代码规范：把所有的tab换成空格

parts/backgrounds/blackhole.lua

@@ -12,55 +12,55 @@ local back={}
 local t
 local squares
 function back.init()
-	t=26
-	squares={}
+    t=26
+    squares={}
 end
 function back.update()
-	t=t-1
-	if t==0 then
-		local S={
-			ang=6.2832*rnd(),
-			d=SCR.rad*1.05/2,
-			rotate=6.2832*rnd(),
-			va=.05-rnd()*.1,
-			size=SCR.rad*(2+rnd()*3)/100,
-			texture=SKIN.lib[SETTING.skinSet][rnd(16)],
-		}
-		ins(squares,S)
-		t=rnd(6,12)
-	end
-	for i=#squares,1,-1 do
-		local S=squares[i]
-		S.d=S.d-SCR.rad/(S.d+60)
-		if S.d>0 then
-			S.ang=S.ang+.008
-			S.rotate=S.rotate+S.va
-		else
-			rem(squares,i)
-		end
-	end
+    t=t-1
+    if t==0 then
+        local S={
+            ang=6.2832*rnd(),
+            d=SCR.rad*1.05/2,
+            rotate=6.2832*rnd(),
+            va=.05-rnd()*.1,
+            size=SCR.rad*(2+rnd()*3)/100,
+            texture=SKIN.lib[SETTING.skinSet][rnd(16)],
+        }
+        ins(squares,S)
+        t=rnd(6,12)
+    end
+    for i=#squares,1,-1 do
+        local S=squares[i]
+        S.d=S.d-SCR.rad/(S.d+60)
+        if S.d>0 then
+            S.ang=S.ang+.008
+            S.rotate=S.rotate+S.va
+        else
+            rem(squares,i)
+        end
+    end
 end
 function back.draw()
-	gc_clear(.1,.1,.1)
-	gc_replaceTransform(SCR.xOy_m)
+    gc_clear(.1,.1,.1)
+    gc_replaceTransform(SCR.xOy_m)
 
-	--Squares
-	gc_setColor(1,1,1,.2)
-	for i=1,#squares do
-		local S=squares[i]
-		gc_draw(S.texture,S.d*cos(S.ang),S.d*sin(S.ang),S.rotate,S.size*.026,nil,15,15)
-	end
+    --Squares
+    gc_setColor(1,1,1,.2)
+    for i=1,#squares do
+        local S=squares[i]
+        gc_draw(S.texture,S.d*cos(S.ang),S.d*sin(S.ang),S.rotate,S.size*.026,nil,15,15)
+    end
 
-	--Blackhole
-	gc_setColor(.07,.07,.07)
-	gc_circle('fill',0,0,157)
-	gc_setLineWidth(6)
-	for i=0,15 do
-		gc_setColor(.07,.07,.07,1-i*.0666)
-		gc_circle('line',0,0,160+6*i)
-	end
+    --Blackhole
+    gc_setColor(.07,.07,.07)
+    gc_circle('fill',0,0,157)
+    gc_setLineWidth(6)
+    for i=0,15 do
+        gc_setColor(.07,.07,.07,1-i*.0666)
+        gc_circle('line',0,0,160+6*i)
+    end
 end
 function back.discard()
-	squares=nil
+    squares=nil
 end
 return back