Entities/Object: Add some Position const& overloads to distance/angle methods for usability.

src/server/game/Entities/Object/Object.cpp

@@ -1559,24 +1559,21 @@ bool WorldObject::IsInRange3d(float x, float y, float z, float minRange, float m
     return distsq < maxdist * maxdist;
 }
 
-bool WorldObject::IsInBetween(const WorldObject* obj1, const WorldObject* obj2, float size) const
+bool WorldObject::IsInBetween(Position const& pos1, Position const& pos2, float size) const
 {
-    if (!obj1 || !obj2)
-        return false;
-
-    float dist = GetExactDist2d(obj1->GetPositionX(), obj1->GetPositionY());
+    float dist = GetExactDist2d(pos1);
 
     // not using sqrt() for performance
-    if ((dist * dist) >= obj1->GetExactDist2dSq(obj2->GetPositionX(), obj2->GetPositionY()))
+    if ((dist * dist) >= pos1.GetExactDist2dSq(pos2))
         return false;
 
     if (!size)
         size = GetObjectSize() / 2;
 
-    float angle = obj1->GetAngle(obj2);
+    float angle = pos1.GetAngle(pos2);
 
     // not using sqrt() for performance
-    return (size * size) >= GetExactDist2dSq(obj1->GetPositionX() + std::cos(angle) * dist, obj1->GetPositionY() + std::sin(angle) * dist);
+    return (size * size) >= GetExactDist2dSq(pos1.GetPositionX() + std::cos(angle) * dist, pos1.GetPositionY() + std::sin(angle) * dist);
 }
 
 bool WorldObject::isInFront(WorldObject const* target,  float arc) const