hello, i'm begginer in ruby gtk i put images in gtk::fixed / ScrolledWindow / Fixed / Window like this : topWindow = Gtk::Window.new scrollbars = Gtk::ScrolledWindow.new.set_size_request xWidth, yWidth fixed = Gtk::Fixed.new imgBg = Gtk::Image.new file: "background.jpg" img1 = Gtk::Image.new file: "img1.png" img2 = Gtk::Image.new file: "img2.png" fixed.put imgFond, 0, 0 fixed.put img1, x1, y1 fixed.put img2, x2, y2 scrollbars.add fixed topWindow.add scrollbars topWindow.show_all my goal is to move these images (img1, img2, etc..) but I want to know if they overlap (and how they overlap) to manage the collisions. I tried with cairo, I thought I could use paths and intersections but it's very complicated ... :( Would anyone have a solution? maybe samples? or docs? The doc gtk is mainly with c and it's not easy to learn ruby/gtk. µgeek.
on 2017-01-03 06:23
on 2017-01-03 20:22
Arno Root wrote in post #1185416: > i'm begginer in ruby gtk > > my goal is to move these images (img1, img2, etc..) but I want to know > if they overlap (and how they overlap) to manage the collisions. You need a widget wich manage vector drawing. So he can manage ressources as gouping vector / bounding box / collisions (overlapp) detection / multiple layer... Gtk have not this kind of widget. > I tried with cairo, I thought I could use paths and intersections but it's > very complicated ... :( > Would anyone have a solution? maybe samples? or docs? in ruby-gtk and ruby-gdk , there are samples which are very useful: Ruby/lib/ruby/gems/x.y.z/gems/gtkx-y/sample/gtk-demo/main.rb use > gem env to see where the gems data : INSTALLATION DIRECTORY/gems/gtk... Gtk is hard to use directly. You can begin with DSL : Shoes (green shoes and/or shoes4 with jruby). I have done my own DSL, Ruiby, with some games as samples : https://github.com/glurp/dsl-gtk https://github.com/glurp/gtk-rrobots https://rubygems.org/gems/Ruiby > The doc gtk is mainly with c and it's not easy to learn ruby/gtk. Python-gtk ( and perl-gtl) doc can be use : https://www.muitovar.com/gtk2hs/app1.html In green-shoes source (and in Ruiby, dsl/canvas.rb and dsl/plot.rb) you can see many ruby/gtk/cairo stuff. For game development, Gosu is a must : * It use Opengl for drawing 2D, so drawing performances are good, * It manage image/sprite, scale/rotation, sound, mouse ... https://rubygems.org/gems/ang
on 2017-01-04 04:13
thanks a lot for your answer, > Gtk does not have this kind of widget. Outch! Yes, i understand ... a lot of work for nothing :( Thank you also for the examples, I will study them closely, but as you advised me, I will surely try Gosu. ... or maybe rubygame or sdl Thank you again, µgeek.