protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
Touches = TouchPanel.GetState();
simulator.BeginWrite();
simulator.SetSourcePosition(-Vector2.One * 2);
if (Touches.Count > 0)
{
HandleInput(Mode);
}
//add rain
//simulator.Write(Pixel, new Rectangle(random.Next(0, simulator.Width), random.Next(0, simulator.Height), 1, 1), new Color(1, 0, 0, 1), WriteMode.Height);
simulator.EndWrite();
simulator.Simulate(1f / 120, 4);
base.Update(gameTime);
}
private void HandleInput(WriteMode mode)
{
simulator.BeginWrite();
var pos = mouse.Position * simulator.Width / graphics.PreferredBackBufferWidth;
//point
if (mouse.LeftClick)
{
simulator.SetSourcePosition(pos);
}
else
{
simulator.SetSourcePosition(Vector2.One * -10);
}
if (mouse.RightClick)
{
simulator.Write(Pixel, new Rectangle((int)pos.X - 20, (int)pos.Y - 20, 40, 40), WriteMode.Clear);
}
//clear
if (keyboard.KeyPressed(Keys.R))
{
simulator.ClearField();
}
//half-circle
if (keyboard.Key(Keys.C))
{
simulator.Write(Circle, pos - Vector2.One * Circle.Width / 2, mode);
}
//square
if (keyboard.Key(Keys.S))
{
simulator.Write(Pixel, new Rectangle((int)pos.X, (int)pos.Y, 5, 5), mode);
}
//horizontal
if (keyboard.Key(Keys.H))
{
simulator.Write(Pixel, new Rectangle((int)pos.X, (int)pos.Y, 200, 2), mode);
}
//vertical
if (keyboard.Key(Keys.V))
{
simulator.Write(Pixel, new Rectangle((int)pos.X, (int)pos.Y, 2, 200), mode);
}
simulator.EndWrite();
}