{-# LANGUAGE TupleSections #-}
module ShapePicture
    ( emptyBlank
    , translateSP
    , translateSPf
    , translateSPz
    , rotateSP
    , SPic
    , noPic
    , noShape
    , _spShape
    , _spPicture
    , mirrorSPyz
    , mirrorSPxz
    ) where
import Shape
import Picture
import Geometry

import Data.Bifunctor

type SPic =  (Shape, Picture)

-- should all this be inlined/inlinable?
noPic :: Shape -> SPic
noPic = (,mempty)

noShape :: Picture -> SPic
noShape = (mempty,)

_spShape :: SPic -> Shape
_spShape = fst
_spPicture :: SPic -> Picture
_spPicture = snd

emptyBlank :: SPic
emptyBlank = mempty

translateSPf :: Float -> Float -> SPic -> SPic
translateSPf x y = bimap (translateSH (V3 x y 0)) (translate x y)

translateSPz :: Float -> SPic -> SPic
translateSPz z  = bimap (translateSH (V3 0 0 z)) (translate3 (V3 0 0 z))

translateSP :: Point3 -> SPic -> SPic
translateSP v = bimap (translateSH v) (translate3 v)

rotateSP :: Float -> SPic -> SPic
rotateSP a = bimap (rotateSH a) (rotate a)

mirrorSPxz :: SPic -> SPic
mirrorSPxz = bimap (reverse . overPosSH flipy) mirrorxz
  where
    flipy (V3 x y z) = V3 x (negate y) z

mirrorSPyz :: SPic -> SPic
mirrorSPyz = bimap (reverse . overPosSH flipx) mirroryz
  where
    flipx (V3 x y z) = V3 (negate x) y z