edu.eside.flingbox.graphics
Class RenderCamera

java.lang.Object
  edu.eside.flingbox.graphics.RenderCamera

public class RenderCamera
extends java.lang.Object

Specifies OpenGL camera interface. By setting camera's position and width camera could be moved.

Field Summary

float	bottom Used by OpenGL
boolean	isChanged Flag to change OpenGL's camera
float	left Used by OpenGL
float	rigth Used by OpenGL
float	top Used by OpenGL

Constructor Summary

RenderCamera(float surfaceWidth, float surfaceHeight)
Default constructor for a surface

Method Summary

Vector2D	getAperture()
Vector2D	getPosition()
Vector2D	project(Vector2D v)
Vector2D	scale(Vector2D v)
void	setAperture(Vector2D aperture) Sets camera's aperture
void	setPosition(Vector2D newPosition) Sets Camera's position.
void	setSurface(float surfaceWidth, float surfaceHeight) Changes surface size

Methods inherited from class java.lang.Object

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

Field Detail

left

public float left

Used by OpenGL

rigth

public float rigth

Used by OpenGL

top

public float top

Used by OpenGL

bottom

public float bottom

Used by OpenGL

isChanged

public boolean isChanged

Flag to change OpenGL's camera

Constructor Detail

RenderCamera

public RenderCamera(float surfaceWidth,
                    float surfaceHeight)

Default constructor for a surface

Method Detail

setSurface

public void setSurface(float surfaceWidth,
                       float surfaceHeight)

Changes surface size

setPosition

public void setPosition(Vector2D newPosition)

Sets Camera's position.

Parameters:

x - Center of the focus, x

y - Center of the focus, y

width - Width of camera's frame. height is calculated to keep aspect ratio

setAperture

public void setAperture(Vector2D aperture)

Sets camera's aperture

Parameters:

horizontalAperture - camera's horizontal aperture

project

public Vector2D project(Vector2D v)

Returns:

projected vector

scale

public Vector2D scale(Vector2D v)

Returns:

scaled vector

getPosition

public Vector2D getPosition()

Returns:

camera's position

getAperture

public Vector2D getAperture()

Returns:

camera's aperture