diff --git a/Engine/source/afx/forces/afxForceSet.cpp b/Engine/source/afx/forces/afxForceSet.cpp
index 49658022f..0d650e3b4 100644
--- a/Engine/source/afx/forces/afxForceSet.cpp
+++ b/Engine/source/afx/forces/afxForceSet.cpp
@@ -32,21 +32,21 @@
 
 afxForceSet::afxForceSet(const char* name)
 {
-  this->name = (name) ? StringTable->insert(name) : ST_NULLSTRING;
-  update_dt = 10.0f; // seems like an ok maximum, force-xmods will probably lower it.
-  elapsed_dt = 0.0f;
-  elapsed_ms = 0;
-  num_updates = 0;
-  last_num_updates = 0;
+  mName = (name) ? StringTable->insert(name) : ST_NULLSTRING;
+  mUpdate_dt = 10.0f; // seems like an ok maximum, force-xmods will probably lower it.
+  mElapsed_dt = 0.0f;
+  mElapsed_ms = 0;
+  mNum_updates = 0;
+  mLast_num_updates = 0;
 }
 
 void afxForceSet::remove(afxForce* force)
 {
-  for (S32 i = 0; i < force_v.size(); i++)
+  for (S32 i = 0; i < mForce_v.size(); i++)
   {
-    if (force_v[i] == force)
+    if (mForce_v[i] == force)
     {
-      force_v.erase(i);
+      mForce_v.erase(i);
       return;
     }
   }
@@ -56,23 +56,23 @@ S32 afxForceSet::updateDT(F32 dt)
 {
   U32 now = Platform::getVirtualMilliseconds();
 
-  if (elapsed_ms == now) 
-    return last_num_updates;
+  if (mElapsed_ms == now) 
+    return mLast_num_updates;
 
-  elapsed_ms = now;
-  elapsed_dt += dt;
+  mElapsed_ms = now;
+  mElapsed_dt += dt;
 
-  if (elapsed_dt < update_dt) 
+  if (mElapsed_dt < mUpdate_dt) 
   {
-    last_num_updates = 0;
+    mLast_num_updates = 0;
     return 0;
   }
 
-  num_updates = mFloor(elapsed_dt/update_dt);
-  elapsed_dt -= update_dt*num_updates;
-  last_num_updates = num_updates;
+  mNum_updates = mFloor(mElapsed_dt/mUpdate_dt);
+  mElapsed_dt -= mUpdate_dt*mNum_updates;
+  mLast_num_updates = mNum_updates;
 
-  return num_updates;
+  return mNum_updates;
 }
 
 //~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~~//
diff --git a/Engine/source/afx/forces/afxForceSet.h b/Engine/source/afx/forces/afxForceSet.h
index 8c42a2dd3..7c0cabc54 100644
--- a/Engine/source/afx/forces/afxForceSet.h
+++ b/Engine/source/afx/forces/afxForceSet.h
@@ -32,28 +32,28 @@ class afxForce;
 
 class afxForceSet
 {
-  Vector<afxForce*> force_v;
-  StringTableEntry  name;
+  Vector<afxForce*> mForce_v;
+  StringTableEntry  mName;
 
   // tick-based updating
-  F32           update_dt;  // constant update interval, in seconds
-  F32           elapsed_dt; // runtime elapsed delta, in seconds
-  U32           elapsed_ms;
-  S32           num_updates;
-  S32           last_num_updates;
+  F32           mUpdate_dt;  // constant update interval, in seconds
+  F32           mElapsed_dt; // runtime elapsed delta, in seconds
+  U32           mElapsed_ms;
+  S32           mNum_updates;
+  S32           mLast_num_updates;
 
 public:
   /*C*/         afxForceSet(const char* name=0);
 
-  void          add(afxForce* force) { force_v.push_back(force); }
+  void          add(afxForce* force) { mForce_v.push_back(force); }
   void          remove(afxForce* force);
 
-  S32           count() { return force_v.size(); }
-  afxForce*     getForce(S32 idx) { return force_v[idx]; }
-  const char*   getName() const { return name; }
+  S32           count() { return mForce_v.size(); }
+  afxForce*     getForce(S32 idx) { return mForce_v[idx]; }
+  const char*   getName() const { return mName; }
 
-  void          setUpdateDT(F32 update_dt) { this->update_dt = update_dt; }
-  F32           getUpdateDT() { return update_dt; }
+  void          setUpdateDT(F32 update_dt) { mUpdate_dt = update_dt; }
+  F32           getUpdateDT() { return mUpdate_dt; }
 
   S32           updateDT(F32 dt);
 };