# HG changeset patch
# User Quintillus <quintillus@warpmail.net>
# Date 1712245555 14400
#      Thu Apr 04 11:45:55 2024 -0400
# Node ID d96f15c954c82532c7d899207c94f4670598b921
# Parent  cfa4f571e14bab36c51e53da4f6f4c2dd95718a7
Add a utility method to grab a tile based on its coordinates.

Kind of surprised one of these didn't already exist.

diff --git a/src/main/java/com/civfanatics/civ3/biqFile/IO.java b/src/main/java/com/civfanatics/civ3/biqFile/IO.java
--- a/src/main/java/com/civfanatics/civ3/biqFile/IO.java
+++ b/src/main/java/com/civfanatics/civ3/biqFile/IO.java
@@ -6655,6 +6655,21 @@
     }
     
     /**
+     * Convenience method that returns the tile at a given index.  Wraps around
+     * the world if need be.
+     * @param xPos The xlocation
+     * @param yPos The ylocation
+     * @return The tile at that location, or null if the location is not valid
+     */
+    public TILE getTileAt(int xPos, int yPos) {
+        int tileIndex = calculateTileIndex(xPos, yPos);
+        if (tileIndex == -1) {
+            return null;
+        }
+        return tile.get(tileIndex);
+    }
+    
+    /**
      * Returns the 8 surrounding tiles.
      * If some of them are off the map, it returns fewer.
      * May be expanded to the 21 tiles cross at one point.