把几个pi常量换回数字（性能原因）

parts/scenes/app_reflect.lua

@@ -115,7 +115,7 @@ function scene.draw()
         end
     elseif state==1 then
         gc.setColor(.2,.7,.4,math.min((60-ct)/10,ct/10)*.8)
-        gc.arc('fill',640,360,260,math.pi/2,math.pi/2+(ct/60)*MATH.tau)
+        gc.arc('fill',640,360,260,-1.5708,-1.5708+(ct/60)*6.2832)
     elseif state==2 and ct<5 then
         gc.setColor(1,ct>2 and 1 or 0,0)
         gc.rectangle('fill',640-100,(up and 180 or 540)-100,200,200,10)

parts/scenes/mod.lua

@@ -135,7 +135,7 @@ function scene.draw()
 
             if M.list then
                 GC.setColor(1,1,1,t*6)
-                GC.arc('line','open',0,0,rad+6,0,(M.sel/#M.list)*MATH.tau)
+                GC.arc('line','open',0,0,rad+6,0,(M.sel/#M.list)*6.2832)
             end
         GC.pop()
     end

parts/scenes/setting_game.lua

@@ -18,9 +18,9 @@ function scene.draw()
     local b=math.floor(t*2)%16+1
     gc.setShader(SHADER.blockSatur)
     gc.setColor(1,1,1)
-    mDraw(SKIN.lib[SETTING.skinSet][b],0,0,t%MATH.tau,2)
+    mDraw(SKIN.lib[SETTING.skinSet][b],0,0,t%6.2832,2)
     gc.setColor(1,1,1,t*2%1)
-    mDraw(SKIN.lib[SETTING.skinSet][b%16+1],0,0,t%MATH.tau,2)
+    mDraw(SKIN.lib[SETTING.skinSet][b%16+1],0,0,t%6.2832,2)
     gc.setShader()
 
     -- Draw center