{-|
Module      : Asteroid
Description : Defines the asteroid game object
Copyright   : (c) Christopher Howard, 2016
License     : GPL-3
Maintainer  : ch.howard@zoho.com
-}

module Asteroid where

import Prelude (const)
import Graphics.Gloss.Data.Picture ()
import Graphics.Gloss.Data.Color ()
import Data.WrapAround (WP, WM)

import Animation
import Updating
import Moving ( Locatable, Colliding(collisionRadius), Moving, newLocation' )
import qualified Moving as M ( Moving(..), Locatable(..) )
import ResourceTracker
import Combat
import SpaceJunk
import Common

radius = 15.0

damage = 100.0

data Asteroid = Asteroid { center :: WP
                         , velocity :: Velocity
                         , wmap :: WM
                         , rt :: RT
                         }

new :: ResourceTracker -> WM -> WP -> Velocity -> Asteroid
new a b c d = Asteroid { center = c
                       , velocity = d
                       , wmap = b
                       , rt = a
                       }

instance Animation Asteroid where
  image self _ = protectedGetImage (rt self) "asteroid.bmp"

instance Locatable Asteroid where
  center = Asteroid.center

instance Moving Asteroid where
  velocity = Asteroid.velocity

instance Colliding Asteroid where
  collisionRadius _ = radius

instance InternallyUpdating Asteroid where

  preUpdate s _ = s

  postUpdate s t = s { center = newLocation' s (wmap s) t }

instance Damageable Asteroid where

  inflictDamage = const

instance Damaging Asteroid where

  damageEnergy _ = damage