feat(Core/CreatureAI): improve npc position during the combat (#3369)

+ tangent equation to find correct angle and distance when moving

+ implemented proper backward

* Improved performance + random angle margin

* chore: add tollerance calculation in instance

* improved LOS checks with movements

* implemented collisions using raycast (imported by TC)

+ improved collision detection for CanReachPositionAndGetCoords

+ improved collision check

+ set correct flags for the backward movement

+ first implementation of slope angle (to improve)

Co-authored-by: Yehonal <yehonal.azeroth@gmail.com>

src/common/Collision/Management/VMapManager2.cpp

@@ -29,6 +29,7 @@
 #include "DBCStores.h"
 #include "Log.h"
 #include "VMapDefinitions.h"
+#include "GridDefines.h"
 
 using G3D::Vector3;
 
@@ -54,7 +55,7 @@ namespace VMAP
     Vector3 VMapManager2::convertPositionToInternalRep(float x, float y, float z) const
     {
         Vector3 pos;
-        const float mid = 0.5f * 64.0f * 533.33333333f;
+        const float mid = 0.5f * MAX_NUMBER_OF_GRIDS * SIZE_OF_GRIDS;
         pos.x = mid - x;
         pos.y = mid - y;
         pos.z = z;
@@ -308,4 +309,4 @@ namespace VMAP
         return StaticMapTree::CanLoadMap(std::string(basePath), mapId, x, y);
     }
 
-} // namespace VMAP
+} // namespace VMAP