4 function tictac_install() {
5 register_hook('app_menu', 'addon/tictac/tictac.php', 'tictac_app_menu');
8 function tictac_uninstall() {
9 unregister_hook('app_menu', 'addon/tictac/tictac.php', 'tictac_app_menu');
13 function tictac_app_menu($a,&$b) {
14 $b['app_menu'] .= '<div class="app-title"><a href="tictac">' . t('Three Dimensional Tic-Tac-Toe') . '</a></div>';
18 function tictac_module() {
26 function tictac_content(&$a) {
31 $handicap = $a->argv[1];
32 $mefirst = $a->argv[2];
37 $yours .= $_POST['move'];
39 elseif($a->argc > 1) {
40 $handicap = $a->argv[1];
47 $o .= '<h3>' . t('3D Tic-Tac-Toe') . '</h3><br />';
49 $t = new tictac($dimen,$handicap,$mefirst,$yours,$mine);
52 $o .= '<a href="tictac">' . t('New game') . '</a><br />';
53 $o .= '<a href="tictac/1">' . t('New game with handicap') . '</a><br />';
54 $o .= '<p>' . t('Three dimensional tic-tac-toe is just like the traditional game except that it is played on multiple levels simultaneously. ');
55 $o .= t('In this case there are three levels. You win by getting three in a row on any level, as well as up, down, and diagonally across the different levels.');
57 $o .= t('The handicap game disables the center position on the middle level because the player claiming this square often has an unfair advantage.');
66 private $first_move = true;
67 private $handicap = 0;
70 private $winning_play;
74 private $crosses = array('011','101','110','112','121','211');
77 '001','010','011','012','021',
78 '101','110','111','112','121',
79 '201','210','211','212','221');
82 private $corners = array(
83 '000','002','020','022',
84 '200','202','220','222');
86 private $planes = array(
87 array('000','001','002','010','011','012','020','021','022'), // horiz 1
88 array('100','101','102','110','111','112','120','121','122'), // 2
89 array('200','201','202','210','211','212','220','221','222'), // 3
90 array('000','010','020','100','110','120','200','210','220'), // vert left
91 array('000','001','002','100','101','102','200','201','202'), // vert top
92 array('002','012','022','102','112','122','202','212','222'), // vert right
93 array('020','021','022','120','121','122','220','221','222'), // vert bot
94 array('010','011','012','110','111','112','210','211','212'), // left vertx
95 array('001','011','021','101','111','221','201','211','221'), // top vertx
96 array('000','001','002','110','111','112','220','221','222'), // diag top
97 array('020','021','022','110','111','112','200','201','202'), // diag bot
98 array('000','010','020','101','111','121','202','212','222'), // diag left
99 array('002','012','022','101','111','121','200','210','220'), // diag right
100 array('002','011','020','102','111','120','202','211','220'), // diag x
101 array('000','011','022','100','111','122','200','211','222') // diag x
106 private $winner = array(
107 array('000','001','002'), // board 0 winners - left corner across
108 array('000','010','020'), // down
109 array('000','011','022'), // diag
110 array('001','011','021'), // middle-top down
111 array('010','011','012'), // middle-left across
112 array('002','011','020'), // right-top diag
113 array('002','012','022'), // right-top down
114 array('020','021','022'), // bottom-left across
115 array('100','101','102'), // board 1 winners
116 array('100','110','120'),
117 array('100','111','122'),
118 array('101','111','121'),
119 array('110','111','112'),
120 array('102','111','120'),
121 array('102','112','122'),
122 array('120','121','122'),
123 array('200','201','202'), // board 2 winners
124 array('200','210','220'),
125 array('200','211','222'),
126 array('201','211','221'),
127 array('210','211','212'),
128 array('202','211','220'),
129 array('202','212','222'),
130 array('220','221','222'),
131 array('000','100','200'), // top-left corner 3d
132 array('000','101','202'),
133 array('000','110','220'),
134 array('000','111','222'),
135 array('001','101','201'), // top-middle 3d
136 array('001','111','221'),
137 array('002','102','202'), // top-right corner 3d
138 array('002','101','200'),
139 array('002','112','222'),
140 array('002','111','220'),
141 array('010','110','210'), // left-middle 3d
142 array('010','111','212'),
143 array('011','111','211'), // middle-middle 3d
144 array('012','112','212'), // right-middle 3d
145 array('012','111','210'),
146 array('020','120','220'), // bottom-left corner 3d
147 array('020','110','200'),
148 array('020','121','222'),
149 array('020','111','202'),
150 array('021','121','221'), // bottom-middle 3d
151 array('021','111','201'),
152 array('022','122','222'), // bottom-right corner 3d
153 array('022','121','220'),
154 array('022','112','202'),
155 array('022','111','200')
159 function __construct($dimen,$handicap,$mefirst,$yours,$mine) {
161 $this->handicap = (($handicap) ? 1 : 0);
162 $this->mefirst = (($mefirst) ? 1 : 0);
163 $this->yours = str_replace('XXX','',$yours);
165 $this->you = $this->parse_moves('you');
166 $this->me = $this->parse_moves('me');
169 $this->first_move = false;
174 if($this->first_move) {
176 $o .= '<div class="error-message">' . t('You go first...') . '</div><br />';
178 $o .= $this->draw_board();
181 $o .= '<div class="error-message">' . t('I\'m going first this time...') . ' </div><br />';
186 if($this->check_youwin()) {
187 $o .= '<div class="error-message">' . t('You won!') . '</div><br />';
188 $o .= $this->draw_board();
192 if($this->fullboard())
193 $o .= '<div class="error-message">' . t('"Cat" game!') . '</div><br />';
195 $move = $this->winning_move();
197 $this->mine .= $move;
198 $this->me = $this->parse_moves('me');
201 $move = $this->defensive_move();
203 $this->mine .= $move;
204 $this->me = $this->parse_moves('me');
207 $move = $this->offensive_move();
209 $this->mine .= $move;
210 $this->me = $this->parse_moves('me');
215 if($this->check_iwon())
216 $o .= '<div class="error-message">' . t('I won!') . '</div><br />';
217 if($this->fullboard())
218 $o .= '<div class="error-message">' . t('"Cat" game!') . '</div><br />';
219 $o .= $this->draw_board();
223 function parse_moves($player) {
229 while(strlen($str)) {
230 $ret[] = substr($str,0,3);
231 $str = substr($str,3);
237 function check_youwin() {
238 for($x = 0; $x < count($this->winner); $x ++) {
239 if(in_array($this->winner[$x][0],$this->you) && in_array($this->winner[$x][1],$this->you) && in_array($this->winner[$x][2],$this->you)) {
240 $this->winning_play = $this->winner[$x];
246 function check_iwon() {
247 for($x = 0; $x < count($this->winner); $x ++) {
248 if(in_array($this->winner[$x][0],$this->me) && in_array($this->winner[$x][1],$this->me) && in_array($this->winner[$x][2],$this->me)) {
249 $this->winning_play = $this->winner[$x];
255 function defensive_move() {
257 for($x = 0; $x < count($this->winner); $x ++) {
258 if(($this->handicap) && in_array('111',$this->winner[$x]))
260 if(in_array($this->winner[$x][0],$this->you) && in_array($this->winner[$x][1],$this->you) && (! in_array($this->winner[$x][2],$this->me)))
261 return($this->winner[$x][2]);
262 if(in_array($this->winner[$x][0],$this->you) && in_array($this->winner[$x][2],$this->you) && (! in_array($this->winner[$x][1],$this->me)))
263 return($this->winner[$x][1]);
264 if(in_array($this->winner[$x][1],$this->you) && in_array($this->winner[$x][2],$this->you) && (! in_array($this->winner[$x][0],$this->me)))
265 return($this->winner[$x][0]);
270 function winning_move() {
272 for($x = 0; $x < count($this->winner); $x ++) {
273 if(($this->handicap) && in_array('111',$this->winner[$x]))
275 if(in_array($this->winner[$x][0],$this->me) && in_array($this->winner[$x][1],$this->me) && (! in_array($this->winner[$x][2],$this->you)))
276 return($this->winner[$x][2]);
277 if(in_array($this->winner[$x][0],$this->me) && in_array($this->winner[$x][2],$this->me) && (! in_array($this->winner[$x][1],$this->you)))
278 return($this->winner[$x][1]);
279 if(in_array($this->winner[$x][1],$this->me) && in_array($this->winner[$x][2],$this->me) && (! in_array($this->winner[$x][0],$this->you)))
280 return($this->winner[$x][0]);
285 function offensive_move() {
287 shuffle($this->planes);
288 shuffle($this->winner);
289 shuffle($this->corners);
290 shuffle($this->crosses);
292 if(! count($this->me)) {
293 if($this->handicap) {
294 $p = $this->uncontested_plane();
295 foreach($this->corners as $c)
297 && (! $this->is_yours($c)) && (! $this->is_mine($c)))
301 if((! $this->marked_yours(1,1,1)) && (! $this->marked_mine(1,1,1)))
303 $p = $this->uncontested_plane();
304 foreach($this->crosses as $c)
306 && (! $this->is_yours($c)) && (! $this->is_mine($c)))
311 if($this->handicap) {
312 if(count($this->me) >= 1) {
313 if(count($this->get_corners($this->me)) == 1) {
314 if(in_array($this->me[0],$this->corners)) {
315 $p = $this->my_best_plane();
316 foreach($this->winner as $w) {
317 if((in_array($w[0],$this->you))
318 || (in_array($w[1],$this->you))
319 || (in_array($w[2],$this->you)))
321 if(in_array($w[0],$this->corners)
322 && in_array($w[2],$this->corners)
323 && in_array($w[0],$p) && in_array($w[2],$p)) {
324 if($this->me[0] == $w[0])
326 elseif($this->me[0] == $w[2])
333 $r = $this->get_corners($this->me);
335 $w1 = array(); $w2 = array();
336 foreach($this->winner as $w) {
337 if(in_array('111',$w))
339 if(($r[0] == $w[0]) || ($r[0] == $w[2]))
341 if(($r[1] == $w[0]) || ($r[1] == $w[2]))
344 if(count($w1) && count($w2)) {
347 if((in_array($a[0],$this->you))
348 || (in_array($a[1],$this->you))
349 || (in_array($a[2],$this->you))
350 || (in_array($b[0],$this->you))
351 || (in_array($b[1],$this->you))
352 || (in_array($b[2],$this->you)))
354 if(($a[0] == $b[0]) && ! $this->is_mine($a[0])) {
357 elseif(($a[2] == $b[2]) && ! $this->is_mine($a[2])) {
368 //&& (count($this->me) == 1) && (count($this->you) == 1)
369 // && in_array($this->you[0],$this->corners)
370 // && $this->is_neighbor($this->me[0],$this->you[0])) {
372 // Yuck. You foiled my plan. Since you obviously aren't playing to win,
373 // I'll try again. You may keep me busy for a few rounds, but I'm
374 // gonna' get you eventually.
376 // $p = $this->uncontested_plane();
377 // foreach($this->crosses as $c)
378 // if(in_array($c,$p))
384 // find all the winners containing my points.
385 $mywinners = array();
386 foreach($this->winner as $w)
387 foreach($this->me as $m)
388 if((in_array($m,$w)) && (! in_array($w,$mywinners)))
391 // find all the rules where my points are in the center.
393 if(count($mywinners)) {
394 foreach($mywinners as $w) {
395 foreach($this->me as $m) {
396 if(($m == $w[1]) && ($this->uncontested_winner($w))
397 && (! in_array($w,$trythese)))
404 for($p = 0; $p < count($this->planes); $p ++) {
405 if($this->handicap && in_array('111',$this->planes[$p]))
407 foreach($this->me as $m)
408 if((in_array($m,$this->planes[$p]))
409 && (! in_array($this->planes[$p],$myplanes)))
410 $myplanes[] = $this->planes[$p];
414 // find all winners which share an endpoint, and which are uncontested
415 $candidates = array();
416 if(count($trythese) && count($myplanes)) {
417 foreach($trythese as $t) {
418 foreach($this->winner as $w) {
419 if(! $this->uncontested_winner($w))
421 if((in_array($t[0],$w)) || (in_array($t[2],$w))) {
422 foreach($myplanes as $p)
423 if(in_array($w[0],$p) && in_array($w[1],$p) && in_array($w[2],$p) && ($w[1] != $this->me[0]))
424 if(! in_array($w,$candidates))
431 // Find out if we are about to force a win.
432 // Looking for two winning vectors with a common endpoint
433 // and where we own the middle of both - we are now going to
434 // grab the endpoint. The game isn't yet over but we've already won.
436 if(count($candidates)) {
437 foreach($candidates as $c) {
438 if(in_array($c[1],$this->me)) {
440 foreach($trythese as $t)
443 elseif($t[2] == $c[2])
448 // find opponents planes
449 $yourplanes = array();
450 for($p = 0; $p < count($this->planes); $p ++) {
451 if($this->handicap && in_array('111',$this->planes[$p]))
453 if(in_array($this->you[0],$this->planes[$p]))
454 $yourplanes[] = $this->planes[$p];
457 shuffle($this->winner);
458 foreach($candidates as $c) {
460 // We now have a list of winning strategy vectors for our second point
461 // Pick one that will force you into defensive mode.
462 // Pick a point close to you so we don't risk giving you two
463 // in a row when you block us. That would force *us* into
470 if(count($this->you) == 1) {
471 foreach($this->winner as $w) {
472 if(in_array($this->me[0], $w) && in_array($c[1],$w)
473 && $this->uncontested_winner($w)
474 && $this->is_neighbor($this->you[0],$c[1])) {
481 // You're somewhere else entirely or have made more than one move
482 // - any strategy vector which puts you on the defense will have to do
484 foreach($candidates as $c) {
485 foreach($this->winner as $w) {
486 if(in_array($this->me[0], $w) && in_array($c[1],$w)
487 && $this->uncontested_winner($w)) {
494 // worst case scenario, no strategy we can play,
495 // just find an empty space and take it
497 for($x = 0; $x < $this->dimen; $x ++)
498 for($y = 0; $y < $this->dimen; $y ++)
499 for($z = 0; $z < $this->dimen; $z ++)
500 if((! $this->marked_yours($x,$y,$z))
501 && (! $this->marked_mine($x,$y,$z))) {
502 if($this->handicap && $x == 1 && $y == 1 && $z == 1)
504 return(sprintf("%d%d%d",$x,$y,$z));
510 function marked_yours($x,$y,$z) {
511 $str = sprintf("%d%d%d",$x,$y,$z);
512 if(in_array($str,$this->you))
517 function marked_mine($x,$y,$z) {
518 $str = sprintf("%d%d%d",$x,$y,$z);
519 if(in_array($str,$this->me))
524 function is_yours($str) {
525 if(in_array($str,$this->you))
530 function is_mine($str) {
531 if(in_array($str,$this->me))
536 function get_corners($a) {
540 if(in_array($b,$this->corners))
545 function uncontested_winner($w) {
546 if($this->handicap && in_array('111',$w))
549 if(count($this->you)) {
550 foreach($this->you as $you)
551 if(in_array($you,$w))
554 return (($contested) ? false : true);
558 function is_neighbor($p1,$p2) {
559 list($x1,$y1,$z1) = sscanf($p1, "%1d%1d%1d");
560 list($x2,$y2,$z2) = sscanf($p2, "%1d%1d%1d");
562 if((($x1 == $x2) || ($x1 == $x2+1) || ($x1 == $x2-1)) &&
563 (($y1 == $y2) || ($y1 == $y2+1) || ($y1 == $y2-1)) &&
564 (($z1 == $z2) || ($z1 == $z2+1) || ($z1 == $z2-1)))
570 function my_best_plane() {
572 $second_choice = array();
573 shuffle($this->planes);
574 for($p = 0; $p < count($this->planes); $p ++ ) {
576 if($this->handicap && in_array('111',$this->planes[$p]))
578 if(! in_array($this->me[0],$this->planes[$p]))
580 foreach($this->you as $m) {
581 if(in_array($m,$this->planes[$p]))
585 return($this->planes[$p]);
587 $second_choice = $this->planes[$p];
589 return $second_choice;
598 function uncontested_plane() {
600 shuffle($this->planes);
603 for($p = 0; $p < count($pl); $p ++ ) {
604 if($this->handicap && in_array('111',$pl[$p]))
606 foreach($this->you as $m) {
607 if(in_array($m,$pl[$p]))
620 function fullboard() {
624 function draw_board() {
625 if(! strlen($this->yours))
626 $this->yours = 'XXX';
627 $o .= "<form action=\"tictac/{$this->handicap}/{$this->mefirst}/{$this->dimen}/{$this->yours}/{$this->mine}\" method=\"post\" />";
628 for($x = 0; $x < $this->dimen; $x ++) {
630 for($y = 0; $y < $this->dimen; $y ++) {
632 for($z = 0; $z < $this->dimen; $z ++) {
633 $s = sprintf("%d%d%d",$x,$y,$z);
634 $winner = ((is_array($this->winning_play) && in_array($s,$this->winning_play)) ? " color: #FF0000; " : "");
635 $bordertop = (($y != 0) ? " border-top: 2px solid #000;" : "");
636 $borderleft = (($z != 0) ? " border-left: 2px solid #000;" : "");
637 if($this->handicap && $x == 1 && $y == 1 && $z == 1)
638 $o .= "<td style=\"width: 25px; height: 25px; $bordertop $borderleft\" align=\"center\"> </td>";
639 elseif($this->marked_yours($x,$y,$z))
640 $o .= "<td style=\"width: 25px; height: 25px; $bordertop $borderleft $winner\" align=\"center\">X</td>";
641 elseif($this->marked_mine($x,$y,$z))
642 $o .= "<td style=\"width: 25px; height: 25px; $bordertop $borderleft $winner\" align=\"center\">O</td>";
644 $val = sprintf("%d%d%d",$x,$y,$z);
645 $o .= "<td style=\"width: 25px; height: 25px; $bordertop $borderleft\" align=\"center\"><input type=\"checkbox\" name=\"move\" value=\"$val\" onclick=\"this.form.submit();\" /></td>";
650 $o .= '</table><br />';