small README-fix by apillet. Bugfix in gfx draw_circle.

README.rdoc

@@ -602,7 +602,7 @@ Chingu solves this problem behind the scenes for the most common assets. The 2 l
   Image["player.png"]
 
 You also have:
-  Sound["shot.png"]
+  Sound["shot.wav"]
   Song["intromusic.ogg"]
 
 The default settings are like this:
@@ -696,7 +696,7 @@ As far as possible, use correct rubyfied english game_objects, not gameobjects.
 
 == CREDITS:
 * Jacius of Rubygame (For doing cool stuff that's well documented as re-usable). So far rect.rb and named_resource.rb is straight outta Rubygame.
-* Banister (of texplay fame) for general feedeback, ruby-internals help and building the trait-system
+* Banister (of texplay fame) for general feedeback and help with ruby-internals and building the trait-system
 * Jduff for input / commits
 * Jlnr,Philymore,Shawn24,JamesKilton for constructive feedback/discussions
 * Ariel Pillet for codesuggestions and cleanups

lib/chingu/helpers/gfx.rb

@@ -115,7 +115,7 @@ def draw_rect(rect, color, zorder)
     def draw_circle(cx,cy,r,color)      
       0.step(360, CIRCLE_STEP) do |a1|
         a2 = a1 + CIRCLE_STEP
-        $window.draw_line cx + offset_x(a1, r), cy + offset_y(a1, r), color, cx + offset_x(a2, r), cy + offset_y(a2, r), color, 9999
+        $window.draw_line cx + Gosu.offset_x(a1, r), cy + Gosu.offset_y(a1, r), color, cx + Gosu.offset_x(a2, r), cy + Gosu.offset_y(a2, r), color, 9999
       end
     end