■ 데스크톱에서 눈송이(snowflake)를 내리는 방법을 보여준다.
▶ Snowflake.cs
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using System; using System.Drawing; using System.Windows.Forms; namespace TestProject { /// <summary> /// 눈송이 /// </summary> public class Snowflake : PictureBox { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 난수기 /// </summary> private Random random = new Random(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Snowflake() /// <summary> /// 생성자 /// </summary> public Snowflake() { Create(); Move(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 타이머 틱 처리하기 - timer_Tick(sender, e) /// <summary> /// 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Tick(object sender, EventArgs e) { Location += new Size(1, 3); if(Location.X > Screen.PrimaryScreen.Bounds.Width || Location.Y > Screen.PrimaryScreen.Bounds.Height) { Location = new Point ( this.random.Next(-Screen.PrimaryScreen.Bounds.Width , Screen.PrimaryScreen.Bounds.Width ), this.random.Next(-Screen.PrimaryScreen.Bounds.Height, Screen.PrimaryScreen.Bounds.Height) ); } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 생성하기 - Create() /// <summary> /// 생성하기 /// </summary> private void Create() { Location = new Point ( this.random.Next(-Screen.PrimaryScreen.Bounds.Width , Screen.PrimaryScreen.Bounds.Width ), this.random.Next(-Screen.PrimaryScreen.Bounds.Height, Screen.PrimaryScreen.Bounds.Height) ); MinimumSize = new Size(7, 7); Size = new Size(10, 10); BackgroundImage = Image.FromFile("snowflake.jpg"); } #endregion #region 이동하기 - Move() /// <summary> /// 이동하기 /// </summary> private new void Move() { Timer timer = new Timer(); timer.Interval = 40; timer.Tick += timer_Tick; timer.Start(); } #endregion } } |
▶ MainForm.cs
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using System; using System.Drawing; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 눈송이 카운트 /// </summary> private readonly int snowflakeCount = 40; /// <summary> /// 눈송이 배열 /// </summary> private Snowflake[] snowflakeArray; /// <summary> /// 인덱스 /// </summary> private int index = 0; /// <summary> /// 타이머 /// </summary> private Timer timer; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Load += Form_Load; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { Location = new Point(0, 0); Size = Screen.PrimaryScreen.Bounds.Size + (new Size(20, 20)); TopMost = true; FormBorderStyle = FormBorderStyle.None; BackColor = Color.Black; TransparencyKey = Color.Black; this.snowflakeArray = new Snowflake[this.snowflakeCount]; this.timer = new Timer(); this.timer.Interval = 1000; this.timer.Tick += timer_Tick; this.timer.Start(); } #endregion #region 타이머 틱 처리하기 - timer_Tick(sender, e) /// <summary> /// 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Tick(object sender, EventArgs e) { if(this.index >= this.snowflakeCount) { this.timer.Stop(); return; } this.snowflakeArray[index] = new Snowflake(); Controls.Add(this.snowflakeArray[this.index]); this.index++; } #endregion } } |
