jsim.process
Class Transport

java.lang.Object
  jsim.process.Transport

public class Transport
extends java.lang.Object

The Transport class implements the connecting links between the nodes. Any two nodes can be connected only by a Transport. The transport can be a straight line (determined by 2 points) or a quad curve (determined by 3 points).

Field Summary

protected static double	DEFAULT_STEP_SIZE Default step size for entities moving on transport.
protected static double	DEFAULT_STEP_TIME Default step time for entities moving on transport.
protected QCurve	edge The quad curve representing the transport edge.
protected java.awt.geom.Point2D.Double	end The last point of the edge.
protected java.awt.geom.Point2D.Double	start The first point of the edge.
protected double	stepSize The size of each step.
protected double	stepTime The time between steps.
protected double	totalTime
protected static java.util.logging.Logger	trc Tracing messages.

Constructor Summary

Transport(double x1, double y1, double ctrlx, double ctrly, double x2, double y2, Variate timeDist)
Construct a transport as a quad curve.

Transport(double x1, double y1, double x2, double y2, Variate timeDist)
Construct a transport as a straight line (degenerate quad curve).

Method Summary

void	adjustSpeed(double stepTime, double stepSize) Adjust the speed of the transport by reseting the stepTime and/or stepSize.
void	join(SimObject entity) Place entity at start of transport.
boolean	move(SimObject entity) This method implements the logic for a SimObject stepping through the transport.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_STEP_TIME

protected static final double DEFAULT_STEP_TIME

Default step time for entities moving on transport.

See Also:

Constant Field Values

DEFAULT_STEP_SIZE

protected static final double DEFAULT_STEP_SIZE

Default step size for entities moving on transport.

See Also:

Constant Field Values

edge

protected final QCurve edge

The quad curve representing the transport edge.

start

protected final java.awt.geom.Point2D.Double start

The first point of the edge.

end

protected final java.awt.geom.Point2D.Double end

The last point of the edge.

trc

protected static java.util.logging.Logger trc

Tracing messages.

stepTime

protected double stepTime

The time between steps.

stepSize

protected double stepSize

The size of each step.

totalTime

protected double totalTime

Constructor Detail

Transport

public Transport(double x1,
                 double y1,
                 double x2,
                 double y2,
                 Variate timeDist)

Construct a transport as a straight line (degenerate quad curve).

Parameters:

x1 - x coordinate of start point

y1 - y coordinate of start point

x2 - x coordinate of end point

y2 - y coordinate of end point

Transport

public Transport(double x1,
                 double y1,
                 double ctrlx,
                 double ctrly,
                 double x2,
                 double y2,
                 Variate timeDist)

Construct a transport as a quad curve.

Parameters:

x1 - x coordinate of start point

y1 - y coordinate of start point

ctrlx - x coordinate of control point

ctrly - y coordinate of control point

x2 - x coordinate of end point

y2 - y coordinate of end point

Method Detail

join

public void join(SimObject entity)

Place entity at start of transport.

Parameters:

entity - SimObject/entity joining the transport

move

public boolean move(SimObject entity)

This method implements the logic for a SimObject stepping through the transport. It changes the position co-ordinates of the SimObject as required.

Parameters:

entity - SimObject/entity stepping through the transport

Returns:

boolean whether entity is still moving on transport

adjustSpeed

public void adjustSpeed(double stepTime,
                        double stepSize)

Adjust the speed of the transport by reseting the stepTime and/or stepSize.

Parameters:

stepTime - new step time (ignored if not positive)

stepSize - new step size (ignored if not positive)