Added helper classes: Rectangle, Point, Color

src/Color.php

@@ -0,0 +1,25 @@
+<?php
+namespace GIFEndec;
+
+class Color
+{
+    /**
+     * @var int Color index
+     */
+    public $index = -1;
+
+    /**
+     * @var int Red component
+     */
+    public $red = -1;
+
+    /**
+     * @var int Green component
+     */
+    public $green = -1;
+
+    /**
+     * @var int Blue component
+     */
+    public $blue = -1;
+}

src/Geometry/Point.php

@@ -0,0 +1,37 @@
+<?php
+namespace GIFEndec\Geometry;
+
+class Point
+{
+    /* @var int */
+    protected $x;
+
+    /* @var int */
+    protected $y;
+
+    /**
+     * @param int $x
+     * @param int $y
+     */
+    public function __construct($x, $y)
+    {
+        $this->x = $x;
+        $this->y = $y;
+    }
+
+    /**
+     * @return int
+     */
+    public function getX()
+    {
+        return $this->x;
+    }
+
+    /**
+     * @return int
+     */
+    public function getY()
+    {
+        return $this->y;
+    }
+}

src/Geometry/Rectangle.php

@@ -0,0 +1,37 @@
+<?php
+namespace GIFEndec\Geometry;
+
+class Rectangle
+{
+    /* @var int */
+    protected $width;
+
+    /* @var int */
+    protected $height;
+
+    /**
+     * @param int $width
+     * @param int $height
+     */
+    public function __construct($width, $height)
+    {
+        $this->width = $width;
+        $this->height = $height;
+    }
+
+    /**
+     * @return int
+     */
+    public function getWidth()
+    {
+        return $this->width;
+    }
+
+    /**
+     * @return int
+     */
+    public function getHeight()
+    {
+        return $this->height;
+    }
+}