public virtual void Update(WorldParameters parameters)
{
foreach (IGraphicalItem curItem in graphicalItems)
{
curItem.Update(parameters);
}
}
public void Update(WorldParameters parameters)
{
if (Velocity != previousVelocity && Velocity.Y == 0 && Falling)
{
int startSpeed = parameters.WorldRandom.Next(2, 5);
Velocity.X = (1 - parameters.WorldRandom.Next(0, 2) * 2) * startSpeed;
Falling = false;
}
if (parameters.WorldRandom.Next(0, 100) % 10 == 0)
{
int whichArm = parameters.WorldRandom.Next(0, 2);
if (whichArm == 0)
{
RaiseLeftArm = !RaiseLeftArm;
}
else
{
RaiseRightArm = !RaiseRightArm;
}
}
int gravityDirection = 1;
if (ReverseGravity)
{
gravityDirection = -1;
}
Velocity.Y += (parameters.Gravity * gravityDirection);
Position += Velocity;
previousVelocity = new Vector2(Velocity);
Rectangle stickRectangle = CalculateBoundingBox();
Rectangle boundary = parameters.Boundary;
if (stickRectangle.X < boundary.X)
{
Velocity.X = Math.Abs(Velocity.X) * parameters.Damping;
Position.X = boundary.X + Width / 2;
}
if (stickRectangle.X + stickRectangle.Width > boundary.Width)
{
Velocity.X = -Math.Abs(Velocity.X) * parameters.Damping;
Position.X = boundary.Width - Width / 2;
}
if (stickRectangle.Y < boundary.Y)
{
Velocity.Y = Math.Abs(Velocity.Y) * parameters.Damping;
Position.Y = boundary.Y + Height / 2;
}
if (stickRectangle.Y + stickRectangle.Height > boundary.Height)
{
Velocity.Y = 0;
Position.Y = boundary.Height - Height / 2;
}
}
public void Update(WorldParameters parameters)
{
if (EnableGravity)
{
Velocity.Y += parameters.Gravity;
}
Position += Velocity;
Rectangle ballRectangle = CalculateBoundingBox();
Rectangle boundary = parameters.Boundary;
Random random = parameters.WorldRandom;
if (ballRectangle.X < boundary.X)
{
Velocity.X = Math.Abs(Velocity.X) * parameters.Damping;
Position.X = boundary.X + Radius;
}
if (ballRectangle.X + ballRectangle.Width > boundary.Width)
{
Velocity.X = -Math.Abs(Velocity.X) * parameters.Damping;
Position.X = boundary.Width - Radius;
}
if (ballRectangle.Y < boundary.Y)
{
Velocity.Y = Math.Abs(Velocity.Y) * parameters.Damping;
Position.Y = boundary.Y + Radius;
}
if (ballRectangle.Y + ballRectangle.Height > boundary.Height)
{
Velocity.Y = -Math.Abs(Velocity.Y) * parameters.Damping;
double jitterVel = Velocity.Y / 2;
if (jitterVel < -1)
{
Velocity.X += random.NextDouble() * jitterVel - random.NextDouble() * jitterVel;
}
Position.Y = boundary.Height - Radius;
}
}
