public override void Step(Box2D.XNA.TestBed.Framework.Settings settings)
{
ContactManager cm = _world.GetContactManager();
int height = cm._broadPhase.ComputeHeight();
int leafCount = cm._broadPhase.ProxyCount;
int minimumNodeCount = 2 * leafCount - 1;
float minimumHeight = (float)(Math.Ceiling(Math.Log((double)minimumNodeCount) / Math.Log(2.0)));
_debugDraw.DrawString(5, _textLine, string.Format("dynamic tree height = {0}, min = {1}", height, minimumHeight));
_textLine += 15;
base.Step(settings);
}
public override void Step(Box2D.XNA.TestBed.Framework.Settings settings)
{
bool advanceRay = settings.pause == 0 || settings.singleStep != 0;
base.Step(settings);
_debugDraw.DrawString(5, _textLine, "Press 1-5 to drop stuff");
_textLine += 15;
float L = 25.0f;
Vector2 point1 = new Vector2(0.0f, 10.0f);
Vector2 d = new Vector2(L * (float)Math.Cos(_angle), -L * Math.Abs((float)Math.Sin(_angle)));
Vector2 point2 = point1 + d;
_world.RayCast((fixture, point, normal, fraction) =>
{
_fixture = fixture;
_point = point;
_normal = normal;
return(fraction);
}, point1, point2);
if (_fixture != null)
{
_debugDraw.DrawPoint(_point, .5f, new Color(0.4f, 0.9f, 0.4f));
_debugDraw.DrawSegment(point1, _point, new Color(0.8f, 0.8f, 0.8f));
Vector2 head = _point + 0.5f * _normal;
_debugDraw.DrawSegment(_point, head, new Color(0.9f, 0.9f, 0.4f));
}
else
{
_debugDraw.DrawSegment(point1, point2, new Color(0.8f, 0.8f, 0.8f));
}
if (advanceRay)
{
_angle += 0.25f * (float)Math.PI / 180.0f;
}
}
public override void Step(Box2D.XNA.TestBed.Framework.Settings settings)
{
base.Step(settings);
_debugDraw.DrawString(5, _textLine, "This tests various character collision shapes");
_textLine += 15;
}