m3g07
Class FogSample

java.lang.Object
  javax.microedition.lcdui.Displayable
      javax.microedition.lcdui.Canvas
          javax.microedition.lcdui.game.GameCanvas
              m3g07.FogSample

All Implemented Interfaces:

Sample

public class FogSample
extends javax.microedition.lcdui.game.GameCanvas
implements Sample

Sample demonstrating fog.

Author:

Claus Hoefele

Field Summary

private int	currentFogMode Current fog mode.
private javax.microedition.m3g.Fog	fog Fog object.
private static int	FOG_MODE_EXPONENTIAL Identifier representing exponential fog.
private static int	FOG_MODE_LINEAR Identifier representing linear fog.
private static int	FOG_MODE_OFF Identifier representing disabled fog.
private static float	FOG_PARAM_DENSITY Initial value for density of exponential fog.
private static float	FOG_PARAM_FAR Initial value for far distance of linear fog.
private float	fogParam The current fog parameter.
private javax.microedition.lcdui.Graphics	graphics 2D graphics singleton used for rendering.
private javax.microedition.m3g.Graphics3D	graphics3d 3D graphics singleton used for rendering.
private javax.microedition.m3g.Mesh	mesh Mesh for display.
private javax.microedition.m3g.Transform	meshTransform The mesh's transformation.
private static int	NUMBER_OF_FOG_MODES Number of fog mode identifiers.

Fields inherited from class javax.microedition.lcdui.game.GameCanvas

DOWN_PRESSED, FIRE_PRESSED, GAME_A_PRESSED, GAME_B_PRESSED, GAME_C_PRESSED, GAME_D_PRESSED, LEFT_PRESSED, RIGHT_PRESSED, UP_PRESSED

Fields inherited from class javax.microedition.lcdui.Canvas

DOWN, FIRE, GAME_A, GAME_B, GAME_C, GAME_D, KEY_NUM0, KEY_NUM1, KEY_NUM2, KEY_NUM3, KEY_NUM4, KEY_NUM5, KEY_NUM6, KEY_NUM7, KEY_NUM8, KEY_NUM9, KEY_POUND, KEY_STAR, LEFT, RIGHT, UP

Constructor Summary

FogSample()
Constructor.

Method Summary

void	destroy() Destroys the sample.
private void	drawMenu(javax.microedition.lcdui.Graphics graphics) Draws a menu for the current key assignments.
void	init() Initializes the sample.
protected void	keyPressed(int keyCode) Handles key presses.
private void	render(javax.microedition.lcdui.Graphics graphics) Renders the sample.
private void	setFogMode(javax.microedition.m3g.Mesh mesh, javax.microedition.m3g.Fog fog, int mode, float param) Sets the current fog parameters.

Methods inherited from class javax.microedition.lcdui.game.GameCanvas

flushGraphics, flushGraphics, getGraphics, getKeyStates, paint

Methods inherited from class javax.microedition.lcdui.Canvas

getGameAction, getKeyCode, getKeyName, hasPointerEvents, hasPointerMotionEvents, hasRepeatEvents, hideNotify, isDoubleBuffered, keyReleased, keyRepeated, pointerDragged, pointerPressed, pointerReleased, repaint, repaint, serviceRepaints, setCommandListener, setFullScreenMode, showNotify, sizeChanged

Methods inherited from class javax.microedition.lcdui.Displayable

addCommand, getHeight, getTicker, getTitle, getWidth, isShown, removeCommand, setTicker, setTitle

Methods inherited from class java.lang.Object

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

Field Detail

mesh

private javax.microedition.m3g.Mesh mesh

Mesh for display.

meshTransform

private javax.microedition.m3g.Transform meshTransform

The mesh's transformation.

FOG_PARAM_FAR

private static final float FOG_PARAM_FAR

Initial value for far distance of linear fog.

See Also:

Constant Field Values

FOG_PARAM_DENSITY

private static final float FOG_PARAM_DENSITY

Initial value for density of exponential fog.

See Also:

Constant Field Values

fog

private javax.microedition.m3g.Fog fog

Fog object.

fogParam

private float fogParam

The current fog parameter. Stores the far distance for linear fog; density for exponential fog.

FOG_MODE_LINEAR

private static final int FOG_MODE_LINEAR

Identifier representing linear fog.

See Also:

Constant Field Values

FOG_MODE_EXPONENTIAL

private static final int FOG_MODE_EXPONENTIAL

Identifier representing exponential fog.

See Also:

Constant Field Values

FOG_MODE_OFF

private static final int FOG_MODE_OFF

Identifier representing disabled fog.

See Also:

Constant Field Values

NUMBER_OF_FOG_MODES

private static final int NUMBER_OF_FOG_MODES

Number of fog mode identifiers.

See Also:

Constant Field Values

currentFogMode

private int currentFogMode

Current fog mode.

graphics3d

private javax.microedition.m3g.Graphics3D graphics3d

3D graphics singleton used for rendering.

graphics

private javax.microedition.lcdui.Graphics graphics

2D graphics singleton used for rendering.

Constructor Detail

FogSample

public FogSample()

Constructor.

Method Detail

init

public void init()

Initializes the sample.

Specified by:

init in interface Sample

destroy

public void destroy()

Destroys the sample.

Specified by:

destroy in interface Sample

setFogMode

private void setFogMode(javax.microedition.m3g.Mesh mesh,
                        javax.microedition.m3g.Fog fog,
                        int mode,
                        float param)

Sets the current fog parameters.

Parameters:

mesh - target of fog.

fog - Fog object.

mode - fog mode.

param - far distance for linear fog, density for exponential fog, otherwise ignored.

render

private void render(javax.microedition.lcdui.Graphics graphics)

Renders the sample.

Parameters:

graphics - graphics context for rendering.

keyPressed

protected void keyPressed(int keyCode)

Handles key presses.

Overrides:

keyPressed in class javax.microedition.lcdui.Canvas

Parameters:

keyCode - key code.

drawMenu

private void drawMenu(javax.microedition.lcdui.Graphics graphics)

Draws a menu for the current key assignments.

Parameters:

graphics - graphics context for drawing.