I've create a Scrolling engine which gets the coordinates of the player, and moves the player and the world so it scrolls. However, it doesn't seem to be moving anything but the player, and I have no Idea why. Could someone help me with this? Also, all of the terrain that the player interacts with (the collision physics are perfect, trust me) are subclasses of "Terrain", and do not have any coding.
import greenfoot.*;
import java.util.List;
public class XEngine extends World
{
public XEngine()
{
// Create a new world with 600x400 cells with a cell size of 1x1 pixels.
super(600, 400, 1, false);
addObject(new Base(250,"ImpossibleBlock.png"),getWidth()/2,getHeight()-50);
addObject(new X(),getWidth()/2,getHeight()/2);
addObject(new GridCoordinates(),getWidth()/2,40);
}
public void act(){
scrollingEngine();
fadeOverlayEngine();
}
boolean autoScroll=true;
int xX=0;//X's X coordinate
int xY=0;//X's Y coordinate
public void getCoordinates(int x, int y){xX=x; xY=y;}
int xc=getWidth()/2;//X center of screen
int yc=getHeight()/2;//Y center of screen
int xcorrect=0;//How much world needs to be scrolled on the X-axis
int ycorrect=0;//How much world need to be scrolled on the Y-axis
int s=25;//How far from center X can stray before the screen scrolls
public void scrollingEngine(){
xcorrect=0;
ycorrect=0;
if (autoScroll==true){
//Figure out how far away X is from the scrolling margin, if at all
if (xX<xc-s){xcorrect=xc-s-xX;}else if (xX>xc+s){xcorrect=xc+s-xX;}
if (xY<yc-s){ycorrect=yc-s-xY;}else if (xY>yc+s){ycorrect=yc+s-xY;}
}
//Scroll world, if at all
((GridCoordinates)getObjects(GridCoordinates.class).get(0)).giveGridCoordinates(xcorrect,ycorrect);
if (xcorrect==0&&ycorrect==0)return;
scroll();
}
Class[] world = {Matter.class,Terrain.class,Shadow.class,Enemy.class,XExplosionGenerator.class,XBuster.class};
public void scroll(){
for (int i=0; i<world.length; i++){
List objects = getObjects(world[i]);
if (! objects.isEmpty()){
for (int o=0; i<objects.size(); i++){
Actor object = (Actor) objects.get(o);
object.setLocation(object.getX()+xcorrect,object.getY()+ycorrect);
}
}
}
}
public void fadeOverlayEngine(){
}
}
