godot/servers/physics_2d_server.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

841 lines
40 KiB
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/*************************************************************************/
/* physics_2d_server.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 "physics_2d_server.h"
#include "core/method_bind_ext.gen.inc"
#include "core/print_string.h"
#include "core/project_settings.h"
Physics2DServer *Physics2DServer::singleton = NULL;
void Physics2DDirectBodyState::integrate_forces() {
real_t step = get_step();
Vector2 lv = get_linear_velocity();
lv += get_total_gravity() * step;
real_t av = get_angular_velocity();
float damp = 1.0 - step * get_total_linear_damp();
if (damp < 0) // reached zero in the given time
damp = 0;
lv *= damp;
damp = 1.0 - step * get_total_angular_damp();
if (damp < 0) // reached zero in the given time
damp = 0;
av *= damp;
set_linear_velocity(lv);
set_angular_velocity(av);
}
Object *Physics2DDirectBodyState::get_contact_collider_object(int p_contact_idx) const {
ObjectID objid = get_contact_collider_id(p_contact_idx);
Object *obj = ObjectDB::get_instance(objid);
return obj;
}
Physics2DServer *Physics2DServer::get_singleton() {
return singleton;
}
void Physics2DDirectBodyState::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_total_gravity"), &Physics2DDirectBodyState::get_total_gravity);
ClassDB::bind_method(D_METHOD("get_total_linear_damp"), &Physics2DDirectBodyState::get_total_linear_damp);
ClassDB::bind_method(D_METHOD("get_total_angular_damp"), &Physics2DDirectBodyState::get_total_angular_damp);
ClassDB::bind_method(D_METHOD("get_inverse_mass"), &Physics2DDirectBodyState::get_inverse_mass);
ClassDB::bind_method(D_METHOD("get_inverse_inertia"), &Physics2DDirectBodyState::get_inverse_inertia);
ClassDB::bind_method(D_METHOD("set_linear_velocity", "velocity"), &Physics2DDirectBodyState::set_linear_velocity);
ClassDB::bind_method(D_METHOD("get_linear_velocity"), &Physics2DDirectBodyState::get_linear_velocity);
ClassDB::bind_method(D_METHOD("set_angular_velocity", "velocity"), &Physics2DDirectBodyState::set_angular_velocity);
ClassDB::bind_method(D_METHOD("get_angular_velocity"), &Physics2DDirectBodyState::get_angular_velocity);
ClassDB::bind_method(D_METHOD("set_transform", "transform"), &Physics2DDirectBodyState::set_transform);
ClassDB::bind_method(D_METHOD("get_transform"), &Physics2DDirectBodyState::get_transform);
ClassDB::bind_method(D_METHOD("add_central_force", "force"), &Physics2DDirectBodyState::add_central_force);
ClassDB::bind_method(D_METHOD("add_force", "offset", "force"), &Physics2DDirectBodyState::add_force);
ClassDB::bind_method(D_METHOD("add_torque", "torque"), &Physics2DDirectBodyState::add_torque);
ClassDB::bind_method(D_METHOD("apply_central_impulse", "impulse"), &Physics2DDirectBodyState::apply_central_impulse);
ClassDB::bind_method(D_METHOD("apply_torque_impulse", "impulse"), &Physics2DDirectBodyState::apply_torque_impulse);
ClassDB::bind_method(D_METHOD("apply_impulse", "offset", "impulse"), &Physics2DDirectBodyState::apply_impulse);
ClassDB::bind_method(D_METHOD("set_sleep_state", "enabled"), &Physics2DDirectBodyState::set_sleep_state);
ClassDB::bind_method(D_METHOD("is_sleeping"), &Physics2DDirectBodyState::is_sleeping);
ClassDB::bind_method(D_METHOD("get_contact_count"), &Physics2DDirectBodyState::get_contact_count);
ClassDB::bind_method(D_METHOD("get_contact_local_position", "contact_idx"), &Physics2DDirectBodyState::get_contact_local_position);
ClassDB::bind_method(D_METHOD("get_contact_local_normal", "contact_idx"), &Physics2DDirectBodyState::get_contact_local_normal);
ClassDB::bind_method(D_METHOD("get_contact_local_shape", "contact_idx"), &Physics2DDirectBodyState::get_contact_local_shape);
ClassDB::bind_method(D_METHOD("get_contact_collider", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider);
ClassDB::bind_method(D_METHOD("get_contact_collider_position", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_position);
ClassDB::bind_method(D_METHOD("get_contact_collider_id", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_id);
ClassDB::bind_method(D_METHOD("get_contact_collider_object", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_object);
ClassDB::bind_method(D_METHOD("get_contact_collider_shape", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_shape);
ClassDB::bind_method(D_METHOD("get_contact_collider_shape_metadata", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_shape_metadata);
ClassDB::bind_method(D_METHOD("get_contact_collider_velocity_at_position", "contact_idx"), &Physics2DDirectBodyState::get_contact_collider_velocity_at_position);
ClassDB::bind_method(D_METHOD("get_step"), &Physics2DDirectBodyState::get_step);
ClassDB::bind_method(D_METHOD("integrate_forces"), &Physics2DDirectBodyState::integrate_forces);
ClassDB::bind_method(D_METHOD("get_space_state"), &Physics2DDirectBodyState::get_space_state);
ADD_PROPERTY(PropertyInfo(Variant::REAL, "step"), "", "get_step");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "inverse_mass"), "", "get_inverse_mass");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "inverse_inertia"), "", "get_inverse_inertia");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "total_angular_damp"), "", "get_total_angular_damp");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "total_linear_damp"), "", "get_total_linear_damp");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "total_gravity"), "", "get_total_gravity");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "angular_velocity"), "set_angular_velocity", "get_angular_velocity");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "linear_velocity"), "set_linear_velocity", "get_linear_velocity");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "sleeping"), "set_sleep_state", "is_sleeping");
ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "transform"), "set_transform", "get_transform");
}
Physics2DDirectBodyState::Physics2DDirectBodyState() {}
///////////////////////////////////////////////////////
void Physics2DShapeQueryParameters::set_shape(const RES &p_shape) {
ERR_FAIL_COND(p_shape.is_null());
shape = p_shape->get_rid();
}
void Physics2DShapeQueryParameters::set_shape_rid(const RID &p_shape) {
shape = p_shape;
}
RID Physics2DShapeQueryParameters::get_shape_rid() const {
return shape;
}
void Physics2DShapeQueryParameters::set_transform(const Transform2D &p_transform) {
transform = p_transform;
}
Transform2D Physics2DShapeQueryParameters::get_transform() const {
return transform;
}
void Physics2DShapeQueryParameters::set_motion(const Vector2 &p_motion) {
motion = p_motion;
}
Vector2 Physics2DShapeQueryParameters::get_motion() const {
return motion;
}
void Physics2DShapeQueryParameters::set_margin(float p_margin) {
margin = p_margin;
}
float Physics2DShapeQueryParameters::get_margin() const {
return margin;
}
void Physics2DShapeQueryParameters::set_collision_mask(int p_collision_mask) {
collision_mask = p_collision_mask;
}
int Physics2DShapeQueryParameters::get_collision_mask() const {
return collision_mask;
}
void Physics2DShapeQueryParameters::set_exclude(const Vector<RID> &p_exclude) {
exclude.clear();
for (int i = 0; i < p_exclude.size(); i++)
exclude.insert(p_exclude[i]);
}
Vector<RID> Physics2DShapeQueryParameters::get_exclude() const {
Vector<RID> ret;
ret.resize(exclude.size());
int idx = 0;
for (Set<RID>::Element *E = exclude.front(); E; E = E->next()) {
ret.write[idx] = E->get();
}
return ret;
}
void Physics2DShapeQueryParameters::set_collide_with_bodies(bool p_enable) {
collide_with_bodies = p_enable;
}
bool Physics2DShapeQueryParameters::is_collide_with_bodies_enabled() const {
return collide_with_bodies;
}
void Physics2DShapeQueryParameters::set_collide_with_areas(bool p_enable) {
collide_with_areas = p_enable;
}
bool Physics2DShapeQueryParameters::is_collide_with_areas_enabled() const {
return collide_with_areas;
}
void Physics2DShapeQueryParameters::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_shape", "shape"), &Physics2DShapeQueryParameters::set_shape);
ClassDB::bind_method(D_METHOD("set_shape_rid", "shape"), &Physics2DShapeQueryParameters::set_shape_rid);
ClassDB::bind_method(D_METHOD("get_shape_rid"), &Physics2DShapeQueryParameters::get_shape_rid);
ClassDB::bind_method(D_METHOD("set_transform", "transform"), &Physics2DShapeQueryParameters::set_transform);
ClassDB::bind_method(D_METHOD("get_transform"), &Physics2DShapeQueryParameters::get_transform);
ClassDB::bind_method(D_METHOD("set_motion", "motion"), &Physics2DShapeQueryParameters::set_motion);
ClassDB::bind_method(D_METHOD("get_motion"), &Physics2DShapeQueryParameters::get_motion);
ClassDB::bind_method(D_METHOD("set_margin", "margin"), &Physics2DShapeQueryParameters::set_margin);
ClassDB::bind_method(D_METHOD("get_margin"), &Physics2DShapeQueryParameters::get_margin);
ClassDB::bind_method(D_METHOD("set_collision_layer", "collision_layer"), &Physics2DShapeQueryParameters::set_collision_mask);
ClassDB::bind_method(D_METHOD("get_collision_layer"), &Physics2DShapeQueryParameters::get_collision_mask);
ClassDB::bind_method(D_METHOD("set_exclude", "exclude"), &Physics2DShapeQueryParameters::set_exclude);
ClassDB::bind_method(D_METHOD("get_exclude"), &Physics2DShapeQueryParameters::get_exclude);
ClassDB::bind_method(D_METHOD("set_collide_with_bodies", "enable"), &Physics2DShapeQueryParameters::set_collide_with_bodies);
ClassDB::bind_method(D_METHOD("is_collide_with_bodies_enabled"), &Physics2DShapeQueryParameters::is_collide_with_bodies_enabled);
ClassDB::bind_method(D_METHOD("set_collide_with_areas", "enable"), &Physics2DShapeQueryParameters::set_collide_with_areas);
ClassDB::bind_method(D_METHOD("is_collide_with_areas_enabled"), &Physics2DShapeQueryParameters::is_collide_with_areas_enabled);
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_layer", PROPERTY_HINT_LAYERS_2D_PHYSICS), "set_collision_layer", "get_collision_layer");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "exclude", PROPERTY_HINT_NONE, itos(Variant::_RID) + ":"), "set_exclude", "get_exclude");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "margin", PROPERTY_HINT_RANGE, "0,100,0.01"), "set_margin", "get_margin");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion"), "set_motion", "get_motion");
//ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), "set_shape", ""); // FIXME: Lacks a getter
ADD_PROPERTY(PropertyInfo(Variant::_RID, "shape_rid"), "set_shape_rid", "get_shape_rid");
ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "transform"), "set_transform", "get_transform");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_bodies"), "set_collide_with_bodies", "is_collide_with_bodies_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "collide_with_areas"), "set_collide_with_areas", "is_collide_with_areas_enabled");
}
Physics2DShapeQueryParameters::Physics2DShapeQueryParameters() {
margin = 0;
collision_mask = 0x7FFFFFFF;
collide_with_bodies = true;
collide_with_areas = false;
}
Dictionary Physics2DDirectSpaceState::_intersect_ray(const Vector2 &p_from, const Vector2 &p_to, const Vector<RID> &p_exclude, uint32_t p_layers, bool p_collide_with_bodies, bool p_collide_with_areas) {
RayResult inters;
Set<RID> exclude;
for (int i = 0; i < p_exclude.size(); i++)
exclude.insert(p_exclude[i]);
bool res = intersect_ray(p_from, p_to, inters, exclude, p_layers, p_collide_with_bodies, p_collide_with_areas);
if (!res)
return Dictionary();
Dictionary d;
d["position"] = inters.position;
d["normal"] = inters.normal;
d["collider_id"] = inters.collider_id;
d["collider"] = inters.collider;
d["shape"] = inters.shape;
d["rid"] = inters.rid;
d["metadata"] = inters.metadata;
return d;
}
Array Physics2DDirectSpaceState::_intersect_shape(const Ref<Physics2DShapeQueryParameters> &p_shape_query, int p_max_results) {
ERR_FAIL_COND_V(!p_shape_query.is_valid(), Array());
Vector<ShapeResult> sr;
sr.resize(p_max_results);
int rc = intersect_shape(p_shape_query->shape, p_shape_query->transform, p_shape_query->motion, p_shape_query->margin, sr.ptrw(), sr.size(), p_shape_query->exclude, p_shape_query->collision_mask, p_shape_query->collide_with_bodies, p_shape_query->collide_with_areas);
Array ret;
ret.resize(rc);
for (int i = 0; i < rc; i++) {
Dictionary d;
d["rid"] = sr[i].rid;
d["collider_id"] = sr[i].collider_id;
d["collider"] = sr[i].collider;
d["shape"] = sr[i].shape;
d["metadata"] = sr[i].metadata;
ret[i] = d;
}
return ret;
}
Array Physics2DDirectSpaceState::_cast_motion(const Ref<Physics2DShapeQueryParameters> &p_shape_query) {
ERR_FAIL_COND_V(!p_shape_query.is_valid(), Array());
float closest_safe, closest_unsafe;
bool res = cast_motion(p_shape_query->shape, p_shape_query->transform, p_shape_query->motion, p_shape_query->margin, closest_safe, closest_unsafe, p_shape_query->exclude, p_shape_query->collision_mask, p_shape_query->collide_with_bodies, p_shape_query->collide_with_areas);
if (!res)
return Array();
Array ret;
ret.resize(2);
ret[0] = closest_safe;
ret[1] = closest_unsafe;
return ret;
}
Array Physics2DDirectSpaceState::_intersect_point_impl(const Vector2 &p_point, int p_max_results, const Vector<RID> &p_exclude, uint32_t p_layers, bool p_collide_with_bodies, bool p_collide_with_areas, bool p_filter_by_canvas, ObjectID p_canvas_instance_id) {
Set<RID> exclude;
for (int i = 0; i < p_exclude.size(); i++)
exclude.insert(p_exclude[i]);
Vector<ShapeResult> ret;
ret.resize(p_max_results);
int rc;
if (p_filter_by_canvas)
rc = intersect_point(p_point, ret.ptrw(), ret.size(), exclude, p_layers, p_collide_with_bodies, p_collide_with_areas);
else
rc = intersect_point_on_canvas(p_point, p_canvas_instance_id, ret.ptrw(), ret.size(), exclude, p_layers, p_collide_with_bodies, p_collide_with_areas);
if (rc == 0)
return Array();
Array r;
r.resize(rc);
for (int i = 0; i < rc; i++) {
Dictionary d;
d["rid"] = ret[i].rid;
d["collider_id"] = ret[i].collider_id;
d["collider"] = ret[i].collider;
d["shape"] = ret[i].shape;
d["metadata"] = ret[i].metadata;
r[i] = d;
}
return r;
}
Array Physics2DDirectSpaceState::_intersect_point(const Vector2 &p_point, int p_max_results, const Vector<RID> &p_exclude, uint32_t p_layers, bool p_collide_with_bodies, bool p_collide_with_areas) {
return _intersect_point_impl(p_point, p_max_results, p_exclude, p_layers, p_collide_with_bodies, p_collide_with_areas);
}
Array Physics2DDirectSpaceState::_intersect_point_on_canvas(const Vector2 &p_point, ObjectID p_canvas_intance_id, int p_max_results, const Vector<RID> &p_exclude, uint32_t p_layers, bool p_collide_with_bodies, bool p_collide_with_areas) {
return _intersect_point_impl(p_point, p_max_results, p_exclude, p_layers, p_collide_with_bodies, p_collide_with_areas, true, p_canvas_intance_id);
}
Array Physics2DDirectSpaceState::_collide_shape(const Ref<Physics2DShapeQueryParameters> &p_shape_query, int p_max_results) {
ERR_FAIL_COND_V(!p_shape_query.is_valid(), Array());
Vector<Vector2> ret;
ret.resize(p_max_results * 2);
int rc = 0;
bool res = collide_shape(p_shape_query->shape, p_shape_query->transform, p_shape_query->motion, p_shape_query->margin, ret.ptrw(), p_max_results, rc, p_shape_query->exclude, p_shape_query->collision_mask, p_shape_query->collide_with_bodies, p_shape_query->collide_with_areas);
if (!res)
return Array();
Array r;
r.resize(rc * 2);
for (int i = 0; i < rc * 2; i++)
r[i] = ret[i];
return r;
}
Dictionary Physics2DDirectSpaceState::_get_rest_info(const Ref<Physics2DShapeQueryParameters> &p_shape_query) {
ERR_FAIL_COND_V(!p_shape_query.is_valid(), Dictionary());
ShapeRestInfo sri;
bool res = rest_info(p_shape_query->shape, p_shape_query->transform, p_shape_query->motion, p_shape_query->margin, &sri, p_shape_query->exclude, p_shape_query->collision_mask, p_shape_query->collide_with_bodies, p_shape_query->collide_with_areas);
Dictionary r;
if (!res)
return r;
r["point"] = sri.point;
r["normal"] = sri.normal;
r["rid"] = sri.rid;
r["collider_id"] = sri.collider_id;
r["shape"] = sri.shape;
r["linear_velocity"] = sri.linear_velocity;
r["metadata"] = sri.metadata;
return r;
}
Physics2DDirectSpaceState::Physics2DDirectSpaceState() {
}
void Physics2DDirectSpaceState::_bind_methods() {
ClassDB::bind_method(D_METHOD("intersect_point", "point", "max_results", "exclude", "collision_layer", "collide_with_bodies", "collide_with_areas"), &Physics2DDirectSpaceState::_intersect_point, DEFVAL(32), DEFVAL(Array()), DEFVAL(0x7FFFFFFF), DEFVAL(true), DEFVAL(false));
ClassDB::bind_method(D_METHOD("intersect_point_on_canvas", "point", "canvas_instance_id", "max_results", "exclude", "collision_layer", "collide_with_bodies", "collide_with_areas"), &Physics2DDirectSpaceState::_intersect_point_on_canvas, DEFVAL(32), DEFVAL(Array()), DEFVAL(0x7FFFFFFF), DEFVAL(true), DEFVAL(false));
ClassDB::bind_method(D_METHOD("intersect_ray", "from", "to", "exclude", "collision_layer", "collide_with_bodies", "collide_with_areas"), &Physics2DDirectSpaceState::_intersect_ray, DEFVAL(Array()), DEFVAL(0x7FFFFFFF), DEFVAL(true), DEFVAL(false));
ClassDB::bind_method(D_METHOD("intersect_shape", "shape", "max_results"), &Physics2DDirectSpaceState::_intersect_shape, DEFVAL(32));
ClassDB::bind_method(D_METHOD("cast_motion", "shape"), &Physics2DDirectSpaceState::_cast_motion);
ClassDB::bind_method(D_METHOD("collide_shape", "shape", "max_results"), &Physics2DDirectSpaceState::_collide_shape, DEFVAL(32));
ClassDB::bind_method(D_METHOD("get_rest_info", "shape"), &Physics2DDirectSpaceState::_get_rest_info);
}
int Physics2DShapeQueryResult::get_result_count() const {
return result.size();
}
RID Physics2DShapeQueryResult::get_result_rid(int p_idx) const {
return result[p_idx].rid;
}
ObjectID Physics2DShapeQueryResult::get_result_object_id(int p_idx) const {
return result[p_idx].collider_id;
}
Object *Physics2DShapeQueryResult::get_result_object(int p_idx) const {
return result[p_idx].collider;
}
int Physics2DShapeQueryResult::get_result_object_shape(int p_idx) const {
return result[p_idx].shape;
}
Physics2DShapeQueryResult::Physics2DShapeQueryResult() {
}
void Physics2DShapeQueryResult::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_result_count"), &Physics2DShapeQueryResult::get_result_count);
ClassDB::bind_method(D_METHOD("get_result_rid", "idx"), &Physics2DShapeQueryResult::get_result_rid);
ClassDB::bind_method(D_METHOD("get_result_object_id", "idx"), &Physics2DShapeQueryResult::get_result_object_id);
ClassDB::bind_method(D_METHOD("get_result_object", "idx"), &Physics2DShapeQueryResult::get_result_object);
ClassDB::bind_method(D_METHOD("get_result_object_shape", "idx"), &Physics2DShapeQueryResult::get_result_object_shape);
}
///////////////////////////////
Vector2 Physics2DTestMotionResult::get_motion() const {
return result.motion;
}
Vector2 Physics2DTestMotionResult::get_motion_remainder() const {
return result.remainder;
}
Vector2 Physics2DTestMotionResult::get_collision_point() const {
return result.collision_point;
}
Vector2 Physics2DTestMotionResult::get_collision_normal() const {
return result.collision_normal;
}
Vector2 Physics2DTestMotionResult::get_collider_velocity() const {
return result.collider_velocity;
}
ObjectID Physics2DTestMotionResult::get_collider_id() const {
return result.collider_id;
}
RID Physics2DTestMotionResult::get_collider_rid() const {
return result.collider;
}
Object *Physics2DTestMotionResult::get_collider() const {
return ObjectDB::get_instance(result.collider_id);
}
int Physics2DTestMotionResult::get_collider_shape() const {
return result.collider_shape;
}
void Physics2DTestMotionResult::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_motion"), &Physics2DTestMotionResult::get_motion);
ClassDB::bind_method(D_METHOD("get_motion_remainder"), &Physics2DTestMotionResult::get_motion_remainder);
ClassDB::bind_method(D_METHOD("get_collision_point"), &Physics2DTestMotionResult::get_collision_point);
ClassDB::bind_method(D_METHOD("get_collision_normal"), &Physics2DTestMotionResult::get_collision_normal);
ClassDB::bind_method(D_METHOD("get_collider_velocity"), &Physics2DTestMotionResult::get_collider_velocity);
ClassDB::bind_method(D_METHOD("get_collider_id"), &Physics2DTestMotionResult::get_collider_id);
ClassDB::bind_method(D_METHOD("get_collider_rid"), &Physics2DTestMotionResult::get_collider_rid);
ClassDB::bind_method(D_METHOD("get_collider"), &Physics2DTestMotionResult::get_collider);
ClassDB::bind_method(D_METHOD("get_collider_shape"), &Physics2DTestMotionResult::get_collider_shape);
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion"), "", "get_motion");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "motion_remainder"), "", "get_motion_remainder");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "collision_point"), "", "get_collision_point");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "collision_normal"), "", "get_collision_normal");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "collider_velocity"), "", "get_collider_velocity");
ADD_PROPERTY(PropertyInfo(Variant::INT, "collider_id", PROPERTY_HINT_OBJECT_ID), "", "get_collider_id");
ADD_PROPERTY(PropertyInfo(Variant::_RID, "collider_rid"), "", "get_collider_rid");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "collider"), "", "get_collider");
ADD_PROPERTY(PropertyInfo(Variant::INT, "collider_shape"), "", "get_collider_shape");
}
Physics2DTestMotionResult::Physics2DTestMotionResult() {
colliding = false;
result.collider_id = 0;
result.collider_shape = 0;
}
///////////////////////////////////////
bool Physics2DServer::_body_test_motion(RID p_body, const Transform2D &p_from, const Vector2 &p_motion, bool p_infinite_inertia, float p_margin, const Ref<Physics2DTestMotionResult> &p_result) {
MotionResult *r = NULL;
if (p_result.is_valid())
r = p_result->get_result_ptr();
return body_test_motion(p_body, p_from, p_motion, p_infinite_inertia, p_margin, r);
}
void Physics2DServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("line_shape_create"), &Physics2DServer::line_shape_create);
ClassDB::bind_method(D_METHOD("ray_shape_create"), &Physics2DServer::ray_shape_create);
ClassDB::bind_method(D_METHOD("segment_shape_create"), &Physics2DServer::segment_shape_create);
ClassDB::bind_method(D_METHOD("circle_shape_create"), &Physics2DServer::circle_shape_create);
ClassDB::bind_method(D_METHOD("rectangle_shape_create"), &Physics2DServer::rectangle_shape_create);
ClassDB::bind_method(D_METHOD("capsule_shape_create"), &Physics2DServer::capsule_shape_create);
ClassDB::bind_method(D_METHOD("convex_polygon_shape_create"), &Physics2DServer::convex_polygon_shape_create);
ClassDB::bind_method(D_METHOD("concave_polygon_shape_create"), &Physics2DServer::concave_polygon_shape_create);
ClassDB::bind_method(D_METHOD("shape_set_data", "shape", "data"), &Physics2DServer::shape_set_data);
ClassDB::bind_method(D_METHOD("shape_get_type", "shape"), &Physics2DServer::shape_get_type);
ClassDB::bind_method(D_METHOD("shape_get_data", "shape"), &Physics2DServer::shape_get_data);
ClassDB::bind_method(D_METHOD("space_create"), &Physics2DServer::space_create);
ClassDB::bind_method(D_METHOD("space_set_active", "space", "active"), &Physics2DServer::space_set_active);
ClassDB::bind_method(D_METHOD("space_is_active", "space"), &Physics2DServer::space_is_active);
ClassDB::bind_method(D_METHOD("space_set_param", "space", "param", "value"), &Physics2DServer::space_set_param);
ClassDB::bind_method(D_METHOD("space_get_param", "space", "param"), &Physics2DServer::space_get_param);
ClassDB::bind_method(D_METHOD("space_get_direct_state", "space"), &Physics2DServer::space_get_direct_state);
ClassDB::bind_method(D_METHOD("area_create"), &Physics2DServer::area_create);
ClassDB::bind_method(D_METHOD("area_set_space", "area", "space"), &Physics2DServer::area_set_space);
ClassDB::bind_method(D_METHOD("area_get_space", "area"), &Physics2DServer::area_get_space);
ClassDB::bind_method(D_METHOD("area_set_space_override_mode", "area", "mode"), &Physics2DServer::area_set_space_override_mode);
ClassDB::bind_method(D_METHOD("area_get_space_override_mode", "area"), &Physics2DServer::area_get_space_override_mode);
ClassDB::bind_method(D_METHOD("area_add_shape", "area", "shape", "transform", "disabled"), &Physics2DServer::area_add_shape, DEFVAL(Transform2D()), DEFVAL(false));
ClassDB::bind_method(D_METHOD("area_set_shape", "area", "shape_idx", "shape"), &Physics2DServer::area_set_shape);
ClassDB::bind_method(D_METHOD("area_set_shape_transform", "area", "shape_idx", "transform"), &Physics2DServer::area_set_shape_transform);
ClassDB::bind_method(D_METHOD("area_set_shape_disabled", "area", "shape_idx", "disabled"), &Physics2DServer::area_set_shape_disabled);
ClassDB::bind_method(D_METHOD("area_get_shape_count", "area"), &Physics2DServer::area_get_shape_count);
ClassDB::bind_method(D_METHOD("area_get_shape", "area", "shape_idx"), &Physics2DServer::area_get_shape);
ClassDB::bind_method(D_METHOD("area_get_shape_transform", "area", "shape_idx"), &Physics2DServer::area_get_shape_transform);
ClassDB::bind_method(D_METHOD("area_remove_shape", "area", "shape_idx"), &Physics2DServer::area_remove_shape);
ClassDB::bind_method(D_METHOD("area_clear_shapes", "area"), &Physics2DServer::area_clear_shapes);
ClassDB::bind_method(D_METHOD("area_set_collision_layer", "area", "layer"), &Physics2DServer::area_set_collision_layer);
ClassDB::bind_method(D_METHOD("area_set_collision_mask", "area", "mask"), &Physics2DServer::area_set_collision_mask);
ClassDB::bind_method(D_METHOD("area_set_param", "area", "param", "value"), &Physics2DServer::area_set_param);
ClassDB::bind_method(D_METHOD("area_set_transform", "area", "transform"), &Physics2DServer::area_set_transform);
ClassDB::bind_method(D_METHOD("area_get_param", "area", "param"), &Physics2DServer::area_get_param);
ClassDB::bind_method(D_METHOD("area_get_transform", "area"), &Physics2DServer::area_get_transform);
ClassDB::bind_method(D_METHOD("area_attach_object_instance_id", "area", "id"), &Physics2DServer::area_attach_object_instance_id);
ClassDB::bind_method(D_METHOD("area_get_object_instance_id", "area"), &Physics2DServer::area_get_object_instance_id);
ClassDB::bind_method(D_METHOD("area_attach_canvas_instance_id", "area", "id"), &Physics2DServer::area_attach_canvas_instance_id);
ClassDB::bind_method(D_METHOD("area_get_canvas_instance_id", "area"), &Physics2DServer::area_get_canvas_instance_id);
ClassDB::bind_method(D_METHOD("area_set_monitor_callback", "area", "receiver", "method"), &Physics2DServer::area_set_monitor_callback);
ClassDB::bind_method(D_METHOD("area_set_area_monitor_callback", "area", "receiver", "method"), &Physics2DServer::area_set_area_monitor_callback);
ClassDB::bind_method(D_METHOD("area_set_monitorable", "area", "monitorable"), &Physics2DServer::area_set_monitorable);
ClassDB::bind_method(D_METHOD("body_create"), &Physics2DServer::body_create);
ClassDB::bind_method(D_METHOD("body_set_space", "body", "space"), &Physics2DServer::body_set_space);
ClassDB::bind_method(D_METHOD("body_get_space", "body"), &Physics2DServer::body_get_space);
ClassDB::bind_method(D_METHOD("body_set_mode", "body", "mode"), &Physics2DServer::body_set_mode);
ClassDB::bind_method(D_METHOD("body_get_mode", "body"), &Physics2DServer::body_get_mode);
ClassDB::bind_method(D_METHOD("body_add_shape", "body", "shape", "transform", "disabled"), &Physics2DServer::body_add_shape, DEFVAL(Transform2D()), DEFVAL(false));
ClassDB::bind_method(D_METHOD("body_set_shape", "body", "shape_idx", "shape"), &Physics2DServer::body_set_shape);
ClassDB::bind_method(D_METHOD("body_set_shape_transform", "body", "shape_idx", "transform"), &Physics2DServer::body_set_shape_transform);
ClassDB::bind_method(D_METHOD("body_set_shape_metadata", "body", "shape_idx", "metadata"), &Physics2DServer::body_set_shape_metadata);
ClassDB::bind_method(D_METHOD("body_get_shape_count", "body"), &Physics2DServer::body_get_shape_count);
ClassDB::bind_method(D_METHOD("body_get_shape", "body", "shape_idx"), &Physics2DServer::body_get_shape);
ClassDB::bind_method(D_METHOD("body_get_shape_transform", "body", "shape_idx"), &Physics2DServer::body_get_shape_transform);
ClassDB::bind_method(D_METHOD("body_get_shape_metadata", "body", "shape_idx"), &Physics2DServer::body_get_shape_metadata);
ClassDB::bind_method(D_METHOD("body_remove_shape", "body", "shape_idx"), &Physics2DServer::body_remove_shape);
ClassDB::bind_method(D_METHOD("body_clear_shapes", "body"), &Physics2DServer::body_clear_shapes);
ClassDB::bind_method(D_METHOD("body_set_shape_disabled", "body", "shape_idx", "disabled"), &Physics2DServer::body_set_shape_disabled);
ClassDB::bind_method(D_METHOD("body_set_shape_as_one_way_collision", "body", "shape_idx", "enable", "margin"), &Physics2DServer::body_set_shape_as_one_way_collision);
ClassDB::bind_method(D_METHOD("body_attach_object_instance_id", "body", "id"), &Physics2DServer::body_attach_object_instance_id);
ClassDB::bind_method(D_METHOD("body_get_object_instance_id", "body"), &Physics2DServer::body_get_object_instance_id);
ClassDB::bind_method(D_METHOD("body_attach_canvas_instance_id", "body", "id"), &Physics2DServer::body_attach_canvas_instance_id);
ClassDB::bind_method(D_METHOD("body_get_canvas_instance_id", "body"), &Physics2DServer::body_get_canvas_instance_id);
ClassDB::bind_method(D_METHOD("body_set_continuous_collision_detection_mode", "body", "mode"), &Physics2DServer::body_set_continuous_collision_detection_mode);
ClassDB::bind_method(D_METHOD("body_get_continuous_collision_detection_mode", "body"), &Physics2DServer::body_get_continuous_collision_detection_mode);
ClassDB::bind_method(D_METHOD("body_set_collision_layer", "body", "layer"), &Physics2DServer::body_set_collision_layer);
ClassDB::bind_method(D_METHOD("body_get_collision_layer", "body"), &Physics2DServer::body_get_collision_layer);
ClassDB::bind_method(D_METHOD("body_set_collision_mask", "body", "mask"), &Physics2DServer::body_set_collision_mask);
ClassDB::bind_method(D_METHOD("body_get_collision_mask", "body"), &Physics2DServer::body_get_collision_mask);
ClassDB::bind_method(D_METHOD("body_set_param", "body", "param", "value"), &Physics2DServer::body_set_param);
ClassDB::bind_method(D_METHOD("body_get_param", "body", "param"), &Physics2DServer::body_get_param);
ClassDB::bind_method(D_METHOD("body_set_state", "body", "state", "value"), &Physics2DServer::body_set_state);
ClassDB::bind_method(D_METHOD("body_get_state", "body", "state"), &Physics2DServer::body_get_state);
ClassDB::bind_method(D_METHOD("body_apply_central_impulse", "body", "impulse"), &Physics2DServer::body_apply_central_impulse);
ClassDB::bind_method(D_METHOD("body_apply_torque_impulse", "body", "impulse"), &Physics2DServer::body_apply_torque_impulse);
ClassDB::bind_method(D_METHOD("body_apply_impulse", "body", "position", "impulse"), &Physics2DServer::body_apply_impulse);
ClassDB::bind_method(D_METHOD("body_add_central_force", "body", "force"), &Physics2DServer::body_add_central_force);
ClassDB::bind_method(D_METHOD("body_add_force", "body", "offset", "force"), &Physics2DServer::body_add_force);
ClassDB::bind_method(D_METHOD("body_add_torque", "body", "torque"), &Physics2DServer::body_add_torque);
ClassDB::bind_method(D_METHOD("body_set_axis_velocity", "body", "axis_velocity"), &Physics2DServer::body_set_axis_velocity);
ClassDB::bind_method(D_METHOD("body_add_collision_exception", "body", "excepted_body"), &Physics2DServer::body_add_collision_exception);
ClassDB::bind_method(D_METHOD("body_remove_collision_exception", "body", "excepted_body"), &Physics2DServer::body_remove_collision_exception);
ClassDB::bind_method(D_METHOD("body_set_max_contacts_reported", "body", "amount"), &Physics2DServer::body_set_max_contacts_reported);
ClassDB::bind_method(D_METHOD("body_get_max_contacts_reported", "body"), &Physics2DServer::body_get_max_contacts_reported);
ClassDB::bind_method(D_METHOD("body_set_omit_force_integration", "body", "enable"), &Physics2DServer::body_set_omit_force_integration);
ClassDB::bind_method(D_METHOD("body_is_omitting_force_integration", "body"), &Physics2DServer::body_is_omitting_force_integration);
ClassDB::bind_method(D_METHOD("body_set_force_integration_callback", "body", "receiver", "method", "userdata"), &Physics2DServer::body_set_force_integration_callback, DEFVAL(Variant()));
ClassDB::bind_method(D_METHOD("body_test_motion", "body", "from", "motion", "infinite_inertia", "margin", "result"), &Physics2DServer::_body_test_motion, DEFVAL(0.08), DEFVAL(Variant()));
ClassDB::bind_method(D_METHOD("body_get_direct_state", "body"), &Physics2DServer::body_get_direct_state);
/* JOINT API */
ClassDB::bind_method(D_METHOD("joint_set_param", "joint", "param", "value"), &Physics2DServer::joint_set_param);
ClassDB::bind_method(D_METHOD("joint_get_param", "joint", "param"), &Physics2DServer::joint_get_param);
ClassDB::bind_method(D_METHOD("pin_joint_create", "anchor", "body_a", "body_b"), &Physics2DServer::pin_joint_create, DEFVAL(RID()));
ClassDB::bind_method(D_METHOD("groove_joint_create", "groove1_a", "groove2_a", "anchor_b", "body_a", "body_b"), &Physics2DServer::groove_joint_create, DEFVAL(RID()), DEFVAL(RID()));
ClassDB::bind_method(D_METHOD("damped_spring_joint_create", "anchor_a", "anchor_b", "body_a", "body_b"), &Physics2DServer::damped_spring_joint_create, DEFVAL(RID()));
ClassDB::bind_method(D_METHOD("damped_string_joint_set_param", "joint", "param", "value"), &Physics2DServer::damped_string_joint_set_param);
ClassDB::bind_method(D_METHOD("damped_string_joint_get_param", "joint", "param"), &Physics2DServer::damped_string_joint_get_param);
ClassDB::bind_method(D_METHOD("joint_get_type", "joint"), &Physics2DServer::joint_get_type);
ClassDB::bind_method(D_METHOD("free_rid", "rid"), &Physics2DServer::free);
ClassDB::bind_method(D_METHOD("set_active", "active"), &Physics2DServer::set_active);
ClassDB::bind_method(D_METHOD("get_process_info", "process_info"), &Physics2DServer::get_process_info);
BIND_ENUM_CONSTANT(SPACE_PARAM_CONTACT_RECYCLE_RADIUS);
BIND_ENUM_CONSTANT(SPACE_PARAM_CONTACT_MAX_SEPARATION);
BIND_ENUM_CONSTANT(SPACE_PARAM_BODY_MAX_ALLOWED_PENETRATION);
BIND_ENUM_CONSTANT(SPACE_PARAM_BODY_LINEAR_VELOCITY_SLEEP_THRESHOLD);
BIND_ENUM_CONSTANT(SPACE_PARAM_BODY_ANGULAR_VELOCITY_SLEEP_THRESHOLD);
BIND_ENUM_CONSTANT(SPACE_PARAM_BODY_TIME_TO_SLEEP);
BIND_ENUM_CONSTANT(SPACE_PARAM_CONSTRAINT_DEFAULT_BIAS);
BIND_ENUM_CONSTANT(SPACE_PARAM_TEST_MOTION_MIN_CONTACT_DEPTH);
BIND_ENUM_CONSTANT(SHAPE_LINE);
BIND_ENUM_CONSTANT(SHAPE_RAY);
BIND_ENUM_CONSTANT(SHAPE_SEGMENT);
BIND_ENUM_CONSTANT(SHAPE_CIRCLE);
BIND_ENUM_CONSTANT(SHAPE_RECTANGLE);
BIND_ENUM_CONSTANT(SHAPE_CAPSULE);
BIND_ENUM_CONSTANT(SHAPE_CONVEX_POLYGON);
BIND_ENUM_CONSTANT(SHAPE_CONCAVE_POLYGON);
BIND_ENUM_CONSTANT(SHAPE_CUSTOM);
BIND_ENUM_CONSTANT(AREA_PARAM_GRAVITY);
BIND_ENUM_CONSTANT(AREA_PARAM_GRAVITY_VECTOR);
BIND_ENUM_CONSTANT(AREA_PARAM_GRAVITY_IS_POINT);
BIND_ENUM_CONSTANT(AREA_PARAM_GRAVITY_DISTANCE_SCALE);
BIND_ENUM_CONSTANT(AREA_PARAM_GRAVITY_POINT_ATTENUATION);
BIND_ENUM_CONSTANT(AREA_PARAM_LINEAR_DAMP);
BIND_ENUM_CONSTANT(AREA_PARAM_ANGULAR_DAMP);
BIND_ENUM_CONSTANT(AREA_PARAM_PRIORITY);
BIND_ENUM_CONSTANT(AREA_SPACE_OVERRIDE_DISABLED);
BIND_ENUM_CONSTANT(AREA_SPACE_OVERRIDE_COMBINE);
BIND_ENUM_CONSTANT(AREA_SPACE_OVERRIDE_COMBINE_REPLACE);
BIND_ENUM_CONSTANT(AREA_SPACE_OVERRIDE_REPLACE);
BIND_ENUM_CONSTANT(AREA_SPACE_OVERRIDE_REPLACE_COMBINE);
BIND_ENUM_CONSTANT(BODY_MODE_STATIC);
BIND_ENUM_CONSTANT(BODY_MODE_KINEMATIC);
BIND_ENUM_CONSTANT(BODY_MODE_RIGID);
BIND_ENUM_CONSTANT(BODY_MODE_CHARACTER);
BIND_ENUM_CONSTANT(BODY_PARAM_BOUNCE);
BIND_ENUM_CONSTANT(BODY_PARAM_FRICTION);
BIND_ENUM_CONSTANT(BODY_PARAM_MASS);
BIND_ENUM_CONSTANT(BODY_PARAM_INERTIA);
BIND_ENUM_CONSTANT(BODY_PARAM_GRAVITY_SCALE);
BIND_ENUM_CONSTANT(BODY_PARAM_LINEAR_DAMP);
BIND_ENUM_CONSTANT(BODY_PARAM_ANGULAR_DAMP);
BIND_ENUM_CONSTANT(BODY_PARAM_MAX);
BIND_ENUM_CONSTANT(BODY_STATE_TRANSFORM);
BIND_ENUM_CONSTANT(BODY_STATE_LINEAR_VELOCITY);
BIND_ENUM_CONSTANT(BODY_STATE_ANGULAR_VELOCITY);
BIND_ENUM_CONSTANT(BODY_STATE_SLEEPING);
BIND_ENUM_CONSTANT(BODY_STATE_CAN_SLEEP);
BIND_ENUM_CONSTANT(JOINT_PIN);
BIND_ENUM_CONSTANT(JOINT_GROOVE);
BIND_ENUM_CONSTANT(JOINT_DAMPED_SPRING);
BIND_ENUM_CONSTANT(JOINT_PARAM_BIAS);
BIND_ENUM_CONSTANT(JOINT_PARAM_MAX_BIAS);
BIND_ENUM_CONSTANT(JOINT_PARAM_MAX_FORCE);
BIND_ENUM_CONSTANT(DAMPED_STRING_REST_LENGTH);
BIND_ENUM_CONSTANT(DAMPED_STRING_STIFFNESS);
BIND_ENUM_CONSTANT(DAMPED_STRING_DAMPING);
BIND_ENUM_CONSTANT(CCD_MODE_DISABLED);
BIND_ENUM_CONSTANT(CCD_MODE_CAST_RAY);
BIND_ENUM_CONSTANT(CCD_MODE_CAST_SHAPE);
BIND_ENUM_CONSTANT(AREA_BODY_ADDED);
BIND_ENUM_CONSTANT(AREA_BODY_REMOVED);
BIND_ENUM_CONSTANT(INFO_ACTIVE_OBJECTS);
BIND_ENUM_CONSTANT(INFO_COLLISION_PAIRS);
BIND_ENUM_CONSTANT(INFO_ISLAND_COUNT);
}
Physics2DServer::Physics2DServer() {
singleton = this;
}
Physics2DServer::~Physics2DServer() {
singleton = NULL;
}
Vector<Physics2DServerManager::ClassInfo> Physics2DServerManager::physics_2d_servers;
int Physics2DServerManager::default_server_id = -1;
int Physics2DServerManager::default_server_priority = -1;
const String Physics2DServerManager::setting_property_name("physics/2d/physics_engine");
void Physics2DServerManager::on_servers_changed() {
String physics_servers("DEFAULT");
for (int i = get_servers_count() - 1; 0 <= i; --i) {
physics_servers += "," + get_server_name(i);
}
ProjectSettings::get_singleton()->set_custom_property_info(setting_property_name, PropertyInfo(Variant::STRING, setting_property_name, PROPERTY_HINT_ENUM, physics_servers));
}
void Physics2DServerManager::register_server(const String &p_name, CreatePhysics2DServerCallback p_creat_callback) {
ERR_FAIL_COND(!p_creat_callback);
ERR_FAIL_COND(find_server_id(p_name) != -1);
physics_2d_servers.push_back(ClassInfo(p_name, p_creat_callback));
on_servers_changed();
}
void Physics2DServerManager::set_default_server(const String &p_name, int p_priority) {
const int id = find_server_id(p_name);
ERR_FAIL_COND(id == -1); // Not found
if (default_server_priority < p_priority) {
default_server_id = id;
default_server_priority = p_priority;
}
}
int Physics2DServerManager::find_server_id(const String &p_name) {
for (int i = physics_2d_servers.size() - 1; 0 <= i; --i) {
if (p_name == physics_2d_servers[i].name) {
return i;
}
}
return -1;
}
int Physics2DServerManager::get_servers_count() {
return physics_2d_servers.size();
}
String Physics2DServerManager::get_server_name(int p_id) {
ERR_FAIL_INDEX_V(p_id, get_servers_count(), "");
return physics_2d_servers[p_id].name;
}
Physics2DServer *Physics2DServerManager::new_default_server() {
ERR_FAIL_COND_V(default_server_id == -1, NULL);
return physics_2d_servers[default_server_id].create_callback();
}
Physics2DServer *Physics2DServerManager::new_server(const String &p_name) {
int id = find_server_id(p_name);
if (id == -1) {
return NULL;
} else {
return physics_2d_servers[id].create_callback();
}
}