1: <?php
 2: 
 3: namespace Quadtree;
 4: 
 5: interface ICollisionDetector
 6: {
 7:     /**
 8:      * Test if insertable item intersects with bounds
 9:      * @param \Quadtree\Geometry\Bounds $bounds
10:      * @param \Quadtree\Insertable $item
11:      * @return boolean
12:      */
13:     function intersects(Geometry\Bounds $bounds, Insertable $item);
14:     
15:     /**
16:      * Test if new item collides with collection of items
17:      * @param \Quadtree\Insertable[] $insertedItems
18:      * @param \Quadtree\Insertable $item
19:      * @return boolean
20:      */
21:     function collide(array $insertedItems, Insertable $item);
22: }
23: