Modified RigidBody, PhysicsDirectBodyState, PhysicsServer, and their respective 2D counterparts to be more consistent and to include more useful methods.

RigidBody:
- Added add_central_force
- Added add_force
- Added add_torque
- Added apply_central_impulse

RigidBody2D:
- Added add_central_force
- Added add_torque
- Added apply_central_impulse
- Added apply_torque_impulse

PhysicsDirectBodyState:
- Added apply_central_impulse

Physics2DDirectBodyState:
- Added add_central_force
- Added add_force
- Added add_torque
- Added apply_central_impulse
- Added apply_impulse
- Added apply_torque_impulse

PhysicsServer:
- Added body_add_force
- Added body_add_torque
- Added body_add_central_force
- Added body_apply_central_impulse

Physics2DServer:
- Added body_add_torque
- Added body_add_central_force
- Added body_apply_central_impulse
- Added body_apply_torque_impulse

Also fixed some small bugs along the way

2 files changed, 27 insertions, 0 deletions

diff --git a/scene/3d/physics_body.cpp b/scene/3d/physics_body.cpp
index 7529a0e524..c1b867d114 100644
--- a/scene/3d/physics_body.cpp
+++ b/scene/3d/physics_body.cpp
@@ -795,6 +795,22 @@ int RigidBody::get_max_contacts_reported() const {
 	return max_contacts_reported;
 }
 
+void RigidBody::add_central_force(const Vector3 &p_force) {
+	PhysicsServer::get_singleton()->body_add_central_force(get_rid(), p_force);
+}
+
+void RigidBody::add_force(const Vector3 &p_force, const Vector3 &p_pos) {
+	PhysicsServer::get_singleton()->body_add_force(get_rid(), p_force, p_pos);
+}
+
+void RigidBody::add_torque(const Vector3 &p_torque) {
+	PhysicsServer::get_singleton()->body_add_torque(get_rid(), p_torque);
+}
+
+void RigidBody::apply_central_impulse(const Vector3 &p_impulse) {
+	PhysicsServer::get_singleton()->body_apply_central_impulse(get_rid(), p_impulse);
+}
+
 void RigidBody::apply_impulse(const Vector3 &p_pos, const Vector3 &p_impulse) {
 
 	PhysicsServer::get_singleton()->body_apply_impulse(get_rid(), p_pos, p_impulse);
@@ -947,6 +963,12 @@ void RigidBody::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_using_continuous_collision_detection"), &RigidBody::is_using_continuous_collision_detection);
 
 	ClassDB::bind_method(D_METHOD("set_axis_velocity", "axis_velocity"), &RigidBody::set_axis_velocity);
+
+	ClassDB::bind_method(D_METHOD("add_central_force", "force"), &RigidBody::add_central_force);
+	ClassDB::bind_method(D_METHOD("add_force", "force", "position"), &RigidBody::add_force);
+	ClassDB::bind_method(D_METHOD("add_torque", "torque"), &RigidBody::add_torque);
+
+	ClassDB::bind_method(D_METHOD("apply_central_impulse", "impulse"), &RigidBody::apply_central_impulse);
 	ClassDB::bind_method(D_METHOD("apply_impulse", "position", "impulse"), &RigidBody::apply_impulse);
 	ClassDB::bind_method(D_METHOD("apply_torque_impulse", "impulse"), &RigidBody::apply_torque_impulse);
 
diff --git a/scene/3d/physics_body.h b/scene/3d/physics_body.h
index 44d6502be1..4143989671 100644
--- a/scene/3d/physics_body.h
+++ b/scene/3d/physics_body.h
@@ -254,6 +254,11 @@ public:
 
 	Array get_colliding_bodies() const;
 
+	void add_central_force(const Vector3 &p_force);
+	void add_force(const Vector3 &p_force, const Vector3 &p_pos);
+	void add_torque(const Vector3 &p_torque);
+
+	void apply_central_impulse(const Vector3 &p_impulse);
 	void apply_impulse(const Vector3 &p_pos, const Vector3 &p_impulse);
 	void apply_torque_impulse(const Vector3 &p_impulse);