76 lines
2.9 KiB
Haskell
76 lines
2.9 KiB
Haskell
{-# LANGUAGE LambdaCase #-}
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--{-# LANGUAGE TupleSections #-}
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module Dodge.Creature.Impulse (followImpulse) where
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import Control.Monad.Trans.State.Lazy
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--import Control.Monad.State -- moving from mtl to transformers
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import Data.Maybe
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import Dodge.Creature.Impulse.Movement
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import Dodge.Creature.MoveType
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--import Dodge.Creature.Impulse.UseItem
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import Dodge.Creature.Vocalization
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import Dodge.CreatureEffect
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import Dodge.Data.World
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import Dodge.FloatFunction
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import Dodge.RandImpulse
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import Dodge.SoundLogic
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import Geometry
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import LensHelp
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import Linear
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import System.Random
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-- note SwitchToItem doesn't necessarily update the root item correctly
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followImpulse :: Int -> World -> Impulse -> World
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followImpulse cid w = \case
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ImpulseNothing -> w
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RandomImpulse rimp ->
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let (newimp, newgen) = runState (doRandImpulse rimp) (_randGen w)
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in randGen .~ newgen $ followImpulse cid w newimp
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Bark sid ->
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soundStart (CrMouth cid) cpos sid Nothing $
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w & clens %~ resetCrVocCoolDown w
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Move p -> crup $ crMvBy p (w ^. cWorld . lWorld)
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MoveForward x -> crup $ crMvForward x (w ^. cWorld . lWorld)
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MoveNoStride p -> crup $ crMvByNoStride p (w ^. cWorld . lWorld)
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Turn a -> crup $ crDir +~ a
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TurnToward p a -> crup $ creatureTurnToward p a
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TurnTo p -> crup $ creatureTurnTo p
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ChangePosture post -> crup $ crStance . posture .~ post
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UseItem -> undefined
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-- SwitchToItem i -> crup $ crManipulation . manObject .~ SelectedItem (NInt i) (NInt i) mempty
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Melee cid' ->
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hitCr cid' $
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crup
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( crMvAbsolute (w ^. cWorld . lWorld) (10 *.* normalizeV (posFromID cid' -.- cpos)) . (crType . meleeCooldown .~ 20)
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)
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RandomTurn a ->
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let (aa, g) = rr a
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in (randGen .~ g) (crup (crDir +~ aa))
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MakeSound sid -> soundStart (CrSound (_crID cr)) (cr ^. crPos . _xy) sid Nothing w
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DropItem -> undefined
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ChangeStrategy strat -> crup $ crActionPlan . apStrategy .~ strat
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AddGoal gl -> crup $ crActionPlan . apGoal .:~ gl
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ImpulseUseTarget f -> fromMaybe w $ do
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i <- cr ^? crIntention . targetCr . _Just
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tcr <- w ^? cWorld . lWorld . creatures . ix i
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return $ followImpulse cid w (doCrImp f tcr)
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MvForward -> crup $ crMvForward speed (w ^. cWorld . lWorld)
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MvTurnToward p ->
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crup $
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creatureTurnToward p (turnRad $ safeAngleVV (p -.- cpos) (unitVectorAtAngle cdir))
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where
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clens = cWorld . lWorld . creatures . ix cid
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cr = w ^?! cWorld . lWorld . creatures . ix cid
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crup f = over clens f w
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mvType = crMvType cr
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speed = _mvSpeed mvType
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turnRad = doFloatFloat $ _mvTurnRad mvType
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cpos = cr ^. crPos . _xy
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cdir = _crDir cr
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posFromID cid' = w ^?! cWorld . lWorld . creatures . ix cid' . crPos . _xy
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rr a = randomR (- a, a) $ _randGen w
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hitCr i =
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cWorld . lWorld . creatures . ix i . crDamage
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.:~ Blunt 100 (posFromID i) (posFromID i - cpos)
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