rigidbody: Add rigid body simulation

Add operators to add/remove rigid body world and objects.
Add UI scripts.

The rigid body simulation works on scene level and overrides the
position/orientation of rigid bodies when active.
It does not deform meshes or generate data so there is no modifier.

Usage:
* Add rigid body world in the scene tab
* Create a group
* Add objects to the group
* Assign group to the rigid body world
* Play animation
For convenience the rigid body tools operators in the tools panel of the 3d view
will add a world, group and add objects to the group automatically so you only have
to press one button to add/remove rigid bodies to the simulation.

Part of GSoC 2010 and 2012.
Authors: Joshua Leung (aligorith), Sergej Reich (sergof)

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index e48cf369d4f..b0938f78435 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -1206,6 +1206,12 @@ void BKE_scene_update_for_newframe(Main *bmain, Scene *sce, unsigned int lay)
 	BKE_animsys_evaluate_all_animation(bmain, sce, ctime);
 	/*...done with recusrive funcs */
 
+	/* run rigidbody sim */
+	// XXX: this position may still change, objects not being updated correctly before simulation is run
+	// NOTE: current position is so that rigidbody sim affects other objects
+	if (BKE_scene_check_rigidbody_active(sce))
+		BKE_rigidbody_do_simulation(sce, ctime);
+
 	/* clear "LIB_DOIT" flag from all materials, to prevent infinite recursion problems later 
 	 * when trying to find materials with drivers that need evaluating [#32017] 
 	 */