修复刚安装就用简洁模式玩会报错（修改成绩比较逻辑）

parts/player/player.lua

@@ -1610,9 +1610,9 @@ local function gameOver()--Save record
 				GAME.rank=R
 			end
 			if scoreValid()and M.score then
-				local r=RANKS[M.name]--Old rank
+				if RANKS[M.name]then--Old rank exist
 					local needSave
-				if R>r then
+					if R>RANKS[M.name]then
 						RANKS[M.name]=R
 						needSave=true
 					end
@@ -1631,6 +1631,7 @@ local function gameOver()--Save record
 					if needSave then
 						FILE.save(RANKS,"conf/unlock","q")
 					end
+				end
 				local D=M.score(P)
 				local L=M.records
 				local p=#L--Rank-1