Hack together correct positioning of grenades from attached items

2025-06-28 22:32:12 +01:00
parent 6af2a8cc36
commit d88aed10c7
12 changed files with 225 additions and 178 deletions
@@ -25,7 +25,7 @@ useItem invid pt w = fmap (worldEventFlags . at InventoryChange ?~ ()) $ do
    useItemLoc cr usedloc pt w

 useItemLoc :: Creature ->
-    LocationLDT ItemLink CItem ->
+    LocationLDT ItemLink OItem ->
    PressType ->
    World ->
    Maybe World
@@ -33,13 +33,13 @@ useItemLoc cr loc pt w
    | HeldPlatformSF <- sf
      , fromMaybe False $ loc ^? locLDT . ldtValue . _1 . itLocation . ilIsRoot
      , Aiming {} <- cr ^. crStance . posture =
-        return $ heldEffect pt (bimap id (^. _1) ldt) cr w
+        return $ heldEffect pt (bimap id id ldt) cr w
    | GadgetPlatformSF <- sf =
        return $ gadgetEffect pt loc cr w
    | UnderBarrelPlatformSF <- sf
      , fromMaybe False $ loc ^? locLDT . ldtValue . _1 . itLocation . ilIsAttached
      , Aiming {} <- cr ^. crStance . posture =
-        return $ heldEffect pt (bimap id (^. _1) ldt) cr w
+        return $ heldEffect pt (bimap id id ldt) cr w
    | RemoteDetonatorSF <- sf
      , pt == InitialPress =
        return $ activateDetonator ldt w
@@ -62,7 +62,7 @@ useItemLoc cr loc pt w
    ldt = loc ^. locLDT
    itm = ldt ^. ldtValue . _1

-useLocation :: LocationLDT ItemLink CItem -> LocationLDT ItemLink CItem
+useLocation :: LocationLDT ItemLink OItem -> LocationLDT ItemLink OItem
 useLocation loc
    | isJust $ loc ^? locLDT . ldtValue . _1 . itType . ibtEquip = loc
    | isJust $ loc ^? locLDT . ldtValue . _1 . itUse . uaParams . apProjectiles . ix 0 =
@@ -80,7 +80,7 @@ structureUseAtLoc = \case
    MapperSF -> True
    _ -> False

-activateDetonator :: LDTree ItemLink CItem -> World -> World
+activateDetonator :: LDTree ItemLink OItem -> World -> World
 activateDetonator det = fromMaybe id $ do
    pjid <- det ^? ldtValue . _1 . itUse . uaParams . apProjectiles . ix 0
    return $ cWorld . lWorld . projectiles . ix pjid . pjTimer .~ 0
@@ -151,9 +151,9 @@ invRootItemEffs cr =
    appEndo $
        foldMap
            (reduceLocLDT (Endo . invItemLocUpdate cr) . LocLDT TopLDT)
-            (invLDT (_crInv cr))
+            (invLDT' (_crInv cr))

-invItemLocUpdate :: Creature -> LocationLDT ItemLink CItem -> World -> World
+invItemLocUpdate :: Creature -> LocationLDT ItemLink OItem -> World -> World
 invItemLocUpdate cr loc w = doAnyEquipmentEffect loc cr $ case itm ^. itType of
    ATTACH BULLETSYNTH -> trySynthBullet loc w
    EQUIP WRIST_ECG | haspulse -> tryUseParent loc w
@@ -208,21 +208,21 @@ copierItemUpdate itm cr w = fromMaybe w $ do
    v <- getItemValue itm' w cr
    return $ w & pointerToItem itm . itUse . uValue .~ v

-doAnyEquipmentEffect :: LocationLDT ItemLink CItem -> Creature -> World -> World
+doAnyEquipmentEffect :: LocationLDT ItemLink OItem -> Creature -> World -> World
 doAnyEquipmentEffect loc cr = case itm ^? itLocation . ilEquipSite . _Just of
    Just _ -> equipBackgroundEffect loc cr
    _ -> id
  where
    itm = loc ^. locLDT . ldtValue . _1

-tryUseParent :: LocationLDT ItemLink CItem -> World -> World
+tryUseParent :: LocationLDT ItemLink OItem -> World -> World
 tryUseParent loc w = fromMaybe w $ do
    t <- locUp loc
-    let t' = bimap id (^. _1) $ t ^. locLDT
+    let t' = bimap id id $ t ^. locLDT
    cr <- w ^? cWorld . lWorld . creatures . ix 0
    return $ heldEffectNoHammerCheck t' cr w

-trySynthBullet :: LocationLDT ItemLink CItem -> World -> World
+trySynthBullet :: LocationLDT ItemLink OItem -> World -> World
 trySynthBullet loc w = fromMaybe w $ do
    i <- itm ^? itLocation . ilInvID
    x <- itm ^? itUse . uaParams . apInt
@@ -278,7 +278,7 @@ trySynthBullet loc w = fromMaybe w $ do
 updateHeldRootItem :: Creature -> World -> World
 updateHeldRootItem cr = fromMaybe id $ do
    invid <- cr ^? crManipulation . manObject . imRootSelectedItem
-    itmtree <- invRootTrees (_crInv cr) ^? ix invid
+    itmtree <- invRootTrees' (_crInv cr) ^? ix invid
    return $ updateAttachedItems itmtree cr

 updateAttachedItems :: LDTree ItemLink CItem -> Creature -> World -> World
@@ -95,7 +95,7 @@ crInAimStance as cr = crIsAiming cr && mitstance == Just as
  where
    mitstance = do
        i <- cr ^? crManipulation . manObject . imRootSelectedItem
-        itm <- invRootTrees (cr ^. crInv) ^? ix i
+        itm <- invRootTrees' (cr ^. crInv) ^? ix i
        return $ aimStance itm
        --cr ^? crInv . ix i . itUse . heldAim . aimStance

@@ -162,7 +162,7 @@ updateDisplaySections w cfig =
    invitems =
        IM.map
            (uncurry (invSelectionItem w))
-            (allInvLocs $ _crInv cr)
+            (allInvLocs' $ _crInv cr)

 filterSectionsPair ::
    Bool -> -- check for whether filter is in focus, changes string at the end
@@ -12,7 +12,7 @@ import Dodge.Wall.Move
 import Geometry
 import LensHelp

-equipBackgroundEffect :: LocationLDT ItemLink CItem -> Creature -> World -> World
+equipBackgroundEffect :: LocationLDT ItemLink OItem -> Creature -> World -> World
 equipBackgroundEffect loc cr = case eo of
    EQUIP (MAGSHIELD mt) -> useMagShield mt itm cr
    EQUIP WRISTARMOUR -> setWristShieldPos itm cr
@@ -46,12 +46,12 @@ import RandomHelp
 import qualified SDL
 import Sound.Data

-gadgetEffect :: PressType -> LocationLDT ItemLink CItem -> Creature -> World -> World
+gadgetEffect :: PressType -> LocationLDT ItemLink OItem -> Creature -> World -> World
 gadgetEffect pt loc
    | UseHeld{} <- loc ^. locLDT . ldtValue . _1 . itUse =
        heldEffect
            pt
-            (bimap id (^. _1) (loc ^. locLDT))
+            (loc ^. locLDT)
    | DROPPER x <- loc ^. locLDT . ldtValue . _1 . itType
      , Just i <- loc ^? locLDT . ldtValue . _1 . itUse . uInt
      , pt == InitialPress =
@@ -61,46 +61,46 @@ gadgetEffect pt loc
        useInventoryPath pt i x loc
    | otherwise = const id

-heldEffect :: PressType -> LDTree ItemLink Item -> Creature -> World -> World
+heldEffect :: PressType -> LDTree ItemLink OItem -> Creature -> World -> World
 heldEffect = useTimeCheck . hammerCheck heldEffectMuzzles

-heldEffectNoHammerCheck :: LDTree ItemLink Item -> Creature -> World -> World
+heldEffectNoHammerCheck :: LDTree ItemLink OItem -> Creature -> World -> World
 heldEffectNoHammerCheck = useTimeCheck heldEffectMuzzles

 type ChainEffect =
-    (LDTree ItemLink Item -> Creature -> World -> World) ->
-    LDTree ItemLink Item ->
+    (LDTree ItemLink OItem -> Creature -> World -> World) ->
+    LDTree ItemLink OItem ->
    Creature ->
    World ->
    World

 hammerCheck ::
-    (LDTree ItemLink Item -> Creature -> World -> World) ->
+    (LDTree ItemLink OItem -> Creature -> World -> World) ->
    PressType ->
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Creature ->
    World ->
    World
 hammerCheck f pt it cr w
-    | BurstTrigger is <- itemTriggerType (it ^. ldtValue)
+    | BurstTrigger is <- itemTriggerType (it ^. ldtValue . _1)
      , pt == InitialPress =
        w & f it cr & cWorld . lWorld . delayedEvents .++~ map g is
-    | BurstTrigger{} <- itemTriggerType (it ^. ldtValue) = w
-    | VolleyGunTrigger i <- itemTriggerType (it ^. ldtValue)
+    | BurstTrigger{} <- itemTriggerType (it ^. ldtValue . _1) = w
+    | VolleyGunTrigger i <- itemTriggerType (it ^. ldtValue . _1)
      , pt == InitialPress =
        let (is, gen) = getVolleyBurst i (w ^. randGen)
         in w & f it cr
                & cWorld . lWorld . delayedEvents .++~ map g is
                & randGen .~ gen
-    | VolleyGunTrigger{} <- itemTriggerType (it ^. ldtValue) = w
-    | t <- itemTriggerType (it ^. ldtValue)
+    | VolleyGunTrigger{} <- itemTriggerType (it ^. ldtValue . _1) = w
+    | t <- itemTriggerType (it ^. ldtValue . _1)
      , t == HammerTrigger || t == AlwaysSingleTrigger
      , isNothing $ lookup MakeAutoLink (it ^. ldtRight)
      , pt /= InitialPress =
        w
    | otherwise = f it cr w
  where
-    g x = (x, WdWdBurstFireRepetition (_crID cr) (it ^?! ldtValue . itLocation . ilInvID))
+    g x = (x, WdWdBurstFireRepetition (_crID cr) (it ^?! ldtValue . _1 . itLocation . ilInvID))

 getVolleyBurst :: (Random a, RandomGen b, Num a) => Int -> b -> ([a], b)
 getVolleyBurst i g =
@@ -111,50 +111,50 @@ getVolleyBurst i g =
 input buffering?
 -}
 useTimeCheck :: ChainEffect
-useTimeCheck f item cr w = case useDelay $ item ^. ldtValue of
+useTimeCheck f item cr w = case useDelay $ item ^. ldtValue . _1 of
    FixedRate rate
        | w ^. cWorld . lWorld . lClock - rate > lastused -> f item cr w
    -- note that the time last used must be updated later in the chain!
    FixedRate{} -> w
    WarmUpNoDelay wm
-        | _wTime (_itParams $ _ldtValue item) < wm ->
+        | _wTime (_itParams $ _ldtValue $ fmap (^. _1) item) < wm ->
            w & setwarming
-                & soundContinue (CrWeaponSound cid 0) (_crPos cr) (warmupSound $ item ^. ldtValue . itType) (Just 2)
+                & soundContinue (CrWeaponSound cid 0) (_crPos cr) (warmupSound $ item ^. ldtValue . _1 . itType) (Just 2)
                & cWorld . lWorld . creatures . ix cid . crInv . ix itRef . itParams . wTime +~ 1
    WarmUpNoDelay{} -> f item cr w & setwarming
    WarmUpCoolDown ws _ _
-        | _wTime (_itParams $ _ldtValue item) < ws ->
+        | _wTime (_itParams $ _ldtValue $ fmap (^. _1) item) < ws ->
            w & setwarming
-                & soundContinue (CrWeaponSound cid 0) (_crPos cr) (warmupSound $ item ^. ldtValue . itType) (Just 2)
+                & soundContinue (CrWeaponSound cid 0) (_crPos cr) (warmupSound $ item ^. ldtValue . _1 . itType) (Just 2)
                & cWorld . lWorld . creatures . ix cid . crInv . ix itRef . itParams . wTime +~ 1
    WarmUpCoolDown _ cs _
-        | _wTime (_itParams $ _ldtValue item) < cs ->
+        | _wTime (_itParams $ _ldtValue $ fmap (^. _1) item) < cs ->
            f item cr w & setwarming
                & cWorld . lWorld . creatures . ix cid . crInv . ix itRef . itParams . wTime +~ 1
    WarmUpCoolDown{} -> w & setwarming
    NoDelay -> f item cr w
  where
-    lastused = item ^. ldtValue . itTimeLastUsed
+    lastused = item ^. ldtValue . _1 . itTimeLastUsed
    cid = _crID cr
    setwarming =
        cWorld . lWorld . creatures . ix cid . crInv . ix itRef . itParams . isWarming
            %~ const True
    -- the following is unsafe, but if ilInvID isn't correctly set we probably
    -- will have problems elsewhere also
-    itRef = item ^?! ldtValue . itLocation . ilInvID
+    itRef = item ^?! ldtValue . _1 . itLocation . ilInvID

-heldEffectMuzzles :: LDTree ItemLink Item -> Creature -> World -> World
+heldEffectMuzzles :: LDTree ItemLink OItem -> Creature -> World -> World
 heldEffectMuzzles t cr w =
    setusetime . doHeldUseEffect t cr
-        . uncurry (applyCME (_ldtValue t) cr)
+        . uncurry (applyCME (_ldtValue t ^. _1) cr)
        . foldl' (useLoadedAmmo t cr) (False, w)
        $ loadedmuzzles
  where
-    (_, loadedmuzzles) = mapAccumR loadMuzzle t . itemMuzzles $ t ^. ldtValue
+    (_, loadedmuzzles) = mapAccumR loadMuzzle t . itemMuzzles $ t ^. ldtValue . _1
    setusetime =
        cWorld . lWorld . creatures . ix (_crID cr) . crInv . ix itid . itTimeLastUsed
            .~ w ^. cWorld . lWorld . lClock
-    itid = t ^?! ldtValue . itLocation . ilInvID
+    itid = t ^?! ldtValue . _1 . itLocation . ilInvID

 itemMuzzles :: Item -> [Muzzle]
 itemMuzzles itm = case itm ^. itType of
@@ -337,8 +337,8 @@ vgunMuzzles i =
            --            <*> ZipList [0 .. i -1]
        )

-doHeldUseEffect :: LDTree ItemLink Item -> Creature -> World -> World
-doHeldUseEffect t cr w = case t ^. ldtValue . itType of
+doHeldUseEffect :: LDTree ItemLink OItem -> Creature -> World -> World
+doHeldUseEffect t cr w = case t ^. ldtValue . _1 . itType of
    HELD (VOLLEYGUN j) -> case itm ^? itParams . unfiredBarrels of
        Just [_] -> fromMaybe w $ do
            let (is, g) = runState (shuffle [0 .. j -1]) $ w ^. randGen
@@ -360,7 +360,7 @@ doHeldUseEffect t cr w = case t ^. ldtValue . itType of
                        %~ tail
        _ -> w
    HELD ALTERIFLE -> fromMaybe w $ do
-        i <- t ^? ldtValue . itLocation . ilInvID
+        i <- t ^? ldtValue . _1 . itLocation . ilInvID
        return $
            w
                & cWorld . lWorld . creatures . ix (_crID cr) . crInv . ix i
@@ -373,7 +373,7 @@ doHeldUseEffect t cr w = case t ^. ldtValue . itType of
                %~ ((`mod` 2) . (+ 1))
    _ -> w
  where
-    itm = t ^. ldtValue
+    itm = t ^. ldtValue . _1

 --doHeldUseEffect t cr w = case t ^? ldtValue . itUse . heldUseEffect of
 --    Just (RandomiseMuzzleFrames x) -> fromMaybe w $ do
@@ -678,15 +678,15 @@ heldTorqueAmount = \case

 -- (Muzzle,Int,Int) = (muzzle, amountloaded, id of mag taken from)
 loadMuzzle ::
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Muzzle ->
-    (LDTree ItemLink Item, Maybe (Muzzle, Int, LDTree ItemLink Item))
+    (LDTree ItemLink OItem, Maybe (Muzzle, Int, LDTree ItemLink OItem))
 loadMuzzle t@(LDT _ l _) mz = fromMaybe (t, Nothing) $ do
    --    guard $ mz ^? mzFrame == t ^? ldtValue . itUse . heldFrame
    let as = _mzAmmoSlot mz
        amamount = _mzAmmoPerShot mz
    (i, (_, mag)) <- findWithIx (isAmmoIntLink as . fst) l
-    availableammo <- mag ^. ldtValue . itConsumables
+    availableammo <- mag ^. ldtValue . _1 . itConsumables
    let usedammo = case amamount of
            UseUpTo x -> min x availableammo
            UseExactly x
@@ -694,11 +694,11 @@ loadMuzzle t@(LDT _ l _) mz = fromMaybe (t, Nothing) $ do
                | otherwise -> 0
    guard $ usedammo > 0
    return
-        ( t & ldtLeft . ix i . _2 . ldtValue . itConsumables . _Just -~ usedammo
+        ( t & ldtLeft . ix i . _2 . ldtValue . _1 . itConsumables . _Just -~ usedammo
        , Just (mz, usedammo, mag)
        )

-makeMuzzleFlare :: Muzzle -> LDTree ItemLink Item -> Creature -> World -> World
+makeMuzzleFlare :: Muzzle -> LDTree ItemLink OItem -> Creature -> World -> World
 makeMuzzleFlare mz itmtree cr = case mz ^. mzFlareType of
    NoFlare -> id
    BasicFlare -> basicMuzFlare pos dir
@@ -708,14 +708,14 @@ makeMuzzleFlare mz itmtree cr = case mz ^. mzFlareType of
            . muzFlareAt (V4 10 10 1 3) (pos `v2z` 20) dir
    HeavySmokeFlare -> basicMuzFlare pos dir
    LasGunFlare ->
-        flareCircleAt (getLaserColor itmtree) 0.8 (pos `v2z` 20)
+        flareCircleAt (getLaserColor $ fmap (^. _1) itmtree) 0.8 (pos `v2z` 20)
            . ( cWorld . lWorld . lights
-                    .:~ LSParam (pos `v2z` 10) 100 (xyzV4 $ getLaserColor itmtree)
+                    .:~ LSParam (pos `v2z` 10) 100 (xyzV4 $ getLaserColor  $ fmap (^. _1)itmtree)
              )
    TeslaGunFlare -> cWorld . lWorld . lights .:~ LSParam (pos `v2z` 10) 100 (V3 0 0 1)
  where
    itm = itmtree ^. ldtValue
-    (moff, mrot) = heldItemOrient2D itm cr (_mzPos mz) (_mzRot mz)
+    (moff, mrot) = heldItemOrient2D' itm cr (_mzPos mz) (_mzRot mz)
    pos = _crPos cr + rotateV (_crDir cr) moff
    dir = _crDir cr + mrot
    oddcheck f w
@@ -768,10 +768,10 @@ isAmmoIntLink i (AmmoInLink j _) = i == j
 isAmmoIntLink _ _ = False

 useLoadedAmmo ::
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Creature ->
    (Bool, World) ->
-    Maybe (Muzzle, Int, LDTree ItemLink Item) ->
+    Maybe (Muzzle, Int, LDTree ItemLink OItem) ->
    (Bool, World)
 useLoadedAmmo _ _ (cme, w) Nothing = (cme, w)
 useLoadedAmmo itmtree cr (_, w) (Just (mz, x, magtree)) = (,) True $
@@ -783,29 +783,29 @@ useLoadedAmmo itmtree cr (_, w) (Just (mz, x, magtree)) = (,) True $
        MuzzleRLauncher -> createProjectileR itmtree magtree mz cr w
        MuzzleGLauncher ->
            createProjectile
-                (0, Q.qID)
-                (Grenade (getGrenadeHitEffect itmtree))
+                (itmtree ^. ldtValue . _3)
+                (Grenade (getGrenadeHitEffect $ fmap (^. _1) itmtree))
                magtree
-                (getPJStabiliser itmtree)
+                (getPJStabiliser $ fmap (^. _1) itmtree)
                mz
                cr
                w
-        MuzzleNozzle{} -> useGasParams mid mz itm cr $ walkNozzle mz itm cr w
-        MuzzleShatter -> shootShatter itm cr w
+        MuzzleNozzle{} -> useGasParams mid mz (itm ^. _1) cr $ walkNozzle mz (itm ^. _1) cr w
+        MuzzleShatter -> shootShatter (itm ^. _1) cr w
        MuzzleDetector ->
            itemDetectorEffect
-                itm
-                (getAttachedSFLink MapperSF itmtree)
-                (getAttachedSFLink ARHUDSF itmtree)
+                (itm ^. _1)
+                (getAttachedSFLink MapperSF $ fmap (^. _1) itmtree)
+                (getAttachedSFLink ARHUDSF $ fmap (^. _1) itmtree)
                cr
                w
        MuzzleBlink -> unsafeBlinkAction cr w
        MuzzleUnsafeBlink -> blinkActionMousePos cr w
-        MuzzleRewind -> useRewindGun (itm ^. itID) w
-        MuzzleStopper -> useStopWatch itm cr w
-        MuzzleScroller -> useTimeScrollGun itm cr w
+        MuzzleRewind -> useRewindGun (itm ^. _1 . itID) w
+        MuzzleStopper -> useStopWatch (itm ^. _1) cr w
+        MuzzleScroller -> useTimeScrollGun (itm ^. _1) cr w
  where
-    mid = magtree ^? ldtValue . itLocation . ilInvID
+    mid = magtree ^? ldtValue . _1 . itLocation . ilInvID
    itm = itmtree ^. ldtValue

 getAttachedSFLink ::
@@ -871,7 +871,7 @@ tractorBeamAt pos outpos dir power =
    d = unitVectorAtAngle dir * power

 creatureShootLaser ::
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Creature ->
    Muzzle ->
    World ->
@@ -881,14 +881,15 @@ creatureShootLaser itmtree cr mz w =
        & randGen .~ g
        & shootLaser
            (CrWeaponSound (_crID cr) 0)
-            (getLaserDamage itmtree)
-            (getLaserPhaseV itmtree)
+            (getLaserDamage istree)
+            (getLaserPhaseV istree)
            pos
            dir
-            (getLaserColor itmtree)
+            (getLaserColor istree)
  where
+    istree = fmap (\(x,_,_) -> x) itmtree
    itm = itmtree ^. ldtValue
-    (moff, mrot) = heldItemOrient2D itm cr (_mzPos mz) (_mzRot mz)
+    (moff, mrot) = heldItemOrient2D' itm cr (_mzPos mz) (_mzRot mz)
    pos = _crPos cr + rotateV (_crDir cr) moff
    dir = _crDir cr + mrot + a
    (a, g) = randomR (- inacc, inacc) $ _randGen w
@@ -981,14 +982,14 @@ magAmmoParams itm = case itm ^. itType of
 --        _ -> 0

 shootBullet ::
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Creature ->
-    (Muzzle, Int, LDTree ItemLink Item) ->
+    (Muzzle, Int, LDTree ItemLink OItem) ->
    World ->
    World
 shootBullet itmtree cr (mz, x, magtree) w = fromMaybe w $ do
-    thebullet <- getBulletType magtree
-    return $ foldl' (&) w (replicate x (makeBullet' thebullet (itmtree ^. ldtValue) cr mz))
+    thebullet <- getBulletType $ fmap (^. _1) magtree
+    return $ foldl' (&) w (replicate x (makeBullet' thebullet (itmtree ^. ldtValue . _1) cr mz))

 makeBullet' :: Bullet -> Item -> Creature -> Muzzle -> World -> World
 makeBullet' bu itm cr mz w = makeBullet bu itm bulpos dir . (randGen .~ g) $ w
@@ -1255,15 +1256,15 @@ mcShootAuto itm mc w
    dir = mc ^?! mcType . _McTurret . tuDir

 -- | assumes that the item is held
-shootTeslaArc :: Item -> Creature -> Muzzle -> World -> World
+shootTeslaArc :: OItem -> Creature -> Muzzle -> World -> World
 shootTeslaArc itm cr mz w =
    w' & cWorld . lWorld . creatures . ix (_crID cr) . crInv . ix itRef . itParams .~ ip
        & soundContinue (CrWeaponSound (_crID cr) 0) pos elecCrackleS (Just 2)
  where
    -- use items item location instead
    itRef = cr ^?! crManipulation . manObject . imRootSelectedItem -- unsafe!! TODO change
-    (w', ip) = makeTeslaArc (_itParams itm) pos dir w
-    (moff, mrot) = heldItemOrient2D itm cr (_mzPos mz) (_mzRot mz)
+    (w', ip) = makeTeslaArc (_itParams (itm ^. _1)) pos dir w
+    (moff, mrot) = heldItemOrient2D' itm cr (_mzPos mz) (_mzRot mz)
    pos = _crPos cr + rotateV (_crDir cr) moff
    dir = _crDir cr + mrot

@@ -1282,21 +1283,21 @@ determineProjectileTracking magtree itmtree =
        return $ HomeUsingTargeting (targetingtree ^. ldtValue . itID)

 createProjectileR ::
-    LDTree ItemLink Item ->
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
+    LDTree ItemLink OItem ->
    Muzzle ->
    Creature ->
    World ->
    World
 createProjectileR itmtree magtree =
    createProjectile
-        (0, Q.qID)
+        (itmtree ^. ldtValue . _3)
        ( Rocket
-            (determineProjectileTracking magtree itmtree)
+            (determineProjectileTracking (fmap (^. _1) magtree) $ fmap (^. _1) itmtree)
            smoke
        )
        magtree
-        (getPJStabiliser itmtree)
+        (getPJStabiliser $ fmap (^. _1) itmtree)
  where
    smoke
        | isJust $ lookup SmokeReducerLink (magtree ^. ldtLeft) = Just ReducedRocketSmoke
@@ -1320,23 +1321,23 @@ getGrenadeHitEffect t = case lookup GrenadeHitEffectLink (t ^. ldtRight) of
 createProjectile ::
    (Point3, Q.Quaternion Float) ->
    ProjectileType ->
-    LDTree ItemLink Item ->
+    LDTree ItemLink OItem ->
    Maybe PJStabiliser ->
    Muzzle ->
    Creature ->
    World ->
    World
 createProjectile x pjtype magtree stab muz cr = fromMaybe failsound $ do
-    magid <- magtree ^? ldtValue . itLocation . ilInvID
+    magid <- magtree ^? ldtValue . _1 . itLocation . ilInvID
    ammoitem <- cr ^? crInv . ix magid
    let rdetonate =
-            (^. ldtValue . itID)
+            (^. ldtValue . _1 . itID)
                <$> lookup RemoteDetonatorLink (magtree ^. ldtLeft)
        rscreen =
-            (^. ldtValue . itID)
+            (^. ldtValue . _1 . itID)
                <$> lookup RemoteScreenLink (magtree ^. ldtLeft)
    aparams <-
-        ((magtree ^? ldtLeft) >>= lookup AmmoPayloadLink >>= (^? ldtValue . itType . ibtAttach . shellPayload))
+        ((magtree ^? ldtLeft) >>= lookup AmmoPayloadLink >>= (^? ldtValue . _1 . itType . ibtAttach . shellPayload))
            --            <|> ammoitem ^? itConsumables . magParams . ampPayload
            <|> magAmmoParams ammoitem ^? _Just . ampPayload
    return $
@@ -1400,7 +1401,7 @@ useRewindGun i =
 dropInventoryPath ::
    Int ->
    InventoryPathing ->
-    LocationLDT ItemLink CItem ->
+    LocationLDT ItemLink OItem ->
    Creature ->
    World ->
    World
@@ -1432,7 +1433,7 @@ useInventoryPath ::
    PressType ->
    Int ->
    InventoryPathing ->
-    LocationLDT ItemLink CItem ->
+    LocationLDT ItemLink OItem ->
    Creature ->
    World ->
    World
@@ -1,12 +1,16 @@
 module Dodge.Item.Grammar (
    invLDT,
+    invLDT',
    invAdj,
    invRootMap,
    invRootTrees,
+    invRootTrees',
    baseCI,
    allInvLocs,
+    allInvLocs',
 ) where

+import Dodge.Item.Orientation
 import Dodge.ItemUseCondition
 import Dodge.Data.UseCondition
 import Dodge.Item.MagAmmoType
@@ -218,6 +222,9 @@ invLDT =
    joinItemsInList tryAttachItems . IM.elems
        . fmap (singleLDT . baseCI)

+invLDT' :: IM.IntMap Item -> [LDTree ItemLink OItem]
+invLDT' = fmap propagateOrientation . invLDT
+
 -- this assumes the creature inventory is well formed, specifically the
 -- location ids
 -- consider explicitly reseting the inventory ids (but this probably really
@@ -243,15 +250,42 @@ invAdj = IM.unions . map g . invLDT
            $ itm ^? itLocation . ilInvID

 -- returns an intmap with trees for (only!) root items, indexed by inventory position
-invRootTrees :: IM.IntMap Item -> IM.IntMap (LDTree ItemLink CItem)
-invRootTrees = IM.fromDistinctAscList . reverse . map getid . invLDT
+invRootTrees :: IM.IntMap Item -> IM.IntMap (LDTree ItemLink OItem)
+invRootTrees = fmap propagateOrientation . IM.fromDistinctAscList . reverse . map getid . invLDT
+  where
+    getid :: LDTree ItemLink CItem -> (Int, LDTree ItemLink CItem)
+    getid t = (t ^?! ldtValue . _1 . itLocation . ilInvID, t)
+
+invRootTrees' :: IM.IntMap Item -> IM.IntMap (LDTree ItemLink CItem)
+invRootTrees' = IM.fromDistinctAscList . reverse . map getid . invLDT
  where
    getid :: LDTree ItemLink CItem -> (Int, LDTree ItemLink CItem)
    getid t = (t ^?! ldtValue . _1 . itLocation . ilInvID, t)

 -- returns an intmap with indents and locations for all items
-allInvLocs :: IM.IntMap Item -> IM.IntMap (Int, LocationLDT ItemLink CItem)
+allInvLocs :: IM.IntMap Item -> IM.IntMap (Int, LocationLDT ItemLink OItem)
 allInvLocs inv = foldMap (f . LocLDT TopLDT) (IM.elems (invRootTrees inv)) mempty
+  where
+    f t = cldtPropagateFold h h g 0 t id
+    h x _ _ _ = x + 1
+    g ::
+        Int ->
+        LocationLDT ItemLink OItem ->
+        ( IM.IntMap (Int, LocationLDT ItemLink OItem) ->
+          IM.IntMap (Int, LocationLDT ItemLink OItem)
+        ) ->
+        IM.IntMap (Int, LocationLDT ItemLink OItem) ->
+        IM.IntMap (Int, LocationLDT ItemLink OItem)
+    g x ldt =
+        (.)
+            ( IM.insert
+                (ldt ^?! locLDT . ldtValue . _1 . itLocation . ilInvID)
+                (x, ldt)
+            )
+
+-- returns an intmap with indents and locations for all items
+allInvLocs' :: IM.IntMap Item -> IM.IntMap (Int, LocationLDT ItemLink CItem)
+allInvLocs' inv = foldMap (f . LocLDT TopLDT) (IM.elems (invRootTrees' inv)) mempty
  where
    f t = cldtPropagateFold h h g 0 t id
    h x _ _ _ = x + 1
@@ -5,6 +5,7 @@ module Dodge.Item.HeldOffset (
    heldItemOffset,
    heldItemRelativeOrient,
    heldItemOrient2D,
+    heldItemOrient2D',
    itemRelativeOrient,
 ) where

@@ -36,6 +37,11 @@ heldItemOrient2D itm cr p a = (V2 x y, argV . Q.qToV2 $ q )
  where
    (V3 x y _,q) = heldItemRelativeOrient itm cr (p `v2z` 0, Q.axisAngle (V3 0 0 1) a)

+heldItemOrient2D' :: OItem -> Creature -> Point2 -> Float -> (Point2, Float)
+heldItemOrient2D' (itm,_,(p1,q1)) cr p a = (V2 x y, argV . Q.qToV2 $ q )
+  where
+    (V3 x y _,q) = heldItemRelativeOrient itm cr (p1 + Q.rotate q1 (p `v2z` 0), q1 * Q.axisAngle (V3 0 0 1) a)
+
 heldItemRelativeOrient 
    :: Item -> Creature -> (Point3, Q.Quaternion Float) -> (Point3, Q.Quaternion Float)
 heldItemRelativeOrient itm cr (p,q)
@@ -18,8 +18,10 @@ orientChild itm = case _itType itm of
    HELD TORCH -> (V3 0 5 0, Q.qID)
    --HELD LASER -> (V3 15 (-5) 0, Q.qID)
    HELD LASER -> (V3 15 (-5) 0, Q.qID)
-    ATTACH UNDERBARRELSLOT -> (V3 10 (-8) 0, Q.qID)
+    ATTACH UNDERBARRELSLOT -> (V3 10 (-8) 0, r)
    _ -> (0, Q.qID)
+  where
+    r = Q.axisAngle (V3 0 0 1) (-pi/4)

 orientByLink :: Item -> ItemLink -> (Point3, Q.Quaternion Float)
 orientByLink itm lt = case (_itType itm, lt) of
@@ -58,8 +60,7 @@ orientLocation x loc (p1, q1) = (p + Q.rotate q p1, q * q1)
  where
    (p, q) = orientLocation' x loc

-propagateOrientation :: LDTree ItemLink CItem 
-    -> LDTree ItemLink OItem
+propagateOrientation :: LDTree ItemLink CItem -> LDTree ItemLink OItem
 propagateOrientation = ldtStartPropagate g f
  where
    g (x,y) = (x,y,(V3 0 0 0,Q.qID))
@@ -21,6 +21,7 @@ data PJStabiliser
    | StabSpinIncrease

 -- assumes the mscreen is in your inventory
+-- TODO take into account creature aimstance positioning
 createShell ::
    (Point3, Q.Quaternion Float) ->
    Maybe (NewInt ItmInt) ->
@@ -41,9 +42,9 @@ createShell (p,q) mdetonator mscreen stab pjtype payload muz cr w =
                { _pjPos = pos
                , _pjZ = 20
                , _pjZVel = 5
-                , _pjVel = rotateV dir (V2 speed 0) + crvelcomponent
+                , _pjVel = rotateV dir' (V2 speed 0) + crvelcomponent
                , _pjID = i
-                , _pjDir = dir
+                , _pjDir = dir'
                , _pjSpin = 0
                , _pjSpinFactor = spinfactor
                , _pjPayload = payload
@@ -93,4 +94,5 @@ createShell (p,q) mdetonator mscreen stab pjtype payload muz cr w =
                .:~ i
    i = IM.newKey $ w ^. cWorld . lWorld . projectiles
    dir = _crDir cr + _mzRot muz
-    pos = _crPos cr + xyV3 p + rotateV dir (_mzPos muz)
+    pos = _crPos cr + rotateV dir (xyV3 p + rotateV (argV (Q.qToV2 q)) (_mzPos muz))
+    dir' = dir  + argV (Q.qToV2 q)
@@ -45,7 +45,7 @@ doWdWd we = case we of
    UseInvItem invid pt -> \w -> fromMaybe w (useItem invid pt w)
    WdWdBurstFireRepetition cid invid -> \w -> fromMaybe w $ do
        cr <- w ^? cWorld . lWorld . creatures . ix cid
-        itree <- bimap id (^. _1) <$> 
+        itree <- bimap id id <$> 
            allInvLocs (cr ^. crInv) ^? ix invid . _2 . locLDT
        return $ heldEffectMuzzles itree cr w

@@ -29,7 +29,7 @@ APNothing	src/Dodge/Data/Item/Use.hs	48;"	C
 APProjectiles	src/Dodge/Data/Item/Use.hs	46;"	C
 AQUAMARINE	src/Color/Data.hs	24;"	C
 ARHUD	src/Dodge/Data/Item/Combine.hs	35;"	C
-ARHUDSF	src/Dodge/Data/ComposedItem.hs	46;"	C
+ARHUDSF	src/Dodge/Data/ComposedItem.hs	48;"	C
 ATTACH	src/Dodge/Data/Item/Combine.hs	20;"	C
 AUTOAMR	src/Dodge/Data/Item/Combine.hs	159;"	C
 AUTOPISTOL	src/Dodge/Data/Item/Combine.hs	145;"	C
@@ -58,20 +58,20 @@ AlwaysSingleTrigger	src/Dodge/Data/TriggerType.hs	13;"	C
 Ambush	src/Dodge/Data/ActionPlan.hs	178;"	C
 Ammo	src/Dodge/Data/Item/Use/Consumption/Ammo.hs	3;"	m
 Ammo	src/Dodge/Item/Ammo.hs	1;"	m
-AmmoEffectLink	src/Dodge/Data/ComposedItem.hs	18;"	C
-AmmoEffectSF	src/Dodge/Data/ComposedItem.hs	56;"	C
-AmmoInLink	src/Dodge/Data/ComposedItem.hs	13;"	C
-AmmoMagSF	src/Dodge/Data/ComposedItem.hs	47;"	C
+AmmoEffectLink	src/Dodge/Data/ComposedItem.hs	20;"	C
+AmmoEffectSF	src/Dodge/Data/ComposedItem.hs	58;"	C
+AmmoInLink	src/Dodge/Data/ComposedItem.hs	15;"	C
+AmmoMagSF	src/Dodge/Data/ComposedItem.hs	49;"	C
 AmmoMagType	src/Dodge/Data/Item/Combine.hs	105;"	t
-AmmoModLink	src/Dodge/Data/ComposedItem.hs	15;"	C
-AmmoModifierSF	src/Dodge/Data/ComposedItem.hs	53;"	C
+AmmoModLink	src/Dodge/Data/ComposedItem.hs	17;"	C
+AmmoModifierSF	src/Dodge/Data/ComposedItem.hs	55;"	C
 AmmoParams	src/Dodge/Data/Item/Use.hs	51;"	t
-AmmoPayloadLink	src/Dodge/Data/ComposedItem.hs	17;"	C
-AmmoPayloadSF	src/Dodge/Data/ComposedItem.hs	55;"	C
+AmmoPayloadLink	src/Dodge/Data/ComposedItem.hs	19;"	C
+AmmoPayloadSF	src/Dodge/Data/ComposedItem.hs	57;"	C
 AmmoPerShot	src/Dodge/Data/Muzzle.hs	52;"	t
 AmmoSlots	src/Dodge/Item/AmmoSlots.hs	3;"	m
-AmmoTargetingLink	src/Dodge/Data/ComposedItem.hs	16;"	C
-AmmoTargetingSF	src/Dodge/Data/ComposedItem.hs	54;"	C
+AmmoTargetingLink	src/Dodge/Data/ComposedItem.hs	18;"	C
+AmmoTargetingSF	src/Dodge/Data/ComposedItem.hs	56;"	C
 AmmoType	src/Dodge/Data/AmmoType.hs	3;"	m
 AnRoom	src/Dodge/Annotation/Data.hs	18;"	C
 AnTree	src/Dodge/Annotation/Data.hs	19;"	C
@@ -250,7 +250,7 @@ CHARTREUSE	src/Color/Data.hs	25;"	C
 CHEMFUELPOUCH	src/Dodge/Data/Item/Combine.hs	111;"	C
 CHeal	src/Dodge/Data/Item/HeldUse.hs	16;"	C
 CIRCLE	src/Dodge/Data/GenParams.hs	20;"	C
-CItem	src/Dodge/Data/ComposedItem.hs	65;"	t
+CItem	src/Dodge/Data/ComposedItem.hs	67;"	t
 CLICKER	src/Dodge/Data/Item/Combine.hs	28;"	C
 CME	src/Dodge/Data/MuzzleEffect.hs	14;"	C
 COPIER	src/Dodge/Data/Item/Combine.hs	29;"	C
@@ -629,7 +629,7 @@ Equipment	src/Dodge/Default/Item/Use/Equipment.hs	1;"	m
 Equipment	src/Dodge/Equipment.hs	1;"	m
 Equipment	src/Dodge/Item/Equipment.hs	1;"	m
 EquipmentAllocation	src/Dodge/Data/RightButtonOptions.hs	18;"	t
-EquipmentPlatformSF	src/Dodge/Data/ComposedItem.hs	40;"	C
+EquipmentPlatformSF	src/Dodge/Data/ComposedItem.hs	42;"	C
 Escape	src/Dodge/Data/Scenario.hs	10;"	C
 EscapeMenuOption	src/Dodge/Data/Universe.hs	76;"	t
 Essential	src/Shape/Data.hs	34;"	C
@@ -728,8 +728,8 @@ FullRes	src/Dodge/Data/Config.hs	97;"	C
 FullShadowFidelity	src/Shape/Data.hs	24;"	C
 FullSize	src/Dodge/Data/Item/Params.hs	28;"	C
 FullyVisible	src/Dodge/Data/CamouflageStatus.hs	6;"	C
-FunctionChangeLink	src/Dodge/Data/ComposedItem.hs	26;"	C
-FunctionChangeSF	src/Dodge/Data/ComposedItem.hs	57;"	C
+FunctionChangeLink	src/Dodge/Data/ComposedItem.hs	28;"	C
+FunctionChangeSF	src/Dodge/Data/ComposedItem.hs	59;"	C
 GBounce	src/Dodge/Data/Projectile.hs	57;"	C
 GEqC	src/SameConstr.hs	20;"	c
 GIMBAL	src/Dodge/Data/Item/Combine.hs	96;"	C
@@ -742,7 +742,7 @@ GStick	src/Dodge/Data/Projectile.hs	58;"	C
 GStuckCreature	src/Dodge/Data/Projectile.hs	59;"	C
 GStuckWall	src/Dodge/Data/Projectile.hs	60;"	C
 GYROSCOPE	src/Dodge/Data/Item/Combine.hs	97;"	C
-GadgetPlatformSF	src/Dodge/Data/ComposedItem.hs	41;"	C
+GadgetPlatformSF	src/Dodge/Data/ComposedItem.hs	43;"	C
 GameOverOptions	src/Dodge/Data/Universe.hs	72;"	C
 GameRoom	src/Dodge/GameRoom.hs	15;"	t
 GameRoom	src/Dodge/GameRoom.hs	8;"	m
@@ -787,8 +787,8 @@ GraphHelp	src/GraphHelp.hs	1;"	m
 GraphVizHelp	src/GraphVizHelp.hs	2;"	m
 Grenade	src/Dodge/Data/Projectile.hs	42;"	C
 GrenadeHitEffect	src/Dodge/Data/Projectile.hs	56;"	t
-GrenadeHitEffectLink	src/Dodge/Data/ComposedItem.hs	31;"	C
-GrenadeHitEffectSF	src/Dodge/Data/ComposedItem.hs	60;"	C
+GrenadeHitEffectLink	src/Dodge/Data/ComposedItem.hs	33;"	C
+GrenadeHitEffectSF	src/Dodge/Data/ComposedItem.hs	62;"	C
 Grid	src/Grid.hs	1;"	m
 Gust	src/Dodge/Data/Gust.hs	13;"	t
 Gust	src/Dodge/Data/Gust.hs	6;"	m
@@ -823,7 +823,7 @@ Held	src/Dodge/Item/Held.hs	1;"	m
 HeldDelay	src/Dodge/Data/Item/HeldDelay.hs	6;"	m
 HeldItemType	src/Dodge/Data/Item/Combine.hs	138;"	t
 HeldOffset	src/Dodge/Item/HeldOffset.hs	2;"	m
-HeldPlatformSF	src/Dodge/Data/ComposedItem.hs	37;"	C
+HeldPlatformSF	src/Dodge/Data/ComposedItem.hs	39;"	C
 HeldScroll	src/Dodge/HeldScroll.hs	1;"	m
 HeldUse	src/Dodge/Data/Item/HeldUse.hs	6;"	m
 HeldUse	src/Dodge/HeldUse.hs	5;"	m
@@ -911,7 +911,7 @@ Intention	src/Dodge/Data/Creature.hs	66;"	t
 Intention	src/Dodge/Creature/Intention.hs	1;"	m
 Intersect	src/Geometry/Intersect.hs	5;"	m
 IntersectingRoomClipBoundaries	src/Dodge/Data/Config.hs	107;"	C
-IntroScanSF	src/Dodge/Data/ComposedItem.hs	44;"	C
+IntroScanSF	src/Dodge/Data/ComposedItem.hs	46;"	C
 IntroScanType	src/Dodge/Data/Item/Combine.hs	44;"	t
 InvInt	src/Dodge/Data/Item/Location.hs	19;"	t
 InvSize	src/Dodge/Item/InvSize.hs	2;"	m
@@ -944,7 +944,7 @@ ItemCancelExamineInventory	src/Dodge/Data/Item/Effect.hs	31;"	C
 ItemClust	src/Dodge/Combine/Graph.hs	21;"	C
 ItemCopierUpdate	src/Dodge/Data/Item/Effect.hs	32;"	C
 ItemDimension	src/Dodge/Data/Item/Misc.hs	13;"	t
-ItemLink	src/Dodge/Data/ComposedItem.hs	12;"	t
+ItemLink	src/Dodge/Data/ComposedItem.hs	14;"	t
 ItemLocation	src/Dodge/Data/Item/Location.hs	28;"	t
 ItemParamID	src/Dodge/Data/Item/Params.hs	26;"	C
 ItemParams	src/Dodge/Data/Item/Params.hs	14;"	t
@@ -955,7 +955,7 @@ ItemScrollInt	src/Dodge/Data/Item.hs	53;"	C
 ItemScrollIntRange	src/Dodge/Data/Item.hs	54;"	C
 ItemScrollTimeFlow	src/Dodge/Data/World.hs	62;"	C
 ItemSetWarmTime	src/Dodge/Data/Item/Effect.hs	34;"	C
-ItemStructuralFunction	src/Dodge/Data/ComposedItem.hs	35;"	t
+ItemStructuralFunction	src/Dodge/Data/ComposedItem.hs	37;"	t
 ItemTargeting	src/Dodge/Data/Item.hs	56;"	t
 ItemType	src/Dodge/Data/Item/Combine.hs	16;"	t
 ItemUse	src/Dodge/Data/Item/Use.hs	30;"	t
@@ -969,8 +969,8 @@ JGK	src/Control/Foldl/JGK.hs	1;"	m
 JOYSTICK	src/Dodge/Data/Item/Combine.hs	95;"	C
 JUMPLEGS	src/Dodge/Data/Item/Combine.hs	130;"	C
 JoinClust	src/Dodge/Combine/Graph.hs	22;"	C
-JoystickLink	src/Dodge/Data/ComposedItem.hs	21;"	C
-JoystickSF	src/Dodge/Data/ComposedItem.hs	49;"	C
+JoystickLink	src/Dodge/Data/ComposedItem.hs	23;"	C
+JoystickSF	src/Dodge/Data/ComposedItem.hs	51;"	C
 Just'	src/MaybeHelp.hs	13;"	C
 JustStartedPlaying	src/Sound/Data.hs	24;"	C
 Justify	src/Justify.hs	1;"	m
@@ -979,7 +979,7 @@ Kill	src/Dodge/Data/ActionPlan.hs	198;"	C
 LASER	src/Dodge/Data/Item/Combine.hs	168;"	C
 LDT	src/Dodge/Data/DoubleTree.hs	34;"	C
 LDTBottomNode	src/Dodge/Data/DoubleTree.hs	29;"	C
-LDTComb	src/Dodge/Item/Grammar.hs	162;"	t
+LDTComb	src/Dodge/Item/Grammar.hs	164;"	t
 LDTMidAboveNode	src/Dodge/Data/DoubleTree.hs	27;"	C
 LDTMidBelowNode	src/Dodge/Data/DoubleTree.hs	28;"	C
 LDTRootNode	src/Dodge/Data/DoubleTree.hs	25;"	C
@@ -1130,8 +1130,8 @@ MagnetUpdate	src/Dodge/Data/Magnet.hs	13;"	t
 MagnetUpdateTimer	src/Dodge/Data/Magnet.hs	13;"	C
 Main	appDodge/Main.hs	1;"	m
 Make	src/Dodge/Corpse/Make.hs	1;"	m
-MakeAutoLink	src/Dodge/Data/ComposedItem.hs	27;"	C
-MakeAutoSF	src/Dodge/Data/ComposedItem.hs	58;"	C
+MakeAutoLink	src/Dodge/Data/ComposedItem.hs	29;"	C
+MakeAutoSF	src/Dodge/Data/ComposedItem.hs	60;"	C
 MakeSound	src/Dodge/Data/ActionPlan.hs	43;"	C
 MakeStartCloudAt	src/Dodge/Data/WorldEffect.hs	29;"	C
 MakeTempLight	src/Dodge/Data/WorldEffect.hs	33;"	C
@@ -1139,7 +1139,7 @@ ManipulatedObject	src/Dodge/Data/Item/Use/Consumption/LoadAction.hs	20;"	t
 Manipulation	src/Dodge/Data/Item/Use/Consumption/LoadAction.hs	14;"	t
 Manipulator	src/Dodge/Data/Item/Use/Consumption/LoadAction.hs	15;"	C
 MapperInventory	src/Dodge/Data/HUD.hs	31;"	C
-MapperSF	src/Dodge/Data/ComposedItem.hs	62;"	C
+MapperSF	src/Dodge/Data/ComposedItem.hs	64;"	C
 Mass	src/Dodge/Creature/Mass.hs	2;"	m
 Material	src/Dodge/Data/Material.hs	11;"	t
 Material	src/Dodge/Creature/Material.hs	3;"	m
@@ -1288,7 +1288,7 @@ NoParams	src/Dodge/Data/Item/Params.hs	15;"	C
 NoResurrection	src/Dodge/Data/Corpse.hs	14;"	C
 NoRightButtonOptions	src/Dodge/Data/RightButtonOptions.hs	14;"	C
 NoRoomClipBoundaries	src/Dodge/Data/Config.hs	107;"	C
-NoSF	src/Dodge/Data/ComposedItem.hs	52;"	C
+NoSF	src/Dodge/Data/ComposedItem.hs	54;"	C
 NoShadowFidelity	src/Shape/Data.hs	25;"	C
 NoShadows	src/Dodge/Data/Config.hs	103;"	C
 NoSubInventory	src/Dodge/Data/HUD.hs	29;"	C
@@ -1335,6 +1335,7 @@ NumShadowCasters6	src/Dodge/Data/Config.hs	21;"	C
 NumShadowCasters7	src/Dodge/Data/Config.hs	22;"	C
 NumShadowCasters8	src/Dodge/Data/Config.hs	23;"	C
 NumShadowCasters9	src/Dodge/Data/Config.hs	24;"	C
+OItem	src/Dodge/Data/ComposedItem.hs	69;"	t
 ORANGE	src/Color/Data.hs	26;"	C
 ObButton	src/Dodge/Data/ObjectType.hs	17;"	C
 ObCreature	src/Dodge/Data/ObjectType.hs	13;"	C
@@ -1501,8 +1502,8 @@ Projectile	src/Dodge/Data/Projectile.hs	17;"	t
 Projectile	src/Dodge/Data/Projectile.hs	6;"	m
 Projectile	src/Dodge/Projectile.hs	1;"	m
 ProjectileParams	src/Dodge/Data/Item/Use.hs	53;"	C
-ProjectileStabiliserLink	src/Dodge/Data/ComposedItem.hs	28;"	C
-ProjectileStabiliserSF	src/Dodge/Data/ComposedItem.hs	59;"	C
+ProjectileStabiliserLink	src/Dodge/Data/ComposedItem.hs	30;"	C
+ProjectileStabiliserSF	src/Dodge/Data/ComposedItem.hs	61;"	C
 ProjectileType	src/Dodge/Data/Projectile.hs	41;"	t
 ProjectileUpdate	src/Dodge/Data/Projectile.hs	35;"	t
 Prop	src/Dodge/Data/Prop.hs	18;"	t
@@ -1610,11 +1611,11 @@ ReigonalGovernment	src/Dodge/Data/Scenario.hs	50;"	C
 Religion	src/Dodge/Data/Scenario.hs	47;"	C
 Reload	src/Dodge/Data/ActionPlan.hs	190;"	C
 ReloadStatus	src/Dodge/Data/Item/Use/Consumption.hs	20;"	t
-RemoteDetonatorLink	src/Dodge/Data/ComposedItem.hs	23;"	C
-RemoteDetonatorSF	src/Dodge/Data/ComposedItem.hs	50;"	C
+RemoteDetonatorLink	src/Dodge/Data/ComposedItem.hs	25;"	C
+RemoteDetonatorSF	src/Dodge/Data/ComposedItem.hs	52;"	C
 RemoteDirectionPU	src/Dodge/Data/Projectile.hs	38;"	C
-RemoteScreenLink	src/Dodge/Data/ComposedItem.hs	22;"	C
-RemoteScreenSF	src/Dodge/Data/ComposedItem.hs	48;"	C
+RemoteScreenLink	src/Dodge/Data/ComposedItem.hs	24;"	C
+RemoteScreenSF	src/Dodge/Data/ComposedItem.hs	50;"	C
 RemoveEquipment	src/Dodge/Data/RightButtonOptions.hs	36;"	C
 RemoveShieldWall	src/Dodge/Data/Item/Effect.hs	27;"	C
 Remove_LOS	src/Dodge/Data/Config.hs	77;"	C
@@ -1674,7 +1675,7 @@ RoundedFaces	src/Shape/Data.hs	18;"	C
 RunPast	src/Dodge/Room/RunPast.hs	1;"	m
 RunningSideEffect	src/Dodge/Data/Universe.hs	69;"	C
 SCRAPMETAL	src/Dodge/Data/Item/Combine.hs	61;"	C
-SFLink	src/Dodge/Data/ComposedItem.hs	32;"	C
+SFLink	src/Dodge/Data/ComposedItem.hs	34;"	C
 SHATTERGUN	src/Dodge/Data/Item/Combine.hs	174;"	C
 SHELLMAG	src/Dodge/Data/Item/Combine.hs	109;"	C
 SHELLPAYLOAD	src/Dodge/Data/Item/Combine.hs	102;"	C
@@ -1801,8 +1802,8 @@ SkiffBaySS	src/Dodge/Data/Scenario.hs	108;"	C
 SleepingQuatersSS	src/Dodge/Data/Scenario.hs	90;"	C
 Small	src/Shape/Data.hs	31;"	C
 Smoke	src/Dodge/Data/Cloud.hs	23;"	C
-SmokeReducerLink	src/Dodge/Data/ComposedItem.hs	24;"	C
-SmokeReducerSF	src/Dodge/Data/ComposedItem.hs	51;"	C
+SmokeReducerLink	src/Dodge/Data/ComposedItem.hs	26;"	C
+SmokeReducerSF	src/Dodge/Data/ComposedItem.hs	53;"	C
 SmoothScroll	src/Dodge/SmoothScroll.hs	1;"	m
 SocialUpheaval	src/Dodge/Data/Scenario.hs	27;"	C
 SolarGovernment	src/Dodge/Data/Scenario.hs	53;"	C
@@ -2002,7 +2003,7 @@ ToStop	src/Sound/Data.hs	28;"	C
 Toggle	src/Dodge/Data/Universe.hs	103;"	C
 Toggle2	src/Dodge/Data/Universe.hs	107;"	C
 ToggleExamine	src/Dodge/ToggleExamine.hs	1;"	m
-ToggleSF	src/Dodge/Data/ComposedItem.hs	61;"	C
+ToggleSF	src/Dodge/Data/ComposedItem.hs	63;"	C
 TopDT	src/Dodge/Data/DoubleTree.hs	85;"	C
 TopDecoration	src/Dodge/Placement/TopDecoration.hs	1;"	m
 TopEscapeMenuOption	src/Dodge/Data/Universe.hs	78;"	C
@@ -2020,8 +2021,8 @@ TreeHelp	src/TreeHelp.hs	12;"	m
 Triangulate	src/Geometry/Triangulate.hs	3;"	m
 Trie	src/SimpleTrie.hs	9;"	t
 TriggerDoor	src/Dodge/Placement/PlaceSpot/TriggerDoor.hs	1;"	m
-TriggerLink	src/Dodge/Data/ComposedItem.hs	14;"	C
-TriggerSF	src/Dodge/Data/ComposedItem.hs	45;"	C
+TriggerLink	src/Dodge/Data/ComposedItem.hs	16;"	C
+TriggerSF	src/Dodge/Data/ComposedItem.hs	47;"	C
 TriggerType	src/Dodge/Data/TriggerType.hs	9;"	t
 TriggerType	src/Dodge/Data/TriggerType.hs	4;"	m
 TriggerType	src/Dodge/Item/TriggerType.hs	1;"	m
@@ -2047,10 +2048,10 @@ Type	src/Dodge/Terminal/Type.hs	1;"	m
 Typical	src/Shape/Data.hs	36;"	C
 UNDERBARRELSLOT	src/Dodge/Data/Item/Combine.hs	98;"	C
 UNIGATE	src/Dodge/Data/Item/Combine.hs	31;"	C
-UnderBarrelPlatformLink	src/Dodge/Data/ComposedItem.hs	30;"	C
-UnderBarrelPlatformSF	src/Dodge/Data/ComposedItem.hs	39;"	C
-UnderBarrelSlotLink	src/Dodge/Data/ComposedItem.hs	29;"	C
-UnderBarrelSlotSF	src/Dodge/Data/ComposedItem.hs	38;"	C
+UnderBarrelPlatformLink	src/Dodge/Data/ComposedItem.hs	32;"	C
+UnderBarrelPlatformSF	src/Dodge/Data/ComposedItem.hs	41;"	C
+UnderBarrelSlotLink	src/Dodge/Data/ComposedItem.hs	31;"	C
+UnderBarrelSlotSF	src/Dodge/Data/ComposedItem.hs	40;"	C
 UnderGround	src/Dodge/Data/Scenario.hs	78;"	C
 UnderRoof	src/Dodge/Data/Scenario.hs	79;"	C
 UnderSea	src/Dodge/Data/Scenario.hs	77;"	C
@@ -2058,7 +2059,7 @@ UniRandFloat	src/Dodge/Data/GenFloat.hs	12;"	C
 Unimportant	src/Shape/Data.hs	37;"	C
 Universe	src/Dodge/Data/Universe.hs	31;"	t
 Universe	src/Dodge/Data/Universe.hs	6;"	m
-UnloadedWeaponSF	src/Dodge/Data/ComposedItem.hs	36;"	C
+UnloadedWeaponSF	src/Dodge/Data/ComposedItem.hs	38;"	C
 UnlockInv	src/Dodge/Data/WorldEffect.hs	27;"	C
 UnusedLink	src/Dodge/Data/Room.hs	65;"	C
 Update	src/Dodge/Config/Update.hs	4;"	m
@@ -2195,10 +2196,10 @@ WdWdBurstFireRepetition	src/Dodge/Data/WorldEffect.hs	35;"	C
 WdWdNegateTrig	src/Dodge/Data/WorldEffect.hs	31;"	C
 WdYouPos	src/Dodge/Data/WorldEffect.hs	41;"	C
 Weapon	src/Dodge/Item/Weapon.hs	2;"	m
-WeaponScopeLink	src/Dodge/Data/ComposedItem.hs	19;"	C
-WeaponScopeSF	src/Dodge/Data/ComposedItem.hs	42;"	C
-WeaponTargetingLink	src/Dodge/Data/ComposedItem.hs	20;"	C
-WeaponTargetingSF	src/Dodge/Data/ComposedItem.hs	43;"	C
+WeaponScopeLink	src/Dodge/Data/ComposedItem.hs	21;"	C
+WeaponScopeSF	src/Dodge/Data/ComposedItem.hs	44;"	C
+WeaponTargetingLink	src/Dodge/Data/ComposedItem.hs	22;"	C
+WeaponTargetingSF	src/Dodge/Data/ComposedItem.hs	45;"	C
 Weapons	src/Dodge/Item/Held/Weapons.hs	1;"	m
 West	src/Dodge/Data/CardinalPoint.hs	7;"	C
 West8	src/Dodge/Data/CardinalPoint.hs	17;"	C
@@ -3035,7 +3036,7 @@ _sensorCoding	src/Dodge/Data/GenParams.hs	16;"	f
 _sentinelDir	src/Dodge/Data/ActionPlan.hs	199;"	f
 _sentinelPos	src/Dodge/Data/ActionPlan.hs	199;"	f
 _sfColor	src/Shape/Data.hs	44;"	f
-_sfLink	src/Dodge/Data/ComposedItem.hs	32;"	f
+_sfLink	src/Dodge/Data/ComposedItem.hs	34;"	f
 _sfShadowImportance	src/Shape/Data.hs	45;"	f
 _sfSize	src/Shape/Data.hs	46;"	f
 _sfType	src/Shape/Data.hs	42;"	f
@@ -3361,7 +3362,8 @@ airlockDoor	src/Dodge/Room/Airlock.hs	51;"	f
 airlockDoubleDoor	src/Dodge/Room/Airlock.hs	54;"	f
 airlockSimple	src/Dodge/Room/Airlock.hs	66;"	f
 airlockZ	src/Dodge/Room/Airlock.hs	91;"	f
-allInvLocs	src/Dodge/Item/Grammar.hs	253;"	f
+allInvLocs	src/Dodge/Item/Grammar.hs	261;"	f
+allInvLocs'	src/Dodge/Item/Grammar.hs	282;"	f
 allVisibleWalls	src/Dodge/Base/Collide.hs	132;"	f
 alongSegBy	src/Geometry.hs	40;"	f
 alteRifle	src/Dodge/Item/Held/Cane.hs	22;"	f
@@ -3462,7 +3464,7 @@ barrel	src/Dodge/Creature/Inanimate.hs	17;"	f
 barrelShape	src/Dodge/Render/ShapePicture.hs	46;"	f
 baseAMRShape	src/Dodge/Item/Draw/SPic.hs	405;"	f
 baseBlockPane	src/Dodge/Placement/Instance/Wall.hs	86;"	f
-baseCI	src/Dodge/Item/Grammar.hs	159;"	f
+baseCI	src/Dodge/Item/Grammar.hs	161;"	f
 baseCaneShape	src/Dodge/Item/Draw/SPic.hs	311;"	f
 baseDebris	src/Dodge/Block/Debris.hs	122;"	f
 baseFloorTileSize	src/Tile.hs	45;"	f
@@ -4314,8 +4316,8 @@ extTrigLitPos	src/Dodge/Placement/Instance/Button.hs	84;"	f
 extendAway	src/Dodge/Placement/Instance/LightSource.hs	200;"	f
 extendConeToScreenEdge	src/Dodge/Debug/Picture.hs	82;"	f
 extraPics	src/Dodge/Render/ShapePicture.hs	73;"	f
-extraWeaponLinks	src/Dodge/Item/Grammar.hs	94;"	f
-extraWeaponLinksBelow	src/Dodge/Item/Grammar.hs	103;"	f
+extraWeaponLinks	src/Dodge/Item/Grammar.hs	96;"	f
+extraWeaponLinksBelow	src/Dodge/Item/Grammar.hs	105;"	f
 extractRoomPos	src/Dodge/RoomPos.hs	6;"	f
 faceEdges	src/Polyhedra.hs	65;"	f
 facesToVF	src/Polyhedra/Geodesic.hs	69;"	f
@@ -4434,11 +4436,11 @@ geometryTests	test/Spec.hs	17;"	f
 geometryUnitTests	test/Spec.hs	22;"	f
 geqConstr	src/SameConstr.hs	21;"	f
 getAimZoom	src/Dodge/Update/Camera.hs	135;"	f
-getAmmoLinks	src/Dodge/Item/Grammar.hs	110;"	f
+getAmmoLinks	src/Dodge/Item/Grammar.hs	112;"	f
 getArguments	src/Dodge/Update/Scroll.hs	178;"	f
 getArguments'	src/Dodge/Update/Scroll.hs	166;"	f
 getAttachedSFLink	src/Dodge/HeldUse.hs	811;"	f
-getAutoSpringLinks	src/Dodge/Item/Grammar.hs	89;"	f
+getAutoSpringLinks	src/Dodge/Item/Grammar.hs	91;"	f
 getAvailableListLines	src/Dodge/SelectionList.hs	10;"	f
 getBulHitDams	src/Dodge/Bullet.hs	171;"	f
 getBulletType	src/Dodge/HeldUse.hs	930;"	f
@@ -4655,16 +4657,17 @@ interweave	src/Justify.hs	17;"	f
 introScan	src/Dodge/Item/Scope.hs	57;"	f
 introScanValue	src/Dodge/Inventory/SelectionList.hs	79;"	f
 intsToPos	src/Dodge/Room/Modify/Girder.hs	160;"	f
-invAdj	src/Dodge/Item/Grammar.hs	236;"	f
+invAdj	src/Dodge/Item/Grammar.hs	238;"	f
 invCursorParams	src/Dodge/ListDisplayParams.hs	36;"	f
 invDP	src/Dodge/ListDisplayParams.hs	30;"	f
 invDimColor	src/Dodge/DisplayInventory.hs	192;"	f
 invHead	src/Dodge/Render/HUD.hs	405;"	f
 invItemLocUpdate	src/Dodge/Creature/State.hs	156;"	f
-invLDT	src/Dodge/Item/Grammar.hs	216;"	f
+invLDT	src/Dodge/Item/Grammar.hs	218;"	f
 invRootItemEffs	src/Dodge/Creature/State.hs	149;"	f
-invRootMap	src/Dodge/Item/Grammar.hs	225;"	f
-invRootTrees	src/Dodge/Item/Grammar.hs	246;"	f
+invRootMap	src/Dodge/Item/Grammar.hs	227;"	f
+invRootTrees	src/Dodge/Item/Grammar.hs	248;"	f
+invRootTrees'	src/Dodge/Item/Grammar.hs	254;"	f
 invSelectionItem	src/Dodge/Inventory/SelectionList.hs	32;"	f
 invSetSelection	src/Dodge/Inventory.hs	185;"	f
 invSetSelectionPos	src/Dodge/Inventory.hs	193;"	f
@@ -4743,8 +4746,8 @@ itemScrollDisplay	src/Dodge/Inventory/SelectionList.hs	120;"	f
 itemScrollValue	src/Dodge/Inventory/SelectionList.hs	147;"	f
 itemSidePush	src/Dodge/HeldUse.hs	433;"	f
 itemString	src/Dodge/Item/Display.hs	55;"	f
-itemToBreakLists	src/Dodge/Item/Grammar.hs	34;"	f
-itemToFunction	src/Dodge/Item/Grammar.hs	116;"	f
+itemToBreakLists	src/Dodge/Item/Grammar.hs	36;"	f
+itemToFunction	src/Dodge/Item/Grammar.hs	118;"	f
 itemTreeSPic	src/Dodge/Item/Draw/SPic.hs	24;"	f
 itemTriggerType	src/Dodge/BaseTriggerType.hs	12;"	f
 itemWeight	src/Dodge/Creature/Statistics.hs	66;"	f
@@ -4756,7 +4759,7 @@ itmSpaceInfo	src/Dodge/Item/Info.hs	25;"	f
 itmUsageInfo	src/Dodge/Item/Info.hs	230;"	f
 jShape	src/Dodge/Placement/Instance/LightSource.hs	85;"	f
 jaggedShape	src/Dodge/Block/Debris.hs	191;"	f
-joinItemsInList	src/Dodge/Item/Grammar.hs	206;"	f
+joinItemsInList	src/Dodge/Item/Grammar.hs	208;"	f
 joystick	src/Dodge/Item/Scope.hs	149;"	f
 jps0'	src/Dodge/LevelGen/PlacementHelper.hs	60;"	f
 jps0PushPS	src/Dodge/LevelGen/PlacementHelper.hs	63;"	f
@@ -4806,10 +4809,10 @@ ldtToIM	src/Dodge/DoubleTree.hs	184;"	f
 ldtToIndentList	src/Dodge/DoubleTree.hs	187;"	f
 ldtToLoc	src/Dodge/DoubleTree.hs	233;"	f
 left	src/DoubleStack.hs	16;"	f
-leftChildList	src/Dodge/Item/Grammar.hs	180;"	f
-leftIsParentCombine	src/Dodge/Item/Grammar.hs	164;"	f
+leftChildList	src/Dodge/Item/Grammar.hs	182;"	f
+leftIsParentCombine	src/Dodge/Item/Grammar.hs	166;"	f
 leftPad	src/Padding.hs	15;"	f
-leftRightCombine	src/Dodge/Item/Grammar.hs	192;"	f
+leftRightCombine	src/Dodge/Item/Grammar.hs	194;"	f
 legsSPic	src/Dodge/Item/Draw/SPic.hs	475;"	f
 liShape	src/Dodge/Placement/Instance/LightSource.hs	98;"	f
 light	src/Color.hs	104;"	f
@@ -5156,11 +5159,11 @@ orderAroundFirst	src/Geometry/Polygon.hs	82;"	f
 orderAroundFirstReverse	src/Geometry/Polygon.hs	78;"	f
 orderPolygon	src/Geometry/Polygon.hs	87;"	f
 orderPolygonAround	src/Geometry/Polygon.hs	70;"	f
-orientAttachment	src/Dodge/Item/Orientation.hs	30;"	f
-orientByLink	src/Dodge/Item/Orientation.hs	23;"	f
-orientChild	src/Dodge/Item/Orientation.hs	15;"	f
-orientLocation	src/Dodge/Item/Orientation.hs	51;"	f
-orientLocation'	src/Dodge/Item/Orientation.hs	40;"	f
+orientAttachment	src/Dodge/Item/Orientation.hs	31;"	f
+orientByLink	src/Dodge/Item/Orientation.hs	24;"	f
+orientChild	src/Dodge/Item/Orientation.hs	16;"	f
+orientLocation	src/Dodge/Item/Orientation.hs	52;"	f
+orientLocation'	src/Dodge/Item/Orientation.hs	41;"	f
 orthogonalPointOnSeg	src/Geometry/Intersect.hs	291;"	f
 outLink	src/Dodge/RoomLink.hs	105;"	f
 outsideScreenPolygon	src/Dodge/Debug/Picture.hs	44;"	f
@@ -5380,7 +5383,7 @@ propSPic	src/Dodge/Prop/Draw.hs	15;"	f
 propSetToggleAnd	src/Dodge/Prop/Update.hs	41;"	f
 propUpdateIf	src/Dodge/Prop/Update.hs	25;"	f
 propUpdatePosition	src/Dodge/Prop/Update.hs	30;"	f
-propagateOrientation	src/Dodge/Item/Orientation.hs	60;"	f
+propagateOrientation	src/Dodge/Item/Orientation.hs	61;"	f
 ps0	src/Dodge/LevelGen/PlacementHelper.hs	51;"	f
 ps0PushPS	src/Dodge/LevelGen/PlacementHelper.hs	79;"	f
 ps0PushPSw	src/Dodge/LevelGen/PlacementHelper.hs	83;"	f
@@ -5547,8 +5550,8 @@ rezText'	src/Dodge/Story.hs	17;"	f
 rhombus	src/Polyhedra.hs	72;"	f
 rifle	src/Dodge/Item/Held/Cane.hs	19;"	f
 right	src/DoubleStack.hs	16;"	f
-rightChildList	src/Dodge/Item/Grammar.hs	186;"	f
-rightIsParentCombine	src/Dodge/Item/Grammar.hs	172;"	f
+rightChildList	src/Dodge/Item/Grammar.hs	188;"	f
+rightIsParentCombine	src/Dodge/Item/Grammar.hs	174;"	f
 rightPad	src/Padding.hs	19;"	f
 rightPadNoSquash	src/Padding.hs	23;"	f
 rlPosDir	src/Dodge/RoomLink.hs	94;"	f
@@ -5952,7 +5955,7 @@ strideRot	src/Dodge/Item/HeldOffset.hs	83;"	f
 stringToList	src/Picture/Base.hs	313;"	f
 stringToListGrad	src/Picture/Text.hs	12;"	f
 stripZ	src/Geometry/Vector3D.hs	97;"	f
-structureToPotentialFunction	src/Dodge/Item/Grammar.hs	151;"	f
+structureToPotentialFunction	src/Dodge/Item/Grammar.hs	153;"	f
 structureUseAtLoc	src/Dodge/Creature/Impulse/UseItem.hs	75;"	f
 subInvX	src/Dodge/ListDisplayParams.hs	48;"	f
 subMap	src/TreeHelp.hs	118;"	f
@@ -6147,7 +6150,7 @@ triggerSwitchSPicLight	src/Dodge/Placement/Instance/Button.hs	31;"	f
 truncFaces	src/Polyhedra/Geodesic.hs	53;"	f
 truncate	src/Polyhedra/Geodesic.hs	38;"	f
 trunkDepth	src/TreeHelp.hs	161;"	f
-tryAttachItems	src/Dodge/Item/Grammar.hs	30;"	f
+tryAttachItems	src/Dodge/Item/Grammar.hs	32;"	f
 tryClickUse	src/Dodge/Creature/YourControl.hs	221;"	f
 tryCombine	src/Dodge/Update/Input/InGame.hs	526;"	f
 tryDropSelected	src/Dodge/Update/Input/InGame.hs	125;"	f