升级SCR模块，整理大量坐标系变换代码

parts/scenes/depause.lua

@@ -26,10 +26,9 @@ function scene.draw()
 
 	--Gray screen cover
 	gc.setColor(.15,.15,.15,timer*1.26)
-	gc.push('transform')
-		gc.origin()
-		gc.rectangle('fill',0,0,SCR.w,SCR.h)
-	gc.pop()
+	gc.replaceTransform(SCR.origin)
+	gc.rectangle('fill',0,0,SCR.w,SCR.h)
+	gc.replaceTransform(SCR.xOy)
 
 	--Pie counter
 	gc.setColor(1,1,1,4*(1-timer))

parts/scenes/intro.lua

@@ -53,13 +53,13 @@ function scene.draw()
 		local t=t1-i*15
 		if t>0 then
 			gc.push('transform')
-				gc.setColor(1,1,1,min(t*.025,1))
-				titleTransform[animeType[i]](t,i)
-				local dt=(t1+62-5*i)%300
-				if dt<20 then
-					gc.translate(0,math.abs(10-dt)-10)
-				end
-				gc.polygon('line',L[i])
+			gc.setColor(1,1,1,min(t*.025,1))
+			titleTransform[animeType[i]](t,i)
+			local dt=(t1+62-5*i)%300
+			if dt<20 then
+				gc.translate(0,math.abs(10-dt)-10)
+			end
+			gc.polygon('line',L[i])
 			gc.pop()
 		end
 	end

parts/scenes/load.lua

@@ -373,11 +373,10 @@ function scene.draw()
 
 	--Black screen
 	if blackTime>0 or openTime>3 then
-		gc.push('transform')
-		gc.origin()
+		gc.replaceTransform(SCR.origin)
 		gc.setColor(0,0,0,blackTime+(openTime-3)*4)
 		gc.rectangle('fill',0,0,SCR.w,SCR.h)
-		gc.pop()
+		gc.replaceTransform(SCR.xOy)
 	end
 	gc.pop()
 end

parts/scenes/pause.lua

@@ -174,10 +174,9 @@ function scene.draw()
 	local _=T
 	if GAME.result then _=_*.7 end
 	gc.setColor(.15,.15,.15,_)
-	gc.push('transform')
-		gc.origin()
-		gc.rectangle('fill',0,0,SCR.w,SCR.h)
-	gc.pop()
+	gc.replaceTransform(SCR.origin)
+	gc.rectangle('fill',0,0,SCR.w,SCR.h)
+	gc.replaceTransform(SCR.xOy)
 
 	--Pause Info
 	setFont(25)

parts/scenes/staff.lua

@@ -77,8 +77,7 @@ function scene.update(dt)
 end
 
 function scene.draw()
-	gc.push('transform')
-	gc.origin()
+	gc.replaceTransform(SCR.origin)
 	for i=1,#names do
 		local N=names[i]
 		if type(N.color)=='table'then
@@ -88,7 +87,7 @@ function scene.draw()
 		end
 		gc.draw(N.text,N.x,N.y)
 	end
-	gc.pop()
+	gc.replaceTransform(SCR.xOy)
 
 	gc.setColor(1,1,1)
 	local T=40*math.min(time,45)