Game of Life .exe strange output - c

Question

I wrote a C code for a Game of Life simulation. My program works perfectly fine for case 1 which is my random array. But it doesn't work when I try to load an array out of a .txt file. I mean it gives me an output but it doesn't output an array with '*' or ' ' it gives me this:
Does someone know what my mistake is?
Here´s my code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <Windows.h>
#define ED 25
#define ZD 25
// - FUNCTIONS
void print_matr(char matr[ED][ZD], int n, int m);
void create_matr(char matr[ED][ZD], int n, int m, int *alz, int prozent);
void check_neighbours(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int *alz);
void ausfuehren(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int *alz);
void load_matr(char matr[ED][ZD], int n, int m, int filenr, int *alz);
int Menu(char *text, int anz, char *prompt);
int check_rules(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int lx, int ly, int alz);
int Einlesen(char *prompt, int min, int max, int versuche);
// -MAIN-
int main() {
const int n = ED; const int m = ZD; //1.Dim/2.Dim
char matr[ED][ZD];
char lager[ED][ZD];
int alz; //Anzahl lebender Zellen
int prozent;
switch (Menu("\n1 - random\n2 - load array 1\n3 - load array 2\n4 - load array 3\n\n0 - exit", 5, "\n >>>> ")) {
case 0: exit(0); break;
case 1:
prozent = Einlesen("Percentage? ", 0, 100, 5);
create_matr(matr, n, m, &alz, prozent);
print_matr(matr, n, m);
ausfuehren(matr, n, m, lager, &alz);
break;
case 2:
load_matr(matr, n, m, 1,&alz);
print_matr(matr, n, m);
ausfuehren(matr, n, m, lager, &alz); break;
case 3:
load_matr(matr, n, m, 2,&alz);
print_matr(matr, n, m);
ausfuehren(matr, n, m, lager, &alz); break;
case 4:
load_matr(matr, n, m, 3, &alz);
print_matr(matr, n, m);
ausfuehren(matr, n, m, lager, &alz);
break;
}
return 0;
}
// -PRINT
void print_matr(char matr[ED][ZD], int n, int m) {
for (int lx = 0; lx < n; lx++) {
for (int ly = 0; ly < m; ly++) {
printf(" %c", matr[lx][ly]);
}
printf("\n");
}
printf("\n\n");
}
int Einlesen(char *prompt, int min, int max, int versuche) {
int zahl;
fflush(stdin);
if (!versuche) {
exit(0);
}
printf(prompt);
if (!scanf("%d", &zahl)) {
printf(" *** Bitte Zahl eingeben! ***\n");
return Einlesen(prompt, min, max, versuche - 1);
}
if ((zahl<min) || (zahl>max)) {
printf(" *** [%d,%d]! ***\n", min, max);
return Einlesen(prompt, min, max, versuche - 1);
}
return zahl;
}
int Menu(char *text, int anz, char *prompt) {
printf(text);
return Einlesen(prompt, 0, anz, 5);
}
void create_matr(char matr[ED][ZD], int n, int m, int *alz, int prozent) {
for (int ln = 0; ln < n; ln++) {
for (int lm = 0; lm < m; lm++) {
if (rand()%100 <= prozent) {
matr[ln][lm] = '*';
(*alz)++;
}
else { matr[ln][lm] = ' ';}
}
}
}
int check_rules(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int lx, int ly, int l_anzlz) {
//Rule 1
if (matr[lx][ly] == '*') {
if ((l_anzlz == 0) || (l_anzlz == 1) || (l_anzlz > 3)) {
lager[lx][ly] = ' ';
}
//Rule 2
else if ((l_anzlz == 2) || (l_anzlz == 3)) {
lager[lx][ly] = '*';
}
}
//Rule 3
else if (matr[lx][ly] == ' ') {
if (l_anzlz == 3) {
lager[lx][ly] = '*';
}
else lager[lx][ly] = ' ';
}
return 1;
}
void check_neighbours(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int *alz) {
int counteq = 0;
int l_anzlz;
(*alz)=0;
for(int lx = 0; lx < n; lx++) {
for(int ly = 0; ly < m; ly++) {
l_anzlz = 0;
for(int la = -1; la <= 1; la++) {
for(int lb = -1; lb <= 1; lb++) {
if((la==0)&&(lb==0)) continue;
if((lx==0)&&(la==-1)) continue;
if((lx==n-1)&&(la==1)) continue;
if((ly==0)&&(lb==-1)) continue;
if((ly==m-1)&&(lb==1)) continue;
if (matr[lx + la][ly + lb] == '*') {
l_anzlz++;
}
}
}
check_rules(matr, n, m, lager, lx, ly, l_anzlz);
}
}
//printf("lager\n");
//print_matr(lager, n, m);
for (int i = 0; i < n; i++){
for (int j = 0; j < m; j++) {
if (matr[i][j] == lager[i][j]) {
counteq++;
}
matr[i][j] = lager[i][j];
if (matr[i][j] == '*') (*alz)++;
}
}
if (counteq == (n*m)) (*alz)=0;
}
// -EXECUTE
void ausfuehren(char matr[ED][ZD], int n, int m, char lager[ED][ZD], int *alz) {
char eing;
int fors;
fors = Einlesen(" [0] or [1]?\n", 0, 1, 2);
if(fors==1) printf(" 'q' to end \n");
while ((*alz) > 0) {
check_neighbours(matr, n, m, lager, alz); /
print_matr(matr, n, m);
if (fors == 0) {
Sleep(300);
}
else if (fors == 1) {
fflush(stdin);
scanf("%c", &eing);
if(eing=='q') break;
}
}
}
void load_matr(char matr[ED][ZD], int n, int m, int filenr, int *alz) {
FILE *fp;
char c[4];
(*alz)=0;
if (filenr == 1) {
fp = fopen("matrix1.txt", "rt");
}
else if (filenr == 2) {
fp = fopen("matrix2.txt", "rt");
}
else if (filenr == 3) {
fp = fopen("matrix3.txt", "rt");
}
if(fp==0){
printf("Couldnt open File!");
exit(-1);
}
if(fgets(c, 5, fp)==NULL){
printf("Error\n");
exit(-1);
}
n=(int)(*c);
if(fgets(c, 5, fp)==NULL){
printf("Error\n");
exit(-1);
}
m=(int)(*c);
for (int lx = 0; lx < n; lx++) {
for (int ly = 0; ly < m; ly++) {
int star = fgetc(fp);
if (star == 42) { //42=* | ASCII
matr[lx][ly] = '*';
(*alz)++;
}
else if (star == 32) { //32= | ASCII
matr[lx][ly] = ' ';
}
else if (star == 10) { //10=\n | ASCII
lx--; ly = m - 1;
}
else break; //EOF
}
}
fclose(fp);
}
Would appreciate any help!
Thanks!

Answer 1

Your problem is into the load_matr function:
This is a possible solution, that make it works when the input file is properly formatted (it is not a solution fault tolerant), and many bad things, but it works.
void clear_matr(char matr[ED][ZD])
{
for (int row = 0; row < ED; row++)
for (int col = 0; col < ZD; col++)
matr[row][col] = ' ';
}
void load_matr(char matr[ED][ZD], int n, int m, int filenr, int *alz) {
FILE *fp;
char c[16];
(*alz)=0;
memset(c, 0, sizeof(c));
if (filenr == 1) {
fp = fopen("matrix1.txt", "rt");
}
else if (filenr == 2) {
fp = fopen("matrix2.txt", "rt");
}
else if (filenr == 3) {
fp = fopen("matrix3.txt", "rt");
}
if (fp == 0) {
printf("Couldnt open File!");
exit(-1);
}
if (fgets(c, 5, fp) == NULL) {
printf("Error\n");
exit(-1);
}
n = atoi(c);
if (fgets(c, 5, fp) == NULL) {
printf("Error\n");
exit(-1);
}
m = atoi(c);
clear_matr(matr);
for (int ly = 0; ly < m; ly++) {
for (int lx = 0; lx < n; lx++) {
int star = fgetc(fp);
if (star == '\n')
star = fgetc(fp);
if (star == 42) { //42=* | ASCII
matr[ly][lx] = '*';
(*alz)++;
}
else if (star == 32) { //32= | ASCII
matr[ly][lx] = ' ';
}
else break; //EOF
}
}
fclose(fp);
}