Added files

MoveBuilder.php

@@ -0,0 +1,67 @@
+<?php
+
+class MoveBuilder {
+    private $moves = array();
+    private $moveReferences = array();
+    private $pointer = 0;
+    private $currentIndex = 0;
+
+
+    public function __construct(){
+        $this->moveReferences[0] =& $this->moves;
+
+    }
+
+    public function addMoves($moveString){
+        $moves = explode(" ", $moveString);
+        foreach($moves as $move){
+            $this->addMove($move);
+        }
+    }
+
+    private function addMove($move){
+        if(!$move || $move == '..' || $move == '*' || strstr($move, '1-') || strstr($move, '-1') || strstr($move, '1/2')){
+            return;
+        }
+        $this->moveReferences[$this->pointer][] = array(CHESS_JSON::MOVE_NOTATION => $move);
+        $this->currentIndex ++;
+    }
+
+    public function addCommentBeforeFirstMove($comment){
+        $comment = trim($comment);
+        if(!strlen($comment)){
+            return;
+        }
+        $this->moveReferences[$this->pointer][] = array();
+        $this->addComment($comment);
+    }
+
+    public function addComment($comment){
+        $comment = trim($comment);
+        if(!strlen($comment)){
+            return;
+        }
+        $index = count($this->moveReferences[$this->pointer])-1;
+        $this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_COMMENT] = $comment;
+    }
+
+    public function startVariation(){
+        $index = count($this->moveReferences[$this->pointer])-1;
+        if(!isset($this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_VARIATIONS])){
+            $this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_VARIATIONS] = array();
+        }
+        $countVariations = count($this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_VARIATIONS]);
+        $this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_VARIATIONS][$countVariations] = array();
+        $this->moveReferences[] =& $this->moveReferences[$this->pointer][$index][CHESS_JSON::MOVE_VARIATIONS][$countVariations];
+        $this->pointer++;
+    }
+
+    public function endVariation(){
+        array_pop($this->moveReferences);
+        $this->pointer--;
+    }
+
+    public function getMoves(){
+        return $this->moves;
+    }
+}