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/ C/C++ Users Group Library 1996 July / C-C++ Users Group Library July 1996.iso / vol_200 / 231_01 / visitor.st < prev   
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Text File  |  1987-06-15  |  768 b   |  35 lines
  1. Class SimulationObject :Object    
  2.     | sizeDist waitDist |
  3. [
  4.     init
  5.         sizeDist <- Binomial new initialize events: 5 mean: 0.4.
  6.         waitDist <- Random new    "uniform distribution"
  7.  
  8. |    size
  9.         ^ sizeDist next
  10.  
  11. |    wait: sizeGroup      "uniform distribution from 1 to 6"
  12.         ^ waitDist next * sizeGroup * 6
  13. ]
  14.  
  15. Class Visitor    :SimulationObject
  16.     | sizeGroup wait alreadyEaten |
  17. [
  18.     initialize: superClass
  19.         sizeGroup <- superClass size.
  20.         wait <- superClass wait: sizeGroup.
  21.         alreadyEaten <- false
  22.  
  23. |    entering
  24.         (alreadyEaten == false)
  25.              ifTrue: [alreadyEaten <- true. ^ true].
  26.         ^ false
  27.  
  28. |    time    
  29.         ^ wait
  30.  
  31. |    groupSize
  32.         ^ sizeGroup
  33.  
  34. ]
  35.