imj-base-0.1.0.2: src/Imj/Geo/Continuous/Types.hs

{-#  OPTIONS_HADDOCK hide #-}

{-# LANGUAGE NoImplicitPrelude #-}

module Imj.Geo.Continuous.Types
    ( Vec2(..)
    -- Reexports
    , Pos, Vel, Acc
    ) where

import           Imj.Prelude

import           Imj.Geo.Types

-- | Continuous 2d coordinates. We use phantom types 'Pos', 'Vel', 'Acc' to
-- distinguish between a position, a velocity, and an acceleration.
data Vec2 a = Vec2 {
    _vec2X :: {-# UNPACK #-} !Float
  , _vec2Y :: {-# UNPACK #-} !Float
} deriving(Eq, Show, Ord)