Add Big Mode (#515)

I even halved the gravity :)

parts/eventsets/big_n.lua

@@ -0,0 +1,32 @@
+local dropSpeed={100,80,60,48,36,28,20,16,12,10,8,6,4,2,2,1,1,.5,.5}
+
+return
+{
+    drop=120,
+    wait=8,
+    fall=20,
+    mesDisp=function(P)
+        PLY.draw.drawProgress(P.stat.row,P.modeData.target)
+        PLY.draw.drawTargetLine(P,200-P.stat.row)
+    end,
+    task=function(P)
+		local F=P.field
+        for i=1,24 do
+            F[i]=LINE.new(20)
+            P.visTime[i]=LINE.new(20)
+            for x=3,7 do F[i][x]=0 end
+        end
+        P.modeData.target=10
+    end,
+    hook_drop=function(P)
+        if P.stat.row>=P.modeData.target then
+            if P.modeData.target==200 then
+                P:win('finish')
+            else
+                P.gameEnv.drop=dropSpeed[P.modeData.target/10]
+                P.modeData.target=P.modeData.target+10
+                SFX.play('reach')
+            end
+        end
+    end
+}