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#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
const int SIZE = 20;
void initGrid(bool life[][SIZE]);
void readGrid(bool life[][SIZE]);
void printGrid(bool life[][SIZE]);
void determineNextGen(bool life[][SIZE]);
int livecellNeighbors(bool life[][SIZE],int, int);
int main()
{
bool life[SIZE][SIZE];
int row=0, col=0;
readGrid(life);
printGrid(life);
for (int count = 1; count < 5; count++)
{
determineNextGen(life);
printGrid(life);
cout<<endl;
}
return 0;
}
void readGrid(bool life[][SIZE])
{
ifstream infile("bacteria.txt");
int numBacteria, row, col;
initGrid(life);
infile >> row >> col;
while (infile){
life[row][col] = true;
infile >> row >> col;
}
infile.close();
}
void initGrid(bool life[][SIZE])
{
for (int row = 0; row < SIZE; row++){
for (int col = 0; col < SIZE; col++){
life[row][col] = false;
}
}
}
void printGrid(bool life[][SIZE])
{
cout << " 01234567890123456789" << endl;
for (int row = 0; row < SIZE; row++){
cout << setw(2) << row;
for (int col = 0; col < SIZE; col++){
if (life[row][col]){
cout << "*";
} else {
cout << " ";
}
}
cout << endl;
}
}
int livecellNeighbors(bool life[][SIZE],int row, int col)
{
int neighbors=0;
int count1=0, count2=0, count3=0, count4=0, count5=0, count6=0, count7=0, count8=0;
for (int row=0; row<SIZE;row++)
{
for (int col=0;col<SIZE;col++)
{
if(life[row][col-1]==true && col-1>=0)
{
count1++;
neighbors++;
}
if(life[row+1][col-1]==true && row+1<SIZE && col-1>=0)
{
count2++;
neighbors++;
}
if(life[row+1][col]==true && row+1<SIZE)
{
count3++;
neighbors++;
}
if(life[row][col+1]==true && col+1<SIZE)
{
count4++;
neighbors++;
}
if(life[row-1][col-1]==true && row-1>=0 && col-1>=SIZE)
{
count5++;
neighbors++;
}
if(life[row+1][col+1]==true && row+1<SIZE && col+1<SIZE)
{
count6++;
neighbors++;
}
if(life[row-1][col]==true && row-1>=0)
{
count7++;
neighbors++;
}
if(life[row-1][col+1]==true && row-1>=0 && col+1<SIZE)
{
count8++;
neighbors++;
}
}
}
return neighbors;
}
void determineNextGen(bool life[][SIZE])
{
for(int row=0;row<SIZE;row++)
for(int col=0;col<SIZE;col++)
{
int neighbors=livecellNeighbors(life,row,col);
if (life[row][col]==true && neighbors==3 || neighbors==2)
{
life[row][col]=true;
}
if (life[row][col]==true && neighbors==0 || neighbors==1)
{
life[row][col]=false;
}
if (life[row][col]==true && neighbors>=4)
{
life[row][col]=false;
}
if (life[row][col]==false && neighbors==3)
{
life[row][col]=true;
}
if (life[row][col]==false && neighbors != 3)
{
life[row][col]=false;
}
}
}
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