virtualx-engine/servers/physics_2d/godot_body_direct_state_2d.cpp
PouleyKetchoupp fc8c766ef9 Expose local center of mass in physics servers
Center of mass in body's local space is more useful than the transformed
one in some cases, like drawing its position for debug.

It's especially useful to get the generated local center of mass when
in auto mode (by default).

Physics Server BODY_PARAM_CENTER_OF_MASS:
Now always returns the local center of mass, instead of setting a local
center of mass and getting a transformed one.
This causes compatibility breaking, but it makes more sense for the
parameter to be consistent between getter and setter.

Direct Body State:
There are now two properties, because both of them can be useful in
different situations.
center_of_mass: relative position in global coordinates (same as before)
center_of_mass_local: position in local coordinates
2021-11-08 16:17:57 -07:00

182 lines
6.9 KiB
C++

/*************************************************************************/
/* godot_body_direct_state_2d.cpp */
/*************************************************************************/
/* This file is part of: */
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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#include "godot_body_direct_state_2d.h"
#include "godot_body_2d.h"
#include "godot_physics_server_2d.h"
#include "godot_space_2d.h"
Vector2 GodotPhysicsDirectBodyState2D::get_total_gravity() const {
return body->gravity;
}
real_t GodotPhysicsDirectBodyState2D::get_total_angular_damp() const {
return body->total_angular_damp;
}
real_t GodotPhysicsDirectBodyState2D::get_total_linear_damp() const {
return body->total_linear_damp;
}
Vector2 GodotPhysicsDirectBodyState2D::get_center_of_mass() const {
return body->get_center_of_mass();
}
Vector2 GodotPhysicsDirectBodyState2D::get_center_of_mass_local() const {
return body->get_center_of_mass_local();
}
real_t GodotPhysicsDirectBodyState2D::get_inverse_mass() const {
return body->get_inv_mass();
}
real_t GodotPhysicsDirectBodyState2D::get_inverse_inertia() const {
return body->get_inv_inertia();
}
void GodotPhysicsDirectBodyState2D::set_linear_velocity(const Vector2 &p_velocity) {
body->wakeup();
body->set_linear_velocity(p_velocity);
}
Vector2 GodotPhysicsDirectBodyState2D::get_linear_velocity() const {
return body->get_linear_velocity();
}
void GodotPhysicsDirectBodyState2D::set_angular_velocity(real_t p_velocity) {
body->wakeup();
body->set_angular_velocity(p_velocity);
}
real_t GodotPhysicsDirectBodyState2D::get_angular_velocity() const {
return body->get_angular_velocity();
}
void GodotPhysicsDirectBodyState2D::set_transform(const Transform2D &p_transform) {
body->set_state(PhysicsServer2D::BODY_STATE_TRANSFORM, p_transform);
}
Transform2D GodotPhysicsDirectBodyState2D::get_transform() const {
return body->get_transform();
}
Vector2 GodotPhysicsDirectBodyState2D::get_velocity_at_local_position(const Vector2 &p_position) const {
return body->get_velocity_in_local_point(p_position);
}
void GodotPhysicsDirectBodyState2D::add_central_force(const Vector2 &p_force) {
body->wakeup();
body->add_central_force(p_force);
}
void GodotPhysicsDirectBodyState2D::add_force(const Vector2 &p_force, const Vector2 &p_position) {
body->wakeup();
body->add_force(p_force, p_position);
}
void GodotPhysicsDirectBodyState2D::add_torque(real_t p_torque) {
body->wakeup();
body->add_torque(p_torque);
}
void GodotPhysicsDirectBodyState2D::apply_central_impulse(const Vector2 &p_impulse) {
body->wakeup();
body->apply_central_impulse(p_impulse);
}
void GodotPhysicsDirectBodyState2D::apply_impulse(const Vector2 &p_impulse, const Vector2 &p_position) {
body->wakeup();
body->apply_impulse(p_impulse, p_position);
}
void GodotPhysicsDirectBodyState2D::apply_torque_impulse(real_t p_torque) {
body->wakeup();
body->apply_torque_impulse(p_torque);
}
void GodotPhysicsDirectBodyState2D::set_sleep_state(bool p_enable) {
body->set_active(!p_enable);
}
bool GodotPhysicsDirectBodyState2D::is_sleeping() const {
return !body->is_active();
}
int GodotPhysicsDirectBodyState2D::get_contact_count() const {
return body->contact_count;
}
Vector2 GodotPhysicsDirectBodyState2D::get_contact_local_position(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, Vector2());
return body->contacts[p_contact_idx].local_pos;
}
Vector2 GodotPhysicsDirectBodyState2D::get_contact_local_normal(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, Vector2());
return body->contacts[p_contact_idx].local_normal;
}
int GodotPhysicsDirectBodyState2D::get_contact_local_shape(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, -1);
return body->contacts[p_contact_idx].local_shape;
}
RID GodotPhysicsDirectBodyState2D::get_contact_collider(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, RID());
return body->contacts[p_contact_idx].collider;
}
Vector2 GodotPhysicsDirectBodyState2D::get_contact_collider_position(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, Vector2());
return body->contacts[p_contact_idx].collider_pos;
}
ObjectID GodotPhysicsDirectBodyState2D::get_contact_collider_id(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, ObjectID());
return body->contacts[p_contact_idx].collider_instance_id;
}
int GodotPhysicsDirectBodyState2D::get_contact_collider_shape(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, 0);
return body->contacts[p_contact_idx].collider_shape;
}
Vector2 GodotPhysicsDirectBodyState2D::get_contact_collider_velocity_at_position(int p_contact_idx) const {
ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, Vector2());
return body->contacts[p_contact_idx].collider_velocity_at_pos;
}
PhysicsDirectSpaceState2D *GodotPhysicsDirectBodyState2D::get_space_state() {
return body->get_space()->get_direct_state();
}
real_t GodotPhysicsDirectBodyState2D::get_step() const {
return body->get_space()->get_last_step();
}