--- a/hedgewars/uUtils.pas	Mon Oct 23 17:29:56 2017 +0200
+++ b/hedgewars/uUtils.pas	Mon Oct 23 22:45:35 2017 +0200
@@ -57,6 +57,8 @@
 function  DxDy2AttackAngle(const _dY, _dX: hwFloat): LongInt;
 function  DxDy2AttackAnglef(const _dY, _dX: extended): LongInt;
 
+function PointDistance(const x1, x2, y1, y2: hwFloat; checkWrap: boolean): hwFloat;
+
 procedure SetLittle(var r: hwFloat);
 
 function  Str2PChar(const s: shortstring): PChar;
@@ -377,6 +379,37 @@
 DxDy2AttackAnglef:= trunc(arctan2(_dY, _dX) * (cMaxAngle/pi))
 end;
 
+function PointDistance(const x1, x2, y1, y2: hwFloat; checkWrap: boolean): hwFloat;
+var dist_center, dist_across: hwFloat;
+vx1, vx2, vy1, vy2: hwFloat;
+begin
+    // Sort values
+    vx1:= x1;
+    vx2:= x2;
+    vy1:= y1;
+    vy2:= y2;
+    if x1 < x2 then
+        begin
+        vx1:= x2;
+        vx2:= x1;
+        end;
+    if y1 < y2 then
+        begin
+        vy1:= y2;
+        vy2:= y1;
+        end;
+    if checkWrap and (WorldEdge = weWrap) then
+        begin
+        dist_center:= Distance(vx2-vx1, vy2-vy1);
+        dist_across:= Distance((vx2 - int2hwFloat(LeftX)) + (int2hwFloat(RightX) - vx1), vy2-vy1);
+        if (dist_across < dist_center) then
+            PointDistance:= dist_across
+        else
+            PointDistance:= dist_center;
+        end
+    else
+        PointDistance:= Distance(vx2-vx1, vy2-vy1);
+end;
 
 procedure SetLittle(var r: hwFloat);
 begin