BGE: replace mesh works for Soft Body (including reinstantiation of physics soft body mesh).

Even a static mesh can be used as replacement: the mesh
will be instantiated with the soft body settings of the
object. The position and orientation of the soft body
is preserved after the replacement.

Known limitation: the velocity of the soft body is reset
aftet the replacement. This is because soft body don't
have a well defined velocity.

1 files changed, 102 insertions, 0 deletions

diff --git a/source/gameengine/Converter/KX_SoftBodyDeformer.h b/source/gameengine/Converter/KX_SoftBodyDeformer.h
new file mode 100644
index 00000000000..b55b2a745c0
--- /dev/null
+++ b/source/gameengine/Converter/KX_SoftBodyDeformer.h
@@ -0,0 +1,102 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef KX_SOFTBODYDEFORMER
+#define KX_SOFTBODYDEFORMER
+
+#ifdef WIN32
+#pragma warning (disable:4786) // get rid of stupid stl-visual compiler debug warning
+#endif //WIN32
+
+#include "RAS_Deformer.h"
+#include "BL_DeformableGameObject.h"
+#include <vector>
+
+
+class KX_SoftBodyDeformer : public RAS_Deformer
+{
+	class RAS_MeshObject*			m_pMeshObject;
+	class BL_DeformableGameObject*	m_gameobj;
+
+public:
+	KX_SoftBodyDeformer(RAS_MeshObject*	pMeshObject,BL_DeformableGameObject* gameobj)
+		:m_pMeshObject(pMeshObject),
+		m_gameobj(gameobj)
+	{
+		//printf("KX_SoftBodyDeformer\n");
+	};
+
+	virtual ~KX_SoftBodyDeformer()
+	{
+		//printf("~KX_SoftBodyDeformer\n");
+	};
+	virtual void Relink(GEN_Map<class GEN_HashedPtr, void*>*map);
+	virtual bool Apply(class RAS_IPolyMaterial *polymat);
+	virtual bool Update(void)
+	{
+		//printf("update\n");
+		m_bDynamic = true;
+		return true;//??
+	}
+	virtual bool UpdateBuckets(void)
+	{
+		// this is to update the mesh slots outside the rasterizer, 
+		// no need to do it for this deformer, it's done in any case in Apply()
+		return false;
+	}
+
+	virtual RAS_Deformer *GetReplica()
+	{
+		KX_SoftBodyDeformer* deformer = new KX_SoftBodyDeformer(*this);
+		deformer->ProcessReplica();
+		return deformer;
+	}
+	virtual void ProcessReplica()
+	{
+		// we have two pointers to deal with but we cannot do it now, will be done in Relink
+		m_bDynamic = false;
+	}
+	virtual bool SkipVertexTransform()
+	{
+		return true;
+	}
+
+protected:
+	//class RAS_MeshObject	*m_pMesh;
+
+#ifdef WITH_CXX_GUARDEDALLOC
+public:
+	void *operator new( unsigned int num_bytes) { return MEM_mallocN(num_bytes, "GE:BL_ShapeDeformer"); }
+	void operator delete( void *mem ) { MEM_freeN(mem); }
+#endif
+};
+
+
+#endif
+