Game of Life

Summary

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Download Model

Download the .scn, .sel and .lse files by clicking on the following link: File:GameOfLife.zip

Model Code Explanation

In the following sections we will examine all of the model files for this model. Note that instead of downloading the zip file above, you could just copy the text in the boxes below into a text editor and save it with the appropriate name (Section title). Opening the resulting .scn file in the SELES simulator would run this model.

GameOfLife.scn File

Scenario Information
GameOfLife.sel
SimPriority Low Priority

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GameOfLife.sel File

Seles Model
Model Size: 200, 200
Time Units: na Step 1
Landscape Events:
 GameOfLife.lse
Variable-Output View Maps:
 CellState
 PrevCellState
Output Model Bounds:
 CellState: 1
 PrevCellState: 1
Global Variables:
 pInitial = 0.05
Output Frequency: 1

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GameOfLife.scn File

/* This file contains a landscape event definition for Conway's Game of Life */
LSEVENT: GameOfLife

DEFINITIONS
   LAYER: CellState, PrevCellState
   GLOBAL VARIABLE: pInitial
ENDDEF

INITIALSTATE
   INITIALSTATE = 1
   CellState = IF UNIFORM(0,1) < pInitial THEN 1 ELSE 0
ENDIS

RETURNTIME
   RETURNTIME = 1
   PrevCellState = CellState
ENDRT


TRANSITIONS
  TRANSITIONS = TRUE

  numNeighbs = 0
  OVER REGION CENTRED(1,1.5, EUCLIDEAN)
     DECISION PrevCellState EQ 1
     numNeighbs = numNeighbs + 1
  ENDFN

  CellState = IF (CellState EQ 0) AND (numNeighbs EQ 3) THEN 1
              ELSE IF (CellState EQ 1) AND (2 <= numNeighbs <= 3) THEN 1
              ELSE 0
ENDTR

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