Files
play-clj/src/play_clj/utils.clj
2014-01-15 15:31:02 -05:00

100 lines
2.0 KiB
Clojure

(ns play-clj.utils
(:require [clojure.string :as s])
(:import [com.badlogic.gdx.graphics.g2d TextureRegion]
[com.badlogic.gdx.scenes.scene2d Actor]
[com.badlogic.gdx.utils Array ArrayMap]))
; converting keys
(def ^:const main-package "com.badlogic.gdx")
(defn ^:private split-key
[key]
(-> key name (s/split #"-")))
(defn ^:private join-keys
[keys]
(->> keys (map name) (s/join ".") (str main-package ".")))
(defn key->upper
[key]
(->> (split-key key)
(map s/upper-case)
(s/join "_")))
(defn key->pascal
[key]
(->> (split-key key)
(map s/capitalize)
(s/join "")))
(defn key->camel
[key]
(let [parts (split-key key)]
(->> (rest parts)
(map s/capitalize)
(cons (first parts))
(s/join ""))))
(defn key->method
[key]
(symbol (str "." (key->camel key))))
(defn ^:private static-field
[args transform-fn]
(->> (transform-fn (last args))
(str (join-keys (butlast args)) "/")
symbol))
(defmacro static-field-lower
[& args]
`~(static-field args key->camel))
(defmacro static-field-upper
[& args]
`~(static-field args key->upper))
; data structures
(defn gdx-array
[arr]
(Array. true (into-array arr) 1 (count arr)))
(defn gdx-array-map
[hmap]
(let [amap (ArrayMap.)]
(doseq [[k v] hmap]
(.put amap k v))
amap))
; java interop
(defmacro call!
[obj k & args]
`(~(key->method k) ~obj ~@args))
(defn create-method-calls
[calls args]
(let [method-name (first args)
[my-args rest-args] (split-with #(not (keyword? %)) (rest args))]
(if method-name
(create-method-calls (conj calls `(~(key->method method-name) ~@my-args))
rest-args)
calls)))
(defmacro calls!
[obj & args]
`(doto ~obj ~@(create-method-calls [] args)))
; entities
(defmulti create-entity class)
(defmethod create-entity TextureRegion
[obj]
{:type :texture :object obj})
(defmethod create-entity Actor
[obj]
{:type :actor :object obj})