void AddAnchorDotToSprite (SKSpriteNode sprite)
{
CGPath myPath = new CGPath ();
myPath.AddArc (0, 0, 10, 0, (float) Math.PI * 2, true);
myPath.CloseSubpath ();
SKShapeNode dot = new SKShapeNode () {
Path = myPath,
FillColor = UIColor.Green,
LineWidth = 0.0f
};
sprite.AddChild (dot);
}
void AddAnchorDotToSprite(SKSpriteNode sprite)
{
CGPath myPath = new CGPath();
myPath.AddArc(0, 0, 10, 0, (float)Math.PI * 2, true);
myPath.CloseSubpath();
SKShapeNode dot = new SKShapeNode()
{
Path = myPath,
FillColor = UIColor.Green,
LineWidth = 0.0f
};
sprite.AddChild(dot);
}
/// <summary>
/// Подсвечивание выбранного камешка заменой текстуры в спрайте
/// </summary>
/// <param name="gem">Камешек на подстветку.</param>
private void ShowSelectionIndicator(Gem gem)
{
// Открепляем спрайт от родителя, если он есть
if (selectedSprite.Parent != null)
{
selectedSprite.RemoveFromParent();
}
SKSpriteNode sprite = gem.Sprite;
SKTexture texture = SKTexture.FromImageNamed(gem.GetSelectedSpriteName());
selectedSprite.Size = new CGSize(gemCellWidth, gemCellHeight);
selectedSprite.RunAction(SKAction.SetTexture(texture));
// "Подсветка" добавляется в качестве потомка к основному спрайту камешка
sprite.AddChild(selectedSprite);
selectedSprite.Alpha = 1.0f;
}
/// <summary>
/// Initializes a new instance of the <see cref="Boing.BoingScene"/> class.
/// </summary>
/// <param name="size">Size of the scene in screen units.</param>
public BoingScene(SizeF size)
: base(size)
{
this.ScaleMode = SKSceneScaleMode.AspectFill;
// We're true retro fans, so let's use the correct background color of the Amiga original version.
this.BackgroundColor = UIColor.FromRGB (0, 0, 0);
// Create the background grid and add it to the center of the scene.
var gridNode = CreateBackgroundNode (this.Frame.Size);
gridNode.Position = new PointF (0, 0);
this.AddChild (gridNode);
// Create our bouncing ball sprite.
this.ballNode = CreateBallNode (true);
// Add the ball to the scene.
this.AddChild (this.ballNode);
// Place the ball in the center of the screen to start.
this.ballNode.Position = new PointF (this.Frame.Width * .5f, this.Frame.Height - this.ballNode.Frame.Height * .5f);
// Create a shadow version of the ball. This does not have physics and gets repositioned whenever the ball itself has moved.
var ballShadowNode = CreateBallNode (false);
ballShadowNode.Alpha = 0.8f;
ballShadowNode.Color = UIColor.Black;
ballShadowNode.ColorBlendFactor = 0.8f;
ballShadowNode.Position = new PointF (SHADOW_OFFSET, -SHADOW_OFFSET);
ballShadowNode.ZPosition = this.ballNode.ZPosition - 1;
// Add the shadow as a child to the ball.
ballNode.AddChild (ballShadowNode);
// Let our scene have some gravity that is way lower then real earth's gravity, so the ball bounces nice and slowly.
this.PhysicsWorld.Gravity = new CGVector (0, -1.5f);
// Create some walls around the scene to make the ball bounce.
this.PhysicsBody = SKPhysicsBody.BodyWithEdgeLoopFromRect (this.Frame);
// Let the collission detection system know that this is a wall.
this.PhysicsBody.SetCategoryBitMask (CONTACT_BITS.Wall);
// Xamarin nicely wraps the SKPhysicsWorldDelegate protocol into C# events.
this.PhysicsWorld.DidBeginContact += this.HandleDidBeginContact;
// And for fancyness: let it snow! This demonstrated how to easily load a particle system that was created using Xcode's particle editor.
var particleSystem = NSKeyedUnarchiver.UnarchiveFile ("./assets/SnowParticles.sks") as SKEmitterNode;
particleSystem.Position = new PointF (this.Frame.Width * .5f, this.Frame.Height);
particleSystem.Name = "SnowParticle";
this.particleRate = particleSystem.ParticleBirthRate;
// Turn snow off initially.
particleSystem.ParticleBirthRate = 0;
particleSystem.ParticleTexture = SKTexture.FromImageNamed ("./assets/spark.png");
this.AddChild(particleSystem);
// Init ramdomizer.
this.rand = new Random ();
}