Fix bullet randomness (from eg bangCone)

ghcidOutput

@@ -1 +1 @@
-All good (617 modules, at 23:34:46)
+All good (617 modules, at 09:15:30)

src/Dodge/Bullet.hs

@@ -64,7 +64,9 @@ shootBullet itm cr w = fromMaybe (error "cannot find bullet ammo when expected t
     leftitms <- itm ^? ldtLeft
     mag <- lookup (AmmoInLink 0 atype) leftitms
     thebullet <- mag ^? ldtValue . itUse . amagParams . ampBullet
-    return $ w & cWorld . lWorld . instantBullets
+    return $ w 
+        & randGen .~ g' 
+        & cWorld . lWorld . instantBullets
         .:~ ( thebullet
                 & buPos .~ _crPos cr
                 & buTrajectory %~ settrajectory
@@ -75,12 +77,12 @@ shootBullet itm cr w = fromMaybe (error "cannot find bullet ammo when expected t
     it = itm ^. ldtValue
     sp = _crPos cr +.+ (muzlength ^?! _head . _x) *.* unitVectorAtAngle dir
     dir = _crDir cr
-    drag = case _rifling (_heldParams $ _itUse it) of
+    (drag,g) = case _rifling (_heldParams $ _itUse it) of
-        ConstFloat x -> x
+        ConstFloat x -> (x, _randGen w)
-        UniRandFloat x y -> fst . randomR (x,y) $ _randGen w
+        UniRandFloat x y -> randomR (x,y) $ _randGen w
-    muzvel = case _muzVel $ _heldParams $ _itUse it of
+    (muzvel,g') = case _muzVel $ _heldParams $ _itUse it of
-        ConstFloat x -> x
+        ConstFloat x -> (x,g)
-        UniRandFloat x y -> fst . randomR (x,y) $ _randGen w
+        UniRandFloat x y -> randomR (x,y) $ _randGen w
     muzlength = aimingMuzzlePos cr it
     settrajectory traj = case traj of
         BasicBulletTrajectory -> BasicBulletTrajectory

src/Dodge/HeldUse.hs

@@ -478,14 +478,14 @@ makeBullet thebullet itm cr mz w =
             )
   where
     bulpos = _crPos cr + rotateV (_crDir cr) (_mzPos mz + aimingWeaponZeroPos cr itm + V2 0 offset)
-    (a,g) = randomR (-inacc,inacc) $ _randGen w
+    (a,g'') = randomR (-inacc,inacc) $ _randGen w
     inacc = _mzInaccuracy mz
-    drag = case _rifling (_heldParams $ _itUse itm) of
+    (drag,g') = case _rifling (_heldParams $ _itUse itm) of
-        ConstFloat x -> x
+        ConstFloat x -> (x,g'')
-        UniRandFloat x y -> fst . randomR (x,y) $ _randGen w
+        UniRandFloat x y -> randomR (x,y) g''
-    muzvel = case _muzVel $ _heldParams $ _itUse itm of
+    (muzvel,g) = case _muzVel $ _heldParams $ _itUse itm of
-        ConstFloat x -> x
+        ConstFloat x -> (x,g')
-        UniRandFloat x y -> fst . randomR (x,y) $ _randGen w
+        UniRandFloat x y -> randomR (x,y) g'
     dir = _crDir cr + _mzRot mz + a
     offset = case itm ^? itUse . heldParams . randomOffset of
         Just x | x /= 0 -> fst . randomR (-x,x) $ _randGen w