bad_cast exception when use caterpillars

MechoSoma/Xreal/Bubble.h

@@ -8,7 +8,7 @@
 
 #pragma warning( disable : 4250 )  
 
-class Bubble :  virtual public Body, public GrowingBody, public OwnerProtection, ArcaneStatisticsService 
+class Bubble :  public GrowingBody, public OwnerProtection, ArcaneStatisticsService 
 {
 	ShareHandle<BubbleFieldSource> attractor;
 	Vect3f F_wind;

MechoSoma/Xreal/LittleSpider.h

@@ -7,7 +7,7 @@
 #include "HydrophobicObject.h"
 #pragma warning( disable : 4250 )  
 
-class LittleSpider : public CrawlingObject, public OwnerProtection, ArcaneStatisticsService, HydrophobicObject
+class LittleSpider : public CrawlingObject, public OwnerProtection, ArcaneStatisticsService, public HydrophobicObject
 {
 	DurationTimer target_timer;
 	DurationTimer time_to_live;

MechoSoma/Xreal/OwnerProtection.h

@@ -1,26 +1,21 @@
-// Author: @caiiiycuk
-#ifndef OWNER_PROTECTION
-#define OWNER_PROTECTION
+//////////////////////////////////////////////////////////////////
+// База для создания арканных объектов
+//	- защита хозяина
+//////////////////////////////////////////////////////////////////
+#ifndef __OwnerProtection_H__
+#define __OwnerProtection_H__
 
-class OwnerProtection {
+class OwnerProtection
+{
+	enum { default_duration = 2000 };
+	int owner_ID;
+	DurationTimer duration_;
 public:
-    int ID;
-	int time;
-    OwnerProtection(int ID): ID(ID) {}
-    OwnerProtection(): ID(0) {}
-    int owner() const {
-        return ID;
-    }
-    void reset_owner() {
-        ID = 0;
-    }
-    void set_owner(int ID, int time) {
-		this->ID = ID;
-		this->time = time;
-    }
-	int duration() {
-		return time;
-	}
+	OwnerProtection(int ID = 0) { owner_ID = ID; duration_.start(default_duration); }
+	virtual void set_owner(int ID, int duration__ = default_duration) { owner_ID = ID; duration_.start(duration__); }
+	void reset_owner() { owner_ID = 0; }
+	int owner() const { return duration_() ? owner_ID : 0; }
+	time_type duration(){ return duration_(); };
 };
 
-#endif
+#endif //__OwnerProtection_H__

MechoSoma/Xreal/TitaniumBall.h

@@ -11,7 +11,7 @@
 
 #pragma warning( disable : 4250 )  
 
-class TitaniumBall : virtual public Body, GrowingBody, public OwnerProtection, ArcaneStatisticsService 
+class TitaniumBall : public GrowingBody, public OwnerProtection, ArcaneStatisticsService 
 {
 public:
 	TitaniumBall(const Vect3f& R_, const Vect3f& V_, float damage__, int owner_ID);

MechoSoma/Xreal/Tomato.h

@@ -10,7 +10,7 @@
 
 #pragma warning( disable : 4250 )  
 
-class Tomato : virtual public Body, GrowingBody, public OwnerProtection, ArcaneStatisticsService 
+class Tomato : public GrowingBody, public OwnerProtection, ArcaneStatisticsService 
 {
 	Vect3f R0;
 public:

MechoSoma/Xreal/Worm.h

@@ -16,7 +16,7 @@ class Worm : public CrawlingObject
 	void body_overlap_reaction(Body& body);
 };
 
-class Caterpillar : public CrawlingObject, public OwnerProtection, ArcaneStatisticsService, HydrophobicObject
+class Caterpillar : public CrawlingObject, public OwnerProtection, ArcaneStatisticsService, public HydrophobicObject
 {
 	DurationTimer rudder_latency;
 	DurationTimer time_to_live;