public void EarthForce()
{
GravitationalForce g = new GravitationalForce(Constants.Earth.MASS);
Assert.That(g.compute(1.0), Is.EqualTo(G * Constants.Earth.MASS));
Assert.That(g.compute(1e6), Is.EqualTo(G * Constants.Earth.MASS / 1e12));
}
public static void Tick()
{
if (gamePause)
{
return;
}
game.gamePictureBox.Invalidate();
GravitationalForce.EnactGravity();
foreach (IBehaviour b in tickables)
{
b.onUpdate();
}
foreach (IBehaviour b in addables)
{
tickables.Add(b);
}
foreach (IBehaviour b in removables)
{
tickables.Remove(b);
}
_addables = new List <IBehaviour>();
_removables = new List <IBehaviour>();
}
public void EarthMoonForce()
{
GravitationalForce g = new GravitationalForce(Constants.Earth.MASS, Constants.Moon.MASS);
double d = 370.149120e6;
double f = G * Constants.Earth.MASS * Constants.Moon.MASS / (d * d);
Assert.That(g.compute(d), Is.EqualTo(f));
}
void Update()
{
//Debug.Log(1.0f / Time.deltaTime);
if (!simulate)
{
return;
}
//Another way to do fps
float dt = Time.deltaTime;
fps = (1.0f / dt);
fpsAverage = (fpsAverage * smoothing) + (fps * (1.0f - smoothing));
fpsText.value = "FPS: " + fpsAverage.ToString("F1");
//Debug.Log(fps);
timeAccumulator += Time.deltaTime;
GravitationalForce.ApplyForce(bodies, gravitation.value);
//bodies.ForEach(body => body.shape.color = Color.red);
while (timeAccumulator >= fixedDeltaTime)
{
bodies.ForEach(body => body.Step(fixedDeltaTime));
bodies.ForEach(body => Integrator.ImplicitEuler(body, fixedDeltaTime));
bodies.ForEach(body => body.shape.color = Color.cyan);
if (collision)
{
Collision.CreateContacts(bodies, out List <Contact> contacts);
contacts.ForEach(contact => { contact.bodyA.shape.color = Color.red; contact.bodyB.shape.color = Color.red; });
ContactSolver.Resolve(contacts);
}
timeAccumulator = timeAccumulator - fixedDeltaTime;
}
if (wrap)
{
bodies.ForEach(body => body.position = Utilities.Wrap(body.position, -size, size));
}
bodies.ForEach(body => body.force = Vector2.zero);
bodies.ForEach(body => body.acceleration = Vector2.zero);
}
void Update()
{
float dt = Time.deltaTime;
fps = 1.0f / dt;
fpsAverage = (fpsAverage * smoothing) + (fps * (1.0f - smoothing));
fpsText.value = "FPS: " + fpsAverage.ToString("F1");
if (!simulate.value)
{
return;
}
GravitationalForce.ApplyForce(bodies, gravitation.value);
springs.ForEach(spring => spring.ApplyForce());
timeAccumulator += dt;
while (timeAccumulator > fixedDeltaTime)
{
bodies.ForEach(body => body.Step(fixedDeltaTime));
bodies.ForEach(body => Integrator.ExplicitEuler(body, fixedDeltaTime));
bodies.ForEach(body => body.shape.color = Color.white);
if (collision == true)
{
Collision.CreateContacts(bodies, out List <Contact> contacts);
contacts.ForEach(contact => { contact.bodyA.shape.color = Color.red; contact.bodyB.shape.color = Color.red; });
ContactSolver.Resolve(contacts);
}
timeAccumulator = timeAccumulator - fixedDeltaTime;
}
if (wrap)
{
bodies.ForEach(body => body.position = Utilities.Wrap(body.position, -size, size));
}
bodies.ForEach(body => body.Step(dt));
bodies.ForEach(body => Integrator.SemiImplicitEuler(body, dt));
bodies.ForEach(body => body.force = Vector2.zero);
bodies.ForEach(body => body.acceleration = Vector2.zero);
}
void Update()
{
Debug.Log($"system fps:{1.0f / Time.deltaTime}");
Debug.Log($"fixed fps:{1.0f / fixedDT}");
fpsText.value = $"FPS: {(1.0f / Time.deltaTime).ToString("F1")}";
if (!simulate)
{
return;
}
float dt = Time.deltaTime;
timeAccumulator += dt;
GravitationalForce.ApplyForce(bodies, gravitation);
springs.ForEach(spring => spring.applyForce());
while (timeAccumulator >= fixedDT)
{
bodies.ForEach(body => body.step(fixedDT));
bodies.ForEach(body => Integrator.semiImplicitEuler(body, fixedDT));
bodies.ForEach(body => body.shape.color = Color.red);
if (collision)
{
Collision.createContacts(bodies, out List <Contact> contacts);
ContactResolver.resolve(contacts);
contacts.ForEach(contact => contact.bodyA.shape.color = Color.cyan);
contacts.ForEach(contact => contact.bodyB.shape.color = Color.cyan);
}
if (wrap)
{
bodies.ForEach(body => body.position = Utilities.wrap(body.position, -size, size));
}
timeAccumulator -= fixedDT;
}
bodies.ForEach(body => body.force = Vector2.zero);
bodies.ForEach(body => body.acceleration = Vector2.zero);
}
void Update()
{
springs.ForEach(spring => spring.Draw());
if (!simulate.value)
{
return;
}
fps = 1.0f / Time.deltaTime;
fpsAverage = (fpsAverage * smoothing) + (fps * (1.0f - smoothing));
fpsText.value = string.Format("FPS: {0:F}", fpsAverage);
GravitationalForce.ApplyForce(bodies, gravitation.value);
forces.ForEach(force => bodies.ForEach(body => force.ApplyForce(body)));
springs.ForEach(spring => spring.ApplyForce());
timeAccumulator += Time.deltaTime;
while (timeAccumulator > fixedDeltaTime)
{
bodies.ForEach(body => body.Step(fixedDeltaTime));
bodies.ForEach(body => Integrator.SemiImplicitEuler(body, fixedDeltaTime));
bodies.ForEach(body => body.shape.color = Color.white);
if (collision)
{
Collision.CreateContacts(bodies, out List <Contact> contacts);
contacts.ForEach(contact => { contact.bodyA.shape.color = Color.red; contact.bodyB.shape.color = Color.red; });
ContactSolver.Resolve(contacts);
}
timeAccumulator -= fixedDeltaTime;
}
if (wrap)
{
bodies.ForEach(body => body.position = Utilities.Wrap(body.position, -size, size));
}
bodies.ForEach(body => body.force = Vector2.zero);
bodies.ForEach(body => body.acceleration = Vector2.zero);
}
public void UnitForce()
{
GravitationalForce g = new GravitationalForce(1.0, 1.0);
Assert.That(g.compute(1.0), Is.EqualTo(G));
}