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Diffstat (limited to 'users/glittershark/xanthous/src/Xanthous/Data/Entities.hs')
-rw-r--r-- | users/glittershark/xanthous/src/Xanthous/Data/Entities.hs | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/users/glittershark/xanthous/src/Xanthous/Data/Entities.hs b/users/glittershark/xanthous/src/Xanthous/Data/Entities.hs new file mode 100644 index 000000000000..39953410f2f3 --- /dev/null +++ b/users/glittershark/xanthous/src/Xanthous/Data/Entities.hs @@ -0,0 +1,68 @@ +{-# LANGUAGE TemplateHaskell #-} +{-# LANGUAGE RecordWildCards #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.Entities + ( -- * Collisions + Collision(..) + , _Stop + , _Combat + -- * Entity Attributes + , EntityAttributes(..) + , blocksVision + , blocksObject + , collision + , defaultEntityAttributes + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +-------------------------------------------------------------------------------- +import Data.Aeson (ToJSON(..), FromJSON(..), (.:?), (.!=), withObject) +import Data.Aeson.Generic.DerivingVia +import Xanthous.Util.QuickCheck (GenericArbitrary(..)) +import Test.QuickCheck +-------------------------------------------------------------------------------- + +data Collision + = Stop -- ^ Can't move through this + | Combat -- ^ Moving into this equates to hitting it with a stick + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving Arbitrary via GenericArbitrary Collision + deriving (ToJSON, FromJSON) + via WithOptions '[ AllNullaryToStringTag 'True ] + Collision +makePrisms ''Collision + +-- | Attributes of an entity +data EntityAttributes = EntityAttributes + { _blocksVision :: Bool + -- | Does this entity block a large object from being put in the same tile as + -- it - eg a a door being closed on it + , _blocksObject :: Bool + -- | What type of collision happens when moving into this entity? + , _collision :: Collision + } + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving Arbitrary via GenericArbitrary EntityAttributes + deriving (ToJSON) + via WithOptions '[ FieldLabelModifier '[Drop 1] ] + EntityAttributes +makeLenses ''EntityAttributes + +instance FromJSON EntityAttributes where + parseJSON = withObject "EntityAttributes" $ \o -> do + _blocksVision <- o .:? "blocksVision" + .!= _blocksVision defaultEntityAttributes + _blocksObject <- o .:? "blocksObject" + .!= _blocksObject defaultEntityAttributes + _collision <- o .:? "collision" + .!= _collision defaultEntityAttributes + pure EntityAttributes {..} + +defaultEntityAttributes :: EntityAttributes +defaultEntityAttributes = EntityAttributes + { _blocksVision = False + , _blocksObject = False + , _collision = Stop + } |