Back to working with this, i checked the pull request and use that version instead this because i'm using Ruby 3.

Thanks a lot :)

Thanks! I'll wait for that, while I have the solution that I said rencently.

I tested Gosu::Window#tick alone and realized that is its fault and EventMachine has nothing to do here, for now i'm catching errors in Gosu::Window#update by my self using this:

require 'eventmachine'
require 'gosu'

class Window < Gosu::Window
  def initialize
    super(640, 480)
  end
  def update
    begin
      0 / 0 # Generate error.
    rescue => e
      p e
      self.close
      EM.stop
    end
  end
end

$window = Window.new

EM.run do
  EM.add_periodic_timer(1 / 60.0) { $window.tick }
end

Is there a way to check if Gosu::Window is closed? want to:
EM.add_periodic_timer(1 / 60.0) { $window.tick unless $window.closed? }

I'm working with Event Machine and Gosu so i'm using Gosu::Window#tick to make them work together and everything is fine till a error occurs in Gosu Loop(tick) and doesn't raise it and the Gosu::Window get bugged, i can't debbug my code so i'm stuck!

Sample code:
require 'eventmachine'
require 'gosu'

class Window < Gosu::Window
  def initialize
    super(640, 480)
  end
  def update
    0 / 0 # Generate error.
  end
end

$window = Window.new

EM.run do
  EM.add_periodic_timer(1 / 60.0) { $window.tick }
end

I'm following Using EventMachine with GTK+ and Using EventMachine with Qt
so i think this is the correct way.

Note: EM.add_periodic_timer is not a thread so Gosu::Window#tick can work correctly.

Right! 100% working :)

Thanks! your code works for me and i happy now, when I update gosu, stopped playing sounds, the error that I mentioned before but after I restart everything is fixed.

i upload the mp3 file and update my gosu gem and now i can't play any sound, this does not works:

class MW < Gosu::Window
  def initialize
    super 640, 480
    @song = Gosu::Song.new("alert2.mp3")
    @song.play
  end
end

window = MW.new
window.show

Well, in my project i'm using gosu to load image, no drawing, this is just an IA comparing images and i wanted use Gosu to play a sond when my IA found something, i'm using win32-sound gem(converting my mp3 to wav) now. I used a Thread just like a example because i'm using gosu in the main thread without calling a Gosu::Window of course:

if compare_img(img) == :face
  Gosu::Song.new("alert2.mp3").play
end

Thanks!

Edit: adding @song.play, sorry i forgot it.

Is there a way to play a song with Gosu without start the main loop window.show

Something like this:

Thread.new do
  song = Gosu::Song.new("file.mp3")
  song.play
  loop do
    song.update
    break unless song.playing?
  end
end

And why i get this error that works with Gosu::Song:

song = Gosu::Simple.new("file.mp3") # => RuntimeError: File contains data in an unknown format.

Thanks a lot! :)

I used: 'gem install gosu' and now work!! thanks you!!!

It isn't work :S



I had installed Ruby Installer and DevKit, Gosu run on Ruby 2.3 or i need Ruby 2.2?

I'll try with Ruby 2.2!!

Edit: No work :S

Hi! i can't install Gosu in Ruby 2.3

Microsoft Windows [Versión 6.3.9600]
(c) 2013 Microsoft Corporation. Todos los derechos reservados.

C:\Users\Gordon>gem install gosu
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing gosu:
        ERROR: Failed to build gem native extension.

    current directory: C:/Ruby23/lib/ruby/gems/2.3.0/gems/gosu-0.10.7/ext/gosu
C:/Ruby23/bin/ruby.exe -r ./siteconf20160426-2900-1dlz4st.rb extconf.rb
This gem is not meant to be installed on Windows. Instead, please use:
gem install gosu --platform=i386-mingw32

extconf failed, exit code 1

Gem files will remain installed in C:/Ruby23/lib/ruby/gems/2.3.0/gems/gosu-0.10.
7 for inspection.
Results logged to C:/Ruby23/lib/ruby/gems/2.3.0/extensions/x86-mingw32/2.3.0/gos
u-0.10.7/gem_make.out

C:\Users\Gordon>

Maybe i need Ruby 2.2?

I'm on Windows 8.1

Thanks you it's work!!!

Ok! but how i can install gosu 0.9.2? thanks you for your reply!

Hi! i can't draw fonts with Windows XP, but i can with Linux Mint 17.3.

Error:
Microsoft Windows XP [Versión 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Ruby193>ruby test.rb
test.rb:9: [BUG] Segmentation fault
ruby 1.9.3p551 (2014-11-13) [i386-mingw32]

-- Control frame information -----------------------------------------------
c:0014 p:---- s:0041 b:0041 l:000040 d:000040 CFUNC  :draw
c:0013 p:0021 s:0034 b:0034 l:000033 d:000033 METHOD test.rb:9
c:0012 p:0031 s:0031 b:0031 l:000cbc d:000030 LAMBDA C:/Ruby193/lib/ruby/gems/1.
9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patches.rb:28
c:0011 p:---- s:0027 b:0027 l:000026 d:000026 FINISH
c:0010 p:0011 s:0025 b:0025 l:000024 d:000024 METHOD C:/Ruby193/lib/ruby/gems/1.
9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patches.rb:38
c:0009 p:---- s:0022 b:0022 l:000021 d:000021 FINISH
c:0008 p:---- s:0020 b:0020 l:000019 d:000019 CFUNC  :tick
c:0007 p:0027 s:0017 b:0017 l:000016 d:000016 METHOD C:/Ruby193/lib/ruby/gems/1.
9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/patches.rb:135
c:0006 p:---- s:0014 b:0014 l:000013 d:000013 FINISH
c:0005 p:---- s:0012 b:0012 l:000011 d:000011 CFUNC  :show
c:0004 p:0011 s:0009 b:0009 l:000008 d:000008 METHOD C:/Ruby193/lib/ruby/gems/1.
9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patches.rb:45
c:0003 p:0051 s:0006 b:0006 l:00233c d:00107c EVAL   test.rb:12
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:00233c d:00233c TOP

-- Ruby level backtrace information ----------------------------------------
test.rb:12:in <main>'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patche
s.rb:45:in show'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patche
s.rb:45:in show'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/patches.rb:
135:in tick'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/patches.rb:
135:in tick'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patche
s.rb:38:in protected_draw_2'
C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_patche
s.rb:28:in block (2 levels) in <class:Window>'
test.rb:9:in draw'
test.rb:9:in `draw'

-- C level backtrace information -------------------------------------------
C:\WINDOWS\system32\ntdll.dll(KiFastSystemCallRet+0x0) [0x7c91e514]
C:\WINDOWS\system32\kernel32.dll(WaitForSingleObject+0x12) [0x7c802542]
C:\Ruby193\bin\msvcrt-ruby191.dll(rb_vm_bugreport+0xf9) [0x62e7c9d9]
C:\Ruby193\bin\msvcrt-ruby191.dll(rb_name_err_mesg_new+0x186) [0x62d41436]
C:\Ruby193\bin\msvcrt-ruby191.dll(rb_bug+0x2f) [0x62d4229f]
C:\Ruby193\bin\msvcrt-ruby191.dll(rb_check_safe_str+0x1f0) [0x62e04220]
[0x004011e6]
[0x09527d62]
C:\WINDOWS\system32\kernel32.dll(UnhandledExceptionFilter+0x1c7) [0x7c864771]

-- Other runtime information -----------------------------------------------

* Loaded script: test.rb

* Loaded features:

    0 enumerator.so
    1 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/encdb.so
    2 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/iso_8859_1.so
    3 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/trans/transdb.so
    4 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/defaults.rb
    5 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/rbconfig.rb
    6 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/deprecate.rb
    7 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/exceptions.rb
    8 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/defaults/operating_system.rb
    9 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb
   10 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems.rb
   11 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/version.rb
   12 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/requirement.rb
   13 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/platform.rb
   14 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb
   15 C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/path_support.rb
   16 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/utf_16le.so
   17 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/trans/utf_16_32.so
   18 C:/Ruby193/lib/ruby/1.9.1/i386-mingw32/enc/trans/single_byte.so
   19 C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/1.9/gosu.s
o
   20 C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/swig_
patches.rb
   21 C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu/patch
es.rb
   22 C:/Ruby193/lib/ruby/gems/1.9.1/gems/gosu-0.10.6-x86-mingw32/lib/gosu.rb

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

C:\Ruby193>

Code:
require "gosu"

class Game_Window < Gosu::Window
  def initialize
    super(640, 480)
    @font = Gosu::Font.new(self, "Arial", 18)
  end
  def draw
    @font.draw("Text", 0, 0, 0) # Error
  end
end
Game_Window.new.show

Please help me!

Hi everyone! I did this project long ago, years ago, as I did not know to use OpenGL, I create a 2D camera. As my English is very basic i'll be very brief, it is a project to stop halfway and has mistakes but I wanted to show it.

Mediafire: http://www.mediafire.com/download/5r5r6wuzn82zmfz/camera2d.zip

Use to run: [http://s11.postimg.org/4scik9qdb/Screenshot_at_2016_01_31_22_23_23.jpg]

Controls:

* Game:

WASD: Move player
Space: Fly
ESC: Exit

* Editor:

WASD: Move camera
1: Change tile id
Mouse Left: Set tile
Mouse Right: Delete tile
Mouse Wheel: Zoom
ESC: Exit and save

YouTube: https://youtu.be/3HiWPz5-I98

Well, I hope you like it, i hope i can learn more about Ruby and Gosu and i want learn OpenGL :D

Well i can do what i need, add a screenshot. Ty!!!

[http://s15.postimg.org/kjlufp6cn/image.jpg]

Well... i used draw_line and i fit it what i need, ty :D

I have a problem, the quad is filled and i need just lines! what can i do?

Ok ty bro!

Hello everybody! i try to draw a line from 0, 0 to 640, 0 and no work, to draw pixels 0, 0 i need use draw_line(0, 1 to 640, 1), i think the coords of screen start in 1, 1 point?

Gosu.draw_line(0, 1, Gosu::Color::RED, 640, 1, Gosu::Color::RED, 0)

Ah ok, anyway i did not know the diference between both but: the bold part that says, help me, ty!

Nice! thanks again!!! where i can see the headers, can you give me a link please?

Thanks bro!!! it's work hahahaha, sorry for no see that :S, how i can add to the section header? my version is Linux Mint 17.3 32bits, Ruby 1.9.3p484 (2013-11-22 revision 43786) [i686-linux] and Gem 1.8.23

Hi everybody! i'm using Linux Mint and i'm a noob user, i dont speak english and sorry for my bad english

I had this error:
~$ sudo gem install gosu
Building native extensions.  This could take a while...
ERROR:  Error installing gosu:
  ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9.1 extconf.rb
The Gosu gem requires some libraries to be installed system-wide.
See the following site for a list:
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- mkmf (LoadError)
  from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require'
  from extconf.rb:62:in `<main>'
https://github.com/jlnr/gosu/wiki/Getting-Started-on-Linux

Gem files will remain installed in /var/lib/gems/1.9.1/gems/gosu-0.10.5 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/gosu-0.10.5/ext/gosu/gem_make.out


then i used: sudo apt-get install build-essential libsdl2-dev libsdl2-ttf-dev libpango1.0-dev \libgl1-mesa-dev libfreeimage-dev libopenal-dev libsndfile-dev

but still i have the problem, please help me.

Thanks you!!!! it's work

Hi! i want know which key is pressed but like string, like STDIN.gets(), i'm using this code:

def button_down(key)
char = (key + 93).chr
end

That work only with letters but no space key and numbers.

It's for my TextInput class no Gosu's TextInput. Please help me i dont want define each key.

It's work! thanks a lot, i can understand the operation. Now i can continue with my project, ty!

Hi everyone! i'm back with Ruby/Gosu from almost 2 year and i have a problem with ruby, first i dont speak very english then i'm confused about where i can post this.

I try to make a data class like this:

@data = Array.new(width, Array.new(height, default_value))

but when i want to change a value like this:

@data[x][y] = terrain_id

No only change that coordinate, Ruby change all coordinate Y in X coordinate, example:


@data[0][1] = 0 # [
[nil, 1, nil], # XY: 0, 1
[nil, 1, nil], # XY: 1, 1
[nil, 1, nil] # XY: 2, 1
]


The problem is that all arrays have the same object_id. I can't understand why, please help me!

Data Class Completed
class Data_Tilemap
  attr_reader(:data)
  attr_accessor(:default_value)
  def initialize(width, height, default_value = 0)
    @width = width
    @height = height
    @default_value = default_value
    #@data = Array.new(width, Array.new(height, default_value))
    @data = []
    width.times { @data.push(Array.new) }
  end
  def [](x, y)
    if x.between?(0, @width - 1) and y.between?(0, @height - 1)
      return @data[x][y]
    else
      return @default_value
    end
  end
  def []=(x, y, value)
    @data[x][y] = value if x.between?(0, @width - 1) and y.between?(0, @height - 1)
    print(
    @data[0].object_id, " ", #=> 21483444
    @data[1].object_id, " ", #=> 21483444
    @data[2].object_id) #=> 21483444
    puts
  end
  def resize(width, height)
    new_data = Array.new(width, Array.new(height, @default_value))
    for x in 0...@width
      for y in 0...@height
        if x.between?(0, width - 1) and y.between?(0, height - 1)
          new_data[x][y] = @data[x][y]
        end
      end
    end
    @data = new_data
    @width = width
    @height = height
  end
end

Edit:

Important information: i save the data like this:
file = File.open(filename, "wb")
Marshal.dump(data, file)
file.close

and load:

file = File.open(@filename, "rb")
@data = Marshal.load(file)
file.close

Thanks jlnr :), well i will to downgrade my ruby. :(

Hi! i have a error with Gosu's lib when i update my ruby to 2.0.

When i want to use require 'gosu': Look the picture.

Please help.

PD: I have Window 7.

Thanks a lot!! problem solve!!

Hi! i don't know much about regular expressions, however i use them but with this expression i have a problem, look:

/\[\d+\]/.match("text[2]") # => "2" Nice!
/\[\d+\]/.match("text[2]_plus[4]") # => "2" # Problem

So i use:
/\[\d+\]+/.match("text[2]_plus[4]") # => "2" Problem i need "4", the last

I don't know how solve problem, please help me.

PD: I don't speak english, sorry for the bad expressions.

Ok thanks a lot! close post please!

Nice i understand! but how unistall lol_02's gem ("ruby-opengl-0.60.1-x86-mingw32-ruby19.gem") i install this gem with gem no rubygems, you understand me?

Edit:

I use: gem uninstall ruby-opengl-0.60.1-x86-mingw32-ruby19.gem but => INFO: gem "ruby-opengl-0.60.1-x86-mingw32-ruby19.gem" is not installed

I have a folder with this name: FOLDER[opengl-0.8.0.pre1-x86-mingw32] and FOLDER[ruby-opengl-0.60.1]. I need uninstall the second folder.

Ok Spooner, ready, now how to uninstall the old opengl?. Thanks a lot!

It's Work! Thanks a lot!!!!!

Hi guys, i don't speak english but i will try with the help of Google Translator.

First, i install DevKit of the http://rubyinstaller.org/downloads/ in "C:\Ruby1.9.3\Nueva carpeta\" (Nueva carpeta = New folder) look the picture!

C:\Ruby1.9.3\lib\ruby\site_ruby\devkit.rb
# enable RubyInstaller DevKit usage as a vendorable helper library
unless ENV['PATH'].include?('C:\\Ruby1.9.3\\Nueva carpeta\\mingw\\bin') then
  puts 'Temporarily enhancing PATH to include DevKit...'
  ENV['PATH'] = 'C:\\Ruby1.9.3\\Nueva carpeta\\bin;C:\\Ruby1.9.3\\Nueva carpeta\\mingw\\bin;' + ENV['PATH']
end
ENV['RI_DEVKIT'] = 'C:\\Ruby1.9.3\\Nueva carpeta'
ENV['CC'] = 'gcc'
ENV['CXX'] = 'g++'
ENV['CPP'] = 'cpp'


Second, i install the Gosu library using: "gem install gosu", look the picture!

Third, i try install the OpenGL library using: "gem install ruby-opengl", look the picture!

Now, i will to test the libraries:

test-gosu.rb
require 'rubygems'
require 'gosu'
gets
Work!

test-opengl.rb
require 'rubygems'
require 'opengl'
gets
No work!

Please i need help why i don't understand what happens, i can see what say Error but i don't understand why Error!

If you can answer in spanish would be better, Thanks a lot!

The black background does not delete :S.

[http://s2.subirimagenes.com/imagen/previo/thump_7505650drawtext.png]

And how to change text color?.

Edit:

This is the method:

def draw_text(x, y, string)
  text = Gosu::Image.from_text(@window, string, "Arial", 18)
  @image.splice(text, x, y, :chroma_key => [0, 0, 0, 1])
end

I'm not going to recreate the code, I will imitate the code :D. I'll remember but I have done a lot of code:

@sprite = Sprite.new # => Make
@sprite.x = x # => Make
@sprite.y = y # => Make
@sprite.z = z # => Make
@sprite.ox = ox # => Make
@sprite.oy = oy # => Make
@sprite.visible = visible # => Make
@sprite.zoom_x = zoom_x # => Make
@sprite.zoom_y = zoom_y # => Make
@sprite.angle = angle # => Make
@sprite.tone = Color.new(red, green, blue[, alpha = 255]) # => Make
@sprite.bitmap = Bitmap.new(width, height) or Bitmap.new(filename) # => Make
@sprite.bitmap.set_pixel(x, y, color) # => Make
@sprite.bitmap.get_pixel(x, y) # => Make
@sprite.bitmap.set_rect(x, y, width, height, color, fill) or @sprite.bitmap.set_rect(Rect.new(x, y, width, height), color, fill) # => Make
@sprite.bitmap.src_rect = Rect.new(x, y, width, height) # => Make
@sprite.bitmap.blt(x, y, Bitmap.new('image.png')[, Rect.new(x, y, width, height) = Rect.new(0, 0, bitmap.width, bitmap.height)]) # => Make
@sprite.bitmap.clear # => Make
Keyboard.trigger?(key) # => Make
Keyboard.trigger_release?(key) # => Make
Keyboard.press?(key) # => Make
Mouse.trigger?(key) # => Make
Mouse.trigger_release?(key) # => Make
Mouse.press?(key) # => Make

That's what I need, but the text has a black background, is there anyway to remove it? I would use this:

@text = Image.from_text(@window, "Some text", font, 10)
for x in 0..@text.width
  for y in 0..@text.height
    color = @text.get_pixel(x, y)
    if color == [0, 0, 0, 1]
      @text.set_pixel(x, y, [0, 0, 0, 0]
    end
  end
end
Note: Untested code

also need to change the text color, is it possible? Thank you very much :D.

You can draw a text on an image? example:

@image = Gosu::Image.new(@window, 'media/image.png')
@image.draw_text(0, 0, 'Name: Orc')

I need that merge text pixels to the pixels of the image. Please is very important to me, thank you very much.

Ahhhh!!! ok i understand :D.

I can not understand how to use clip_to, if I can help I'd appreciate.

I do not speak much English but I think I understood what I said and never used pygame/rubygame. I am creating a library with Gosu/TexPlay.

In order not to talk too much I'm going to put a code showing what I want to do:

class Window_Command < Window_Base
  def initialize(width, commands)
    self.width = width
    self.height = 64 # Window height
    @index = 0
    @commads = commands
    @cursor = Sprite.new
    @cursor.bitmap = Bitmap.new('cursor.png') # Bitmap is equal Gosu::Image but Bitmap is created by my.
    self.contents = Bitmap.new(width, commands.length * 32) # width = 192; height = 96
    self.contents.src_rect = Rect.new(0, 0, self.width, self.height) # Not show beyond the window height.
    refresh
  end
  def refresh
    self.contents.clear
    for c in 0...@commands.length # 0, 1, 2
      draw_item(@commands[c], c)
    end
  end
  def draw_item(text, index)
    self.contents.draw_text(0, index * 32, text) # (x, y, string) I need to create this method.
  end
  def update
    if Keyboard.trigger?(:Down)
      @index += 1
    elsif Keyboard.trigger?(:Up)
      @index -= 1
    end
    @cursor.y = @index * 32
    update_src_rect
  end
  def update_src_rect
    case @index
    when 0..1 then self.contents.src_rect.y = 0
    when 3 then self.contents.src_rect.y = 32
    end
  end
end

window_commands = Window_Command(192, ['New Game', 'Continue', 'Exit'])

if Keyboard.trigger?(:Enter)
  case window_commands.index
  when 0 # New Game
  when 1 # Continue
  when 2 # Exit
  end
end

This code creates a window in the game like Final Fantasy, to select options at the beginning of the game, but are only visible two squares the third is created but not visible (src_rect). I hope you find me understand.

My methodology is the RPG Maker XP.

Let me give an example of the error code (need an image):

require 'gosu'
require 'texplay'

class Window < Gosu::Window
  def initialize
    super(640, 480, false)
    # Try this code
    @original_image = TexPlay.create_image(self, 32, 32)
    @original_image.rect(0, 0, 5, 5, :color => :red) # later: Comment this line.
    @original_image.insert(Gosu::Image.new(self, 'image.png'), 6, 0)
   
    @cropped_image = TexPlay.create_image(self, 100, 100)
    @cropped_image.splice(@original_image, 0, 0)
  end
 
  def draw
    @cropped_image.draw(0, 0, 0)
  end
end

Window.new.show

I need to use Gosu::Image.new(self, 'image.png') and not 'image.png'.

Look how clear the image(@original_image.insert) when using a rect. Thank you very much.

Is what I need but I have a problem:

When I use:

@original_image.insert(image, x, y)

And then use:

@cropped_image.splice(@original_image, x, y)

"splice" ignores the images inserted with the method "insert".

Is there any way to not ignore?. Thank you very much.

Thanks but does not solve everything I need. This method is best: http://www.libgosu.org/cgi-bin/mwf/topic_show.pl?tid=726. Thank you very much :D.

Hello, I need to know how to edit the rect, something like this:

@image.rect_x = x
@image.rect_y = y
@image.rect_width = width
@image.rect_height = height

or

@image.set_rect(x, y, width, height)

Thank you very much.

It worked!, This approach is better because you can use the rect, exactly at this time had that error. Thank you very much: D.

@image = Gosu::Image.new(window, EmptyImageSource.new(100, 100), tileable, rect_x, rect_y, rect_width, rect_height)

Is there any way to edit the rect? so:

@image.rect_x = x
@image.rect_y = y
@image.rect_width = width
@image.rect_height = height

or

@image.set_rect(x, y, width, height)

Hello, I have a bug with TexPLay is that when I use the command:

x = 50
y = 50
color = rand(100) > 50 ? :red : [1, 0, 0, 1]
@image.pixel(x, y, color)

Does not change the pixel to red, it always changes to white. Please help.

Edit:

Problem resolved:

x = 50
y = 50
color = rand(100) > 50 ? :red : [1, 0, 0, 1]
@image.pixel(x, y, :color => color)

When I set the color to use I do so: :color => color.