Class Camera

java.lang.Object

greenfoot.World

Camera

public class Camera
extends greenfoot.World

This is the Camera class. It is the central part of the camera package as it runs the background world and displays the things on screen. It extends the World class. Camera is currently in development. Splitscreen support is planned and you will find some parts of code of that but it does not do anything yet.

Version:

0.2.1

Author:

RcCookie

Constructor Summary

Constructors

Constructor	Description
Camera(int width, int height, int camNum, double scale, greenfoot.World world, int[] locX, int[] locY)	Constructs a new World of type Camera that displayes an area of the given size centered onto the given coordinates
Camera(int width, int height, int camNum, double scale, greenfoot.World world, greenfoot.Actor[] host)	Constructs a new World of type Camera that displayes an area of the given size following the given actor.
Camera(greenfoot.World world, int locX, int locY)	Constructs a new World of type Camera that displayes an area of 600 time 400 pixels centered onto the given coordinates
Camera(greenfoot.World world, greenfoot.Actor host)	Constructs a new World of type Camera that displayes an area of 600 time 400 pixels of view range of the given world following the given actor

Method Summary

Modifier and Type	Method	Description
void	act()	Runs the main world without showing it and displays the actors at their relative positions.
Camera	lookAt(int[] locX, int[] locY)	Activates and returns a new Camera that looks at the given coordinates with the old amount of screens and based on old settings.
Camera	lookAt(int locX, int locY)	Activates and returns a new Camera that looks at the given coordinates based on old settings.
Camera	lookAt(greenfoot.Actor a)	Activates and returns a new Camera that looks at the given actor based on old settings.
Camera	lookAt(greenfoot.Actor[] a)	Activates and return a new Camera that looks at the given actors in splitscreen with the old amount of screens and old settings.

Methods inherited from class greenfoot.World

addObject, getBackground, getCellSize, getColorAt, getHeight, getObjects, getObjectsAt, getWidth, numberOfObjects, removeObject, removeObjects, repaint, setActOrder, setBackground, setBackground, setPaintOrder, showText, started, stopped

Methods inherited from class java.lang.Object

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

Constructor Detail

Camera

public Camera(greenfoot.World world,
              greenfoot.Actor host)

Constructs a new World of type Camera that displayes an area of 600 time 400 pixels of view range of the given world following the given actor

Parameters:

world - The world the camera should display

host - The actor the camera should follow

Camera

public Camera(greenfoot.World world,
              int locX,
              int locY)

Constructs a new World of type Camera that displayes an area of 600 time 400 pixels centered onto the given coordinates

Parameters:

world - The world the camera should display

locX - The x position of the world the camera should look at

locY - The y position of the world the camera should look at

Camera

public Camera(int width,
              int height,
              int camNum,
              double scale,
              greenfoot.World world,
              int[] locX,
              int[] locY)

Constructs a new World of type Camera that displayes an area of the given size centered onto the given coordinates

Parameters:

width - The cameras screen width

height - The cameras screen height

camNum - WIP The number of cameras for splitscreen (Does nothing!)

scale - WIP the zoom that the camera shows objects with

world - The world the camera should display

locX - The x position of the world the camera should look at

locY - The y position of the world the camera should look at

Camera

public Camera(int width,
              int height,
              int camNum,
              double scale,
              greenfoot.World world,
              greenfoot.Actor[] host)

Constructs a new World of type Camera that displayes an area of the given size following the given actor.

Parameters:

width - The cameras screen width

height - The cameras screen height

camNum - WIP The number of cameras for splitscreen (Does nothing!)

scale - WIP the zoom that the camera shows objects with

world - The world the camera should display

host - WIP The actors each camera should follow (Only first is used!)

Method Detail

act

public void act()

Runs the main world without showing it and displays the actors at their relative positions.

Overrides:

act in class greenfoot.World

lookAt

public Camera lookAt(greenfoot.Actor a)

Activates and returns a new Camera that looks at the given actor based on old settings.

Parameters:

a - The actor to look at

Returns:

The new Camera

lookAt

public Camera lookAt(greenfoot.Actor[] a)

Activates and return a new Camera that looks at the given actors in splitscreen with the old amount of screens and old settings.

Parameters:

a - The actors to look at

Returns:

The new Camera

lookAt

public Camera lookAt(int locX,
                     int locY)

Activates and returns a new Camera that looks at the given coordinates based on old settings.

Parameters:

locX - The x-coordinate to look at

locY - The y-coordinate to look at

Returns:

The new camera

lookAt

public Camera lookAt(int[] locX,
                     int[] locY)

Activates and returns a new Camera that looks at the given coordinates with the old amount of screens and based on old settings.

Parameters:

locX - The x-coordinates to look at

locY - The y-coordinates to look at

Returns:

The new camera