Remove unused Lua func entity_watchEntity()

Aquaria/Entity.cpp

@@ -209,7 +209,6 @@ Entity::Entity()
 	slowingToStopPathTimer = 0;
 	slowingToStopPath = 0;
 	followPos = 0;
-	watchingEntity = 0;
 	swimPath = false;
 	currentEntityTarget = 0;
 	deleteOnPathEnd = false;
@@ -534,11 +533,6 @@ bool Entity::hasTarget(int t)
 	return (targets[t]!=0);
 }
 
-void Entity::watchEntity(Entity *e)
-{
-	watchingEntity = e;
-}
-
 void Entity::destroy()
 {
 	if (stopSoundsOnDeath)
@@ -1589,23 +1583,6 @@ void Entity::onUpdate(float dt)
 	{
 		movementDetails(v);
 	}
-	else
-	{
-		if (watchingEntity)
-		{
-			Vector v = position - watchingEntity->position;
-			if (v.x < 0)
-			{
-				if (!isfh())
-					flipHorizontal();
-			}
-			else if (v.x > 0)
-			{
-				if (isfh())
-					flipHorizontal();
-			}
-		}
-	}
 
 	if (wasFollowing && !isFollowingPath())
 	{

Aquaria/Entity.h

@@ -219,7 +219,6 @@ public:
 	void doFriction(float dt, float len);
 
 	bool isNormalLayer() const;
-	void watchEntity(Entity *e);
 	void idle();
 	int followPos;
 	void slowToStopPath(float t);
@@ -393,7 +392,6 @@ protected:
 	float slowingToStopPathTimer, slowingToStopPath;
 
 	void movementDetails(Vector v);
-	Entity *watchingEntity;
 	virtual void onPathEnd();
 	InterpolatedVector multColor;
 	EntityType entityType;

Aquaria/ScriptInterface.cpp

@@ -5917,20 +5917,6 @@ luaFunc(entity_getDistanceToPoint)
 	luaReturnNum(dist);
 }
 
-luaFunc(entity_watchEntity)
-{
-	Entity *e = entity(L);
-	Entity *e2 = 0;
-	if (lua_touserdata(L, 2) != NULL)
-		e2 = entity(L, 2);
-
-	if (e)
-	{
-		e->watchEntity(e2);
-	}
-	luaReturnNil();
-}
-
 luaFunc(setNaijaHeadTexture)
 {
 	Avatar *a = dsq->game->avatar;
@@ -10757,8 +10743,6 @@ static const struct {
 	luaRegister(setSceneColor2),
 	luaRegister(getSceneColor2),
 
-	luaRegister(entity_watchEntity),
-
 	luaRegister(entity_isEntityInRange),
 	luaRegister(entity_isPositionInRange),
 

files/scripts/compat/internal/oldfunctions.lua

@@ -23,6 +23,7 @@ local WARN_FUNCTIONS =
     setupConversationEntity = true,
     entity_grabTarget = true,
     entity_releaseTarget = true,
+    entity_watchEntity = true,
 }
 
 -- These returned something important, so here we just return a failure/dummy value