Files
play-clj/src/play_clj/core_render.clj
2014-01-03 02:20:39 -05:00

83 lines
2.2 KiB
Clojure

(in-ns 'play-clj.core)
; renderers
(defn load-tiled-map
[{:keys [file]}]
(assert (string? file))
(.load (TmxMapLoader.) file))
(defn unit-scale
[{:keys [tile-size]}]
(assert (number? tile-size))
(float (/ 1 tile-size)))
(defn render!
[{:keys [renderer ^Camera camera]}]
(assert renderer)
(cond
(isa? (type renderer) BatchTiledMapRenderer)
(doto ^BatchTiledMapRenderer renderer
(.setView camera)
.render)
(isa? (type renderer) Stage)
(.draw ^Stage renderer)))
(defn tiled-map-layer
[{:keys [^BatchTiledMapRenderer renderer]} layer]
(assert renderer)
(-> renderer .getMap .getLayers (.get layer)))
(defn tiled-map-cell
[{:keys [^BatchTiledMapRenderer renderer] :as screen} layer x y]
(assert renderer)
(-> (if (or (string? layer) (number? layer))
^TiledMapTileLayer (tiled-map-layer screen layer)
^TiledMapTileLayer layer)
(.getCell x y)))
(defmulti renderer :type :default nil)
(defmethod renderer nil [opts])
(defmethod renderer :orthogonal-tiled-map [opts]
(OrthogonalTiledMapRenderer. ^TiledMap (load-tiled-map opts)
^double (unit-scale opts)))
(defmethod renderer :isometric-tiled-map [opts]
(IsometricTiledMapRenderer. ^TiledMap (load-tiled-map opts)
^double (unit-scale opts)))
(defmethod renderer :isometric-staggered-tiled-map [opts]
(IsometricStaggeredTiledMapRenderer. ^TiledMap (load-tiled-map opts)
^double (unit-scale opts)))
(defmethod renderer :hexagonal-tiled-map [opts]
(HexagonalTiledMapRenderer. ^TiledMap (load-tiled-map opts)
^double (unit-scale opts)))
(defmethod renderer :stage [_]
(Stage.))
; cameras
(defmulti camera identity :default :orthographic)
(defmethod camera :orthographic [_]
(OrthographicCamera.))
(defmethod camera :perspective [_]
(PerspectiveCamera.))
(defn resize-camera!
[{:keys [^OrthographicCamera camera]} width height]
(assert camera)
(.setToOrtho camera false width height))
(defn move-camera!
[{:keys [^Camera camera]} x y]
(assert camera)
(when x (set! (. (. camera position) x) x))
(when y (set! (. (. camera position) y) y))
(.update camera))