From de8052cef8a9f749cdb2312a4f5ae5f5a44cf1b8 Mon Sep 17 00:00:00 2001
From: Griffin Smith <root@gws.fyi>
Date: Sun, 6 Oct 2019 12:50:29 -0400
Subject: Allow eating edible items

Add menu support to the prompt system, and an "Eat" command that prompts
for an item to eat and eats the item the character specifies, restoring
an amount of hitpoints configurable via the item raw type.
---
 src/Xanthous/Entities/RawTypes.hs | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'src/Xanthous/Entities/RawTypes.hs')

diff --git a/src/Xanthous/Entities/RawTypes.hs b/src/Xanthous/Entities/RawTypes.hs
index 3fb89c58ba3b..f1f5e05f7aac 100644
--- a/src/Xanthous/Entities/RawTypes.hs
+++ b/src/Xanthous/Entities/RawTypes.hs
@@ -3,14 +3,20 @@
 --------------------------------------------------------------------------------
 module Xanthous.Entities.RawTypes
   ( CreatureType(..)
+  , EdibleItem(..)
   , ItemType(..)
+  , isEdible
   , EntityRaw(..)
 
+    -- * Lens classes
   , HasName(..)
   , HasDescription(..)
   , HasLongDescription(..)
   , HasMaxHitpoints(..)
   , HasFriendly(..)
+  , HasEatMessage(..)
+  , HasHitpointsHealed(..)
+  , HasEdible(..)
   , _Creature
   ) where
 --------------------------------------------------------------------------------
@@ -21,6 +27,7 @@ import Data.Aeson.Generic.DerivingVia
 import Data.Aeson (ToJSON, FromJSON)
 --------------------------------------------------------------------------------
 import Xanthous.Entities (EntityChar, HasChar(..))
+import Xanthous.Messages (Message(..))
 --------------------------------------------------------------------------------
 data CreatureType = CreatureType
   { _name :: Text
@@ -41,11 +48,26 @@ instance Arbitrary CreatureType where
 
 --------------------------------------------------------------------------------
 
+data EdibleItem = EdibleItem
+  { _hitpointsHealed :: Int
+  , _eatMessage :: Maybe Message
+  }
+  deriving stock (Show, Eq, Generic)
+  deriving anyclass (NFData, CoArbitrary, Function)
+  deriving (ToJSON, FromJSON)
+       via WithOptions '[ FieldLabelModifier '[Drop 1] ]
+                       EdibleItem
+makeFieldsNoPrefix ''EdibleItem
+
+instance Arbitrary EdibleItem where
+  arbitrary = genericArbitrary
+
 data ItemType = ItemType
-  { _name :: Text
-  , _description :: Text
+  { _name            :: Text
+  , _description     :: Text
   , _longDescription :: Text
-  , _char :: EntityChar
+  , _char            :: EntityChar
+  , _edible          :: Maybe EdibleItem
   }
   deriving stock (Show, Eq, Generic)
   deriving anyclass (NFData, CoArbitrary, Function)
@@ -57,6 +79,11 @@ makeFieldsNoPrefix ''ItemType
 instance Arbitrary ItemType where
   arbitrary = genericArbitrary
 
+isEdible :: ItemType -> Bool
+isEdible = has $ edible . _Just
+
+--------------------------------------------------------------------------------
+
 data EntityRaw
   = Creature CreatureType
   | Item ItemType
-- 
cgit 1.4.1