Gosu::Image.new errors...

By timmcd Date 2009-10-01 23:52

My code causing the issue:
7.times do |t|
@anim << Gosu::Image.new(self,"images/#{t+1}.png", false)
end

Error:
main.rb:12:in

initialize': Wrong arguments for overloaded method 'Image.new'. (ArgumentError)
Possible C/C++ prototypes are:
    Image.new(Gosu::Window &window, VALUE source, bool tileable)
    Image.new(Gosu::Window &window, VALUE source, bool tileable, unsigned int srcX, unsigned int srcY, unsigned int srcWidth, unsigned int srcHeight)
  from main.rb:12:in

new'
from main.rb:12:in

block in initialize'
  from main.rb:11:in

times'
from main.rb:11:in

initialize'
  from main.rb:24:in

new'
from main.rb:24:in `<main>'

Whats up here?

By BlueScope Date 2013-02-18 22:40

Because this is quite an annoying thing to debug because of the vague error message, let whoever else finding this thread point in the right direction:
This happens if you try to initialize an image before you call the Window as a superclass, for example like this:

class Game < Window
  def initialize
    @image = Image.new(self, 'sprite.png')
    super(640, 480, false)
  end
end

If you put the image after the super() call, it will work flawlessly - granted everything else is as it should be ;)

By jlnr (dev) Date 2009-10-02 08:00

What is "self" in this context?

Topic Gosu / Gosu Exchange / Gosu::Image.new errors...

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