X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=examples%2Fbassteroids%2Fsource%2Fphysics.cpp;h=a8d49ec4d0331cb98437c07a24264a6c724b88a8;hb=1819b186d60376a546722d99edd686e876b81d9f;hp=db8e494f4d4f179aa8e02eddad9b909f53e9a951;hpb=391f1ab3c7ca52a9990f516f4cdd7094f60350df;p=libs%2Fgame.git

diff --git a/examples/bassteroids/source/physics.cpp b/examples/bassteroids/source/physics.cpp
index db8e494..a8d49ec 100644
--- a/examples/bassteroids/source/physics.cpp
+++ b/examples/bassteroids/source/physics.cpp
@@ -75,7 +75,9 @@ void Physics::copy_in(SimulatedEntity &entity)
 	{
 		Game::Handle<RigidBody> body = entity.entity->get_body();
 		entity.inverse_mass = 1.0f/body->get_mass();
+		entity.moment_of_inertia = body->get_moment_of_inertia();
 		entity.velocity = body->get_velocity();
+		entity.angular_velocity = body->get_angular_velocity();
 	}
 }
 
@@ -90,6 +92,7 @@ void Physics::copy_out(SimulatedEntity &entity)
 	{
 		Game::Handle<RigidBody> body = entity.entity->get_body();
 		body->set_velocity(entity.velocity);
+		body->set_angular_velocity(entity.angular_velocity);
 	}
 }
 
@@ -102,6 +105,10 @@ void Physics::step(float dt_secs)
 		LinAl::Vector<float, 2> new_velocity = entity.velocity+entity.external_force*dt_secs*entity.inverse_mass;
 		entity.position += (entity.velocity+new_velocity)*(dt_secs/2);
 		entity.velocity = new_velocity;
+
+		Geometry::Angle<float> new_angular_velocity = entity.angular_velocity+Geometry::Angle<float>::from_radians(entity.external_torque*(dt_secs/entity.moment_of_inertia));
+		entity.rotation = wrap_positive(entity.rotation+(entity.angular_velocity+new_angular_velocity)*(dt_secs/2));
+		entity.angular_velocity = new_angular_velocity;
 	}
 }