public override void Update(float timeElapsed)
{
// calculate the combined force from each steering behavior in the vehicle's list
Vector2D steeringForce = SB.Calculate();
// acceleration = force / mass
Vector2D acceleration = steeringForce.divide(Mass);
// update velocity
Velocity.Add(acceleration.Multiply(timeElapsed));
// make sure vehicle does not exceed maximum velocity
Velocity.truncate(MaxSpeed);
// update the position
Pos = Pos.Add(Velocity.Multiply(timeElapsed));
// update the heading if velocity is greater than 0.
if (Velocity.LengthSquared() > 0.001)
{
Heading = Velocity.Normalize();
Side = Heading.Perpendicular();
}
}
public override void OnCollision(Sandbox sb, Particle other)
{
if (other.Mass < Mass)//меняем местами, если столкнулись с более тяжелой частицей
{
var loc = other.Location;
other.Location = Location;
Location = loc;
}
Velocity = Velocity.Mult(-0);
Velocity = Velocity.Add(new PointF(FastRnd.Next() * 2, FastRnd.Next() * 1f));
}
public void UpdatePosition(Rectangle rectangle)
{
Velocity.Add(Acceleration);
Velocity.Limit(MaxSpeed);
Location.Add(Velocity);
//CheckEdges(rectangle.Width, rectangle.Height, rectangle.Left, rectangle.Top);
UpdateRectangle();
Acceleration.Multiply(0);
}
/// <summary>
/// Обновление сил, скоростей и координат
/// </summary>
public virtual void Update(Sandbox sb, float dt)
{
var PrevLocation = Location;
//приращение скорости
Velocity = Velocity.Add(Acceleration, dt * dt);
//приращение координаты
Location = Location.Add(Velocity);
//мы ударились о другую частицу?
var cell = sb[X, Y];
if (cell != null && cell != this)
{
//остаемся на месте, обрабатываем столкновение
Location = PrevLocation;
OnCollision(sb, cell);
}
}
public void Update(GameTime gameTime)
{
// Check if entity is under map kill threshold
if (Position.Y >= 12.5)
{
if (this is IPlayer)
{
IPlayer player = (IPlayer)this;
player.CauseDamage();
}
else if (this is IEnemy)
{
IEnemy enemy = (IEnemy)this;
if (enemy.IsAlive())
{
enemy.BeStomped();
}
}
}
// Calculate the delta time
float delta = gameTime.ElapsedGameTime.Milliseconds / 1000f;
// Apply pending forces to acceleration
foreach (Force force in forces)
{
Acceleration.Add(force.Calculate(this, delta));
}
forces.Clear();
// Limit acceleration
Acceleration.Limit();
// Increase velocity by acceleration and set to 0
Velocity.Add(Acceleration.Vector);
Acceleration.Set(Vector2.Zero);
// Limit new velocity
Velocity.Limit();
// Handle moving entity's position based on velocity
Movement.MoveEntity(this, Velocity.X * delta, -Velocity.Y * delta);
}
// TODO: gravity
private void UpdateVelocity(double seconds)
{
var engineOldOrientation = MainEngineOrientationAngle;
UpdateRotation(seconds);
var engineNewOrientation = MainEngineOrientationAngle;
if (!IsMainEngineFiring)
{
return;
}
// way simplified, ..but meh, sufficient
var engineAvgOrientantion = (engineOldOrientation + engineNewOrientation) / 2;
var engineGeneratedVelocityMagnitude = EngineGeneratedAcceleration * seconds;
var engineGeneratedVelocity = new Vector(engineGeneratedVelocityMagnitude, engineAvgOrientantion - 180);
Velocity = Velocity.Add(engineGeneratedVelocity);
}
public override void Update(float timeElapsed)
{
Console.WriteLine(ToString());
Vector2D totalVector = new Vector2D();
foreach (SteeringBehaviour steeringBehaviour in steeringBehaviours)
{
Vector2D steeringBehaviourVector = steeringBehaviour.Calculate();
totalVector.Add(steeringBehaviourVector);
}
// Acceleratie toevoegen op basis van Mass
if (totalVector.Length() != 0)
{
totalVector = totalVector.Normalize();
Vector2D acceleration = totalVector.Divide(Mass).Multiply(MaxSpeed);
Velocity.Add(acceleration.Multiply(timeElapsed));
Velocity.Truncate(MaxSpeed);
Pos.Add(Velocity);
}
}
public override void Update(float timeElapsed)
{
// Calculate the combined force from each steering behaviour.
Vector2D steeringForce = SB.Calculate();
// Acceleration = Force / Mass (Newton's laws of physics).
Vector2D acceleration = steeringForce.Clone().divide(Mass);
// Update velocity.
Velocity.Add(acceleration.Clone().Multiply(timeElapsed));
// Make sure the moving entity does not exceed maximum speed.
Velocity.Truncate(MaxSpeed);
// Update position.
Pos.Add(Velocity.Clone().Multiply(timeElapsed));
// Update heading if the velocity is bigger than 0
if (Velocity.LengthSquared() > 0)
{
Heading = Velocity.Clone().Normalize();
}
}