BGE #30734: add support for physics linear and angular thresholds and deactivation time from python and GUI.

========================
The linear and angular thresholds set the speed limit (in m/s) and rotation limit (in rad/s)
under which a rigid body will go to sleep (stop moving) if it stays below the limits for a 
time equal or longer than the deactivation time (sleeping is disabled is deactivation time is 
set to 0).
These settings help reducing the processing spent on Physics during the game.

Previously they were only accessible from python but not working because of a bug. 
Now the python functions are working and the settings are available in the Physics panel
of the World settings when using the Blender Game render engine.

Python API:
  import PhysicsConstraints
  PhysicsConstraints.setDeactivationLinearTreshold(float)
  PhysicsConstraints.setDeactivationAngularTreshold(float)

2 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_blender.h b/source/blender/blenkernel/BKE_blender.h
index e2bca1bb93e..24386730ddb 100644
--- a/source/blender/blenkernel/BKE_blender.h
+++ b/source/blender/blenkernel/BKE_blender.h
@@ -42,7 +42,7 @@ extern "C" {
  * and keep comment above the defines.
  * Use STRINGIFY() rather than defining with quotes */
 #define BLENDER_VERSION         263
-#define BLENDER_SUBVERSION      7
+#define BLENDER_SUBVERSION      8
 
 #define BLENDER_MINVERSION      250
 #define BLENDER_MINSUBVERSION   0
diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 63efd194932..62d5459336b 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -516,6 +516,9 @@ Scene *BKE_scene_add(const char *name)
 	sce->gm.maxlogicstep = 5;
 	sce->gm.physubstep = 1;
 	sce->gm.maxphystep = 5;
+	sce->gm.lineardeactthreshold = 0.8f;
+	sce->gm.angulardeactthreshold = 1.0f;
+	sce->gm.deactivationtime = 0.0f;
 
 	sce->gm.flag = GAME_DISPLAY_LISTS;
 	sce->gm.matmode = GAME_MAT_MULTITEX;