Hey. I'm having an issue with my code.
The idea of the code is to move the player 40 pixels in any of the arrow key directions, but not diagonally. There are a couple caveats, though. The first is that Players may not move if there is a wall in the place they are trying to move to. Secondly, if there is a box in front of them when they move, players should be able to push the box, but not if there is a wall on the other side of the box blocking the way.
The code to push the boxes works, but currently my players can travel through walls. Boxes will also go though walls if pushed by a player.
Here's the code. It runs in the act method of the Player.
public void act()
{
move();
// action code here.
}
public void move()
{
if(Greenfoot.isKeyDown("Right"))
{
boolean wall;
Actor box = getOneObjectAtOffset(0+40, 0, Box.class);
if (box != null) {
wall = haveWall(getX()+80,getY());
}else {
wall = haveWall(getX()+40,getY());
}
if (wall == false) {
setLocation(getX()+40,getY());
if(box != null) {
getWorld().removeObject(box);
getWorld().addObject(new Box(), getX()+40, getY());
}
}
Greenfoot.delay(20);
}
else if(Greenfoot.isKeyDown("Left"))
{
boolean wall;
Actor box = getOneObjectAtOffset(0-40, 0, Box.class);
if (box != null) {
wall = haveWall(getX()-80,getY());
}else {
wall = haveWall(getX()-40,getY());
}
if (wall == false) {
setLocation(getX()-40,getY());
if(box != null) {
getWorld().removeObject(box);
getWorld().addObject(new Box(), getX()-40, getY());
}
}
Greenfoot.delay(20);
}
else if(Greenfoot.isKeyDown("Up"))
{
boolean wall;
Actor box = getOneObjectAtOffset(0, 0+40, Box.class);
if (box != null) {
wall = haveWall(getX(),getY()-80);
}else {
wall = haveWall(getX(),getY()-40);
}
if (wall == false) {
setLocation(getX(),getY()-40);
if(box != null) {
getWorld().removeObject(box);
getWorld().addObject(new Box(), getX(), getY()-40);
}
}
Greenfoot.delay(20);
}
else if(Greenfoot.isKeyDown("Down"))
{
boolean wall;
Actor box = getOneObjectAtOffset(0, 0+40, Box.class);
if (box != null) {
wall = haveWall(getX(),getY()+80);
}else {
wall = haveWall(getX(),getY()+40);
}
if (wall == false) {
setLocation(getX(),getY()+40);
if(box != null) {
getWorld().removeObject(box);
getWorld().addObject(new Box(), getX(), getY()+40);
}
}
Greenfoot.delay(20);
}
}
public boolean haveWall(int x, int y)
{
Actor walls = getOneObjectAtOffset(x, y, Wall.class);
if(walls != null) {
return true;
}else {
return false;
}
}
