很奇怪的问题：RMXP中的 Viewport 端口竟然没有 disposed? 方法？

ky52879

刚才无意间发现一个BUG：

很奇怪的问题：RMXP中的 Viewport 端口竟然没有 disposed? 方法？

但是我查了F1：里面明确的指出——是有这个方法的，但是调用不成功。。。。

求高手解答！

orzfly

因为你说求高手解答，所以不是高手的人都不敢给你回答问题了（大雾）
所以我也不是高手我很菜的所以我就不回答你了。
------------------
Enterbrain 又调皮了，确实没有 disposed? 这个方法。
XP、VX、VX Ace 都没有的说。

C 代码复制

void __cdecl Init_RGSSViewport()
{
  if ( !rb_cViewport )
  {
    rb_cViewport = rb_define_class("Viewport");
    rb_define_alloc_func(rb_cViewport, rgss_viewport_allocate);
    rb_define_method(rb_cViewport, "clone", (int)rgss_viewport_clone, 0);
    rb_define_method(rb_cViewport, "dup", (int)rgss_viewport_dup, 0);
    rb_define_method(rb_cViewport, "initialize", (int)rgss_viewport_initialize, -1);
    rb_define_method(rb_cViewport, "dispose", (int)rgss_viewport_dispose, 0);
    rb_define_method(rb_cViewport, "flash", (int)rgss_viewport_flash, 2);
    rb_define_method(rb_cViewport, "update", (int)rgss_viewport_update, 0);
    rb_define_method(rb_cViewport, "rect", (int)rgss_viewport_rect, 0);
    rb_define_method(rb_cViewport, "rect=", (int)rgss_viewport_rect_set, 1);
    rb_define_method(rb_cViewport, "visible", (int)rgss_viewport_visible, 0);
    rb_define_method(rb_cViewport, "visible=", (int)rgss_viewport_visible_set, 1);
    rb_define_method(rb_cViewport, "z", (int)rgss_viewport_z, 0);
    rb_define_method(rb_cViewport, "z=", (int)rgss_viewport_z_set, 1);
    rb_define_method(rb_cViewport, "ox", (int)rgss_viewport_ox, 0);
    rb_define_method(rb_cViewport, "ox=", (int)rgss_viewport_ox_set, 1);
    rb_define_method(rb_cViewport, "oy", (int)rgss_viewport_oy, 0);
    rb_define_method(rb_cViewport, "oy=", (int)rgss_viewport_oy_set, 1);
    rb_define_method(rb_cViewport, "color", (int)rgss_viewport_color, 0);
    rb_define_method(rb_cViewport, "color=", (int)rgss_viewport_color_set, 1);
    rb_define_method(rb_cViewport, "tone", (int)rgss_viewport_tone, 0);
    rb_define_method(rb_cViewport, "tone=", (int)rgss_viewport_tone_set, 1);
  }
}

void __cdecl Init_RGSSViewport()


{


  if ( !rb_cViewport )


  {


    rb_cViewport = rb_define_class("Viewport");


    rb_define_alloc_func(rb_cViewport, rgss_viewport_allocate);


    rb_define_method(rb_cViewport, "clone", (int)rgss_viewport_clone, 0);


    rb_define_method(rb_cViewport, "dup", (int)rgss_viewport_dup, 0);


    rb_define_method(rb_cViewport, "initialize", (int)rgss_viewport_initialize, -1);


    rb_define_method(rb_cViewport, "dispose", (int)rgss_viewport_dispose, 0);


    rb_define_method(rb_cViewport, "flash", (int)rgss_viewport_flash, 2);


    rb_define_method(rb_cViewport, "update", (int)rgss_viewport_update, 0);


    rb_define_method(rb_cViewport, "rect", (int)rgss_viewport_rect, 0);


    rb_define_method(rb_cViewport, "rect=", (int)rgss_viewport_rect_set, 1);


    rb_define_method(rb_cViewport, "visible", (int)rgss_viewport_visible, 0);


    rb_define_method(rb_cViewport, "visible=", (int)rgss_viewport_visible_set, 1);


    rb_define_method(rb_cViewport, "z", (int)rgss_viewport_z, 0);


    rb_define_method(rb_cViewport, "z=", (int)rgss_viewport_z_set, 1);


    rb_define_method(rb_cViewport, "ox", (int)rgss_viewport_ox, 0);


    rb_define_method(rb_cViewport, "ox=", (int)rgss_viewport_ox_set, 1);


    rb_define_method(rb_cViewport, "oy", (int)rgss_viewport_oy, 0);


    rb_define_method(rb_cViewport, "oy=", (int)rgss_viewport_oy_set, 1);


    rb_define_method(rb_cViewport, "color", (int)rgss_viewport_color, 0);


    rb_define_method(rb_cViewport, "color=", (int)rgss_viewport_color_set, 1);


    rb_define_method(rb_cViewport, "tone", (int)rgss_viewport_tone, 0);


    rb_define_method(rb_cViewport, "tone=", (int)rgss_viewport_tone_set, 1);


  }


}

---------
继续研究的报告：

C 代码复制

a1 = object_id * 2;
result = *(_DWORD *)(a1 + 16);
if ( !*(_DWORD *)(result + 8) )
  rb_raise(rb_cRGSSError, "disposed viewport");

a1 = object_id * 2;


result = *(_DWORD *)(a1 + 16);


if ( !*(_DWORD *)(result + 8) )


  rb_raise(rb_cRGSSError, "disposed viewport");

所以我们可以自己写一个 disposed? 了：

RUBY 代码复制

class ::Viewport
  RtlMoveMemory_pi = Win32API.new('kernel32', 'RtlMoveMemory', 'pii', 'i')
 
  def disposed?
    buffer = " " * 4
    ad = object_id * 2 + 16
    RtlMoveMemory_pi.call(buffer, ad, 4)
    ad = buffer.unpack("L")[0] + 8
    RtlMoveMemory_pi.call(buffer, ad, 4)
    return buffer.unpack("L")[0] == 0 ? true : false
  end
end

class ::Viewport


  RtlMoveMemory_pi = Win32API.new('kernel32', 'RtlMoveMemory', 'pii', 'i')


 


  def disposed?


    buffer = " " * 4


    ad = object_id * 2 + 16


    RtlMoveMemory_pi.call(buffer, ad, 4)


    ad = buffer.unpack("L")[0] + 8


    RtlMoveMemory_pi.call(buffer, ad, 4)


    return buffer.unpack("L")[0] == 0 ? true : false


  end


end

@晴兰

ky52879

哇。。。好厉害，连RGSS102J里面的函数都能研究出来，佩服了！！！

PS：弱弱的问一句—RMXP的800*600地图，除了拼接3个Viewport外，还有好的方法吗？