/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
TargetElapsedTime = TimeSpan.FromSeconds(1.0f / 60.0f);
InitializeClient();
// Initialize the random number generator
random = new Random(DateTime.Now.Millisecond);
connectForm.Show();
// Allow the user to see their mouse
IsMouseVisible = true;
oldMouseState = Mouse.GetState();
oldKeyboardState = Keyboard.GetState();
MainColorDelegate = new ColorDelegate(theColor => { paintBrush.brushColor = theColor; });
SecondaryColorDelegate = new ColorDelegate(theColor => { eraseBrush.brushColor = theColor; });
ResetColorDelegate = new ColorDelegate(InitializePaintImage);
outputForm = new OutputForm();
// Set the brush color to black
paintBrush = new PaintBrush(Color.Black, 255, 1.0f, 1.0f, BrushType.circle);
eraseBrush = new PaintBrush(Color.White, 255, 1.0f, 1.0f, BrushType.circle);
// Initialize the paint image
InitializePaintImage(Color.White);
// Initialize the paint pallet
InitializePaintPallet();
base.Initialize();
}
// Output text to the console
private void OutputText(string text)
{
if (outputForm == null || outputForm.IsDisposed)
{
outputForm = new OutputForm();
}
outputForm.OutputText(text);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
try
{
MouseState currentMouseState = Mouse.GetState();
KeyboardState currentKeyboardState = Keyboard.GetState();
HandleIM();
// Make the brush more opaque
if (currentKeyboardState.IsKeyDown(Keys.Add))
{
paintBrush.SetAlpha((byte)(paintBrush.brushColor.A + 1));
}
// Make the brush more transparent
if (currentKeyboardState.IsKeyDown(Keys.Subtract))
{
paintBrush.SetAlpha((byte)(paintBrush.brushColor.A - 1));
}
// Set the alpha of the brush to 255 (opaque)
if (currentKeyboardState.IsKeyDown(Keys.PageUp))
{
paintBrush.SetAlpha(255);
}
// Set the alpha of the brush to 0 (transparent)
if (currentKeyboardState.IsKeyDown(Keys.PageDown))
{
paintBrush.SetAlpha(0);
}
// Set the brush color the the color of the pixel under the mouse
if (currentKeyboardState.IsKeyDown(Keys.P) && oldKeyboardState.IsKeyUp(Keys.P))
{
paintBrush.brushColor = paintImage.GetPixelColor(new Vector2(currentMouseState.Position.X, currentMouseState.Position.Y));
}
// Open color picker dialog for main brush
if (currentKeyboardState.IsKeyDown(Keys.C) && oldKeyboardState.IsKeyUp(Keys.C))
{
Program.ShowMainColorDialog();
}
// Open color picker dialog for eraser
if (currentKeyboardState.IsKeyDown(Keys.E) && oldKeyboardState.IsKeyUp(Keys.E))
{
Program.ShowSecondaryColorDialog();
}
// Toggle the output form
if (currentKeyboardState.IsKeyDown(Keys.OemTilde) && oldKeyboardState.IsKeyUp(Keys.OemTilde))
{
if (outputForm.IsDisposed || outputForm == null)
{
outputForm = new OutputForm();
}
if (!outputForm.Visible)
{
outputForm.Show();
}
else
{
outputForm.Hide();
}
}
// Change the brush size using the scroll wheel
int dV = (currentMouseState.ScrollWheelValue - oldMouseState.ScrollWheelValue) / 100;
paintBrush.brushSize = (paintBrush.brushSize + dV < 1.0f ? 1.0f : (paintBrush.brushSize + dV > 25.0f ? 25.0f : paintBrush.brushSize + dV));
eraseBrush.brushSize = paintBrush.brushSize;
// Change between square and circle brushes
if (currentKeyboardState.IsKeyDown(Keys.B) && oldKeyboardState.IsKeyUp(Keys.B))
{
if (paintBrush.brushType == BrushType.circle)
{
paintBrush.brushType = BrushType.square;
eraseBrush.brushType = BrushType.square;
}
else
{
paintBrush.brushType = BrushType.circle;
eraseBrush.brushType = BrushType.circle;
}
}
// If the user is clicking, draw stuff!
if (currentMouseState.LeftButton == ButtonState.Pressed)
{
paintPallet.PaintLine(oldMouseState.Position.ToVector2(), currentMouseState.Position.ToVector2(), paintBrush);
DrawLine(oldMouseState.Position.ToVector2(), currentMouseState.Position.ToVector2(), paintBrush);
}
else if (currentMouseState.RightButton == ButtonState.Pressed)
{
paintPallet.PaintLine(oldMouseState.Position.ToVector2(), currentMouseState.Position.ToVector2(), eraseBrush);
DrawLine(oldMouseState.Position.ToVector2(), currentMouseState.Position.ToVector2(), eraseBrush);
}
// Draw some kind of strange circle or square
if (currentKeyboardState.IsKeyDown(Keys.W) && oldKeyboardState.IsKeyUp(Keys.W))
{
paintPallet.PaintStrangeShape(currentMouseState.Position.ToVector2(), paintBrush, eraseBrush, DateTime.Now.Millisecond, false);
DrawStrangeShape(currentMouseState.Position.ToVector2(), paintBrush, eraseBrush, DateTime.Now.Millisecond, false);
}
// Draw some kind of strange circle and square combo
if (currentKeyboardState.IsKeyDown(Keys.S) && oldKeyboardState.IsKeyUp(Keys.S))
{
paintPallet.PaintStrangeShape(currentMouseState.Position.ToVector2(), paintBrush, eraseBrush, DateTime.Now.Millisecond, true);
DrawStrangeShape(currentMouseState.Position.ToVector2(), paintBrush, eraseBrush, DateTime.Now.Millisecond, true);
}
// Update all of the buttons in the toolbar
toolBar.Update(currentMouseState, oldMouseState);
oldMouseState = currentMouseState;
oldKeyboardState = currentKeyboardState;
}
catch (Exception e)
{
OutputText("Exception: " + e.Message);
}
base.Update(gameTime);
}