BGE: Add physics constraints replication

This patch will add a physics constraints replication for group instances
(dupli group).
It also fix crashing when when a group instance is made from a linked
group instance and both are on the active layer.

Initial patch T31443 from moerdn (Martin Sell).

Reviewers: lordloki, sergof, moguri, sybren

Reviewed By: moguri, sybren

Differential Revision: https://developer.blender.org/D658

1 files changed, 10 insertions, 0 deletions

diff --git a/source/gameengine/Ketsji/KX_GameObject.h b/source/gameengine/Ketsji/KX_GameObject.h
index 7d1a934bcec..132e72c45e2 100644
--- a/source/gameengine/Ketsji/KX_GameObject.h
+++ b/source/gameengine/Ketsji/KX_GameObject.h
@@ -49,6 +49,7 @@
 #include "CTR_HashedPtr.h"
 #include "KX_Scene.h"
 #include "KX_KetsjiEngine.h" /* for m_anim_framerate */
+#include "DNA_constraint_types.h" /* for constraint replication */
 #include "DNA_object_types.h"
 #include "SCA_LogicManager.h" /* for ConvertPythonToGameObject to search object names */
 
@@ -117,6 +118,7 @@ protected:
 	SG_Node*							m_pSGNode;
 
 	MT_CmMatrix4x4						m_OpenGL_4x4Matrix;
+	std::vector<bRigidBodyJointConstraint*>	m_constraints;
 
 	KX_ObstacleSimulation*				m_pObstacleSimulation;
 
@@ -193,6 +195,14 @@ public:
 		void
 	UpdateBlenderObjectMatrix(Object* blendobj=NULL);
 
+	/**
+	 * Used for constraint replication for group instances.
+	 * The list of constraints is filled during data conversion.
+	 */
+	void AddConstraint(bRigidBodyJointConstraint *cons);
+	std::vector<bRigidBodyJointConstraint*> GetConstraints();
+	void ClearConstraints();
+
 	/** 
 	 * Get a pointer to the game object that is the parent of 
 	 * this object. Or NULL if there is no parent. The returned