Package com.nevergarden.myna.display

Class DisplayObject

java.lang.Object

com.nevergarden.myna.events.EventDispatcher

com.nevergarden.myna.display.DisplayObject

All Implemented Interfaces:

Drawable

Direct Known Subclasses:

DisplayObjectContainer, Quad

public abstract class DisplayObject
extends EventDispatcher
implements Drawable

Base of every object that is rendered into screen.

Display Transformations
The most important part of DisplayObject job is to take care of transformation matrix calculations.

See Also:

Quad, Sprite

Field Summary

Fields

Modifier and Type	Field	Description
protected DisplayObjectContainer	parent	Parent of current node.
protected org.joml.Vector3f	pivot
protected org.joml.Vector3f	position
protected org.joml.Quaternionf	rotation
protected org.joml.Vector3f	scale
protected org.joml.Matrix4f	transform

Fields inherited from class com.nevergarden.myna.events.EventDispatcher

eventListeners

Constructor Summary

Constructors

Constructor	Description
DisplayObject()	Default Constructor.

Method Summary

Modifier and Type	Method	Description
void	draw(int frame)	Draws the drawable on the given frame.
Vector3f	getPosition()	Get position of current object.
protected void	recalculateMatrix()	Recalculates the matrix with it's current transformations.
void	removeFromParent()	Removes self from parent.
void	rotate(float radians)	Rotates current object in radians.
void	setLocalX(float x)	Sets current DisplayObject X position relative to it's parent.
void	setLocalY(float y)	Sets current DisplayObject Y position relative to it's parent.
void	setParent(DisplayObjectContainer parent)	Sets a new parent to this DisplayObject
void	setPivot(float x, float y)	Sets Piviot point of current DisplayObject
void	setPivotX(float x)	Sets X pivot position of current DisplayObject
void	setPivotY(float y)	Sets Y pivot position of current DisplayObject
void	setPosition(float x, float y)	Sets position of current DisplayObject relative to it's parent.
void	setRotation(float radians)	Sets current object rotation in radians.
void	setScale(float x, float y)	Sets current object scale.
void	setScaleX(float x)	Sets current object X scale.
void	setScaleY(float y)	Sets current object Y scale.

Methods inherited from class com.nevergarden.myna.events.EventDispatcher

addEventListener, dispatchEvent, dispatchEventWith, dispatchEventWith, dispose, hasEventListener, invokeEvent, removeEventListener, removeEventListeners

Methods inherited from class java.lang.Object

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

Field Detail

transform

protected org.joml.Matrix4f transform

pivot

protected org.joml.Vector3f pivot

rotation

protected org.joml.Quaternionf rotation

scale

protected org.joml.Vector3f scale

position

protected org.joml.Vector3f position

parent

protected DisplayObjectContainer parent

Parent of current node. Most of the nodes are added to stage.

Constructor Detail

DisplayObject

public DisplayObject()

Default Constructor.

Method Detail

recalculateMatrix

protected void recalculateMatrix()

Recalculates the matrix with it's current transformations.

removeFromParent

public void removeFromParent()

Removes self from parent.

setParent

public void setParent(DisplayObjectContainer parent)

Sets a new parent to this DisplayObject

Parameters:

parent - New Parent

draw

public void draw(int frame)

Description copied from interface: Drawable

Draws the drawable on the given frame.

Specified by:

draw in interface Drawable

setLocalX

public void setLocalX(float x)

Sets current DisplayObject X position relative to it's parent.

setLocalY

public void setLocalY(float y)

Sets current DisplayObject Y position relative to it's parent.

setPosition

public void setPosition(float x,
                        float y)

Sets position of current DisplayObject relative to it's parent.

setPivotX

public void setPivotX(float x)

Sets X pivot position of current DisplayObject

setPivotY

public void setPivotY(float y)

Sets Y pivot position of current DisplayObject

setPivot

public void setPivot(float x,
                     float y)

Sets Piviot point of current DisplayObject

setRotation

public void setRotation(float radians)

Sets current object rotation in radians.

rotate

public void rotate(float radians)

Rotates current object in radians.

setScaleX

public void setScaleX(float x)

Sets current object X scale.

setScaleY

public void setScaleY(float y)

Sets current object Y scale.

setScale

public void setScale(float x,
                     float y)

Sets current object scale.

getPosition

public Vector3f getPosition()

Get position of current object.