code: package ontology.effects.unary;
  
  import core.vgdl.VGDLSprite;
  import core.content.InteractionContent;
  import core.game.Game;
  import ontology.effects.Effect;
  
  /**
   * Created with IntelliJ IDEA.
   * User: Diego
   * Date: 23/10/13
   * Time: 15:21
   * This is a Java port from Tom Schaul's VGDL - https://github.com/schaul/py-vgdl
   */
  public class WaterPhysics extends Effect {
  
      public WaterPhysics(InteractionContent cnt)
      {
          this.parseParameters(cnt);
      }
  
      @Override
      public void execute(VGDLSprite sprite1, VGDLSprite sprite2, Game game) {
          sprite1.gravity = 0.2;
      }
  }
  