代码规范：所有文件以空行结尾

parts/backgrounds/aura.lua

@@ -22,4 +22,4 @@ function back.draw()
     gc.rectangle('fill',0,0,SCR.w,SCR.h)
     gc.setShader()
 end
-return back
+return back

parts/backgrounds/bg1.lua

@@ -21,4 +21,4 @@ function back.draw()
     gc.rectangle('fill',0,0,SCR.w,SCR.h)
     gc.setShader()
 end
-return back
+return back

parts/backgrounds/bg2.lua

@@ -21,4 +21,4 @@ function back.draw()
     gc.rectangle('fill',0,0,SCR.w,SCR.h)
     gc.setShader()
 end
-return back
+return back

parts/backgrounds/blackhole.lua

@@ -63,4 +63,4 @@ end
 function back.discard()
     squares=nil
 end
-return back
+return back

parts/backgrounds/blockfall.lua

@@ -52,4 +52,4 @@ end
 function back.discard()
     mino=nil
 end
-return back
+return back

parts/backgrounds/blockrain.lua

@@ -51,4 +51,4 @@ end
 function back.discard()
     mino=nil
 end
-return back
+return back

parts/backgrounds/blockspace.lua

@@ -54,4 +54,4 @@ end
 function back.discard()
     mino=nil
 end
-return back
+return back

parts/backgrounds/cubes.lua

@@ -78,4 +78,4 @@ end
 function back.discard()
     squares=nil
 end
-return back
+return back

parts/backgrounds/fan.lua

@@ -76,4 +76,4 @@ end
 function back.discard()
     petal=nil
 end
-return back
+return back

parts/backgrounds/firework.lua

@@ -95,4 +95,4 @@ end
 function back.discard()
     firework=nil
 end
-return back
+return back

parts/backgrounds/flink.lua

@@ -15,4 +15,4 @@ function back.draw()
     else gc.clear(0,0,0)
     end
 end
-return back
+return back

parts/backgrounds/glow.lua

@@ -14,4 +14,4 @@ function back.draw()
     local t1=(sin(t*.5)+sin(t*.7)+sin(t*.9+1)+sin(t*1.5)+sin(t*2+10))*.08
     gc.clear(t1,t1,t1)
 end
-return back
+return back

parts/backgrounds/lanterns.lua

@@ -45,4 +45,4 @@ function back.draw()
         mDraw(img[int(L.phase*6)+1],L.x,L.y,nil,L.size)
     end
 end
-return back
+return back

parts/backgrounds/league.lua

@@ -33,4 +33,4 @@ function back.draw()
     gc.draw(upCover,0,0,0,W,H*.3/64)
     gc.draw(downCover,0,H*.7,0,W,H*.3/64)
 end
-return back
+return back

parts/backgrounds/lightning.lua

@@ -15,4 +15,4 @@ function back.draw()
     else gc.clear(0,0,0)
     end
 end
-return back
+return back

parts/backgrounds/lightning2.lua

@@ -23,4 +23,4 @@ function back.draw()
     gc.setColor(_[1],_[2],_[3],.12)
     gc.draw(TEXTURE.miniBlock[R],SCR.cx,SCR.cy,t%3.1416*6,400*SCR.k,nil,scs[R][0][2]+.5,#blocks[R][0]-scs[R][0][1]-.5)
 end
-return back
+return back

parts/backgrounds/matrix.lua

@@ -28,4 +28,4 @@ function back.draw()
         end
     end
 end
-return back
+return back

parts/backgrounds/rainbow.lua

@@ -22,4 +22,4 @@ function back.draw()
     gc.rectangle('fill',0,0,SCR.w,SCR.h)
     gc.setShader()
 end
-return back
+return back

parts/backgrounds/rainbow2.lua

@@ -22,4 +22,4 @@ function back.draw()
     gc.rectangle('fill',0,0,SCR.w,SCR.h)
     gc.setShader()
 end
-return back
+return back

parts/backgrounds/rgb.lua

@@ -17,4 +17,4 @@ function back.draw()
         sin(t*1.9)*.06+.08
     )
 end
-return back
+return back

parts/backgrounds/snow.lua

@@ -48,4 +48,4 @@ end
 function back.discard()
     snow=nil
 end
-return back
+return back

parts/backgrounds/space.lua

@@ -43,4 +43,4 @@ end
 function back.discard()
     stars=nil
 end
-return back
+return back

parts/backgrounds/tunnel.lua

@@ -40,4 +40,4 @@ end
 function back.discard()
     ring=nil
 end
-return back
+return back

parts/backgrounds/welcome.lua

@@ -36,4 +36,4 @@ function back.draw()
     gc.draw(txt,-883*.5+3*sin(t*.7283),-110*.5+3*sin(t*.7626))
     gc.pop()
 end
-return back
+return back

parts/backgrounds/wing.lua

@@ -70,4 +70,4 @@ end
 function back.discard()
     bar,crystal=nil
 end
-return back
+return back