/****************************************
* THE GAME OF LIFE                                          *
* Copyright 2006 Sergiusz Bazanski                 *
* Liscenced under the GNU GPL                         *
*****************************************/

#include <stdio.h>

int calculate(int occupied, int neighbours);
void printtable();
void printn();
void calculaten();
void nextstep();

int table [10][10];
int neighbourhood[10][10];
int main() {
	

	//Initialise tables
	int x = 0;
	int y = 0;
	for (x = 0; x < 10; x++){
		for (y = 0; y < 10; y++) {
			table[x][y] = 0;
		}
	}
	
	x = 0;
	y = 0;
	for (x = 0; x < 10; x++){
		for (y = 0; y < 10; y++) {
			neighbourhood[x][y] = 0;
		}
	}
	
	//Sample values, insert fancy GUI here

	table[1][7] = 1;
	table[2][7] = 1;
	table[3][7] = 1;
	table[3][8] = 1;
	table[2][9] = 1;
	
	
	printf("------------\n");
	int i = 0;
	while (1){
		printtable();
		calculaten();
		printf("------------\n");
	
		nextstep();
		
	}

	
	return 0;
}

int calculate(int occupied, int neighbours) {
	if (occupied == 1){
		if (neighbours <= 1 || neighbours >= 4)
			return 0;
		if (neighbours == 2 || neighbours == 3)
			return 1;				
	}
	else{
		if (neighbours == 3)
			return 1;
		else
			return 0;
	}
}


void printtable() {
	int x = 0;
	int y = 0;
	for (x = 0; x < 10; x++){
		printf("|");
		for (y = 0; y < 10; y++){
			if (table[y][x] == 1)
				printf("8");
			else
				printf(" ");
		}
		printf("|\n");
	}

}

void printn() {
	int x = 0;
	int y = 0;
	for (x = 0; x < 10; x++){
		for (y = 0; y < 10; y++){
			printf("%d", neighbourhood[y][x]);
		}
		printf("\n");
	}

}

void calculaten(){
	int x = 0;
	int y = 0;
	int i = 0;
	for(x = 0; x < 10; x++){
		for(y = 0; y < 10; y++){
			int i = 0;
			if (table[x-1][y-1] == 1)
				i++;
			if (table[x][y-1] == 1)
				i++;
			if (table[x+1][y-1] == 1)
				i++;
			if (table[x-1][y] == 1)
				i++;
			if (table[x+1][y] == 1)
				i++;
			if (table[x-1][y+1] == 1)
				i++;
			if (table[x][y+1] == 1)
				i++;
			if (table[x+1][y+1] == 1)
				i++;
			neighbourhood[x][y] = i;	
			
		}
	}	
}

void nextstep() {
	int x = 0;
	int y = 0;
	int occ = 0;
	int neigh = 0;
	int result = 0;
	for (x = 0; x < 10; x++){
		for (y = 0; y < 10; y++) {
			occ = table[x][y];
			neigh = neighbourhood[x][y];
			result = calculate(occ, neigh);
			table[x][y] = result;
		}
	}
}