Use luaL_check/optinteger instead of luaL_check/optnumber when getting integer arguments to functions. Resolves issue #1251.

--HG--
branch : minor

src/modules/physics/box2d/Physics.h

@@ -292,13 +292,13 @@ public:
 	 * Sets the number of pixels in one meter.
 	 * @param scale The number of pixels in one meter. (1m ~= 3.3ft).
 	 **/
-	static void setMeter(int scale);
+	static void setMeter(float scale);
 
 	/**
 	 * Gets the number of pixels in one meter.
 	 * @return The number of pixels in one meter. (1m ~= 3.3ft).
 	 **/
-	static int getMeter();
+	static float getMeter();
 
 	/**
 	 * Scales a value down according to the current meter in pixels.
@@ -359,7 +359,7 @@ public:
 private:
 
 	// The length of one meter in pixels.
-	static int meter;
+	static float meter;
 }; // Physics
 
 } // box2d