90 lines
2.9 KiB
Haskell
90 lines
2.9 KiB
Haskell
{-
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Explosions: creation of shockwave and particles at a given point.
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-}
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module Dodge.WorldEvent.Explosion (
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makeExplosionAt,
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makeFlameExplosionAt,
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makePoisonExplosionAt,
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makeTeslaExplosionAt,
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) where
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import Control.Monad
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import Data.List
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import Dodge.Data.World
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import Dodge.EnergyBall
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import Dodge.SoundLogic
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import Dodge.WorldEvent.Shockwave
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import Dodge.WorldEvent.SpawnParticle
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import Geometry
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import LensHelp
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import Picture
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import RandomHelp
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makePoisonExplosionAt ::
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-- | Position
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Point2 ->
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World ->
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World
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makePoisonExplosionAt p w =
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soundMultiFrom [Explosion 0, Explosion 1] p bangS Nothing $
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foldl' (flip $ makeGasCloud p) w $
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replicateM 25 (randInCirc 2) & evalState $ _randGen w
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-- just change the number after replicateM to get more or less clouds
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-- suggested change: use random positions, offset from p, rather than velocities
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-- so, p +.+ randomOffset
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-- currently the clouds push away from each other rather hard if they are close
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makeTeslaExplosionAt ::
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-- | Position
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Point2 ->
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World ->
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World
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makeTeslaExplosionAt = undefined
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-- soundOncePos grenadeBang pos $ foldr ($) w listOfFunctions -- a bit shorter
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-- where
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-- xs = randomRs (0, 2*pi) $ _randGen w
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-- j = newProjectileKey w
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-- pks = [j..]
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-- listOfFunctions = map
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-- (\i -> over projectiles (IM.insert (pks!!i) (makeTeslaArcAt (pks!!i) pos (xs!!i))))
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-- [1 .. 29]
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makeFlameExplosionAt ::
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-- | Position
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Point2 ->
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World ->
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World
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makeFlameExplosionAt p w =
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soundMultiFrom [Explosion 0, Explosion 1] p bangS Nothing w
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& cWorld . lWorld . flames .++~ newFlames
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where
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newFlames = zipWith makeFlameWithVelAndTime velocities timers
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makeFlameWithVelAndTime vel time = Flame time vel p
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velocities = replicateM 15 (randInCirc 1) & evalState $ _randGen w
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timers = randomRs (80, 100) $ _randGen w
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-- the ( Nthing :: Maybe Int ) here is "maybe" a creature id that the
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-- particle passes through for the first frame of its existence
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makeExplosionAt :: Point2 -> Point2 -> World -> World
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makeExplosionAt p vel w =
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w
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& soundMultiFrom [Explosion 0, Explosion 1] p bangS Nothing
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& addFlames
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& cWorld . lWorld . worldEvents
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.:~ MakeTempLight (LSParam (addZ 20 p) 150 (V3 1 0.5 0)) 20
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& makeShockwaveAt [] p 50 50 1 white
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where
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fVs = replicateM 100 (randInCirc 1) & evalState $ _randGen w
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fPs' = replicateM 100 (randInCirc 5) & evalState $ _randGen w
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fdamps = replicateM 100 (state $ randomR (0,1)) & evalState $ _randGen w
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inversePushOut v = (15 - magV v) * 0.01 *.* v
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fVs' = zipWith (+.+) fVs $ map inversePushOut fPs'
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sizes = randomRs (2, 9) $ _randGen w
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times = randomRs (15, 20) $ _randGen w
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mF q v damp size time = makeFlamelet (q - (2*v + 2* vel)) (v + damp *.* vel) size time
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newFs = zipWith4 (mF p) (zipWith (+) fPs' (fmap (3 *.*) fVs')) fdamps sizes times
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addFlames w' = foldl' (flip ($)) w' newFs
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