module Anims where

import Basics
import Objects
import Vectors
import Camera 
import World 
import Control.Applicative

sequ :: [Anim a] -> Anim [a]
sequ (x:xs) t = x t : sequ xs t
sequ [] t = []

type Anim a = Scal -> a


aObject :: Anim Shape -> Texture -> Int -> Anim Object
aObject shape color id time = Object id (shape time) (color)


aMeta l threshold t = Meta [f t | f <- l] (threshold t)

-- aMetaPoint = liftA2 MetaPoint

-- aPlane = liftA2 Plane

(|+|), (|-|), (|*|) :: Anim Scal -> Anim Scal -> Anim Scal
(|+|) = liftA2 (+)
(|-|) = liftA2 (-)
(|*|) = liftA2 (*)


-- aRowProd = liftA2 rowProd

orbit :: Anim Vector -> -- axis
	 Anim Vector -> -- starting point
	 Anim Vector

orbit axis point time = rotateMatrix time (normalized (axis time)) `mulVec` (point time)


liss :: Anim Vector -> Anim Vector -> Anim Vector -> Anim Vector
liss ampl freq phase time = ampl time `rowProd` liftV sin ((time `scale` freq time) + phase time)


ask :: Anim Scal
ask time = time