package greenfoot.collision;

import greenfoot.Actor;
import greenfoot.ActorVisitor;




| Checks a collision against a point.
|
| @author Poul Henriksen
|
public class PointCollisionQuery
implements CollisionQuery{    
   private int x;
   
   private int y;
   
   private Class<?> cls;
    
   
   


| Set the point collision query parameters.
| @param x   The X co-ordinate (in pixels)
| @param y   The Y co-ordinate (in pixels)
| @param cls   The class of actors to locate. If null, locate any actor.
|
public void init(int x, int y, Class<?> cls)
   {        
      this.x = x;
       
      this.y = y;
       
      this.cls = cls;     
      }

   
   

|
| @see greenfoot.collision.CollisionQuery#checkCollision(greenfoot.Actor)
|
public boolean checkCollision(Actor actor)
   {
      if (cls != null && !cls.isInstance(actor)) {            
         return false;         
         }
      return ActorVisitor.containsPoint(actor, x, y);     
      } 
   }