/vqdr/trunk : contents of src/common/random.vala at revision 21

: (revision 21)

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/*
 * The contects of this file is in the Public Domain.
 *
 * Created by Gustav Hartivgsson.
 */
namespace VQDR.Common {
  
  /**
   * At the moment this just wraps the GLib Rand things.
   * 
   * This also provides a static version of the methods.
   */
  public class Random {
    
    private static Random? _instance = null;
    
    private GLib.Rand rand;
    
    private Random () {
      this.rand = new GLib.Rand ();
    }
    
    public static Random get_instance () {
      if (_instance == null) {
       _instance = new Random ();
      }
      return _instance;
    }
    
    /* **** Instance versions *** */
    public double get_double () {
      return rand.next_double ();
    }
    
    public double get_double_range (double begin, double end) {
      return rand.double_range (begin, end);
    }
    
    public int get_int () {
      return (int) rand.next_int ();
    }
    
    public int get_int_range (int begin, int end) {
      return rand.int_range ((int32) begin, (int32) end);
    }
    
    public void seed (int seed) {
      rand.set_seed ((uint32) seed);
    }
    
    
    /* **** Static versions *** */
    public static int get_static_int () {
      Random r = Random.get_instance ();
      return r.get_int ();
    }
    
    public static double get_static_double () {
      Random r = Random.get_instance ();
      return r.get_double ();
    }
    
    public static int get_static_int_range (int begin, int end) {
      Random r = Random.get_instance ();
      return r.get_int_range (begin, end);
    }
    
    public static double get_static_double_range (double begin, double end) {
      Random r = Random.get_instance ();
      return r.get_double_range (begin, end);
    }
    
  }
  
}


19 by Gustav Hartvigsson Added Round Up and Round Down function classes.	1	/*
	2	* The contects of this file is in the Public Domain.
	3	*
	4	* Created by Gustav Hartivgsson.
	5	*/
1 by Gustav Hartvigsson * Initial code - far from done	6	namespace VQDR.Common {
	7
	8	/**
	9	* At the moment this just wraps the GLib Rand things.
	10	*
	11	* This also provides a static version of the methods.
	12	*/
	13	public class Random {
	14
	15	private static Random? _instance = null;
	16
	17	private GLib.Rand rand;
	18
	19	private Random () {
	20	this.rand = new GLib.Rand ();
	21	}
	22
	23	public static Random get_instance () {
	24	if (_instance == null) {
	25	_instance = new Random ();
	26	}
	27	return _instance;
	28	}
	29
	30	/* ** Instance versions * */
	31	public double get_double () {
	32	return rand.next_double ();
	33	}
	34
	35	public double get_double_range (double begin, double end) {
	36	return rand.double_range (begin, end);
	37	}
	38
	39	public int get_int () {
	40	return (int) rand.next_int ();
	41	}
	42
	43	public int get_int_range (int begin, int end) {
	44	return rand.int_range ((int32) begin, (int32) end);
	45	}
	46
	47	public void seed (int seed) {
	48	rand.set_seed ((uint32) seed);
	49	}
	50
	51
	52	/* ** Static versions * */
	53	public static int get_static_int () {
	54	Random r = Random.get_instance ();
	55	return r.get_int ();
	56	}
	57
	58	public static double get_static_double () {
	59	Random r = Random.get_instance ();
	60	return r.get_double ();
	61	}
	62
	63	public static int get_static_int_range (int begin, int end) {
	64	Random r = Random.get_instance ();
	65	return r.get_int_range (begin, end);
	66	}
	67
	68	public static double get_static_double_range (double begin, double end) {
	69	Random r = Random.get_instance ();
70	return r.get_double_range (begin, end);
71	}
72
73	}
74
75	}
76