Hey guys, im making a pacman game but im stuck because my ghosts will only change direction when they hit a wall. Seeing i have a world with walls in circles, they will only go around constantly. I hope you guys know what i mean... Heres my code until now:
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class GhostBlue here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class GhostBlue extends Ghost
{
private static final int EAST = 0;
private static final int WEST = 1;
private static final int NORTH = 2;
private static final int SOUTH = 3;
public int xturn;
private int direction;
public GhostBlue()
{
setDirection(NORTH);
}
public void act()
{
if(canMove()) {
move();
}
else{
turn();
}
}
public void move()
{
World myWorld = getWorld();
int x = getX();
int y = getY();
if (direction == SOUTH && WallSouth()){
setLocation(getX(), getY() + 1);
}
else if ( direction == EAST && WallEast()){
setLocation(getX() + 1, getY());
}
else if ( direction == NORTH && WallNorth()){
setLocation(getX(), getY() - 1);
}
else if ( direction == WEST && WallWest()){
setLocation(getX() - 1, getY());
}
else{
turn();
}
}
public boolean canMove()
{
World myWorld = getWorld();
int x = getX();
int y = getY();
if (x >= myWorld.getWidth() || y >= myWorld.getHeight()){
return false;
}
else if (x < 0 || y < 0){
return false;
}
return true;
}
public void turn()
{
xturn = Greenfoot.getRandomNumber(2);
if (xturn == 0){
turnRight();
}
else if (xturn == 1){
turnLeft();
}
}
public void turnRight()
{
if (direction == SOUTH){
setDirection(WEST);
}
else if ( direction == EAST){
setDirection(SOUTH);
}
else if ( direction == NORTH){
setDirection(EAST);
}
else if ( direction == WEST){
setDirection(NORTH);
}
}
public void turnLeft()
{
if (direction == SOUTH){
setDirection(EAST);
}
else if ( direction == EAST){
setDirection(NORTH);
}
else if ( direction == NORTH){
setDirection(WEST);
}
else if ( direction == WEST){
setDirection(SOUTH);
}
}
public void setDirection(int direction)
{
this.direction = direction;
}
public boolean WallNorth()
{
Actor Around = getOneObjectAtOffset(0, -15, Around.class);
Actor WallIn = getOneObjectAtOffset(0, -15, WallIn.class);
if(Around != null){
return false;
}
else if (WallIn != null){
return false;
}else{
return true;
}
}
public boolean WallEast()
{
Actor Around = getOneObjectAtOffset(+15, 0, Around.class);
Actor WallIn = getOneObjectAtOffset(+15, 0, WallIn.class);
if(Around != null){
return false;
}
else if (WallIn != null){
return false;
}else{
return true;
}
}
public boolean WallSouth()
{
Actor Around = getOneObjectAtOffset(0, +15, Around.class);
Actor WallIn = getOneObjectAtOffset(0, +15, WallIn.class);
if(Around != null){
return false;
}
else if (WallIn != null){
return false;
}else{
return true;
}
}
public boolean WallWest()
{
Actor WallIn = getOneObjectAtOffset(-15, 0, WallIn.class);
Actor Around = getOneObjectAtOffset(-15, 0, Around.class);
if(WallIn != null){
return false;
}
else if (Around != null){
return false;
}else{
return true;
}
}
}
