/// <summary>
/// Apply a force to the body without increasing it's velocity above a specific limit.
/// </summary>
public void ApplyForce(Vector2 force, float maxVelocity)
{
if (!IsValidValue(maxVelocity, "max velocity"))
{
return;
}
Vector2 velocityAddition = force / Mass * (float)Timing.Step;
Vector2 newVelocity = FarseerBody.LinearVelocity + velocityAddition;
float newSpeedSqr = newVelocity.LengthSquared();
if (newSpeedSqr > maxVelocity * maxVelocity && Vector2.Dot(FarseerBody.LinearVelocity, force) > 0.0f)
{
float newSpeed = (float)Math.Sqrt(newSpeedSqr);
float maxVelAddition = maxVelocity - newSpeed;
if (maxVelAddition <= 0.0f)
{
return;
}
force = velocityAddition.ClampLength(maxVelAddition) * Mass / (float)Timing.Step;
}
if (!IsValidValue(force, "clamped force", -1e10f, 1e10f))
{
return;
}
FarseerBody.ApplyForce(force);
}
/// <summary>
/// Apply an impulse to the body without increasing it's velocity above a specific limit.
/// </summary>
public void ApplyLinearImpulse(Vector2 impulse, Vector2 point, float maxVelocity)
{
if (!IsValidValue(impulse, "impulse", -1e10f, 1e10f))
{
return;
}
if (!IsValidValue(point, "point"))
{
return;
}
if (!IsValidValue(maxVelocity, "max velocity"))
{
return;
}
Vector2 velocityAddition = impulse / Mass;
Vector2 newVelocity = FarseerBody.LinearVelocity + velocityAddition;
float newSpeedSqr = newVelocity.LengthSquared();
if (newSpeedSqr > maxVelocity * maxVelocity)
{
newVelocity = newVelocity.ClampLength(maxVelocity);
}
if (!IsValidValue((newVelocity - FarseerBody.LinearVelocity), "new velocity", -1000.0f, 1000.0f))
{
return;
}
FarseerBody.ApplyLinearImpulse((newVelocity - FarseerBody.LinearVelocity) * Mass, point);
FarseerBody.AngularVelocity = MathHelper.Clamp(
FarseerBody.AngularVelocity,
-NetConfig.MaxPhysicsBodyAngularVelocity,
NetConfig.MaxPhysicsBodyAngularVelocity);
}
/// <summary>
/// Apply an impulse to the body without increasing it's velocity above a specific limit.
/// </summary>
public void ApplyLinearImpulse(Vector2 impulse, float maxVelocity)
{
if (!IsValidValue(impulse, "impulse", -1e10f, 1e10f))
{
return;
}
if (!IsValidValue(maxVelocity, "max velocity"))
{
return;
}
Vector2 velocityAddition = impulse / Mass;
Vector2 newVelocity = FarseerBody.LinearVelocity + velocityAddition;
float newSpeedSqr = newVelocity.LengthSquared();
if (newSpeedSqr > maxVelocity * maxVelocity)
{
newVelocity = newVelocity.ClampLength(maxVelocity);
}
if (!IsValidValue((newVelocity - FarseerBody.LinearVelocity), "new velocity", -1000.0f, 1000.0f))
{
return;
}
FarseerBody.ApplyLinearImpulse((newVelocity - FarseerBody.LinearVelocity) * Mass);
}
public void ApplyTorque(float torque)
{
if (!IsValidValue(torque, "torque"))
{
return;
}
FarseerBody.ApplyTorque(torque);
}
public void ApplyForce(Vector2 force)
{
if (!IsValidValue(force, "force", -1e10f, 1e10f))
{
return;
}
FarseerBody.ApplyForce(force);
}
public void ApplyForce(Vector2 force, Vector2 point)
{
if (!IsValidValue(force, "force", -1e10f, 1e10f))
{
return;
}
if (!IsValidValue(point, "point"))
{
return;
}
FarseerBody.ApplyForce(force, point);
}
public void ApplyLinearImpulse(Vector2 impulse)
{
if (!IsValidValue(impulse / FarseerBody.Mass, "new velocity", -1000f, 1000f))
{
return;
}
if (!IsValidValue(impulse, "impulse", -1e10f, 1e10f))
{
return;
}
FarseerBody.ApplyLinearImpulse(impulse);
}
public void MoveToPos(Vector2 simPosition, float force, Vector2?pullPos = null)
{
if (pullPos == null)
{
pullPos = FarseerBody.Position;
}
if (!IsValidValue(simPosition, "position", -1e10f, 1e10f))
{
return;
}
if (!IsValidValue(force, "force"))
{
return;
}
Vector2 vel = FarseerBody.LinearVelocity;
Vector2 deltaPos = simPosition - (Vector2)pullPos;
deltaPos *= force;
FarseerBody.ApplyLinearImpulse((deltaPos - vel * 0.5f) * FarseerBody.Mass, (Vector2)pullPos);
}
public bool SetTransformIgnoreContacts(Vector2 simPosition, float rotation, bool setPrevTransform = true)
{
System.Diagnostics.Debug.Assert(MathUtils.IsValid(simPosition));
System.Diagnostics.Debug.Assert(Math.Abs(simPosition.X) < 1000000.0f);
System.Diagnostics.Debug.Assert(Math.Abs(simPosition.Y) < 1000000.0f);
if (!IsValidValue(simPosition, "position", -1e10f, 1e10f))
{
return(false);
}
if (!IsValidValue(rotation, "rotation"))
{
return(false);
}
FarseerBody.SetTransformIgnoreContacts(ref simPosition, rotation);
if (setPrevTransform)
{
SetPrevTransform(simPosition, rotation);
}
return(true);
}
public void ResetDynamics()
{
FarseerBody.ResetDynamics();
}
