blob: 351928ffde0948976e3e41e068d9dfa6c8a0c087 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
{-# LANGUAGE DeriveDataTypeable, PatternGuards #-}
module DefaultPlayer ( DefaultPlayer(..)
) where
import qualified Data.Set as S
import Data.Fixed
import Data.Ratio ((%))
import Data.Typeable
import GLDriver
import Player
import Tank
data DefaultPlayer = DefaultPlayer (S.Set Key)
deriving (Typeable, Show)
instance Player DefaultPlayer where
playerMovement (DefaultPlayer keys) _ = playerMovement' keys
handleEvent (DefaultPlayer keys) ev
| Just (KeyPressEvent key) <- fromEvent ev = DefaultPlayer $ S.insert key keys
| Just (KeyReleaseEvent key) <- fromEvent ev = DefaultPlayer $ S.delete key keys
| otherwise = DefaultPlayer keys
playerMovement' :: S.Set Key -> (DefaultPlayer, Maybe Micro, Bool)
playerMovement' keys = (DefaultPlayer keys, angle, move)
where
x = (if (S.member KeyLeft keys) then (-1) else 0) + (if (S.member KeyRight keys) then 1 else 0)
y = (if (S.member KeyDown keys) then (-1) else 0) + (if (S.member KeyUp keys) then 1 else 0)
move = (x /= 0 || y /= 0)
angle = if move then Just $ fromRational $ round ((atan2 y x)*1000000*180/pi)%1000000 else Nothing
|