Class HoleLattice

java.lang.Object
  |
  +--HoleLattice

class HoleLattice

extends java.lang.Object

A simple model to describe the motion of holes through a lattice.

Inner Class Summary

protected class	HoleLattice.Basis Represents a basis in the lattice, consisting of four holes/electrons around an atom.
protected class	HoleLattice.Hole Represents a hole/electron in motion.

Field Summary

protected double	advanceRate The rate at which holes move across the lattice
protected int	atomH
protected int	atomW
static int	BOTTOM
protected int	holeH
protected java.util.Vector	holes A list of all the holes currently in the lattice
protected int	holeW
protected int	insetX
protected int	insetY
protected HoleLattice.Basis[][]	lattice The lattice itself, represented as an array of bases
static int	LEFT
protected int	lh The height (in bases) of the lattice
protected int	lw The width (in bases) of the lattice
static int	RIGHT
protected double	slideRate The rate at which holes "slide" diagonally instead of straight ahead
protected boolean	smooth Set to false if electrons move instantly, true if electrons move slowly.
protected double	spawnRate The rate at which new holes are created
static int	TOP

Constructor Summary

HoleLattice(int w, int h)
Creates a new lattice.

Method Summary

void	advanceHoles() Executes one step for the model; each (stationary) hole will have a random chance to move to a nearby state.
int	getKeyHeight(java.awt.FontMetrics fm) Calculates the height (in pixels) of the key.
void	paint(java.awt.Graphics g, int w, int h) Paints the lattice (and associated displays) onto the specified Graphics surface.
void	paintHoles(java.awt.Graphics g, int w, int h) Paints any holes/electrons currently in motion.
void	paintKey(java.awt.Graphics g, int w, int h) Paints the key onto the specified Graphics surface.
void	setSmooth(boolean b) Turns animation on or off.
void	spawnHoles() Creates more holes at the far right-hand side of the lattice.

Methods inherited from class java.lang.Object

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

Field Detail

smooth

protected boolean smooth

Set to false if electrons move instantly, true if electrons move slowly.

holes

protected java.util.Vector holes

A list of all the holes currently in the lattice

lattice

protected HoleLattice.Basis[][] lattice

The lattice itself, represented as an array of bases

lw

protected int lw

The width (in bases) of the lattice

lh

protected int lh

The height (in bases) of the lattice

spawnRate

protected double spawnRate

The rate at which new holes are created

advanceRate

protected double advanceRate

The rate at which holes move across the lattice

slideRate

protected double slideRate

The rate at which holes "slide" diagonally instead of straight ahead

atomW

protected int atomW

atomH

protected int atomH

holeW

protected int holeW

holeH

protected int holeH

insetX

protected int insetX

insetY

protected int insetY

TOP

public static final int TOP

BOTTOM

public static final int BOTTOM

LEFT

public static final int LEFT

RIGHT

public static final int RIGHT

Constructor Detail

HoleLattice

public HoleLattice(int w,
                   int h)

Creates a new lattice.

Parameters:

w - The width of the lattice (number of bases across)

h - The width of the lattice (number of bases down)

Method Detail

paint

public void paint(java.awt.Graphics g,
                  int w,
                  int h)

Paints the lattice (and associated displays) onto the specified Graphics surface.

Parameters:

w - The width to scale the display to

h - The height to scale the display to

advanceHoles

public void advanceHoles()

Executes one step for the model; each (stationary) hole will have a random chance to move to a nearby state.

spawnHoles

public void spawnHoles()

Creates more holes at the far right-hand side of the lattice.

paintKey

public void paintKey(java.awt.Graphics g,
                     int w,
                     int h)

Paints the key onto the specified Graphics surface.

Parameters:

w - The width to scale the display to

h - The height to scale the display to

getKeyHeight

public int getKeyHeight(java.awt.FontMetrics fm)

Calculates the height (in pixels) of the key.

Parameters:

fm - The FontMetrics with which the key will be rendered

paintHoles

public void paintHoles(java.awt.Graphics g,
                       int w,
                       int h)

Paints any holes/electrons currently in motion.

Parameters:

w - The width to scale the display to

h - The height to scale the display to

setSmooth

public void setSmooth(boolean b)

Turns animation on or off.

Parameters:

b - true if animation should be on, otherwise false