diff --git a/src/main.c b/src/main.c
index 7503f33..5aeed88 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,7 +12,7 @@
 #endif
 
 // import sub programme
-#include "test_prog.h"
+#include "pipes_test.h"
 
 /*
 Photonics helper main programm
@@ -255,6 +255,7 @@ int main(int argc, char **argv){
             case 'G': line = 4; break;
 
             case '?': print_help(); break;
+            case 'p': pipes(); break;
             
             case 'q': run = false; break;
             case '\n': printf(" Es wurde die Enter Taste gedrückt"); getchar(); break;
diff --git a/src/pipes_test.c b/src/pipes_test.c
new file mode 100644
index 0000000..8d31022
--- /dev/null
+++ b/src/pipes_test.c
@@ -0,0 +1,291 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#define DEBUGGER_PIPES_TO_NUMBERS 0
+#define DEBUGGER_RANDOM 0
+
+#define INFILL_PLAIN_PAPER 0
+#define INFILL_X_PIPE 1
+#define INFILL_Y_PIPE 2
+#define FILLER "░"                      // ░
+
+#define GRID_GROESSE_X 200              // x:y -> 2:1 for a square looking grid
+#define GRID_GROESSE_Y 60
+#define MIN_LAENGE_PIPE 6
+#define MAX_LAENGE_PIPE 6
+#define SLEEP_TIMER 10000              // in nano seconds
+#define COLOR_CHANGING_PROBABILITY 10   // format: "(1 : your_number)", for every direction change
+
+#define RESET_COLOR "\033[0m"
+#define RED "\033[31m"
+#define GREEN "\033[32m"
+#define YELLOW "\033[33m"
+#define BLUE "\033[34m"
+#define MAGENTA "\033[35m"
+#define CYAN "\033[36m"
+#define WHITE "\033[37m"
+
+const char* color;
+const char *colors[] = {RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE};
+
+void random_color() {
+    color = colors[rand() % (sizeof(colors) / sizeof(colors[0]))];
+}
+
+void print_grid(int x, int y, char **grid) {
+    for (int i = 0; i < y; i++) {
+        printf("\n");
+        for (int j = 0; j < x; j++) {
+            /*
+            switch (grid[i][j]) {
+                case 0: printf(" "); break;
+                case 1: printf("━"); break;
+                case 2: printf("┃"); break;
+            }
+            */
+            if (!DEBUGGER_PIPES_TO_NUMBERS){
+                if(grid[i][j] == 0){
+                    printf(FILLER);
+                } else if(grid[i][j] != 0 && grid[i][j] != 1 && grid[i][j] != 2){
+                    return;
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 0 && grid[i][j - 1] != 0 && grid[i][j + 1] != 0 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] != 0 && grid[i + 1][j] != 0 && grid[i][j - 1] == 0 && grid[i][j + 1] == 0 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s╋", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 2 && grid[i][j - 1] == 1 && grid[i][j + 1] == 0 && grid[i][j] != 0  ){
+                    printf("%s┓", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 0 && grid[i][j - 1] == 0 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s┗", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 2 && grid[i][j - 1] == 0 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s┏", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 0 && grid[i][j - 1] == 1 && grid[i][j + 1] == 0 && grid[i][j] != 0  ){
+                    printf("%s┛", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 0 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s┣", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 1 && grid[i][j + 1] == 0 && grid[i][j] != 0  ){
+                    printf("%s┫", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 2 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s┳", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 0 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] != 0  ){
+                    printf("%s┻", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 0 && grid[i][j - 1] != 0 && grid[i][j + 1] == 0 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 0 && grid[i][j - 1] == 0 && grid[i][j + 1] != 0 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] != 0 && grid[i + 1][j] == 0 && grid[i][j - 1] == 0 && grid[i][j + 1] == 0 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] != 0 && grid[i][j - 1] == 0 && grid[i][j + 1] == 0 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] == 1 && grid[i + 1][j] == 0 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] == 1 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] == 1 && grid[i + 1][j] == 1 && grid[i][j - 1] == 1 && grid[i][j + 1] == 1 && grid[i][j] == 1  ){
+                    printf("%s━", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 0 && grid[i][j + 1] == 2 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 2 && grid[i][j + 1] == 0 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] == 2 && grid[i + 1][j] == 2 && grid[i][j - 1] == 2 && grid[i][j + 1] == 2 && grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                    
+
+                } else if(grid[i - 1][j] != 0 && grid[i + 1][j] != 0 && grid[i][j - 1] != 0 && grid[i][j + 1] != 0 && grid[i][j] == 0  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] != 0 && grid[i + 1][j] != 0 && grid[i][j - 1] != 0 && grid[i][j + 1] == 0 && grid[i][j] != 0  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i - 1][j] != 0 && grid[i + 1][j] == 0 && grid[i][j - 1] != 0 && grid[i][j + 1] != 0 && grid[i][j] != 0  ){
+                    printf("%s┻", color);
+
+                } else if(grid[i - 1][j] == 0 && grid[i + 1][j] != 0 && grid[i][j - 1] != 0 && grid[i][j + 1] != 0 && grid[i][j] != 0  ){
+                    printf("%s┳", color);
+
+                } else if(grid[i - 1][j + 1] == 0 && grid[i - 1][j] != 0 && grid[i + 1][j] != 0 && grid[i][j - 1] != 0 && grid[i][j + 1] != 0 && grid[i][j] != 0  ){
+                    printf("%s┗", color);
+
+                } else if(grid[i][j] == 2  ){
+                    printf("%s┃", color);
+
+                } else if(grid[i][j] == 1  ){
+                    printf("%s━", color);
+                } else{printf("x");}
+                    printf(RESET_COLOR); // Setzt die Farbe zurück
+            }else{
+                printf("%i", grid[i][j]);
+            }
+        }
+    }
+}
+
+void generate_pipe_x(int x, int y, char **grid, int *x_start, int *y_start, int laenge) {
+    if(laenge < 0){
+        for (int i = *x_start; i > *x_start + laenge; i--) {
+            grid[*y_start][i] = INFILL_X_PIPE;
+            printf("\33[H\033[J");
+            print_grid(x, y, grid);
+            usleep(SLEEP_TIMER);
+        }
+    } else{
+        for (int i = *x_start; i < *x_start + laenge; i++) {
+            grid[*y_start][i] = INFILL_X_PIPE;
+            printf("\33[H\033[J");
+            print_grid(x, y, grid);
+            usleep(SLEEP_TIMER);
+        }
+    }
+
+    *x_start += laenge;
+}
+
+void generate_pipe_y(int x, int y, char **grid, int *x_start, int *y_start, int laenge) {
+    if(laenge < 0){
+        for (int i = *y_start; i > *y_start + laenge/2; i--) {
+            grid[i][*x_start] = INFILL_Y_PIPE;
+            printf("\33[H\033[J");
+            print_grid(x, y, grid);
+            usleep(SLEEP_TIMER);
+        }
+    } else{
+        for (int i = *y_start; i < *y_start + laenge/2; i++) {
+            grid[i][*x_start] = INFILL_Y_PIPE;
+            printf("\33[H\033[J");
+            print_grid(x, y, grid);
+            usleep(SLEEP_TIMER);
+        }
+    }
+    /*
+    for (int i = *y_start; i < *y_start + laenge/2; i++) {
+        grid[i][*x_start] = 2;
+        printf("\33[H\033[J");
+        //fflush(stdout);
+        //usleep(100000);
+        print_grid(x, y, grid);
+        sleep_seconds(SLEEP_TIMER);
+    }*/
+    
+    *y_start += laenge/2;
+}
+
+int main_program() {
+
+    int x_start = GRID_GROESSE_X / 2;
+    int y_start = GRID_GROESSE_Y / 2;
+    int laenge = 20;
+    int max_l = MAX_LAENGE_PIPE + 1 - MIN_LAENGE_PIPE;
+    int min_l = MIN_LAENGE_PIPE - 1;
+    int color_c_p = COLOR_CHANGING_PROBABILITY + 1;
+    srand(time(NULL));
+
+    random_color();
+
+    char **grid = malloc(GRID_GROESSE_Y * sizeof(char *));
+    for (int i = 0; i < GRID_GROESSE_Y; i++) {
+        grid[i] = malloc(GRID_GROESSE_X * sizeof(char));
+    }
+
+    for (int i = 0; i < GRID_GROESSE_Y; i++) {
+        for (int j = 0; j < GRID_GROESSE_X; j++) {
+            grid[i][j] = INFILL_PLAIN_PAPER;
+        }
+    }
+    
+    int richtungswechsler = 1;
+    
+    while (!DEBUGGER_RANDOM) {
+
+        if ((rand() %color_c_p) <= 1) {
+            random_color();
+        }
+
+        if ((rand() %2)-1) {
+            laenge = ((rand() %max_l)+min_l);
+        } else {
+            laenge = ((rand() %max_l)+min_l)*-1;
+        }
+        if (richtungswechsler == 1) {
+            generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+            richtungswechsler *= -1;
+        } else {
+            generate_pipe_y(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+            richtungswechsler *= -1;
+        }
+
+    }
+
+    if (DEBUGGER_RANDOM) {
+        generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+        generate_pipe_y(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+        generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+        generate_pipe_y(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge * -0.1);
+        generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge * -1.05);
+        generate_pipe_y(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge * -1);
+        generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge * 0.1);
+        generate_pipe_y(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge * 0.9);
+        generate_pipe_x(GRID_GROESSE_X, GRID_GROESSE_Y, grid, &x_start, &y_start, laenge);
+    }
+
+
+
+    for (int i = 0; i < GRID_GROESSE_Y; i++) {
+           free(grid[i]);
+       }
+       free(grid);
+
+    return 0;
+}
+
+int pipes() {
+    pid_t pid;
+    int status;
+
+    while (1) {
+        pid = fork(); // Erzeuge einen neuen Prozess
+        if (pid == 0) {
+            // Kindprozess führt die Hauptlogik aus
+            main_program();
+            exit(0); // Normales Beenden, falls kein Fehler
+        } else if (pid > 0) {
+            // Elternprozess wartet auf das Kind
+            wait(&status);
+            if (WIFEXITED(status)) {
+                break; // Beende die Schleife, falls alles ok ist
+            } else if (WIFSIGNALED(status)) {
+            }
+        } else {
+            perror("Fehler bei fork()");
+            exit(1);
+        }
+    }
+
+    return 0;
+}
+
diff --git a/src/pipes_test.h b/src/pipes_test.h
new file mode 100644
index 0000000..9d60512
--- /dev/null
+++ b/src/pipes_test.h
@@ -0,0 +1,7 @@
+
+
+
+
+int pipes();
+
+