diff --git a/star.c b/star.c
index 1eaa758..b4617ab 100644
--- a/star.c
+++ b/star.c
@@ -7,17 +7,18 @@
 #define LEVEL_WIDTH 16
 
 typedef enum {
-   WALL='#',
-   BALL='@',
-   CUBE='H',
-   VOID=' ',
-   GIFT='*'
+   WALL ='#',
+   BALL ='@',
+   CUBE ='H',
+   VOID =' ',
+   GIFT ='*'
 } cell;
+
 typedef enum {
-   UP='u',
-   DOWN='d',
-   LEFT='l',
-   RIGHT='r'
+   UP    ='u',
+   DOWN  ='d',
+   LEFT  ='l',
+   RIGHT ='r'
 } direction;
 
 struct state {
@@ -30,9 +31,9 @@ int count_gifts( struct state *s )
 {
    int i, n = 0;
    for( i = 0 ; i < LEVEL_HEIGHT * LEVEL_WIDTH ; i++ ) {
-	  if ( s->level[ i ] == GIFT ) {
-		 n++;
-	  }
+      if ( s->level[ i ] == GIFT ) {
+         n++;
+      }
    }
    return n;
 }
@@ -40,7 +41,7 @@ int count_gifts( struct state *s )
 void get_pos( struct state *s, int* pos )
 {
    int p;
-   
+
    p = (int)( strchr( s->level, s->moving ) - s->level );
 
    pos[ 1 ] = p / LEVEL_WIDTH;
@@ -81,46 +82,46 @@ void move( struct state *s, direction where )
    get_pos( s, item_coord );
    tmpx = item_coord[ 0 ];
    tmpy = item_coord[ 1 ];
-	  
+
    switch( where ) {
-	  case UP:
-		 dy--;
-		 break;
-	  case DOWN:
-		 dy++;
-		 break;
-	  case LEFT:
-		 dx--;
-		 break;
-	  case RIGHT:
-		 dx++;
-		 break;
-	  default: break;
+      case UP:
+         dy--;
+         break;
+      case DOWN:
+         dy++;
+         break;
+      case LEFT:
+         dx--;
+         break;
+      case RIGHT:
+         dx++;
+         break;
+      default: break;
    }
 
    /* Calculating arrival coordinates */
-   while ( 						/* Hairy conditions ahead */
-	  /* target cell is within level's boundaries */
-	  ( ( tmpx + dx >= 0 ) && ( tmpx + dx < LEVEL_WIDTH ) ) &&
-	  ( ( tmpy + dy >= 0 ) && ( tmpy + dy < LEVEL_HEIGHT ) ) &&
-	  /* and target cell is empty */
-	  ( get_cell( s, tmpx + dx, tmpy + dy ) == VOID )
-	  /* or, in case the ball is moving, target cell can be a gift (which we'll eat) */
-	  || ( s->moving == BALL && ( get_cell( s, tmpx + dx, tmpy + dy ) == GIFT ) )
-	  )
+   while (                      /* Hairy conditions ahead */
+      /* target cell is within level's boundaries */
+      ( ( tmpx + dx >= 0 ) && ( tmpx + dx < LEVEL_WIDTH ) ) &&
+      ( ( tmpy + dy >= 0 ) && ( tmpy + dy < LEVEL_HEIGHT ) ) &&
+      /* and target cell is empty */
+      ( get_cell( s, tmpx + dx, tmpy + dy ) == VOID )
+      /* or, in case the ball is moving, target cell can be a gift (which we'll eat) */
+      || ( s->moving == BALL && ( get_cell( s, tmpx + dx, tmpy + dy ) == GIFT ) )
+      )
    {
-	  tmpx += dx;
-	  tmpy += dy;
+      tmpx += dx;
+      tmpy += dy;
 
-	  if ( s->moving == BALL && get_cell( s, tmpx, tmpy ) == GIFT ) {
-		 set_cell( s, tmpx, tmpy, VOID );
-	  }
+      if ( s->moving == BALL && get_cell( s, tmpx, tmpy ) == GIFT ) {
+         set_cell( s, tmpx, tmpy, VOID );
+      }
    }
-   
+
    /* Moving to arrival coordinates */
    set_cell( s, item_coord[ 0 ], item_coord[ 1 ], VOID );
    set_cell( s, tmpx, tmpy, s->moving );
-   
+
    free( item_coord );
 }
 
@@ -128,289 +129,289 @@ void move( struct state *s, direction where )
 
 /* so if I declare level as cell* levels[] I get a warning :/ */
 char *levels[] = { "################"
-				   "#@##        *#H#"
-				   "#          * ###"
-				   "#       ##*    #"
-				   "#   ## *      ##"
-				   "## *  *     *  #"
-				   "# *      *## * #"
-				   "#     ##*     *#"
-				   "################",
+                   "#@##        *#H#"
+                   "#          * ###"
+                   "#       ##*    #"
+                   "#   ## *      ##"
+                   "## *  *     *  #"
+                   "# *      *## * #"
+                   "#     ##*     *#"
+                   "################",
 
-				   " #  # # #   # ##"
-				   "#   *         @#"
-				   "   #*  #*   *   "
-				   "# # *     *  # #"
-				   "      #   *   # "
-				   "#    #H#  *    #"
-				   "   #  # #   #**#"
-				   "#             # "
-				   " #  #        #  ",
+                   " #  # # #   # ##"
+                   "#   *         @#"
+                   "   #*  #*   *   "
+                   "# # *     *  # #"
+                   "      #   *   # "
+                   "#    #H#  *    #"
+                   "   #  # #   #**#"
+                   "#             # "
+                   " #  #        #  ",
 
-				   "################"
-				   "#           *#@#"
-				   "#   ##      ##H#"
-				   "#   #*     *   #"
-				   "# *     *##   *#"
-				   "# #*  *  *#  *##"
-				   "# ##* #*  * *###"
-				   "#*    ##*      #"
-				   "################",
+                   "################"
+                   "#           *#@#"
+                   "#   ##      ##H#"
+                   "#   #*     *   #"
+                   "# *     *##   *#"
+                   "# #*  *  *#  *##"
+                   "# ##* #*  * *###"
+                   "#*    ##*      #"
+                   "################",
 
-				   "################"
-				   "#            #H#"
-				   "#     #        #"
-				   "##*#* *#*#*#*#*#"
-				   "# # #* *# # # ##"
-				   "##*#*#* *#*#*#*#"
-				   "#     #        #"
-				   "#   #       #@ #"
-				   "################",
+                   "################"
+                   "#            #H#"
+                   "#     #        #"
+                   "##*#* *#*#*#*#*#"
+                   "# # #* *# # # ##"
+                   "##*#*#* *#*#*#*#"
+                   "#     #        #"
+                   "#   #       #@ #"
+                   "################",
 
-				   " ############## "
-				   "#@  #   #  #   #"
-				   "#  #* # *  * # #"
-				   "##      #  #   #"
-				   "#* #*#        ##"
-				   "##     # * #   #"
-				   "#*#  # # #   #H#"
-				   "#   #    *#  #*#"
-				   " ############## ",
+                   " ############## "
+                   "#@  #   #  #   #"
+                   "#  #* # *  * # #"
+                   "##      #  #   #"
+                   "#* #*#        ##"
+                   "##     # * #   #"
+                   "#*#  # # #   #H#"
+                   "#   #    *#  #*#"
+                   " ############## ",
 
-				   "    ############"
-				   "   #   *   #* *#"
-				   "  #    *    # ##"
-				   " #     *       #"
-				   "#@     *       #"
-				   "##     *  #   ##"
-				   "#      *    #  #"
-				   "#H #   *  ##*  #"
-				   "################",
+                   "    ############"
+                   "   #   *   #* *#"
+                   "  #    *    # ##"
+                   " #     *       #"
+                   "#@     *       #"
+                   "##     *  #   ##"
+                   "#      *    #  #"
+                   "#H #   *  ##*  #"
+                   "################",
 
-				   "################"
-				   "#              #"
-				   " ## ###  #* ##*#"
-				   " #*  #* # # # # "
-				   "  #  #  ### ##  "
-				   " ##  #  #*# #*# "
-				   "#              #"
-				   "#  @#*    H  #*#"
-				   "################",
+                   "################"
+                   "#              #"
+                   " ## ###  #* ##*#"
+                   " #*  #* # # # # "
+                   "  #  #  ### ##  "
+                   " ##  #  #*# #*# "
+                   "#              #"
+                   "#  @#*    H  #*#"
+                   "################",
 
-				   "############### "
-				   "#  *##        ##"
-				   "#  #*  ## *    #"
-				   "#  *## # #*    #"
-				   "##     ##  #*# #"
-				   "## #       *#* #"
-				   "#*H*#   *  #@# #"
-				   "##             #"
-				   " ###############",
+                   "############### "
+                   "#  *##        ##"
+                   "#  #*  ## *    #"
+                   "#  *## # #*    #"
+                   "##     ##  #*# #"
+                   "## #       *#* #"
+                   "#*H*#   *  #@# #"
+                   "##             #"
+                   " ###############",
 
-				   "  # ########### "
-				   " #*#*      #  @#"
-				   "#* *#    *    # "
-				   " # #  *##  *#  #"
-				   "#  #* #*H*    *#"
-				   "#     *##     # "
-				   "#*#*         #  "
-				   "#           #   "
-				   "############    ",
+                   "  # ########### "
+                   " #*#*      #  @#"
+                   "#* *#    *    # "
+                   " # #  *##  *#  #"
+                   "#  #* #*H*    *#"
+                   "#     *##     # "
+                   "#*#*         #  "
+                   "#           #   "
+                   "############    ",
 
-				   "    ########### "
-				   "#### *         #"
-				   "#   H ###* *# *#"
-				   "# *   #* #*   # "
-				   "#     #  *  # *#"
-				   "#*#*  # *#  #@# "
-				   " #*   ###  ###  "
-				   "#         # # # "
-				   " #########  #  #",
+                   "    ########### "
+                   "#### *         #"
+                   "#   H ###* *# *#"
+                   "# *   #* #*   # "
+                   "#     #  *  # *#"
+                   "#*#*  # *#  #@# "
+                   " #*   ###  ###  "
+                   "#         # # # "
+                   " #########  #  #",
 
-				   "################"
-				   "#      #      @#"
-				   "#  #**     ** ##"
-				   "##   *   ##   *#"
-				   "#*    #*#**  ###"
-				   "## ##    ##    #"
-				   "#*  *# *    H *#"
-				   "##*###    #   ##"
-				   " ## ########### ",
+                   "################"
+                   "#      #      @#"
+                   "#  #**     ** ##"
+                   "##   *   ##   *#"
+                   "#*    #*#**  ###"
+                   "## ##    ##    #"
+                   "#*  *# *    H *#"
+                   "##*###    #   ##"
+                   " ## ########### ",
 
-				   "##     ##  #### "
-				   "#@#####* ### *##"
-				   "#    **     *  #"
-				   "# ##  ##*  #*# #"
-				   "# # * ###* ##  #"
-				   "# ##  ##   #H# #"
-				   "#     *        #"
-				   "#        *     #"
-				   "################",
+                   "##     ##  #### "
+                   "#@#####* ### *##"
+                   "#    **     *  #"
+                   "# ##  ##*  #*# #"
+                   "# # * ###* ##  #"
+                   "# ##  ##   #H# #"
+                   "#     *        #"
+                   "#        *     #"
+                   "################",
 
-				   " ############## "
-				   "# @#        * ##"
-				   "# #   #*   *## #"
-				   "#       *    # #"
-				   "# *          #*#"
-				   "# #      *     #"
-				   "##      * *  #*#"
-				   "#H  #    * # # #"
-				   " ############## ",
+                   " ############## "
+                   "# @#        * ##"
+                   "# #   #*   *## #"
+                   "#       *    # #"
+                   "# *          #*#"
+                   "# #      *     #"
+                   "##      * *  #*#"
+                   "#H  #    * # # #"
+                   " ############## ",
 
-				   "################"
-				   "#*#*        *#*#"
-				   "# *#@      ##  #"
-				   "# H        *   #"
-				   "#        *#    #"
-				   "#      *       #"
-				   "# *#        #  #"
-				   "#*#*        *#*#"
-				   "################",
+                   "################"
+                   "#*#*        *#*#"
+                   "# *#@      ##  #"
+                   "# H        *   #"
+                   "#        *#    #"
+                   "#      *       #"
+                   "# *#        #  #"
+                   "#*#*        *#*#"
+                   "################",
 
-				   " ###### ####### "
-				   "#     *#     * #"
-				   "# # * #  #   * #"
-				   "#  @#   #** #* #"
-				   " # #   # *  H# #"
-				   "#*       #  #* #"
-				   " #      *     # "
-				   "#*            *#"
-				   " ############## ",
+                   " ###### ####### "
+                   "#     *#     * #"
+                   "# # * #  #   * #"
+                   "#  @#   #** #* #"
+                   " # #   # *  H# #"
+                   "#*       #  #* #"
+                   " #      *     # "
+                   "#*            *#"
+                   " ############## ",
 
-				   "################"
-				   "## H#* *      *#"
-				   "#* @*#*       ##"
-				   "## ###    *   ##"
-				   "##     *#*#    #"
-				   "#**       *#*  #"
-				   "## *    ####*  #"
-				   "##*#  #        #"
-				   "################",
+                   "################"
+                   "## H#* *      *#"
+                   "#* @*#*       ##"
+                   "## ###    *   ##"
+                   "##     *#*#    #"
+                   "#**       *#*  #"
+                   "## *    ####*  #"
+                   "##*#  #        #"
+                   "################",
 
-				   "################"
-				   "# *#        #@ #"
-				   "# #  *#**#*  # #"
-				   "#    #*##*# *  #"
-				   "# *#       *#  #"
-				   "#  *#*    *#   #"
-				   "# #  # ##*#  # #"
-				   "#    * #*   H  #"
-				   "################",
+                   "################"
+                   "# *#        #@ #"
+                   "# #  *#**#*  # #"
+                   "#    #*##*# *  #"
+                   "# *#       *#  #"
+                   "#  *#*    *#   #"
+                   "# #  # ##*#  # #"
+                   "#    * #*   H  #"
+                   "################",
 
-				   "################"
-				   "# *    *  H#   #"
-				   "#  #*#*   #*   #"
-				   "#   #*#    #*  #"
-				   "#   *  #   *#* #"
-				   "# #*#   # *#   #"
-				   "# *#* # * #    #"
-				   "#*#@  #     #  #"
-				   "################",
+                   "################"
+                   "# *    *  H#   #"
+                   "#  #*#*   #*   #"
+                   "#   #*#    #*  #"
+                   "#   *  #   *#* #"
+                   "# #*#   # *#   #"
+                   "# *#* # * #    #"
+                   "#*#@  #     #  #"
+                   "################",
 
-				   "################"
-				   "#*   ##     ##*#"
-				   "# #  #      #* #"
-				   "# *#   *##  *  #"
-				   "# #    #*      #"
-				   "#    #   *#    #"
-				   "# ## *# ##*  #H#"
-				   "# *# #*     ##@#"
-				   "################",
+                   "################"
+                   "#*   ##     ##*#"
+                   "# #  #      #* #"
+                   "# *#   *##  *  #"
+                   "# #    #*      #"
+                   "#    #   *#    #"
+                   "# ## *# ##*  #H#"
+                   "# *# #*     ##@#"
+                   "################",
 
-				   "################"
-				   "#   *#*        #"
-				   "##*  *# ##*   ##"
-				   "# # # *   #  # #"
-				   "# H #  ##  # @*#"
-				   "# #  #   * # # #"
-				   "##   *## #*  *##"
-				   "#        *#*   #"
-				   "################",
+                   "################"
+                   "#   *#*        #"
+                   "##*  *# ##*   ##"
+                   "# # # *   #  # #"
+                   "# H #  ##  # @*#"
+                   "# #  #   * # # #"
+                   "##   *## #*  *##"
+                   "#        *#*   #"
+                   "################",
 
-				   "################"
-				   "# ###     *   ##"
-				   "#   #       # ##"
-				   "#   ##*      * #"
-				   "#  *    *   * ##"
-				   "#    #    ###* #"
-				   "#  * * @ H * **#"
-				   "################"
-				   "                ",
+                   "################"
+                   "# ###     *   ##"
+                   "#   #       # ##"
+                   "#   ##*      * #"
+                   "#  *    *   * ##"
+                   "#    #    ###* #"
+                   "#  * * @ H * **#"
+                   "################"
+                   "                ",
 
-				   "################"
-				   "#*#  #*# #*  # #"
-				   "#    #         #"
-				   "#*   #  #*  *  #"
-				   "## #*      * ###"
-				   "# * #   ###*   #"
-				   "#     #@#H  *  #"
-				   "################"
-				   "                ",
+                   "################"
+                   "#*#  #*# #*  # #"
+                   "#    #         #"
+                   "#*   #  #*  *  #"
+                   "## #*      * ###"
+                   "# * #   ###*   #"
+                   "#     #@#H  *  #"
+                   "################"
+                   "                ",
 
-				   " ############## "
-				   "# #  #*# #*  # #"
-				   "#    *  #      #"
-				   "##   #   * #*  #"
-				   "#  #*  #  ** * #"
-				   "##* #   ## *   #"
-				   "#     #@#H  *  #"
-				   " ############## "
-				   "                ",
+                   " ############## "
+                   "# #  #*# #*  # #"
+                   "#    *  #      #"
+                   "##   #   * #*  #"
+                   "#  #*  #  ** * #"
+                   "##* #   ## *   #"
+                   "#     #@#H  *  #"
+                   " ############## "
+                   "                ",
 
-				   "################"
-				   "#     #       ##"
-				   "# ##* *    ##*##"
-				   "# #*     *#  ###"
-				   "# **  *# ##    #"
-				   "# #* * #    ## #"
-				   "# ##   @#H###**#"
-				   "################"
-				   "                ",
+                   "################"
+                   "#     #       ##"
+                   "# ##* *    ##*##"
+                   "# #*     *#  ###"
+                   "# **  *# ##    #"
+                   "# #* * #    ## #"
+                   "# ##   @#H###**#"
+                   "################"
+                   "                ",
 
-				   "################"
-				   "#            # #"
-				   "# * ##*   *    #"
-				   "#   #*  *  ##  #"
-				   "# *    ##  #*  #"
-				   "# #*   *#    * #"
-				   "# ##* #@ H     #"
-				   "################"
-				   "                " };
+                   "################"
+                   "#            # #"
+                   "# * ##*   *    #"
+                   "#   #*  *  ##  #"
+                   "# *    ##  #*  #"
+                   "# #*   *#    * #"
+                   "# ##* #@ H     #"
+                   "################"
+                   "                " };
 
 void display_level( struct state *s )
 {
    int i, j, *ball, *cube;
-   
+
    printf( "%i gifts left", count_gifts( s ) );
    if ( won_or_not( s ) ) {
-	  printf( ", You WON !\n");
+      printf( ", You WON !\n");
    }
    else {
-	  printf( ", go on.\n");
+      printf( ", go on.\n");
    }
-   
+
    for( i = 0 ; i < LEVEL_HEIGHT ; i++ ) {
-	  for( j = 0 ; j < LEVEL_WIDTH ; j++ ) {
-		 switch( get_cell( s, j, i ) ) {
-			case WALL:
-			   printf( "##" );
-			   break;
-			case VOID:
-			   printf( "  " );
-			   break;
-			case BALL:
-			   printf( "()" );
-			   break;
-			case CUBE:
-			   printf( "[]" );
-			   break;
-			case GIFT:
-			   printf( "<>" );
-			   break;
-			default: break;		/* ignore newlines */
-		 }
-	  }
-	  printf( "\n" );
+      for( j = 0 ; j < LEVEL_WIDTH ; j++ ) {
+         switch( get_cell( s, j, i ) ) {
+            case WALL:
+               printf( "##" );
+               break;
+            case VOID:
+               printf( "  " );
+               break;
+            case BALL:
+               printf( "()" );
+               break;
+            case CUBE:
+               printf( "[]" );
+               break;
+            case GIFT:
+               printf( "<>" );
+               break;
+            default: break;     /* ignore newlines */
+         }
+      }
+      printf( "\n" );
    }
 }
 
@@ -418,17 +419,17 @@ int main( int argc, char* argv[] )
 {
    int i = 0;
    struct state *s = malloc( sizeof( struct state ) );
-   
+
    load_level( s, levels[ 0 ] );
-   
+
    display_level( s );
 
    char* moves = "drdluruldrdlrulurudlurdul";
    do {
-   	  fprintf( stderr, "move %c\n", moves[ i ]);
-   	  move( s, moves[ i ] );
-   	  display_level( s );
-   	  i++;
+      fprintf( stderr, "move %c\n", moves[ i ]);
+      move( s, moves[ i ] );
+      display_level( s );
+      i++;
    } while( ( ! won_or_not( s ) ) && ( moves[ i ] != '\0' ) );
    display_level( s );