m3g12
Class SkinnedMeshSample

java.lang.Object
  javax.microedition.lcdui.Displayable
      javax.microedition.lcdui.Canvas
          javax.microedition.lcdui.game.GameCanvas
              m3g12.SkinnedMeshSample

All Implemented Interfaces:

java.lang.Runnable, Sample

public class SkinnedMeshSample
extends javax.microedition.lcdui.game.GameCanvas
implements Sample, java.lang.Runnable

SkinnedMesh animation that bends a skeleton with an adjustable number of bones.

Author:

Claus Hoefele

Field Summary

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 boolean	isRunning Flag whether thread is running.
private int	lastKey Stores the last game action key.
private int	numBones Number of bones for skeleton.
private javax.microedition.m3g.Mesh	skin Representation of the skin.
private javax.microedition.m3g.SkinnedMesh	skinnedMesh Mesh with skin and skeleton.
private javax.microedition.m3g.AnimationTrack	track Bone animation.
private boolean	twoBonesPerVertex Enables vertices to share two bones.

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

SkinnedMeshSample()
Constructor.

Method Summary

private void	attachAnimation(javax.microedition.m3g.SkinnedMesh skinnedMesh, javax.microedition.m3g.AnimationTrack track) Attaches the animation to the bones of the SkinnedMesh's skeleton.
private javax.microedition.m3g.SkinnedMesh	attachSkin(javax.microedition.m3g.Mesh skin, javax.microedition.m3g.Group skeleton, int numBones, boolean twoBonesPerVertex) Attaches skin to skeleton to create a SkinnedMesh.
private void	checkKeys(int worldTime) Processes key presses.
private javax.microedition.m3g.AnimationTrack	createAnimation() Creates a new animation that interpolates between two orientations.
private javax.microedition.m3g.Group	createSkeleton(int numBones) Creates a hierarchy of Groups that serves as skeleton.
private javax.microedition.m3g.Mesh	createSkin(int subdivisions) Creates a new rectangular mesh that serves as skin.
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) Receives key presses.
private void	render(javax.microedition.lcdui.Graphics graphics) Renders the sample.
private void	reset() Initializes the sample.
void	run() Animation loop.

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

skin

private javax.microedition.m3g.Mesh skin

Representation of the skin.

skinnedMesh

private javax.microedition.m3g.SkinnedMesh skinnedMesh

Mesh with skin and skeleton.

track

private javax.microedition.m3g.AnimationTrack track

Bone animation.

numBones

private int numBones

Number of bones for skeleton.

twoBonesPerVertex

private boolean twoBonesPerVertex

Enables vertices to share two bones.

isRunning

private boolean isRunning

Flag whether thread is running.

lastKey

private int lastKey

Stores the last game action key.

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

SkinnedMeshSample

public SkinnedMeshSample()

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

run

public void run()

Animation loop.

Specified by:

run in interface java.lang.Runnable

reset

private void reset()

Initializes the sample.

createSkin

private javax.microedition.m3g.Mesh createSkin(int subdivisions)

Creates a new rectangular mesh that serves as skin.

Parameters:

subdivisions - number of vertical subdivisions.

Returns:

mesh.

createSkeleton

private javax.microedition.m3g.Group createSkeleton(int numBones)

Creates a hierarchy of Groups that serves as skeleton.

Parameters:

numBones - number of bones.

Returns:

skeleton.

attachSkin

private javax.microedition.m3g.SkinnedMesh attachSkin(javax.microedition.m3g.Mesh skin,
                                                      javax.microedition.m3g.Group skeleton,
                                                      int numBones,
                                                      boolean twoBonesPerVertex)

Attaches skin to skeleton to create a SkinnedMesh.

Parameters:

skin - mesh used as skin.

skeleton - hierarchy used as skeleton.

numBones - number of bones.

twoBonesPerVertex - enables vertices to share bones.

Returns:

SkinnedMesh.

createAnimation

private javax.microedition.m3g.AnimationTrack createAnimation()

Creates a new animation that interpolates between two orientations.

Returns:

animation track.

attachAnimation

private void attachAnimation(javax.microedition.m3g.SkinnedMesh skinnedMesh,
                             javax.microedition.m3g.AnimationTrack track)

Attaches the animation to the bones of the SkinnedMesh's skeleton.

Parameters:

skinnedMesh - mesh with skeleton.

track - animation track.

keyPressed

protected void keyPressed(int keyCode)

Receives key presses.

Overrides:

keyPressed in class javax.microedition.lcdui.Canvas

Parameters:

keyCode - key code.

checkKeys

private void checkKeys(int worldTime)

Processes key presses.

Parameters:

worldTime - current world time.

render

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

Renders the sample.

Parameters:

graphics - graphics context for drawing.

drawMenu

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

Draws a menu for the current key assignments.

Parameters:

graphics - graphics context for drawing.