是否有更智能的方法来使用位于另一个命名空间中的代码

时间:2017-03-25 23:00:59

标签: opengl clojure jogl

我的核心页面上有这个。它会创建窗口,但不会绘制任何内容

(deftype Program []
   GLEventListener
     (display [this drawable] (in-ns 'game-c.drawtriangle))
     (init [this drawable] "init")
     (dispose [this drawable] "dispose")
     (reshape [this drawable x y width height] "reshape")
   )

;set up and start window methods/functions
 (def glp (GLProfile/getDefault))
 (def caps (GLCapabilities. glp))
 (def window (GLWindow/create caps))

 (def ani (FPSAnimator. window 60 true))

 (doto window
  (.addGLEventListener (Program.))
  (.setSize 600 600)
  (.setTitle "CloGame")
  (.setVisible true)
  (.start ani)
 )

这是在窗口上绘制三角形的部分。但它没有做到这一点。我只是启动repl,它显示空白窗口,函数返回值和错误消息(详见下文)

(ns game-c.drawtriangle)

(def gl (.getGL4 (.getGL window)))
(def tri [ [0.0 0.0] [0.5 0.0] [0.5 0.5] ])
(doto gl
  (.glCreateVertexArrays 1 tri)
)

这是repl输出

#object[clojure.lang.Namespace 0x49db0a8e "game-c.core"]

CompilerException java.lang.RuntimeException: 
com.jogamp.opengl.GLException: Caught IllegalStateException: Can't 
change/establish root binding of: *ns* with set on thread nREPL-worker-
1-Display-.x11_:0-1-EDT-1, compiling:(game-c/core.clj:33:2)

我认为可能有另一种方法使用位于drawtriangle的代码,但我不确定你会怎么做

1 个答案:

答案 0 :(得分:1)

试试这个:

(ns game-c.core
  (:require [game-c.drawtriangle :as tri] ))
...
 (display [this drawable] (tri/drawtriangle))
...

(ns game-c.drawtriangle
  (:require [game-c.core :as core] ))
(def gl (.getGL4 (.getGL core/window)))
...