/*************************************************************************/
/*  body_direct_state_2d_sw.cpp                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
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#include "body_direct_state_2d_sw.h"

#include "body_2d_sw.h"
#include "physics_server_2d_sw.h"
#include "space_2d_sw.h"

Vector2 PhysicsDirectBodyState2DSW::get_total_gravity() const {
	return body->gravity;
}

real_t PhysicsDirectBodyState2DSW::get_total_angular_damp() const {
	return body->area_angular_damp;
}

real_t PhysicsDirectBodyState2DSW::get_total_linear_damp() const {
	return body->area_linear_damp;
}

Vector2 PhysicsDirectBodyState2DSW::get_center_of_mass() const {
	return body->get_center_of_mass();
}

real_t PhysicsDirectBodyState2DSW::get_inverse_mass() const {
	return body->get_inv_mass();
}

real_t PhysicsDirectBodyState2DSW::get_inverse_inertia() const {
	return body->get_inv_inertia();
}

void PhysicsDirectBodyState2DSW::set_linear_velocity(const Vector2 &p_velocity) {
	body->set_active(true);
	body->set_linear_velocity(p_velocity);
}

Vector2 PhysicsDirectBodyState2DSW::get_linear_velocity() const {
	return body->get_linear_velocity();
}

void PhysicsDirectBodyState2DSW::set_angular_velocity(real_t p_velocity) {
	body->set_active(true);
	body->set_angular_velocity(p_velocity);
}

real_t PhysicsDirectBodyState2DSW::get_angular_velocity() const {
	return body->get_angular_velocity();
}

void PhysicsDirectBodyState2DSW::set_transform(const Transform2D &p_transform) {
	body->set_state(PhysicsServer2D::BODY_STATE_TRANSFORM, p_transform);
}

Transform2D PhysicsDirectBodyState2DSW::get_transform() const {
	return body->get_transform();
}

Vector2 PhysicsDirectBodyState2DSW::get_velocity_at_local_position(const Vector2 &p_position) const {
	return body->get_velocity_in_local_point(p_position);
}

void PhysicsDirectBodyState2DSW::add_central_force(const Vector2 &p_force) {
	body->set_active(true);
	body->add_central_force(p_force);
}

void PhysicsDirectBodyState2DSW::add_force(const Vector2 &p_force, const Vector2 &p_position) {
	body->set_active(true);
	body->add_force(p_force, p_position);
}

void PhysicsDirectBodyState2DSW::add_torque(real_t p_torque) {
	body->set_active(true);
	body->add_torque(p_torque);
}

void PhysicsDirectBodyState2DSW::apply_central_impulse(const Vector2 &p_impulse) {
	body->set_active(true);
	body->apply_central_impulse(p_impulse);
}

void PhysicsDirectBodyState2DSW::apply_impulse(const Vector2 &p_impulse, const Vector2 &p_position) {
	body->set_active(true);
	body->apply_impulse(p_impulse, p_position);
}

void PhysicsDirectBodyState2DSW::apply_torque_impulse(real_t p_torque) {
	body->set_active(true);
	body->apply_torque_impulse(p_torque);
}

void PhysicsDirectBodyState2DSW::set_sleep_state(bool p_enable) {
	body->set_active(!p_enable);
}

bool PhysicsDirectBodyState2DSW::is_sleeping() const {
	return !body->is_active();
}

int PhysicsDirectBodyState2DSW::get_contact_count() const {
	return body->contact_count;
}

Vector2 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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 PhysicsDirectBodyState2DSW::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;
}

Variant PhysicsDirectBodyState2DSW::get_contact_collider_shape_metadata(int p_contact_idx) const {
	ERR_FAIL_INDEX_V(p_contact_idx, body->contact_count, Variant());

	if (!PhysicsServer2DSW::singletonsw->body_owner.owns(body->contacts[p_contact_idx].collider)) {
		return Variant();
	}
	Body2DSW *other = PhysicsServer2DSW::singletonsw->body_owner.getornull(body->contacts[p_contact_idx].collider);

	int sidx = body->contacts[p_contact_idx].collider_shape;
	if (sidx < 0 || sidx >= other->get_shape_count()) {
		return Variant();
	}

	return other->get_shape_metadata(sidx);
}

PhysicsDirectSpaceState2D *PhysicsDirectBodyState2DSW::get_space_state() {
	return body->get_space()->get_direct_state();
}

real_t PhysicsDirectBodyState2DSW::get_step() const {
	return body->get_space()->get_last_step();
}