namespace AirBomber.MovementStrategy
{
    public class MoveToDownRightStrategy : AbstractStrategy
    {
        protected override bool IsTargetDestination()
        {
            ObjectParameters? ObjParams = ObjectParameters;
            if (ObjParams is null)
                return false;

            return
                ObjParams.RightBorder <= FieldWidth &&
                ObjParams.RightBorder + GetStep() >= FieldWidth &&
                ObjParams.BottomBorder <= FieldHeight &&
                ObjParams.BottomBorder + GetStep() >= FieldHeight;
        }

        protected override void MoveToTarget()
        {
            ObjectParameters? ObjParams = ObjectParameters;
            if (ObjParams is null)
                return;

            float diffX = ObjParams.RightBorder - FieldWidth;
            if (Math.Abs(diffX) > GetStep())
            {
                if (diffX > 0)
                    MoveLeft();
                else
                    MoveRight();
            }

            float diffY = ObjParams.BottomBorder - FieldHeight;
            if (Math.Abs(diffY) > GetStep())
            {
                if (diffY > 0)
                    MoveUp();
                else
                    MoveDown();
            }
        }
    }
}