diff --git a/cocos/2d/Android.mk b/cocos/2d/Android.mk
index 6d36b83b55..854d56829d 100644
--- a/cocos/2d/Android.mk
+++ b/cocos/2d/Android.mk
@@ -39,13 +39,13 @@ CCEventAcceleration.cpp \
 CCEventCustom.cpp \
 CCEventDispatcher.cpp \
 CCEventKeyboard.cpp \
-CCEventMouse.cpp \
-CCEventListenerMouse.cpp \
 CCEventListener.cpp \
 CCEventListenerAcceleration.cpp \
 CCEventListenerCustom.cpp \
 CCEventListenerKeyboard.cpp \
+CCEventListenerMouse.cpp \
 CCEventListenerTouch.cpp \
+CCEventMouse.cpp \
 CCEventTouch.cpp \
 CCFont.cpp \
 CCFontAtlas.cpp \
@@ -149,11 +149,6 @@ platform/CCThread.cpp \
 ../physics/CCPhysicsJoint.cpp \
 ../physics/CCPhysicsShape.cpp \
 ../physics/CCPhysicsWorld.cpp \
-../physics/box2d/CCPhysicsBodyInfo_box2d.cpp \
-../physics/box2d/CCPhysicsContactInfo_box2d.cpp \
-../physics/box2d/CCPhysicsJointInfo_box2d.cpp \
-../physics/box2d/CCPhysicsShapeInfo_box2d.cpp \
-../physics/box2d/CCPhysicsWorldInfo_box2d.cpp \
 ../physics/chipmunk/CCPhysicsBodyInfo_chipmunk.cpp \
 ../physics/chipmunk/CCPhysicsContactInfo_chipmunk.cpp \
 ../physics/chipmunk/CCPhysicsJointInfo_chipmunk.cpp \
diff --git a/cocos/2d/ccConfig.h b/cocos/2d/ccConfig.h
index b8729d0d28..f801066bfe 100644
--- a/cocos/2d/ccConfig.h
+++ b/cocos/2d/ccConfig.h
@@ -266,8 +266,4 @@ To enable set it to a value different than 0. Disabled by default.
 #define CC_LUA_ENGINE_DEBUG 0
 #endif
 
-#ifdef CC_USE_PHYSICS
-#define PHYSICS_CONTACT_POINT_MAX 4
-#endif
-
 #endif // __CCCONFIG_H__
diff --git a/cocos/physics/CCPhysicsContact.cpp b/cocos/physics/CCPhysicsContact.cpp
index e0233df958..649d0756f4 100644
--- a/cocos/physics/CCPhysicsContact.cpp
+++ b/cocos/physics/CCPhysicsContact.cpp
@@ -98,7 +98,7 @@ void PhysicsContact::generateContactData()
     cpArbiter* arb = static_cast<cpArbiter*>(_contactInfo);
     _contactData = new PhysicsContactData();
     _contactData->count = cpArbiterGetCount(arb);
-    for (int i=0; i<_contactData->count; ++i)
+    for (int i=0; i<_contactData->count && i<PhysicsContactData::POINT_MAX; ++i)
     {
         _contactData->points[i] = PhysicsHelper::cpv2point(cpArbiterGetPoint(arb, i));
     }
diff --git a/cocos/physics/CCPhysicsContact.h b/cocos/physics/CCPhysicsContact.h
index d9655754f0..24eb0f4c69 100644
--- a/cocos/physics/CCPhysicsContact.h
+++ b/cocos/physics/CCPhysicsContact.h
@@ -44,7 +44,8 @@ typedef Point Vect;
 
 typedef struct PhysicsContactData
 {
-    Point points[PHYSICS_CONTACT_POINT_MAX];
+    static const long POINT_MAX = 4;
+    Point points[POINT_MAX];
     int   count;
     Point normal;
     
diff --git a/cocos/physics/CMakeLists.txt b/cocos/physics/CMakeLists.txt
index 1586db2379..ef81f5ec6b 100644
--- a/cocos/physics/CMakeLists.txt
+++ b/cocos/physics/CMakeLists.txt
@@ -1,9 +1,4 @@
 set(COCOS_PHYSICS_SRC
-  ${CMAKE_SOURCE_DIR}/cocos/physics/box2d/CCPhysicsContactInfo_box2d.cpp
-  ${CMAKE_SOURCE_DIR}/cocos/physics/box2d/CCPhysicsJointInfo_box2d.cpp
-  ${CMAKE_SOURCE_DIR}/cocos/physics/box2d/CCPhysicsShapeInfo_box2d.cpp
-  ${CMAKE_SOURCE_DIR}/cocos/physics/box2d/CCPhysicsBodyInfo_box2d.cpp
-  ${CMAKE_SOURCE_DIR}/cocos/physics/box2d/CCPhysicsWorldInfo_box2d.cpp
   ${CMAKE_SOURCE_DIR}/cocos/physics/chipmunk/CCPhysicsContactInfo_chipmunk.cpp
   ${CMAKE_SOURCE_DIR}/cocos/physics/chipmunk/CCPhysicsJointInfo_chipmunk.cpp
   ${CMAKE_SOURCE_DIR}/cocos/physics/chipmunk/CCPhysicsShapeInfo_chipmunk.cpp