From a1ac74174f2c3032f59e02f8c9d99723bba350a4 Mon Sep 17 00:00:00 2001
From: Racoonicorn <Racoonicorn@users.noreply.github.com>
Date: Mon, 19 Dec 2016 14:02:06 +0100
Subject: [PATCH] Update roofus.c

---
 roofus.c | 197 ++++++++++++++++++++++++++++---------------------------
 1 file changed, 101 insertions(+), 96 deletions(-)

diff --git a/roofus.c b/roofus.c
index 7dfa4a1..3743d1e 100644
--- a/roofus.c
+++ b/roofus.c
@@ -1,192 +1,197 @@
-#define VERSION "0.01"
+#define VERSION "0.02"
 
 #define N 5
 #include <stdio.h>
 #include <time.h>
 #include <stdlib.h>
 
-void start();
-void printm();
-void move(char * dir);
-void nolow();
-int win();
-int error();
+void start ();
+void printm ();
+void move (char *dir);
+void nolow ();
+int win ();
+int error ();
 
 int matrix[N][N];
-int my_x=N/2;
-int my_y=N/2;
+int my_x = N / 2;
+int my_y = N / 2;
 int moves = 0;
 
 int main () {
     char dir[20];
     char exit;
-    int end=0;
+    int end = 0;
 	srand (time(NULL));
     
-    start();
-    printm();
-    while(end==0){
-        printf("\nDirection?  ");
-        scanf("%s", dir);
-        getchar();
-        if(dir[0]=='0'){
-            printf("\nExit? [y/n]  ");
-            scanf("%c", &exit);
-            if(exit=='y'){
-                printf("\n\n\n\nv%s", VERSION);
+    start ();
+    printm ();
+    while (end == 0) {
+        printf ("\nLeft: a. Up: w. Right: d. Down: s. Exit: 0");
+        printf ("\nDirection?  ");
+        scanf ("%s", dir);
+        getchar ();
+        if (dir[0] == '0') {
+            printf ("\nExit? [y/n]  ");
+            scanf ("%c", &exit);
+            if (exit == 'y') {
+                printf ("\n\n\n\nv%s", VERSION);
                 return moves;
-            }else{
-                dir[0]='1';
-                getchar();
+            } else {
+                dir[0] = '1';
+                getchar ();
             }
         }
-        move(dir);
-        printm();
-        end = win();
+        move (dir);
+        printm ();
+        end = win ();
     }
     return 0;
 }
 
-void start(){
+void start () {
     int i, j;
-    for (i=0; i<N; i++){
-        for (j=0;j<N; j++){
-            matrix[i][j]= rand () % 19 + 1;
+    for (i = 0; i < N; i++) {
+        for (j = 0; j < N; j++) {
+            matrix[i][j] = rand () % 19 + 1;
         }
     }
-    nolow();
+    nolow ();
 }
 
-void move(char * dir){
+void move (char *dir) {
     int xinit, yinit;
-    int stop=0;
+    int stop = 0;
     int i, j;
 
-    xinit=my_x;
-    yinit=my_y;
+    xinit = my_x;
+    yinit = my_y;
     
-    switch (dir[0]){ 
+    // move pointer
+    switch (dir[0]) { 
         case 'a': 
-            if(my_x != 0){
+            if (my_x != 0) {
                 my_x--;
-            }else{
-                stop=error();
+            } else {
+                stop = error ();
             }
             break;
         case 'd': 
-            if(my_x < N-1){
+            if (my_x < N-1) {
                 my_x++; 
-            }else{
-                stop=error();
+            } else {
+                stop = error ();
             }
             break;
         case 'w':                 
-            if(my_y >0){
+            if (my_y > 0) {
                 my_y--; 
-            }else{
-                stop=error();
+            } else {
+                stop = error ();
             }
             break;
         case 's':
-            if(my_y < N-1){
+            if(my_y < N-1) {
                 my_y++; 
-            }else{
-                stop=error();
+            } else {
+                stop = error ();
             }
             break;
         case 'o':
-            stop=1;
+            stop = 1;
             break;
         default:
-            stop=error();
+            stop = error ();
             break;
         }
-    if(stop==0){
-
-        if(*dir == 'd'){
-            for (j=1+xinit;j<=4; j++){
-                if(matrix[yinit][j]!=0){
-                    matrix[yinit][j]= matrix[yinit][j] - matrix[yinit][xinit];
-                    if(matrix[yinit][j]<0 && matrix[yinit][xinit]!=0)
+    if (stop == 0) {
+        // change values
+        if (*dir == 'd') {
+            for (j = 1 + xinit; j <= 4; j++) {
+                if (matrix[yinit][j] != 0) {
+                    matrix[yinit][j] = matrix[yinit][j] - matrix[yinit][xinit];
+                    if (matrix[yinit][j] < 0 && matrix[yinit][xinit] != 0)
                         matrix[yinit][j] = -matrix[yinit][j];
                 }
             }
         }
-        if(*dir == 'a'){
-            for (j=0;j<xinit; j++){
-                if(matrix[yinit][j]!=0){
-                    matrix[yinit][j]= matrix[yinit][j] - matrix[yinit][xinit];
-                    if(matrix[yinit][j]<0 && matrix[yinit][xinit]!=0)
+        if (*dir == 'a') {
+            for (j = 0; j < xinit; j++) {
+                if (matrix[yinit][j] != 0) {
+                    matrix[yinit][j] = matrix[yinit][j] - matrix[yinit][xinit];
+                    if (matrix[yinit][j] < 0 && matrix[yinit][xinit] != 0)
                         matrix[yinit][j] = -matrix[yinit][j];
                 }
             }
         }
-         if(*dir == 'w'){
-            for (i=my_y;i>=0; i--){
-                if(matrix[i][my_x]!=0){
-                    matrix[i][my_x]= matrix[i][my_x] - matrix[yinit][xinit];
-                    if(matrix[i][my_x]<0 && matrix[yinit][xinit]!=0)
+         if (*dir == 'w'){
+            for (i = my_y;i >= 0; i--) {
+                if (matrix[i][my_x] != 0) {
+                    matrix[i][my_x] = matrix[i][my_x] - matrix[yinit][xinit];
+                    if (matrix[i][my_x] < 0 && matrix[yinit][xinit] != 0)
                         matrix[i][my_x] = -matrix[i][my_x];
                 }
             }
         }
-         if(*dir == 's'){
-            for (i=my_y;i<N; i++){
-                if(matrix[i][my_x]!=0){
-                    matrix[i][my_x]= matrix[i][my_x] - matrix[yinit][xinit];
-                    if(matrix[i][my_x]<0 && matrix[yinit][xinit]!=0)
+         if (*dir == 's'){
+            for (i = my_y; i < N; i++) {
+                if(matrix[i][my_x] != 0) {
+                    matrix[i][my_x] = matrix[i][my_x] - matrix[yinit][xinit];
+                    if (matrix[i][my_x] < 0 && matrix[yinit][xinit] != 0)
                         matrix[i][my_x] = -matrix[i][my_x];
                 }
             }
         }
-        nolow();
+        nolow ();
         moves++;
     }
 }
 
-void nolow(){
+// if 1 or 2 -> random number
+void nolow () {
     int i, j;
-    for(i=0;i< N;i++){
-        for(j=0;j< N;j++){
-            if(matrix[i][j]<3 && matrix[i][j]>0)
-                matrix[i][j] =  (rand()%10)-10;
+    for (i = 0; i < N; i++) {
+        for (j = 0; j < N; j++) {
+            if ( matrix[i][j] < 3 && matrix[i][j] > 0)
+                matrix[i][j] = rand () % 10 - 10;
         }
     }
 }
 
-void printm(){
+// print matrix
+void printm () {
     int i, j;
-    printf("\n\n");
-    for (i=0; i<N; i++){
-        for (j=0;j<N; j++){
-            if (i==my_y && j == my_x)
+    printf ("\n\n");
+    for (i = 0; i < N; i++) {
+        for (j = 0;j < N; j++) {
+            if (i == my_y && j == my_x)
                 printf ("> ");
-            if(matrix[i][j]!=0)
-                    printf("%d\t", matrix[i][j]);
+            if (matrix[i][j] != 0)
+                    printf ("%d\t", matrix[i][j]);
                 else
-                    printf(" \t");
+                    printf (" \t");
         }
-        printf("\n\n");
+        printf ("\n\n");
     }
 }
 
-int win(){
+int win () { // 20+ zeros
     int i, j, count=0;
-    for (i=0; i<N; i++){
-        for (j=0;j<N; j++){
-            if (matrix[i][j]==0)
+    for (i = 0; i < N; i++) {
+        for (j = 0; j < N; j++) {
+            if (matrix[i][j] == 0)
                 count++;
         }
     }
-    if (count >= N*(N-1)){
-        printf("\nYou win! Moves: %d", moves);
+    if (count >= N * (N-1)) {
+        printf ("\nYou win! Moves: %d", moves);
         return 1;
     }else{
+        printf ("\nYou still need to delete %d numbers", N * (N-1) - count);
         return 0;
     }
 }
 
-int error(){
-    printf("ERROR!!!");
+int error () {
+    printf ("ERROR!!!");
     return 1;
 }