Add saw-tooth move and multiple moves per level

1 files changed, 9 insertions, 2 deletions

diff --git a/src/Update/CloudUpdate.elm b/src/Update/CloudUpdate.elm
index 559acc9..d8ccf36 100644
--- a/src/Update/CloudUpdate.elm
+++ b/src/Update/CloudUpdate.elm
@@ -3,6 +3,7 @@ module Update.CloudUpdate exposing
   )
 
 import List
+import List.Nonempty as NE exposing (Nonempty(..), (:::))
 import Random.Pcg as Random exposing (Seed, Generator)
 
 import Model.Vec2 exposing (..)
@@ -58,17 +59,23 @@ getNewPoint : Float -> Vec2 -> Seed -> Int -> (Point, Seed)
 getNewPoint elapsedTime boardSize seed currentScore =
   let (initPos, seed') = pointInitPos boardSize seed
       (initDest, seed'') = pointDestination boardSize seed'
+      (randomMove, seed''') = Random.step (nonemptySample << .moves <| currentLevel currentScore) seed''
   in  ( { initTime = elapsedTime
         , initPos = initPos
         , initDest = initDest
         , move = \initTime initPos initDest elapsedTime ->
             let delta = elapsedTime - initTime
-                move = (currentLevel currentScore).move initPos initDest delta
+                move = randomMove initPos initDest delta
             in  initPos `add` move
         }
-      , seed''
+      , seed'''
       )
 
+nonemptySample : Nonempty a -> Random.Generator a
+nonemptySample nonempty =
+  Random.int 0 (NE.length nonempty - 1)
+    |> Random.map (\i -> NE.get i nonempty)
+
 pointInitPos : Vec2 -> Seed -> (Vec2, Seed)
 pointInitPos boardSize seed =
   let (rand, seed') = Random.step (Random.float 0 1) seed