/// <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()
{
metaballTarget = new RenderTarget2D(GraphicsDevice, GraphicsDevice.Viewport.Width,
GraphicsDevice.Viewport.Height);
controller = new ParticleHydrodynamics2Controller(2.0f, 2048);
world.Add(controller);
base.Initialize();
}
private void HandleInput()
{
input.Update();
if (input.Pad.Is.Press(Buttons.Back) || input.Key.Is.Press(Keys.Escape))
{
Exit();
}
if (input.Key.Is.Press(Keys.R))
{
Reset(Preset.Lava());
}
if (input.Key.Is.Press(Keys.T))
{
Reset(Preset.Water());
}
if (input.Key.Is.Press(Keys.G))
{
isGravity = !isGravity;
if (isGravity)
{
world.Remove(controller);
controller = new ParticleHydrodynamics2Controller(2.0f, 2048);
world.Add(controller);
foreach (var metaball in metaballs)
{
controller.AddParticle(metaball.Position, metaball.Trajectory * metaball.Velocity);
}
}
}
bool valModified = false;
preset.GlowFactor = HandleFloatInput(Keys.Q, Keys.W, .1f, preset.GlowFactor, ref valModified).Clamp(0f, 1f);
numberOfMetaballs = HandleIntInput(Keys.A, Keys.S, 1, numberOfMetaballs, ref valModified)
.Clamp(0, int.MaxValue);
bool textureModified = false;
preset.Glow = HandleColorInput(Keys.NumPad7, Keys.NumPad8, Keys.NumPad9, preset.Glow, ref textureModified);
preset.GradientInner = HandleColorInput(Keys.NumPad4, Keys.NumPad5, Keys.NumPad6, preset.GradientInner,
ref textureModified);
preset.GradientOuter = HandleColorInput(Keys.NumPad1, Keys.NumPad2, Keys.NumPad3, preset.GradientOuter,
ref textureModified);
preset.MaxDistance =
HandleFloatInput(Keys.Y, Keys.X, .01f, preset.MaxDistance, ref textureModified, true).Clamp(0f, 1f);
preset.ScalingFactor =
HandleFloatInput(Keys.C, Keys.V, .01f, preset.ScalingFactor, ref textureModified, true).Clamp(0f, 1f);
preset.Size = HandleIntInput(Keys.B, Keys.N, 1, preset.Size, ref textureModified, true)
.Clamp(0, int.MaxValue);
if (textureModified)
{
RecreateTexture();
}
AdjustNumberOfMetaballs();
}