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0aca2333e2* Remove redundant brackets * Various hlint fixes * Remove unused language pragrams and other fixes * Use addStatic more consistently in examples * Rename remaining usages of sceneAnimation to scene
70 lines
2 KiB
Haskell
Executable file
70 lines
2 KiB
Haskell
Executable file
#!/usr/bin/env stack
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-- stack runghc --package reanimate
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ParallelListComp #-}
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module Main(main) where
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import Codec.Picture
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import Codec.Picture.Types
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import Control.Lens ((&))
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import Control.Monad
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import Graphics.SvgTree (LineJoin (..))
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import Reanimate
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import Reanimate.Morph.Common
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import Reanimate.Morph.LeastWork
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import Reanimate.Morph.Linear
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bgColor :: PixelRGBA8
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bgColor = PixelRGBA8 252 252 252 0xFF
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main :: IO ()
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main = reanimate $
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addStatic (mkBackgroundPixel bgColor) $
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mapA (withStrokeWidth defaultStrokeWidth) $
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mapA (withStrokeColor "black") $
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mapA (withStrokeLineJoin JoinRound) $
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mapA (withFillOpacity 1) $
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scene $ do
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_ <- newSpriteSVG $
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withStrokeWidth 0 $ translate (-3) 4 $
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center $ latex "linear"
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_ <- newSpriteSVG $
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withStrokeWidth 0 $ translate 3 4 $
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center $ latex "least-work"
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forM_ pairs $ uncurry showPair
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where
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showPair from to =
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waitOn $ do
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fork $ play $ mkAnimation 4 (morph linear from to)
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& mapA (translate (-3) (-0.5))
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& signalA (curveS 4)
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fork $ play $ mkAnimation 4 (morph myMorph from to)
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& mapA (translate 3 (-0.5))
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& signalA (curveS 4)
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stretchCosts = defaultStretchCosts
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{ stretchStiffness = 2 }
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bendCosts = defaultBendCosts
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myMorph = linear{morphPointCorrespondence = leastWork stretchCosts bendCosts }
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pairs = zip stages (tail stages ++ [head stages])
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stages = map (lowerTransformations . scale 6 . pathify . center) $ colorize
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[ latex "X"
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, latex "$\\aleph$"
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, latex "Y"
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, latex "$\\infty$"
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, latex "I"
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, latex "$\\pi$"
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, latex "1"
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, latex "T"
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, latex "I"
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, latex "L"
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, latex "S"
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, mkRect 0.5 0.5
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]
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colorize :: [SVG] -> [SVG]
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colorize lst =
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[ withFillColorPixel (promotePixel $ parula (n/fromIntegral (length lst-1))) elt
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| elt <- lst
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| n <- [0..]
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]
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