Files
play-clj/src/play_clj/core.clj
2014-01-14 01:56:25 -05:00

110 lines
4.1 KiB
Clojure

(ns play-clj.core
(:require [clojure.set :as set]
[play-clj.ui :as ui]
[play-clj.utils :as u])
(:import [com.badlogic.gdx Application Audio Files Game Gdx Graphics Input
InputMultiplexer InputProcessor Net Screen]
[com.badlogic.gdx.graphics Camera Color GL20 OrthographicCamera
PerspectiveCamera Texture]
[com.badlogic.gdx.graphics.g2d Animation SpriteBatch TextureRegion]
[com.badlogic.gdx.input GestureDetector
GestureDetector$GestureListener]
[com.badlogic.gdx.maps MapLayer MapLayers]
[com.badlogic.gdx.maps.tiled TiledMap TiledMapTileLayer
TiledMapTileLayer$Cell TmxMapLoader]
[com.badlogic.gdx.maps.tiled.renderers
BatchTiledMapRenderer
HexagonalTiledMapRenderer
IsometricStaggeredTiledMapRenderer
IsometricTiledMapRenderer
OrthogonalTiledMapRenderer]
[com.badlogic.gdx.scenes.scene2d Actor Stage]))
(load "core_2d")
(load "core_global")
(load "core_render")
(defn ^:private reset-if-changed!
[e-atom e-old e-new]
(when (not= e-old e-new)
(compare-and-set! e-atom e-old e-new)))
(defn defscreen*
[{:keys [on-show on-render on-hide on-pause on-resize on-resume]
:as options}]
(let [screen (atom {})
entities (atom '())
_ (add-watch entities
:changed
(fn [_ _ _ new-entities]
(refresh-renderer! @screen new-entities)))
execute-fn! (fn [func & {:keys [] :as options}]
(when func
(let [old-entities @entities]
(some->> (func (merge @screen options) old-entities)
list
flatten
(remove nil?)
(reset-if-changed! entities old-entities)))))
listeners [(input-processor options execute-fn!)
(gesture-detector options execute-fn!)]
ui-listeners (ui/create-listeners options execute-fn!)
update-fn! #(swap! screen merge %)]
{:screen screen
:entities entities
:show (fn []
(swap! screen assoc
:total-time 0
:update-fn! update-fn!
:ui-listeners ui-listeners)
(execute-fn! on-show))
:render (fn [d]
(swap! screen #(assoc % :total-time (+ (:total-time %) d)))
(execute-fn! on-render :delta-time d))
:hide #(execute-fn! on-hide)
:pause #(execute-fn! on-pause)
:resize #(execute-fn! on-resize :width %1 :height %2)
:resume #(execute-fn! on-resume)
:listeners listeners}))
(defmacro defscreen
[n & {:keys [] :as options}]
`(let [fns# (->> (for [[k# v#] ~options]
[k# (intern *ns* (symbol (str '~n "-" (name k#))) v#)])
flatten
(apply hash-map))]
(defonce ~n (defscreen* fns#))))
(defn defgame*
[{:keys [on-create]}]
(proxy [Game] []
(create []
(when on-create (on-create this)))))
(defmacro defgame
[n & {:keys [] :as options}]
`(defonce ~n (defgame* ~options)))
(defn set-screen!
[^Game game & screens]
(let [add-inputs! (fn []
(input! :set-input-processor (InputMultiplexer.))
(doseq [{:keys [listeners]} screens]
(doseq [listener listeners]
(add-input! listener))))
run-fn! (fn [k & args]
(doseq [screen screens]
(apply (get screen k) args)))]
(.setScreen game (reify Screen
(show [this] (add-inputs!) (run-fn! :show))
(render [this d] (run-fn! :render d))
(hide [this] (run-fn! :hide))
(pause [this] (run-fn! :pause))
(resize [this w h] (run-fn! :resize w h))
(resume [this] (run-fn! :resume))
(dispose [this])))))
(defn update!
[{:keys [update-fn!]} & {:keys [] :as args}]
(update-fn! args))