diff --git a/Zframework/gcExtend.lua b/Zframework/gcExtend.lua
index 13cb0565..9e0b4259 100644
--- a/Zframework/gcExtend.lua
+++ b/Zframework/gcExtend.lua
@@ -1,12 +1,12 @@
 local gc=love.graphics
 local setColor,printf,draw=gc.setColor,gc.printf,gc.draw
 local GC={}
-function GC.mStr(obj,x,y)printf(obj,x-626,y,1252,'center')end
-function GC.simpX(obj,x,y)draw(obj,x-obj:getWidth()*.5,y)end
-function GC.simpY(obj,x,y)draw(obj,x,y-obj:getHeight()*.5)end
-function GC.X(obj,x,y,a,k)draw(obj,x,y,a,k,nil,obj:getWidth()*.5,0)end
-function GC.Y(obj,x,y,a,k)draw(obj,x,y,a,k,nil,0,obj:getHeight()*.5)end
-function GC.draw(obj,x,y,a,k)draw(obj,x,y,a,k,nil,obj:getWidth()*.5,obj:getHeight()*.5)end
+function GC.mStr(obj,x,y)printf(obj,x-626,y,1252,'center')end--Printf a string with 'center'
+function GC.simpX(obj,x,y)draw(obj,x-obj:getWidth()*.5,y)end--Simply draw an obj with x=obj:getWidth()/2
+function GC.simpY(obj,x,y)draw(obj,x,y-obj:getHeight()*.5)end--Simply draw an obj with y=obj:getWidth()/2
+function GC.X(obj,x,y,a,k)draw(obj,x,y,a,k,nil,obj:getWidth()*.5,0)end--Draw an obj with x=obj:getWidth()/2
+function GC.Y(obj,x,y,a,k)draw(obj,x,y,a,k,nil,0,obj:getHeight()*.5)end--Draw an obj with y=obj:getWidth()/2
+function GC.draw(obj,x,y,a,k)draw(obj,x,y,a,k,nil,obj:getWidth()*.5,obj:getHeight()*.5)end--Draw an obj with both middle X & Y
 function GC.outDraw(obj,div,x,y,a,k)
     local w,h=obj:getWidth()*.5,obj:getHeight()*.5
     draw(obj,x-div,y-div,a,k,nil,w,h)