(Variant::OBJECT, "camera", PROPERTY_HINT_RESOURCE_TYPE, "Node"), PropertyInfo(Variant::OBJECT, "event", PROPERTY_HINT_RESOURCE_TYPE, "InputEvent"), PropertyInfo(Variant::VECTOR3, "click_position"), PropertyInfo(Variant::VECTOR3, "click_normal"), PropertyInfo(Variant::INT, "shape_idx")));
ADD_SIGNAL(MethodInfo("mouse_entered"));
ADD_SIGNAL(MethodInfo("mouse_exited"));
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "input_ray_pickable"), "set_ray_pickable", "is_ray_pickable");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "input_capture_on_drag"), "set_capture_input_on_drag", "get_capture_input_on_drag");
}
uint32_t CollisionObject3D::create_shape_owner(Object *p_owner) {
ShapeData sd;
uint32_t id;
if (shapes.size() == 0) {
id = 0;
} else {
id = shapes.back()->key() + 1;
}
sd.owner = p_owner;
shapes[id] = sd;
return id;
}
void CollisionObject3D::remove_shape_owner(uint32_t owner) {
ERR_FAIL_COND(!shapes.has(owner));
shape_owner_clear_shapes(owner);
shapes.erase(owner);
}
void CollisionObject3D::shape_owner_set_disabled(uint32_t p_owner, bool p_disabled) {
ERR_FAIL_COND(!shapes.has(p_owner));
ShapeData &sd = shapes[p_owner];
sd.disabled = p_disabled;
for (int i = 0; i < sd.shapes.size(); i++) {
if (area) {
PhysicsServer3D::get_singleton()->area_set_shape_disabled(rid, sd.shapes[i].index, p_disabled);
} else {
PhysicsServer3D::get_singleton()->body_set_shape_disabled(rid, sd.shapes[i].index, p_disabled);
}
}
}
bool CollisionObject3D::is_shape_owner_disabled(uint32_t p_owner) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), false);
return shapes[p_owner].disabled;
}
void CollisionObject3D::get_shape_owners(List<uint32_t> *r_owners) {
for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
r_owners->push_back(E->key());
}
}
Array CollisionObject3D::_get_shape_owners() {
Array ret;
for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
ret.push_back(E->key());
}
return ret;
}
void CollisionObject3D::shape_owner_set_transform(uint32_t p_owner, const Transform &p_transform) {
ERR_FAIL_COND(!shapes.has(p_owner));
ShapeData &sd = shapes[p_owner];
sd.xform = p_transform;
for (int i = 0; i < sd.shapes.size(); i++) {
if (area) {
PhysicsServer3D::get_singleton()->area_set_shape_transform(rid, sd.shapes[i].index, p_transform);
} else {
PhysicsServer3D::get_singleton()->body_set_shape_transform(rid, sd.shapes[i].index, p_transform);
}
}
}
Transform CollisionObject3D::shape_owner_get_transform(uint32_t p_owner) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), Transform());
return shapes[p_owner].xform;
}
Object *CollisionObject3D::shape_owner_get_owner(uint32_t p_owner) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), nullptr);
return shapes[p_owner].owner;
}
void CollisionObject3D::shape_owner_add_shape(uint32_t p_owner, const Ref<Shape3D> &p_shape) {
ERR_FAIL_COND(!shapes.has(p_owner));
ERR_FAIL_COND(p_shape.is_null());
ShapeData &sd = shapes[p_owner];
ShapeData::ShapeBase s;
s.index = total_subshapes;
s.shape = p_shape;
if (area) {
PhysicsServer3D::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
} else {
PhysicsServer3D::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
}
sd.shapes.push_back(s);
total_subshapes++;
}
int CollisionObject3D::shape_owner_get_shape_count(uint32_t p_owner) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), 0);
return shapes[p_owner].shapes.size();
}
Ref<Shape3D> CollisionObject3D::shape_owner_get_shape(uint32_t p_owner, int p_shape) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), Ref<Shape3D>());
ERR_FAIL_INDEX_V(p_shape, shapes[p_owner].shapes.size(), Ref<Shape3D>());
return shapes[p_owner].shapes[p_shape].shape;
}
int CollisionObject3D::shape_owner_get_shape_index(uint32_t p_owner, int p_shape) const {
ERR_FAIL_COND_V(!shapes.has(p_owner), -1);
ERR_FAIL_INDEX_V(p_shape, shapes[p_owner].shapes.size(), -1);
return shapes[p_owner].shapes[p_shape].index;
}
void CollisionObject3D::shape_owner_remove_shape(uint32_t p_owner, int p_shape) {
ERR_FAIL_COND(!shapes.has(p_owner));
ERR_FAIL_INDEX(p_shape, shapes[p_owner].shapes.size());
int index_to_remove = shapes[p_owner].shapes[p_shape].index;
if (area) {
PhysicsServer3D::get_singleton()->area_remove_shape(rid, index_to_remove);
} else {
PhysicsServer3D::get_singleton()->body_remove_shape(rid, index_to_remove);
}
shapes[p_owner].shapes.remove(p_shape);
for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
for (int i = 0; i < E->get().shapes.size(); i++) {
if (E->get().shapes[i].index > index_to_remove) {
E->get().shapes.write[i].index -= 1;
}
}
}
total_subshapes--;
}
void CollisionObject3D::shape_owner_clear_shapes(uint32_t p_owner) {
ERR_FAIL_COND(!shapes.has(p_owner));
while (shape_owner_get_shape_count(p_owner) > 0) {
shape_owner_remove_shape(p_owner, 0);
}
}
uint32_t CollisionObject3D::shape_find_owner(int p_shape_index) const {
ERR_FAIL_INDEX_V(p_shape_index, total_subshapes, 0);
for (const Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
for (int i = 0; i < E->get().shapes.size(); i++) {
if (E->get().shapes[i].index == p_shape_index) {
return E->key();
}
}
}
//in theory it should be unreachable
return 0;
}
CollisionObject3D::CollisionObject3D(RID p_rid, bool p_area) {
rid = p_rid;
area = p_area;
capture_input_on_drag = false;
ray_pickable = true;
set_notify_transform(true);
total_subshapes = 0;
if (p_area) {
PhysicsServer3D::get_singleton()->area_attach_object_instance_id(rid, get_instance_id());
} else {
PhysicsServer3D::get_singleton()->body_attach_object_instance_id(rid, get_instance_id());
}
//set_transform_notify(true);
}
void CollisionObject3D::set_capture_input_on_drag(bool p_capture) {
capture_input_on_drag = p_capture;
}
bool CollisionObject3D::get_capture_input_on_drag() const {
return capture_input_on_drag;
}
String CollisionObject3D::get_configuration_warning() const {
String warning = Node3D::get_configuration_warning();
if (shapes.is_empty()) {
if (!warning.is_empty()) {
warning += "\n\n";
}
warning += TTR("This node has no shape, so it can't collide or interact with other objects.\nConsider adding a CollisionShape3D or CollisionPolygon3D as a child to define its shape.");
}
return warning;
}
CollisionObject3D::CollisionObject3D() {
capture_input_on_drag = false;
ray_pickable = true;
set_notify_transform(true);
//owner=
//set_transform_notify(true);
}
CollisionObject3D::~CollisionObject3D() {
PhysicsServer3D::get_singleton()->free(rid);
}
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