public class Shot extends GameItem
{
    public static final double DEFAULT_RADIUS = 0.03;
    public static final double SHOT_DURATION = 3.0;
    public static final double SHOT_DAMAGE = 0.27;

    public long createTime;
    public Integer id;

    public Shot(Integer id, long createTime, double x, double y)
    {
        this.id = id;
        this.createTime = createTime;
        this.radius = DEFAULT_RADIUS;
        this.x = x;
        this.y = y;
        this.dx = 0;
        this.dy = 0;
    }
    
    public boolean equals(Shot other)
    {
        return this.createTime == other.createTime &&
               this.radius == other.radius &&
               this.x == other.x &&
               this.y == other.y &&
               this.dx == other.dx &&
               this.dy == other.dy;
    }

    public String toString()
    {
        return String.format("%d:%.3f:%.3f:%.3f:%.3f:%.3f",
               id, radius, x, y, dx, dy);
    }
}