Fix bugs in abstraction

Assets/Scripts/CoastlineAgent.cs

@@ -131,7 +131,7 @@ public class CoastlineAgent
 
     private bool PositionInBounds(Vector2 pos)
     {
-        return pos.x >= 0 || pos.y >= 0 || pos.x <= (coastlineGenerator.TerrainSize - 1) || pos.y <= (coastlineGenerator.TerrainSize - 1);
+        return !(pos.x < 0 || pos.y < 0 || pos.x > (coastlineGenerator.TerrainSize - 1) || pos.y > (coastlineGenerator.TerrainSize - 1));
     }
 
     private bool PositionOnEdge(Vector2 pos)
@@ -209,7 +209,7 @@ public class CoastlineAgent
         {
             Vector2Int newPos = new Vector2Int((int) (oldPos.x + prefDirection.x), (int) (oldPos.y + prefDirection.y));
 
-            if (!PositionInBounds(pos)) return pos;
+            if (!PositionInBounds(newPos)) return pos;
 
             if(!coastlineGenerator.landBitField[newPos.x, newPos.y])
             {