diff options
Diffstat (limited to 'src/Xanthous/Data.hs')
| -rw-r--r-- | src/Xanthous/Data.hs | 173 |
1 files changed, 147 insertions, 26 deletions
diff --git a/src/Xanthous/Data.hs b/src/Xanthous/Data.hs index dfad2cffd392..8a8a62d0ee08 100644 --- a/src/Xanthous/Data.hs +++ b/src/Xanthous/Data.hs @@ -1,23 +1,27 @@ -{-# LANGUAGE PartialTypeSignatures #-} -{-# LANGUAGE StandaloneDeriving #-} -{-# LANGUAGE ViewPatterns #-} -{-# LANGUAGE RoleAnnotations #-} -{-# LANGUAGE RecordWildCards #-} -{-# LANGUAGE DeriveTraversable #-} -{-# LANGUAGE DeriveFoldable #-} -{-# LANGUAGE DeriveFunctor #-} -{-# LANGUAGE TemplateHaskell #-} -{-# LANGUAGE NoTypeSynonymInstances #-} +{-# LANGUAGE PartialTypeSignatures #-} +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE ViewPatterns #-} +{-# LANGUAGE RoleAnnotations #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE DeriveTraversable #-} +{-# LANGUAGE DeriveFoldable #-} +{-# LANGUAGE DeriveFunctor #-} +{-# LANGUAGE TemplateHaskell #-} +{-# LANGUAGE NoTypeSynonymInstances #-} +{-# LANGUAGE DuplicateRecordFields #-} -------------------------------------------------------------------------------- -- | Common data types for Xanthous -------------------------------------------------------------------------------- module Xanthous.Data - ( -- * - Position'(..) + ( Opposite(..) + + -- * + , Position'(..) , Position , x , y + -- ** , Positioned(..) , _Positioned , position @@ -30,6 +34,18 @@ module Xanthous.Data , stepTowards , isUnit + -- * Boxes + , Box(..) + , topLeftCorner + , bottomRightCorner + , setBottomRightCorner + , dimensions + , inBox + , boxIntersects + , boxCenter + , boxEdge + , module Linear.V2 + -- * , Per(..) , invertRate @@ -49,12 +65,16 @@ module Xanthous.Data -- * , Direction(..) - , opposite , move , asPosition , directionOf -- * + , Corner(..) + , Edge(..) + , cornerEdges + + -- * , Neighbors(..) , edges , neighborDirections @@ -65,6 +85,9 @@ module Xanthous.Data ) where -------------------------------------------------------------------------------- import Xanthous.Prelude hiding (Left, Down, Right, (.=)) +-------------------------------------------------------------------------------- +import Linear.V2 hiding (_x, _y) +import qualified Linear.V2 as L import Test.QuickCheck (Arbitrary, CoArbitrary, Function) import Test.QuickCheck.Arbitrary.Generic import Data.Group @@ -74,11 +97,18 @@ import Data.Aeson.Generic.DerivingVia import Data.Aeson ( ToJSON(..), FromJSON(..), object, (.=), (.:), withObject) -------------------------------------------------------------------------------- -import Xanthous.Util (EqEqProp(..), EqProp) +import Xanthous.Util (EqEqProp(..), EqProp, between) +import Xanthous.Util.QuickCheck (GenericArbitrary(..)) import Xanthous.Orphans () import Xanthous.Util.Graphics -------------------------------------------------------------------------------- +-- | opposite ∘ opposite ≡ id +class Opposite x where + opposite :: x -> x + +-------------------------------------------------------------------------------- + -- fromScalar ∘ scalar ≡ id class Scalar a where scalar :: a -> Double @@ -109,7 +139,10 @@ data Position' a where deriving (ToJSON, FromJSON) via WithOptions '[ FieldLabelModifier '[Drop 1] ] (Position' a) -makeLenses ''Position' + +x, y :: Lens' (Position' a) a +x = lens (\(Position xx _) -> xx) (\(Position _ yy) xx -> Position xx yy) +y = lens (\(Position _ yy) -> yy) (\(Position xx _) yy -> Position xx yy) type Position = Position' Int @@ -236,16 +269,16 @@ instance Arbitrary Direction where arbitrary = genericArbitrary shrink = genericShrink -opposite :: Direction -> Direction -opposite Up = Down -opposite Down = Up -opposite Left = Right -opposite Right = Left -opposite UpLeft = DownRight -opposite UpRight = DownLeft -opposite DownLeft = UpRight -opposite DownRight = UpLeft -opposite Here = Here +instance Opposite Direction where + opposite Up = Down + opposite Down = Up + opposite Left = Right + opposite Right = Left + opposite UpLeft = DownRight + opposite UpRight = DownLeft + opposite DownLeft = UpRight + opposite DownRight = UpLeft + opposite Here = Here move :: Direction -> Position -> Position move Up = y -~ 1 @@ -295,6 +328,40 @@ stepTowards (view _Position -> p₁) (view _Position -> p₂) -------------------------------------------------------------------------------- +data Corner + = TopLeft + | TopRight + | BottomLeft + | BottomRight + deriving stock (Show, Eq, Ord, Enum, Bounded, Generic) + +instance Opposite Corner where + opposite TopLeft = BottomRight + opposite TopRight = BottomLeft + opposite BottomLeft = TopRight + opposite BottomRight = TopLeft + +data Edge + = TopEdge + | LeftEdge + | RightEdge + | BottomEdge + deriving stock (Show, Eq, Ord, Enum, Bounded, Generic) + +instance Opposite Edge where + opposite TopEdge = BottomEdge + opposite BottomEdge = TopEdge + opposite LeftEdge = RightEdge + opposite RightEdge = LeftEdge + +cornerEdges :: Corner -> (Edge, Edge) +cornerEdges TopLeft = (TopEdge, LeftEdge) +cornerEdges TopRight = (TopEdge, RightEdge) +cornerEdges BottomLeft = (BottomEdge, LeftEdge) +cornerEdges BottomRight = (BottomEdge, RightEdge) + +-------------------------------------------------------------------------------- + data Neighbors a = Neighbors { _topLeft , _top @@ -307,7 +374,7 @@ data Neighbors a = Neighbors } deriving stock (Show, Eq, Ord, Functor, Foldable, Traversable, Generic) deriving anyclass (NFData) -makeLenses ''Neighbors +makeFieldsNoPrefix ''Neighbors instance Applicative Neighbors where pure α = Neighbors @@ -403,3 +470,57 @@ newtype Hitpoints = Hitpoints Word via Word deriving (Semigroup, Monoid) via Sum Word +-------------------------------------------------------------------------------- + +data Box a = Box + { _topLeftCorner :: V2 a + , _dimensions :: V2 a + } + deriving stock (Show, Eq, Ord, Functor, Generic) + deriving Arbitrary via GenericArbitrary (Box a) +makeFieldsNoPrefix ''Box + +bottomRightCorner :: Num a => Box a -> V2 a +bottomRightCorner box = + V2 (box ^. topLeftCorner . L._x + box ^. dimensions . L._x) + (box ^. topLeftCorner . L._y + box ^. dimensions . L._y) + +setBottomRightCorner :: (Num a, Ord a) => Box a -> V2 a -> Box a +setBottomRightCorner box br@(V2 brx bry) + | brx < box ^. topLeftCorner . L._x || bry < box ^. topLeftCorner . L._y + = box & topLeftCorner .~ br + & dimensions . L._x .~ ((box ^. topLeftCorner . L._x) - brx) + & dimensions . L._y .~ ((box ^. topLeftCorner . L._y) - bry) + | otherwise + = box & dimensions . L._x .~ (brx - (box ^. topLeftCorner . L._x)) + & dimensions . L._y .~ (bry - (box ^. topLeftCorner . L._y)) + +inBox :: (Ord a, Num a) => Box a -> V2 a -> Bool +inBox box pt = flip all [L._x, L._y] $ \component -> + between (box ^. topLeftCorner . component) + (box ^. to bottomRightCorner . component) + (pt ^. component) + +boxIntersects :: (Ord a, Num a) => Box a -> Box a -> Bool +boxIntersects box₁ box₂ + = any (inBox box₁) [box₂ ^. topLeftCorner, bottomRightCorner box₂] + +boxCenter :: (Fractional a) => Box a -> V2 a +boxCenter box = V2 cx cy + where + cx = box ^. topLeftCorner . L._x + (box ^. dimensions . L._x / 2) + cy = box ^. topLeftCorner . L._y + (box ^. dimensions . L._y / 2) + +boxEdge :: (Enum a, Num a) => Box a -> Edge -> [V2 a] +boxEdge box LeftEdge = + V2 (box ^. topLeftCorner . L._x) + <$> [box ^. topLeftCorner . L._y .. box ^. to bottomRightCorner . L._y] +boxEdge box RightEdge = + V2 (box ^. to bottomRightCorner . L._x) + <$> [box ^. to bottomRightCorner . L._y .. box ^. to bottomRightCorner . L._y] +boxEdge box TopEdge = + flip V2 (box ^. topLeftCorner . L._y) + <$> [box ^. topLeftCorner . L._x .. box ^. to bottomRightCorner . L._x] +boxEdge box BottomEdge = + flip V2 (box ^. to bottomRightCorner . L._y) + <$> [box ^. topLeftCorner . L._x .. box ^. to bottomRightCorner . L._x] |