/// <summary>
/// Creates new Rectange Body
/// </summary>
/// <param name="height">Height of the Body</param>
/// <param name="width">Width of the Body</param>
/// <param name="mass">Mass of the Body</param>
/// <param name="position">Initial Direction and Linear Position of the Body</param>
/// <returns>Return the new value of the BasePolygonBody</returns>
/// <remarks>The Guid of new Body will be stored in Body.Tags["Guid"]. The raw Colored Drawable of new Body will be stored in Body.Tags["Drawable"].</remarks>
public static Body CreateRectangle(Scalar height, Scalar width, Scalar mass, ALVector2D position)
{
var vertices = VertexHelper.CreateRectangle(width, height);
vertices = VertexHelper.Subdivide(vertices, Math.Min(height, width) / 5);
var boxShape = ShapeFactory.GetOrCreateColoredPolygonShape(vertices, Math.Min(height, width) / 5);
var newBody = new Body(new PhysicsState(position), boxShape, mass, Coefficients.Duplicate(), new Lifespan());
return(newBody);
}
public static DisposeCallback BasicDemoSetup(DemoOpenInfo info)
{
DisposeCallback dispose = null;
IShape bombShape = ShapeFactory.CreateSprite(Cache <SurfacePolygons> .GetItem("rocket.png"), 2, 16, 3);
dispose += DemoHelper.RegisterBombLaunching(info, bombShape, 120);
dispose += DemoHelper.RegisterMousePicking(info);
dispose += DemoHelper.RegisterBodyStreamSpawning(info,
new Body(new PhysicsState(), ParticleShape.Default, 1, Coefficients.Duplicate(), new Lifespan(.5f)), 2, 120, 1000, Key.B);
dispose += DemoHelper.RegisterMaintainSpawning(info, SdlDotNet.Input.Key.N,
delegate(Vector2D position)
{
ExplosionLogic result = new ExplosionLogic(position, Vector2D.Zero, 9000, .1f, 600, new Lifespan(.25f));
info.Scene.Engine.AddLogic(result);
return(result);
});
List <RaySegment> segments = new List <RaySegment>();
for (Scalar angle = 0; angle < MathHelper.PiOver2; angle += .05f)
{
RaySegment seg = new RaySegment();
seg.Length = 500;
seg.RayInstance = new Ray(Vector2D.Zero, Vector2D.FromLengthAndAngle(1, angle));
segments.Add(seg);
}
IShape rayShape = ShapeFactory.CreateRays(segments.ToArray());
dispose += DemoHelper.RegisterMaintainSpawning(info, SdlDotNet.Input.Key.M,
delegate(Vector2D position)
{
Body lazer = new Body(new PhysicsState(), rayShape, 1, new Coefficients(1, 1), new Lifespan());
lazer.State.Position.Linear = position;
lazer.State.Velocity.Angular = .91f;
lazer.IgnoresGravity = true;
lazer.ApplyPosition();
info.Scene.AddGraphic(CreateGraphic(lazer));
return(lazer);
});
return(dispose);
}