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witchcraft.clj
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(ns lambdaisland.witchcraft
"Clojure API for Minecraft/Bukkit"
(:refer-clojure :exclude [time bean chunk satisfies?])
(:require [clojure.java.io :as io]
[clojure.string :as str]
[clojure.set :as set]
[lambdaisland.witchcraft.events :as events]
[lambdaisland.witchcraft.safe-bean :refer [bean bean->]]
[lambdaisland.witchcraft.util :as util]
[lambdaisland.witchcraft.markup :as markup]
[lambdaisland.witchcraft.reflect :as reflect])
(:import (java.util UUID)
(com.cryptomorin.xseries XMaterial XBlock)
(org.bukkit Bukkit
Chunk
Difficulty
Location
Material
Server
World
WorldCreator)
(org.bukkit.block Block BlockFace)
;; (org.bukkit.block.data BlockData) ; not yet available in Glowstone 1.12
(org.bukkit.configuration.serialization ConfigurationSerialization)
(org.bukkit.enchantments Enchantment)
(org.bukkit.entity Entity Player HumanEntity LivingEntity)
(org.bukkit.inventory ItemStack Inventory)
(org.bukkit.inventory.meta ItemMeta)
(org.bukkit.material MaterialData Directional)
(org.bukkit.plugin PluginManager Plugin)
(org.bukkit.potion Potion PotionEffectType)
(org.bukkit.scheduler BukkitScheduler)
(org.bukkit.util Vector)))
(set! *warn-on-reflection* true)
(def satisfies-cache (volatile! {}))
(defn satisfies?
"Like clojure.core/satisfies?, but cache the result. We make heavy use of
satisfies, and this is not very well optimized in core."
[protocol x]
(let [klazz (class x)
iface (:on-interface protocol)]
(if-some [i (get-in @satisfies-cache [iface klazz])]
(boolean i)
(let [i (boolean (find-protocol-impl protocol x))]
(vswap! satisfies-cache assoc-in [iface klazz] i)
i))))
(defonce server-type nil)
(def ^:dynamic *default-world* nil)
(defn pre-flattening? []
(not (XMaterial/supports 13)))
(defn start-glowstone!
"Start an embedded Glowstone server
Optionally provided with a map of config options.
See [[lambdaisland.witchcraft.config/key-values]]"
[& args]
(alter-var-root #'server-type (constantly :glowstone))
(apply @(requiring-resolve 'lambdaisland.witchcraft.glowstone/start!) args))
(defn start-paper!
"Start an embedded PaperMC server"
[& [gui?]]
(alter-var-root #'server-type (constantly :paper))
(@(requiring-resolve 'lambdaisland.witchcraft.paper/start!) gui?))
(defn stop!
"Stop the embedded server"
[]
(case server-type
:glowstone
(@(requiring-resolve 'lambdaisland.witchcraft.glowstone/stop!))
:paper
(throw (ex-info "stop! not implemented for PaperMC" {}))))
(declare in-front-of map->Location)
(def ^Plugin plugin
"For the rare API calls that really want a plugin instance"
(proxy [org.bukkit.plugin.PluginBase] []
(getDescription []
(org.bukkit.plugin.PluginDescriptionFile. "Witchcraft" "0.0" ""))
(isEnabled []
true)
(getLogger []
(java.util.logging.Logger/getLogger "witchcraft"))))
(defonce undo-history (atom ()))
(defonce redo-history (atom ()))
;; FIXME: these don't actually work the way I inteneded them to work, might
;; require a custom set implementation.
(def EMPTY_BLOCK_SET
"Make sure there is only one block for each coordinate in the set, and keep them
sorted by x/z/y."
(sorted-set-by #(compare ((juxt :x :z :y) %1)
((juxt :x :z :y) %2))))
(defn block-set
"Create a block set, a set of maps where every :x/:y/:z value can only occur
once."
([coll]
(into EMPTY_BLOCK_SET coll))
([xform coll]
(into EMPTY_BLOCK_SET xform coll)))
;; ================================================================================
(defn enchantment-key [^Enchantment e]
;; FIXME: no getKey on Glowstone 1.12
(keyword
(-> e
.getKey
str
(str/replace #"^minecraft:" "")
(str/replace #"_" "-"))))
(def entity-types
"Map from keyword to EntityType value"
(util/enum->map org.bukkit.entity.EntityType))
(def enchant-types
"Map from keyword to Enchantment"
(into {}
(map (juxt enchantment-key identity))
(Enchantment/values)))
(def difficulty-types
"Map from keyword to Difficulty"
{:peaceful Difficulty/PEACEFUL
:easy Difficulty/EASY
:normal Difficulty/NORMAL
:hard Difficulty/HARD})
(util/when-class-exists
org.bukkit.GameRule
(def game-rule-types
"Map from keyword to GameRule"
(into {}
(map (juxt #(keyword (util/dasherize (.getName ^org.bukkit.GameRule %))) identity))
(org.bukkit.GameRule/values))))
(def game-modes
(util/enum->map org.bukkit.GameMode))
(def inventory-types
(util/enum->map org.bukkit.event.inventory.InventoryType))
(defonce ^{:doc "Map from keyword to XMaterial value"} materials {})
(defonce ^{:doc "Map from XMaterial value to keyword"} material-names {})
(def block-faces
"Map from keyword to BlockFace value"
(util/enum->map org.bukkit.block.BlockFace))
(def block-face-names
"Map from BlockFace value to keyword"
(into {} (map (juxt val key)) block-faces))
(def tree-species
"Map from keyword to TreeSpecies value"
(util/enum->map org.bukkit.TreeSpecies))
(def block-actions
"Map from keyword to block.Action value"
(util/enum->map org.bukkit.event.block.Action))
(defn server
"Get the currently active server."
^Server []
(Bukkit/getServer))
(defn plugin-manager
"Get the Bukkit plugin manager"
^PluginManager
[]
(Bukkit/getPluginManager))
(defn scheduler
"The Bukkit scheduler"
^BukkitScheduler
[]
(Bukkit/getScheduler))
;; =============================================================================
;; Functions for retrieving things from objects, like the location, x/y/z
;; values, world, etc. We also implement these for maps, where they do keyword
;; lookups. By using these in other functions we can accept a large range of
;; inputs, including both Glowstone/Bukkit objects and Clojure maps.
(defprotocol PolymorphicFunctions
;; Keep these classnames fully qualified, Clojure doesn't like it otherwise
;; when called from namespaces where these are not imported.
(-add [this that]
"Add locations, vectors, etc. That can also be a map of `:x`, `:y`, `:z`")
(^org.bukkit.util.Vector direction-vec [_])
(^org.bukkit.util.Vector as-vec [_] "Coerce to org.bukkit.util.Vector")
(material-data [_])
(with-xyz [_ xyz] "Return the same type, but with x/y/z updated")
(^org.bukkit.Chunk chunk [_] "Retrieve the chunk for a location, entity, etc.")
(entities [_] "Get the chunk's entities"))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Interop protocols
;;
;; These functions all start with a `-`, indicating they are just a low-level
;; proxy to an underlying interop form. See the `reflect/extend-signature` calls
;; lower down.
(defprotocol HasUUID
(^java.util.UUID -uuid [_]))
(defprotocol HasLocation
(^org.bukkit.Location -location [_] "Get the location of the given object"))
(defprotocol HasXYZ
(-x [_])
(-y [_])
(-z [_]))
(defprotocol HasPitchYaw
(-pitch [_])
(-yaw [_]))
(defprotocol HasWorld
(^org.bukkit.World -world [_] [_ _]))
(defprotocol HasWorlds
(^java.util.List -worlds [_])
(^org.bukkit.World -world-by-name [_ ^String _])
(^org.bukkit.World -world-by-uuid [_ ^UUID _]))
(defprotocol HasItemMeta
(^org.bukkit.inventory.meta.ItemMeta -item-meta [_])
(-set-item-meta [_ ^org.bukkit.inventory.meta.ItemMeta _]))
(defprotocol HasMaterial
(^org.bukkit.Material -material [_]))
(defprotocol HasDisplayName
(^String -display-name [_])
(-set-display-name [_ ^String _]))
(defprotocol CanRenderDisplayName
(-render-and-set-display-name [_ ^String _]))
(defprotocol HasLore
(^java.util.List -lore [_])
(-set-lore [_ _]))
(defprotocol HasTargetBlock
(^org.bukkit.Block -get-target-block [_ transparent max-distance]))
(defprotocol HasBlock
(^org.bukkit.block.Block -block [_]))
(defprotocol HasBlockData
(^org.bukkit.block.data.BlockData -get-block-data [_])
(-set-block-data [_ _]))
(defprotocol HasBlockState
(^org.bukkit.block.BlockState -block-state [_]))
(defprotocol HasCustomName
(^String -get-custom-name [_])
(-set-custom-name [_ ^String _]))
(defprotocol HasInventory
(^org.bukkit.inventory.Inventory -inventory [_]))
(defprotocol HasItemStack
(^org.bukkit.inventory.ItemStack -item-stack [_]))
(defprotocol HasEntity
(^org.bukkit.entity.Entity -entity [_]))
(defprotocol HasDifficulty
(-get-difficulty [_])
(-set-difficulty [_ d]))
(defprotocol HasPlayer
(-player [_]))
(defprotocol CanParseBlockData
(^org.bukkit.block.data.BlockData -parse-block-data [_ _]))
(defprotocol CanBreakNaturally (-break-naturally [_]))
(defprotocol CanBreakNaturallyTool (-break-naturally-tool [_ tool]))
(defprotocol CanBreakNaturallyEffect (-break-naturally-effect [_ effect]))
(defprotocol CanBreakNaturallyToolEffect (-break-naturally-tool-effect [_ tool effect?]))
(defprotocol CanSpawn (-spawn [thing location]))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Interop protocol implementations
(declare ^World default-world)
(reflect/extend-signatures HasUUID
"java.util.UUID getUniqueId()"
(-uuid [this] (.getUniqueId this))
"java.util.UUID uuid()"
(-uuid [this] (.uuid this))
"java.util.UUID id()"
(-uuid [this] (.id this))
"java.util.UUID getId()"
(-uuid [this] (.getId this))
"java.util.UUID getUID()"
(-uuid [this] (.getUID this))
"java.util.UUID getUUID()"
(-uuid [this] (.getUUID this)))
(reflect/extend-signatures HasLocation
"org.bukkit.Location getLocation()"
(-location [this]
(.getLocation this))
"org.bukkit.Location toLocation(org.bukkit.World)"
(-location [this]
(.toLocation this (default-world))))
(reflect/extend-signatures HasXYZ
"double getX()" (-x [this] (.getX this))
"double getY()" (-y [this] (.getY this))
"double getZ()" (-z [this] (.getZ this))
"int getX()" (-x [this] (.getX this))
"int getY()" (-y [this] (.getY this))
"int getZ()" (-z [this] (.getZ this)))
(reflect/extend-signatures HasPitchYaw
"float getPitch()" (-pitch [this] (.getPitch this))
"float getYaw()" (-yaw [this] (.getYaw this)))
;; Chunks only have x and z
(extend-protocol HasXYZ
org.bukkit.Chunk (-y [_] 0)
org.bukkit.ChunkSnapshot (-y [_] 0))
(reflect/extend-signatures HasWorld
"org.bukkit.World getWorld()"
(-world [this]
(.getWorld this)))
(reflect/extend-signatures HasWorlds
"java.util.List getWorlds()"
(-worlds [this]
(.getWorlds this))
"org.bukkit.World getWorld(java.lang.String)"
(-world-by-name [this ^String obj]
(.getWorld this obj))
"org.bukkit.World getWorld(java.util.UUID)"
(-world-by-uuid [this ^java.util.UUID obj]
(.getWorld this obj)))
(reflect/extend-signatures HasItemMeta
"org.bukkit.inventory.meta.ItemMeta getItemMeta()"
(-item-meta [this]
(.getItemMeta this))
"setItemMeta(org.bukkit.inventory.meta.ItemMeta)"
(-set-item-meta [this ^org.bukkit.inventory.meta.ItemMeta im]
(.setItemMeta this im)))
(reflect/extend-signatures HasDisplayName
"java.lang.String getDisplayName()"
(-display-name [this]
(.getDisplayName this))
"setDisplayName(java.lang.String)"
(-set-display-name [this ^String n]
(.setDisplayName this n)))
(reflect/extend-signatures CanRenderDisplayName
"displayName(net.kyori.adventure.text.Component)"
(-render-and-set-display-name [this ^String n]
;; This seems to be just a Paper thing
(.displayName this ((requiring-resolve 'lambdaisland.witchcraft.adventure.text/component) n))))
(reflect/extend-signatures HasLore
"java.util.List getLore()"
(-lore [this]
(.getLore this))
"setLore(java.util.List)"
(-set-lore [this lore]
(.setLore this lore)))
(reflect/extend-signatures HasTargetBlock
"org.bukkit.block.Block getTargetBlock(java.util.Set,int)"
(-get-target-block [this ^java.util.Set transparent ^long max-distance]
(.getTargetBlock this transparent max-distance)))
(reflect/extend-signatures HasBlock
"org.bukkit.block.Block getBlock()"
(-block [this]
(.getBlock this)))
(reflect/extend-signatures HasBlockState
"org.bukkit.block.BlockState getState()"
(-block-state [this]
(.getState this))
"org.bukkit.block.BlockState getBlockState()"
(-block-state [this]
(.getBlockState this)))
(reflect/extend-signatures HasCustomName
"java.lang.String getCustomName()"
(-get-custom-name [this]
(.getCustomName this))
"setCustomName(java.lang.String)"
(-set-custom-name [this name]
(.setCustomName this name)))
(util/when-class-exists org.bukkit.block.data.BlockData
(reflect/extend-signatures HasBlockData
"org.bukkit.block.data.BlockData getBlockData()"
(-get-block-data [this]
(.getBlockData this))
"void setBlockData(org.bukkit.block.data.BlockData)"
(-set-block-data [this ^org.bukkit.block.data.BlockData bd]
(.setBlockData this bd))))
(reflect/extend-signatures HasMaterial
"org.bukkit.Material getMaterial()"
(-material [this] (.getMaterial this))
"org.bukkit.Material getType()"
(-material [this] (.getType this)))
(reflect/extend-signatures HasEntity
"org.bukkit.entity.Entity getEntity()"
(-entity [this] (.getEntity this)))
(reflect/extend-signatures CanParseBlockData
"org.bukkit.block.data.BlockData createBlockData(java.lang.String)"
(-parse-block-data [this ^String string]
(.createBlockData this string)))
(reflect/extend-signatures HasInventory
"org.bukkit.inventory.Inventory getInventory()"
(-inventory [this]
(.getInventory this)))
(reflect/extend-signatures HasItemStack
"org.bukkit.inventory.ItemStack getItemStack()"
(-item-stack [this]
(.getItemStack this)))
(reflect/extend-signatures CanBreakNaturally
"boolean breakNaturally()"
(-break-naturally [this] (.breakNaturally this)))
(reflect/extend-signatures CanBreakNaturallyTool
"boolean breakNaturally(org.bukkit.inventory.ItemStack)"
(-break-naturally-tool [this ^ItemStack tool]
(.breakNaturally this tool)))
(reflect/extend-signatures CanBreakNaturallyEffect
"boolean breakNaturally(boolean)"
(-break-naturally-boolean [this ^Boolean effect]
(.breakNaturally this effect)))
(reflect/extend-signatures CanBreakNaturallyToolEffect
"boolean breakNaturally(org.bukkit.inventory.ItemStack,boolean)"
(-break-naturally-tool [this ^ItemStack tool ^Boolean effect]
(.breakNaturally this tool effect)))
(reflect/extend-signatures CanSpawn
"spawn(org.bukkit.Location)"
(-spawn [this loc] (.spawn this loc))
"spawnAt(org.bukkit.Location)"
(-spawn [this loc] (.spawnAt this loc)))
(reflect/extend-signatures HasDifficulty
"org.bukkit.Difficulty getDifficulty()"
(-get-difficulty [this] (.getDifficulty this))
"void setDifficulty(org.bukkit.Difficulty)"
(-set-difficulty [this d] (.setDifficulty this d)))
(reflect/extend-signatures HasPlayer
"org.bukkit.entity.Player getPlayer()"
(-player [this]
(.getPlayer this)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Interop wrappers
;;
;; Regular functions which delegate to interop protocols, but do some additional
;; type checks, coercion, or dealing with plain Clojure data along the way.
(declare ^Material material)
(declare ^clojure.lang.Keyword material-name)
(declare ^XMaterial xmaterial)
(declare ^Block get-block)
(declare ^clojure.lang.IPersistentMap block)
(declare ^World world)
(declare ^ItemStack item-stack)
(defn add
"Add multiple vector/location-like things together.
Returns a value with the same type of the first argument."
([this that]
(-add this that))
([this that & more]
(reduce -add (-add this that) more)))
;; The type hint here has the downside that for block locations we still get
;; floats, even though in that case they are ints.
(defn x ^double [o]
(cond
(vector? o)
(get o 0)
(map? o)
(:x o 0)
(satisfies? HasXYZ o)
(-x o)
(satisfies? HasLocation o)
(-x (-location o))
(satisfies? HasEntity o)
(-x (-location (-entity o)))))
(defn y ^double [o]
(cond
(vector? o)
(get o 1)
(map? o)
(:y o 0)
(satisfies? HasXYZ o)
(-y o)
(satisfies? HasLocation o)
(-y (-location o))
(satisfies? HasEntity o)
(-y (-location (-entity o)))))
(defn z ^double [o]
(cond
(vector? o)
(get o 2)
(map? o)
(:z o 0)
(satisfies? HasXYZ o)
(-z o)
(satisfies? HasLocation o)
(-z (-location o))
(satisfies? HasEntity o)
(-z (-location (-entity o)))))
(defn pitch ^double [o]
(cond
(vector? o)
(let [n (get o 3)]
(if (number? n)
n
0))
(map? o)
(:pitch o 0)
(satisfies? HasPitchYaw o)
(-pitch o)
(satisfies? HasLocation o)
(-pitch (-location o))
(satisfies? HasEntity o)
(-pitch (-location (-entity o)))))
(defn yaw ^double [o]
(cond
(vector? o)
(let [n (get o 4)]
(if (number? n)
n
0))
(map? o)
(:yaw o 0)
(satisfies? HasPitchYaw o)
(-yaw o)
(satisfies? HasLocation o)
(-yaw (-location o))
(satisfies? HasEntity o)
(-yaw (-location (-entity o)))
))
(defn location
"Get the location of the given object"
^Location [o]
(cond
(vector? o)
(let [[x y z yaw pitch world] o]
(map->Location (into {}
(remove (comp nil? val))
{:x x
:y y
:z z
:yaw (if (number? yaw) yaw 0)
:pitch (if (number? pitch) pitch 0)
:world world})))
(map? o)
(or (:location o)
(map->Location o))
(instance? Location o)
o
(satisfies? HasLocation o)
(-location o)
(satisfies? HasEntity o)
(-location (-entity o))
:else
(map->Location (into {}
(remove (comp nil? val))
{:x (x o)
:y (y o)
:z (z o)
:yaw (yaw o)
:pitch (pitch o)
:world (world o)}))))
(defn world
"Get the world associated with a given object, or look up a world by string or
UUID."
(^World [o]
(cond
(instance? World o)
o
(satisfies? HasWorld o)
(-world o)
(string? o)
(-world-by-name (server) o)
(instance? java.util.UUID o)
(-world-by-uuid (server) o)
:else
(-world (location o))))
(^World [o n]
(cond
(string? n)
(-world-by-name o n)
(instance? java.util.UUID n)
(-world-by-uuid o n))))
(defn worlds
"Get a list of all worlds on the server"
([]
(Bukkit/getWorlds))
([o]
(-worlds o)))
(defn entity
"Get an object's entity, or get entity by UUID."
[o]
(cond
(instance? Entity o)
o
(instance? UUID o)
(.getEntity (server) o)
(satisfies? HasEntity o)
(-entity o)))
(def
^{:doc "Render hiccup-like markup into a string with color and styling codes that Minecraft understand, see the [[lambdaisland.witchcraft.markup]] namespace for details."}
render-markup
markup/render)
(defn item-meta
"Get the ItemMeta for an item or compatible object, this object contains things
like the display name of the item, if it has been renamed."
^ItemMeta [o]
(cond
(instance? ItemMeta o)
o
(satisfies? HasItemMeta o)
(-item-meta o)))
(defn display-name
"Get the display-name for an item, itemstack, itemmeta, or nameable block or blockstate."
^String [o]
(cond
(satisfies? HasDisplayName o)
(-display-name o)
(satisfies? HasCustomName o)
(-get-custom-name o)
(satisfies? HasBlockState o)
(recur (-block-state o))
:else
(when-let [im (item-meta o)]
(-display-name im))))
(defn lore
"Get the lore for an item or compatible object."
[o]
(if (satisfies? HasLore o)
(-lore o)
(lore (item-meta o))))
(defn set-lore
"Set the lore on an item, itemstack, itemmeta. Takes a list (sequence) of
strings, or of markup vectors as per [[lambdaisland.witchcraft.markup/render]]."
[o lore]
(if (satisfies? HasLore o)
(-set-lore o (map #(markup/render [:reset %1]) lore))
(let [m (item-meta o)]
(-set-lore m (map #(markup/render [:reset %1]) lore))
(-set-item-meta o m))))
(defn set-display-name
"Set the display-name on an item, itemstack, itemmeta. Takes a list (sequence)
of strings, or of markup vectors as
per [[lambdaisland.witchcraft.markup/render]]."
[o name]
(cond
(satisfies? CanRenderDisplayName o)
(-render-and-set-display-name o name)
(satisfies? HasDisplayName o)
(-set-display-name o (markup/render name))
(satisfies? HasCustomName o)
(-set-custom-name o (markup/render name))
:else
(let [m (item-meta o)]
(-set-display-name m (markup/render name))
(-set-item-meta o m))))
(defn set-item-meta
"Set the ItemMeta for compatible objects, like an ItemStack. Either takes an
actual ItemMeta object, or a map with `:name` and/or `:lore` keys."
[o im]
(cond
(satisfies? HasItemMeta o)
(-set-item-meta o im)
(map? im)
;; TODO: we only handle a couple of keys here right now, we'd have to go
;; through all classes listed in
;; org.bukkit.craftbukkit.v1_18_R2.inventory.CraftMetaItem$SerializableMeta/deserialize,
;; and see what they do in their map-based constructor, then convert that to
;; individual setters, see repl-sessions.s2022-05-22 in cauldron for an
;; exploration.
(let [my-meta (item-meta o)]
(doseq [[k v] im]
(case k
:name (set-display-name my-meta v)
:lore (set-lore my-meta v)))
(set-item-meta o my-meta))))
(defn get-target-block
"Get the target block in the line of sight of the entity/player, as org.bukkit.block.Block"
(^org.bukkit.block.Block [entity]
(get-target-block entity #{:air}))
(^org.bukkit.block.Block [entity transparent]
(get-target-block entity transparent 20))
(^org.bukkit.block.Block [entity transparent max-distance]
(cond
(satisfies? HasTargetBlock entity)
(-get-target-block entity (into #{} (map material) transparent) max-distance))))
(defn target-block
"Get the target block in the line of sight of the entity/player, as a map"
[& args]
(block (apply get-target-block args)))
(util/if-class-exists org.bukkit.block.data.BlockData
(defn get-block-data
"Get the BlockData object of something"
^org.bukkit.block.data.BlockData
[b]
(cond
(instance? org.bukkit.block.data.BlockData b)
b
(satisfies? HasBlockData b)
(-get-block-data b)
(string? b)
(-parse-block-data (server) b)
:else
(-get-block-data (get-block b))))
(defn get-block-data [b]
(throw (ex-info "BlockData is not implemented on this server" {}))))
(util/if-class-exists org.bukkit.block.data.BlockData
(defn block-data
"Get the block data for the block as a map with `:material`, and other
material-specific key-values. This is kind of hacky in that we essentially
parse this out of the stringified version of the `BlockData`, but given the
immense parochialism in concrete `BlockData` subclasses we have little other
choice, and we can still reconstitute the `BlockData` by parsing it with
`Server/createBlockData`."
[b]
(let [bd (get-block-data b)
[_ _ attrs] (re-find #"^([^\[]*)\[(.*)\]"
(.getAsString bd))
result {:material (material-name bd)}]
(if attrs
(into result
(map (fn [s]
(let [[k v] (str/split s #"=")]
[(keyword k)
(cond
(= "true" v) true
(= "false" v) false
(re-find #"\d+" v) (Long/parseLong v)
(re-find #"\d+\.\d+" v) (Double/parseDouble v)
:else (keyword v))])))
(str/split attrs #","))
result)))
(defn block-data [b]
(throw (ex-info "BlockData is not implemented on this server" {}))))
(defn material
"Get the `org.bukkit.Material` for the given object.
- map: looks for a `:material` key
- vector: will look for a keyword in the fourth position
(so you can use `[x y z material]``)
- keyword: looks up the named material
- Objects that implement `getMaterial()` or `getType()`, use
the object method to get the material
- location-like things: pass on to `get-block` to get the
material at that location
"
^org.bukkit.Material [m]
(cond
(instance? Material m)
m
(satisfies? HasMaterial m)
(-material m)
(keyword? m)
(if-let [xm (xmaterial m)]
(.parseMaterial xm)
(throw (ex-info (str "Material not found: " m) {:material m
:known-materials
(count materials)})))
(map? m)
(material (:material m (location m)))
(vector? m)
(let [[_ _ _ m] m]
(when (keyword? m)
(material m)))
:else
(-material (get-block m))))
(defn mat
"Get the material name of something, as a keyword."
[m]
(cond
(keyword? m)
m
(and (map? m) (keyword? (:material m)))
(:material m)
(vector? m)
(when (and (<= 3 (count m)) (keyword? (get m 3)))
(get m 3))
(instance? XMaterial m)
(get material-names m)
:else
(when-let [xm (xmaterial m)]
(mat xm))))
(defn material-name
"Get the material name of something, as a keyword. Alias for [[mat]]."
[m]
(mat m))
(defn get-inventory
"Get the org.bukkit.inventory.Inventory for the given object/entity. Works for
players, blocks (e.g. chests), itemstacks (e.g. shulker box in inventory),
etc."
^org.bukkit.inventory.Inventory [o]
(cond
(instance? org.bukkit.inventory.Inventory o)
o
(satisfies? HasInventory o)
(-inventory o)
(satisfies? HasBlockState o)
(-inventory (-block-state o))
(satisfies? HasEntity o)
(-inventory (-entity o))
(satisfies? HasItemMeta o)
(-inventory (-block-state (-item-meta o)))))
(defn contents
"Get the contents of the inventory of something as a sequence of maps."
[o]
(let [inv (get-inventory o)]
(->> (for [^ItemStack stack (reverse inv)]
(when stack
(let [im (.getItemMeta stack)
dn (.getDisplayName im)
lore (.getLore im)
itemflags (.getItemFlags im)
localized (.getLocalizedName im)
enchants (.getEnchants im)]
(cond-> (into {:material (mat stack)
:amount (.getAmount stack)}
(map (juxt (comp keyword key) val))
;; Leverage ConfigurationSerializable to get extra
;; keys, but we don't currently deserialize these
(.serialize im))
(not= "" dn) (assoc :display-name dn)
(not= "" localized) (assoc :localized-display-name localized)
(seq lore) (assoc :lore (seq lore))
(seq itemflags) (assoc :item-flags itemflags)
(seq enchants) (assoc :enchants
(into {}
(map (fn [[^Enchantment k v]]
[(enchantment-key k) v]))
enchants))))))
(drop-while nil?)
reverse
vec)))
(defn inventory-type
"Get the type of an inventory object, or of something that has an
inventory (like a player or chest entity) as a keyword."
[i]
(get
(set/map-invert inventory-types)
(.getType (get-inventory i))))
(defn inventory
"Get a Clojure/EDN representation of an inventory (or of something that has an
inventory). Has `:type` and `:contents` keys, and `:size` for chest type
inventories (others have a fixed size)."
[i]
(let [i (get-inventory i)
type (inventory-type i)
#_#_title (.getName i)]
(cond->
{:type type
:contents (contents i)}
(= :chest type)
(assoc :size (.getSize i))
#_#_title
(assoc :title title))))
(defn set-contents
"Set inventory contents on an inventory or something that has an inventory."
[inv items]
(.setContents (get-inventory inv)
(into-array ItemStack (map item-stack items))))
(defn make-inventory
"Make a new Bukkit inventory object, with either `:type` (keyword) or
`:size` (must be multiple of 9), and optional `:owner` and/or `:title`."
[{:keys [^org.bukkit.inventory.InventoryHolder owner type size ^String title contents]
:or {size 27}}]
(let [inv
(cond
(and type title)
(org.bukkit.Bukkit/createInventory owner ^org.bukkit.event.inventory.InventoryType (get inventory-types type) title)
type
(org.bukkit.Bukkit/createInventory owner ^org.bukkit.event.inventory.InventoryType (get inventory-types type))
title
(org.bukkit.Bukkit/createInventory owner ^long size title)