85 lines
2.8 KiB
Haskell
85 lines
2.8 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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where
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import Dodge.Data
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import Dodge.Base
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import Dodge.WorldEvent.SpawnParticle
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import Dodge.WorldEvent.Flash
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import Dodge.RandomHelp
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import Dodge.SoundLogic
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import Dodge.SoundLogic.Synonyms
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import Dodge.WorldEvent.Shockwave
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import Geometry
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import Picture
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import Control.Monad.State
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import Data.List
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--import Data.Maybe
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import System.Random
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--import qualified Data.IntMap.Strict as IM
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import Control.Lens
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makePoisonExplosionAt
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:: Point2 -- ^ Position
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-> World
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-> World
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makePoisonExplosionAt p w = soundOncePos grenadeBang p $ foldr (makeGasCloud p) w vels
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where
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vels = 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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:: Point2 -- ^ Position
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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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:: Point2 -- ^ Position
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-> World
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-> World
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makeFlameExplosionAt p w = soundOncePos grenadeBang p $ over particles (newFlames ++ ) w
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where
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newFlames = zipWith makeFlameWithVelAndTime velocities timers
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makeFlameWithVelAndTime vel time = aFlameParticle time p vel Nothing
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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
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:: Point2 -- ^ Position
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-> World
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-> World
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makeExplosionAt p w
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= soundOncePos grenadeBang p
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. addFlames
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. explosionFlashAt p
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$ makeShockwaveAt [] p 50 10 1 white w
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where
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fVs = replicateM 75 (randInCirc 1) & evalState $ _randGen w
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fPs' = replicateM 75 (randInCirc 15) & evalState $ _randGen w
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fPs = map (pushAgainstWalls . (+.+) p . (*.*) 0.5) fPs'
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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 (2,6) $ _randGen w
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times = randomRs (20,25) $ _randGen w
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mF q v size time = makeFlameletTimed q v Nothing size time
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newFs = zipWith4 mF fPs (fmap (3 *.*) fVs') sizes times
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addFlames w' = foldr ($) w' newFs
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pushAgainstWalls q = maybe q (uncurry (+.+)) $ reflectPointWalls p q $ wallsNearPoint q w
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