小编pla*_*ugs的帖子

我正在尝试cocosmotion,这是Cocos2d的Rubymotion实现.在我正在完成的教程中,我有一个以struct作为参数的方法.我咨询了Rubymotion和MacRuby文档,但无法弄清楚如何根据我需要的结构实例化一个新对象.我认为主要的问题是结构以小写字母开头,Ruby在我尝试使用它时认为它是一个局部变量.

我相信我遇到了同样的问题:https: //github.com/MacRuby/MacRuby/issues/121

有解决方案或解决方法吗？

结构在Objective-C中定义,如下所示:

 typedef struct _ccTexParams {
         GLuint  minFilter;
         GLuint  magFilter;
         GLuint  wrapS;
         GLuint  wrapT;
 } ccTexParams;

我试图调用的方法需要一个ccTexParams结构.

这是我尝试过的:

            @mysprite = Pointer.new("{ccTexParams=
            {GLUint=GL_LINEAR_MIPMAP_LINEAR}
            {GLUint=GL_LINEAR}
            {GLUint=GL_CLAMP_TO_EDGE}
            {GLUint=GL_CLAMP_TO_EDGE}}", 4)

当我这样尝试时:

        @mysprite = Pointer.new(:object, 4)

        @mysprite[0] = GL_LINEAR_MIPMAP_LINEAR 
        @mysprite[1] = GL_LINEAR
        @mysprite[2] = GL_CLAMP_TO_EDGE
        @mysprite[3] = GL_CLAMP_TO_EDGE

运行时错误是:

expected instance of Pointer of type `{_ccTexParams=IIII}', got `@' (TypeError)

我也尝试过:

@mysprite = Pointer.new("_ccTexParams", 4)

        @mysprite[0] = GL_LINEAR_MIPMAP_LINEAR 
        @mysprite[1] = GL_LINEAR
        @mysprite[2] = GL_CLAMP_TO_EDGE
        @mysprite[3] = GL_CLAMP_TO_EDGE

错误:

Can't find pointer …