全局变量MODEENV移入全局变量GAME中，重构虚拟按键显示情况代码

parts/scenes/main.lua

@@ -6,7 +6,7 @@ function sceneInit.main()
 	}
 	BG.set("space")
 
-	MODEENV=NONE
+	GAME.modeEnv=NONE
 	--Create demo player
 	destroyPlayers()
 	GAME.frame=0

parts/scenes/play.lua

@@ -216,7 +216,7 @@ function Tmr.play(dt)
 	end
 
 	--Fresh royale target
-	if MODEENV.royaleMode and GAME.frame%120==0 then
+	if GAME.modeEnv.royaleMode and GAME.frame%120==0 then
 		freshMostDangerous()
 	end
 
@@ -308,7 +308,7 @@ function Pnt.play()
 	gc.setColor(1,1,1)
 	if SETTING.VKSwitch then drawVirtualkey()end
 
-	if MODEENV.royaleMode then
+	if GAME.modeEnv.royaleMode then
 		local P=PLAYERS[1]
 		gc.setLineWidth(5)
 		gc.setColor(.8,1,0,.2)