diff -r 6b2fb9f0054a -r 98dbb9b985e5 share/hedgewars/Data/Scripts/Utils.lua
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/share/hedgewars/Data/Scripts/Utils.lua	Tue Jan 25 20:32:58 2011 +0100
@@ -0,0 +1,22 @@
+-- Library for miscellaneous utilitiy functions
+
+-- Check if a gear is inside a box
+function gearIsInBox(gear, x, y, w, h)
+    gx, gy = GetGearPosition(gear)
+    if gx >= x and gy >= y and gx <= x + w and gy <= y + h then
+        return true
+    end
+    return false
+end
+
+-- Check if a gear is inside a circle
+function gearIsInCircle(gear, x, y, r, useRadius)
+    gx, gy = GetGearPosition(gear)
+    if useRadius then
+        r = r + GetGearRadius(gear)
+    end
+    if r ^ 2 >= (x - gx) ^ 2 + (y - gy) ^ 2 then
+        return true
+    end
+    return false
+end