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  #1  
Old 26-Aug-2007, 14:17
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Question

Drawing order

Hi!
I'm making a card game using FLTK and I need to be able to dynamically change the drawing order of the cards.

Is this possible with just FLTK calls or do I have to make a class that manages the drawing order of the cards and then calls the cards draw() function in that order?
  #2  
Old 26-Aug-2007, 16:37
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Re: Drawing order

Quote:
Originally Posted by Z_guy
Hi!
I'm making a card game using FLTK and I need to be able to dynamically change the drawing order of the cards.

Is this possible with just FLTK calls or do I have to make a class that manages the drawing order of the cards and then calls the cards draw() function in that order?

Do you have cards displayed over each other? If so, you may want to look into the tab order for display purposes. I was toying around with a card game a while back, I'll see if I can find some code that does that.

If it is something else, explain a little more in detail or, better yet, show us a little bit of code that shows what you are after.

Mark

BTW, Welcome to GIDForums™ FLTK Forum. Glad to have you on board!
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  #3  
Old 26-Aug-2007, 17:05
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Re: Drawing order

Quote:
Originally Posted by cable_guy_67
Do you have cards displayed over each other? If so, you may want to look into the tab order for display purposes. I was toying around with a card game a while back, I'll see if I can find some code that does that.

If it is something else, explain a little more in detail or, better yet, show us a little bit of code that shows what you are after.

Mark

BTW, Welcome to GIDForums™ FLTK Forum. Glad to have you on board!

This is what I'm getting now:

As you can see, the uppmost cards are not drawn in the right position. What I want is some sort of z ordering of the cards.
  #4  
Old 03-Sep-2007, 03:42
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Re: Drawing order

use group and change order of child redraw group
  #5  
Old 04-Sep-2007, 11:55
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Re: Drawing order

Quote:
Originally Posted by bluekid
use group and change order of child redraw group
Could you please post a code example?
  #6  
Old 08-Sep-2007, 01:17
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Re: Drawing order

main.h
CPP / C++ / C Code:
// generated by Fast Light User Interface Designer (fluid) version 1.0107

#ifndef main_h
#define main_h
#include <FL/Fl.H>
void bt_callback(Fl_Widget*, void* userdata);
#include <FL/Fl_Double_Window.H>
extern Fl_Double_Window *window_main;
#include <FL/Fl_Button.H>
extern void bt_callback(Fl_Button*, void*);
extern Fl_Button *btnTest;
#include <FL/Fl_Return_Button.H>
extern void bt_callback(Fl_Return_Button*, void*);
extern Fl_Return_Button *btnClose;
#include <FL/Fl_Group.H>
extern Fl_Group *Group;
#include <FL/Fl_Box.H>
#endif
main.cpp

CPP / C++ / C Code:
// generated by Fast Light User Interface Designer (fluid) version 1.0107

#include "main.h"
#include <stdlib.h>

void bt_callback(Fl_Widget*, void* userdata) {
  if(userdata == "change"){
  Fl_Widget *tmp;
  // get first element of group
  tmp=Group->child(0);
  // remove from group
  Group->remove(tmp);
  // add end 
  Group->add(tmp);
  // redraw
  Group->redraw();
}

if(userdata == "another"){
  Fl_Widget *tmp;
  Fl_Widget **tary;
  // get child arrey of group
  tary=(Fl_Widget **)Group->array();
  // get first element of group
  tmp=tary[0];
  // third element put into first element of group  
  tary[0]=tary[2];
  // first element put into first element of group  
  tary[2]=tmp;
  // redraw
  Group->redraw();
}

else if (userdata == "close")
	exit(0);
}

Fl_Double_Window *window_main=(Fl_Double_Window *)0;

Fl_Button *btnTest=(Fl_Button *)0;

Fl_Return_Button *btnClose=(Fl_Return_Button *)0;

Fl_Group *Group=(Fl_Group *)0;

int main(int argc, char **argv) {
  Fl_Double_Window* w;
  { Fl_Double_Window* o = window_main = new Fl_Double_Window(493, 170, "FLTK window");
    w = o;
    o->align(FL_ALIGN_CLIP|FL_ALIGN_INSIDE);
    { Fl_Button* o = btnTest = new Fl_Button(291, 15, 190, 35, "Change Drawing Order");
      o->callback((Fl_Callback*)bt_callback, (void*)("change"));
    }
    { Fl_Return_Button* o = btnClose = new Fl_Return_Button(295, 120, 190, 35, "Close");
      o->callback((Fl_Callback*)bt_callback, (void*)("close"));
    }
    { Fl_Group* o = Group = new Fl_Group(10, 8, 240, 190);
      { Fl_Box* o = new Fl_Box(55, 21, 125, 36, "First");
        o->box(FL_PLASTIC_UP_BOX);
        o->color((Fl_Color)4);
      }
      { Fl_Box* o = new Fl_Box(105, 31, 125, 36, "Second");
        o->box(FL_PLASTIC_UP_BOX);
        o->color((Fl_Color)1);
      }
      { Fl_Box* o = new Fl_Box(115, 25, 50, 101, "Third");
        o->box(FL_PLASTIC_UP_BOX);
        o->color((Fl_Color)3);
      }
      o->end();
    }
    { Fl_Button* o = new Fl_Button(291, 65, 190, 40, "Another Method");
      o->callback((Fl_Callback*)bt_callback, (void*)("another"));
    }
    o->end();
  }
  w->show(argc, argv);
  return Fl::run();
}

thats all
  #7  
Old 09-Sep-2007, 13:57
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Re: Drawing order

Thank you very much!
I can't test it right now, but hopefully it will work! :-)
 
 
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