module Dodge.Placement.Instance.Turret where
import Color
import Dodge.Data
--import Dodge.Reloading
import Dodge.Creature.State
import Dodge.Creature.Impulse
import Dodge.Creature.Picture
import Dodge.LevelGen.Data
import Dodge.Default
import Dodge.Movement.Turn
--import Dodge.Creature.Impulse.UseItem
import Dodge.FloorItem
import Dodge.Wall.Delete
import Dodge.WorldEvent.Explosion
import Dodge.Item.Weapon.BatteryGuns
--import Dodge.Item.Weapon.BulletGun.Cane
--import Dodge.SoundLogic.LoadSound
--import Dodge.SoundLogic
--import Dodge.Item.Draw
import Geometry
import ShapePicture
import Shape
import Dodge.Base
import Dodge.Base.Collide
import LensHelp
import qualified IntMapHelp as IM

import Data.List
import Data.Maybe

putLasTurret :: Float -> Placement
putLasTurret rotSpeed = sps0 $ PutMachine blue (reverse $ square wdth) defaultMachine
    { _mcDraw = drawTurret
    , _mcUpdate = updateTurret rotSpeed
    , _mcType = lasTurret
    , _mcHP = 50000
    }
lasTurret :: MachineType
lasTurret = Turret
    { _tuWeapon = lasGun
--    { _tuWeapon = autoRifle
    , _tuTurnSpeed = 0.1
    , _tuFireTime = 0
    , _tuMCrID = Nothing
    }

-- this needs a major cleanup
updateTurret :: Float -> Machine -> World -> World
updateTurret rotSpeed mc w 
    | _mcHP mc < 1 = w & machines %~ IM.delete mcid
        & deleteWallIDs (_mcWallIDs mc)
        & makeExplosionAt mcpos
        & copyItemToFloor mcpos lasGun
        & deleteHomonculus
    | otherwise = w 
        & initHomonculus
        & dodamage 
        & maybeFire 
        & elecDamBranch
  where
    deleteHomonculus = case _tuMCrID (_mcType mc) of
        Nothing -> id
        Just cid -> creatures . at cid .~ Nothing
    initHomonculus w' = case w' ^? machines . ix mcid . mcType . tuMCrID . _Just of
        Nothing -> w' & machines . ix mcid . mcType . tuMCrID ?~ cid
            & creatures . at cid ?~ thecreature
          where
            cid = IM.newKey (_creatures w')
            thecreature = defaultCreature
                & crID .~ cid
                & crInv . at 0 ?~ (_tuWeapon (_mcType mc) & itDimension . dimPortage . handlePos -~ 10
                    & itConsumption . ammoLoaded .~ 1
                    )
                & crPos .~ mcpos
                & crOldPos .~ mcpos
                & crRad    .~ 1
                & crDir .~ mcdir
                & crPict .~ (\cr _ _ -> drawCrEquipment cr)
                & crUpdate .~ stateUpdateDamage clearDamage (flip followThenClearImpulses)
                & crStance . posture .~ Aiming
        Just cid -> w'
            & creatures . ix cid . crPos .~ mcpos
            & creatures . ix cid . crDir .~ mcdir
    dodamage = machines . ix mcid %~ 
        ( (mcDamage .~ [Electrical (min 2500 $ max 0 (elecDam - 10)) 0 0 0])
        . (mcHP -~ dam)
        )
    elecDamBranch
        | elecDam < 10 = updateFiringStatus . doTurn
        | otherwise = id
    maybeFire
        | _tuFireTime (_mcType mc) > 0
            = fromMaybe id $ do
                cid <- _tuMCrID (_mcType mc)
                return $ creatures . ix cid . crActionPlan . crImpulse .~ [UseItem]
        | otherwise = id
    mcid = _mcID mc
    ypos = _crPos $ you w
    mcpos = _mcPos mc
    mcdir = _mcDir mc
    seesYou = hasLOSIndirect mcpos ypos w
    (elecDams, dams) = partition isElectrical $ _mcDamage mc
    dam = sum $ map _dmAmount dams
    elecDam = sum $ map _dmAmount elecDams
    doTurn  
        | seesYou = machines . ix mcid . mcDir %~ turnTo rotSpeed mcpos ypos
        | otherwise = id
    closeFireAngle = seesYou && angleVV (ypos -.- mcpos) (unitVectorAtAngle mcdir) < 1
    updateFiringStatus 
        | closeFireAngle = machines . ix mcid . mcType . tuFireTime .~ 20
        | otherwise      = machines . ix mcid . mcType . tuFireTime %~ (max 0 . subtract 1)
    

drawTurret :: Machine -> SPic
drawTurret mc = (rotateSH (-_mcDir mc) . colorSH blue $ upperPrismPoly 20 (square wdth)
    , mempty -- setLayer 5 $ scale 0.5 0.5 $ text $ show $ _mcDir mc )
    )
--    <> translateSPz 20 (itSPic it)
--  where
--    it = _tuWeapon $ _mcType mc

wdth :: Float
wdth = 10