Do not allow using same word number cell

demo.php

@@ -43,7 +43,7 @@
 	<? endforeach; ?>
 	</select>
 
-	Colors:
+	Debug:
 	<input type="checkbox" name="colors" value="1" <? if (!empty($_REQUEST['colors'])) echo 'checked'; ?> />
 
 	Big blocks?:

index.php

@@ -53,20 +53,10 @@
 	<li>Colored debugging</li>
 </ul>
 
-<h3>TODO</h3>
-
-<ul>
-	<li>API Documentation</li>
-	<li>Installation instructions</li>
-	<li>Client Java Applet</li>
-	<li>More databases support...</li>
-</ul>
-
-
 <hr size="1" />
 
 &copy; Laurynas Butkus (laurynas.butkus at gmail.com), 2005
 
 
 </body>
-</html>
+</html>

lib/php_crossword.class.php

@@ -811,4 +811,4 @@ function generateFromWords($words_list)
 	}
 
 }
-?>
+?>

lib/php_crossword_grid.class.php

@@ -118,11 +118,13 @@ function placeWord($word, $x, $y, $axis)
 		{
 			$s = $x;
 			$c =& $cx;
+			$t =& $cy;
 		}
 		else
 		{
 			$s = $y;
 			$c =& $cy;
+			$t =& $cx;
 		}
 
 		// dump( "PLACING WORD: $cx x $cy - {$w->word}" );
@@ -139,15 +141,21 @@ function placeWord($word, $x, $y, $axis)
 		// disable cell before first cell
 		$c = $s - 1;
 		if ($c >= 0 )
-		$this->cells[$cx][$cy]->setCanCross(PC_AXIS_BOTH, FALSE);
+			$this->cells[$cx][$cy]->setCanCross(PC_AXIS_BOTH, FALSE);
 
 		$this->cells[$cx][$cy]->number = $w->inum; // sandy addition
 
-		// disable cell after first cell
+		// disable cell after last cell
 		$c = $s + strlen($word);
 		if (is_object($this->cells[$cx][$cy]))
-		$this->cells[$cx][$cy]->setCanCross(PC_AXIS_BOTH, FALSE);
+			$this->cells[$cx][$cy]->setCanCross(PC_AXIS_BOTH, FALSE);
 
+		// avoid starting "corner word" - which would use the same
+		// number cell as this word
+		$c = $s - 1;
+		$t = $t + 1;
+		if ($c >= 0 && is_object($this->cells[$cx][$cy]))
+			$this->cells[$cx][$cy]->setCanCross(PC_AXIS_BOTH, FALSE);
 	}
 
 	/**
@@ -387,4 +395,4 @@ function getHTML($params = array())
 		return $html;
 	}
 }
-?>
+?>