For this game of life code, Please do the following writing for the code:
1-program description: functionality and features
2-overall program design
3-user interface
4-major classes: functionality of each class
World.java
import java.util.Scanner;
public class World{
// members
private char[][] world;
private int row;
private int col;
private char[][] glider = {{‘ ‘,’*’,’ ‘},
{‘ ‘,’ ‘,’*’},
{‘*’,’*’,’*’}};
int gliderHeight = 3;
int gliderLength = 3;
private char[][] exploder = {{‘ ‘,’*’,’ ‘},
{‘*’,’*’,’*’},
{‘*’,’ ‘,’*’},
{‘ ‘,’*’,’ ‘}};
int exploderHeight = 4;
int exploderLength = 3;
private char[][] tumbler = {{‘ ‘,’*’,’*’,’ ‘,’*’,’*’,’ ‘},
{‘ ‘,’*’,’*’,’ ‘,’*’,’*’,’ ‘},
{‘ ‘,’ ‘,’*’,’ ‘,’*’,’ ‘,’ ‘},
{‘*’,’ ‘,’*’,’ ‘,’*’,’ ‘,’*’},
{‘*’,’ ‘,’*’,’ ‘,’*’,’ ‘,’*’},
{‘*’,’*’,’ ‘,’ ‘,’ ‘,’*’,’*’}};
int tumblerHeight = 6;
int tumblerLength = 7;
private char[][] tencellRow = {{‘*’,’*’,’*’,’*’,’*’,’*’,’*’,’*’,’*’,’*’}};
int tenCellHeight = 1;
int tenCellLength = 10;
// constructors
// no-arg
public World()
{
}
//arg
public World(int r, int c)
{
row = r;
col = c;
}
//method
public void initializeGrid()//pass in r & c
{
world = new char[row][col];
for(int i = 0; i < row; i++)
{
for(int j = 0; j < col; j++)
{
world[i][j] = ‘ ‘;
}
}
}
public void printGrid()
{
for(int i = 0; i < row; i++)
{
for(int j = 0; j < col; j++)
{
System.out.print(world[i][j]);
}
System.out.println();
}
}
//count neighbors
public void checkCells()
{
int neighbors = 0;
char[][] temporary = new char[row][col];
for(int i = 0; i < row; i++)
{
for(int j = 0; j < col; j++)
{
temporary[i][j] = world[i][j];
}
}
for(int i = 0; i < row; i++)
{
for(int j = 0; j < col; j++)
{
neighbors = 0;
if (j < row-1)
{
if(world[i][j + 1] == ‘*’)
{
neighbors++;
}
}
if (j > 0)
{
if(world[i][j – 1] == ‘*’)
{
neighbors++;
}
}
if (i < row-1)
{
if(world[i + 1][j] == ‘*’)
{
neighbors++;
}
}
if (i > 0)
{
if(world[i – 1][j] == ‘*’)
{
neighbors++;
}
}
if (i < row-1 && j < row-1)
{
if(world[i + 1][j + 1] == ‘*’)
{
neighbors++;
}
}
if (i > 0 && j > 0)
{
if(world[i – 1][j -1] == ‘*’)
{
neighbors++;
}
}
if (j > 0 && i < row-1)
{
if(world[i + 1][j – 1] == ‘*’)
{
neighbors++;
}
}
if (i > 0 && j < row-1)
{
if(world[i – 1][j + 1] == ‘*’)
{
neighbors++;
}
}
//rules for live cell
if (world[i][j] == ‘*’){
if (neighbors == 3 || neighbors == 2)
{
temporary[i][j] = ‘*’;
}
else
{
temporary[i][j] = ‘ ‘;
}
}
//rules for dead cell
else if (world[i][j] == ‘ ‘){
if (neighbors == 3)
{
temporary[i][j] = ‘*’;
}
}
}
}
for(int i = 0; i < row; i++)
{
for(int j = 0; j < col; j++)
{
world[i][j] = temporary[i][j];
}
}
}
public void placePattern(String patternName)
{
char[][] pattern = {};
int patternHeight = 0;
int patternLength = 0;
if(patternName.equals(“glider”))
{
pattern = glider;
patternHeight = gliderHeight;
patternLength = gliderLength;
}
if(patternName.equals(“exploder”))
{
pattern = exploder;
patternHeight = exploderHeight;
patternLength = exploderLength;
}
if(patternName.equals(“tumbler”))
{
pattern = tumbler;
patternHeight = tumblerHeight;
patternLength = tumblerLength;
}
if(patternName.equals(“ten row cell”))
{
pattern = tencellRow;
patternHeight = tenCellHeight;
patternLength = tenCellLength;
}
int place = (row / 2) -1;
for(int i = place; i < (place + patternHeight); i++)
{
for(int x = place; x < (place + patternLength); x++)
{
world[i][x] = pattern[i – place][x – place];
}
}
}
}
WorldDriver.java
import java.util.Scanner;
public class WorldDriver
{
public static void main(String[] args) throws InterruptedException
{
Scanner input = new Scanner(System.in); //scanner
System.out.print(“Enter number of rows and columns: “);
int rows = input.nextInt(); //rows are equal to columns
int columns = rows;
Scanner input1 = new Scanner(System.in);
System.out.println(“Enter what pattern you want to input: glider, exploder, tumbler, ten row cell, or random assignment: “);
String pattern = input1.nextLine();
World world1 = new World(rows, columns); //passes world class
if(pattern.equals(“glider”))
{
if(rows < world1.gliderHeight)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
if(columns < world1.gliderLength)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
}
else if(pattern.equals(“exploder”))
{
if(rows < world1.gliderHeight)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
if(columns < world1.gliderLength)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
}
else if(pattern.equals(“tumbler”))
{
if(rows < world1.tumblerHeight)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
if(columns < world1.tumblerLength)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
}
else if(pattern.equals(“ten row cell”))
{
if(rows < world1.tenCellHeight)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
if(columns < world1.tenCellLength)
{
System.out.println(“Board is too small try again”);
System.exit(0);
}
}
else
{
System.out.println(“Invalid Pattern”);
System.exit(0);
}
System.out.println(“Enter number of generations:”);
int gen = input.nextInt();
System.out.println(“Enter wait time between generations(in milliseconds):”);
int sleepTime = input.nextInt();
world1.initializeGrid(); //initialize grid
world1.placePattern(pattern);
world1.printGrid(); //print grid dont have to pass anything object holds the variable
int count = 0;
while(count < gen)
{
world1.checkCells(); // checks and prints live cells object holds the variable
count++;
Thread.sleep(sleepTime);
world1.printGrid();
}
input.close();
input1.close();
}
}
