Hello, I'm pretty much a fresh beginner to Greenfoot and recently have come across some problems which I seem not to be able to tackle on my own.
First of all I have a problem with the turn() method. I don't want it to rotate my object in the direction of the move. I've tried the solutions written here http://www.greenfoot.org/topics/2318 but these methods seem to supersede the move method, i.e. the objects are made to go randomly around, and setRotation makes them go in certain direction:/
Secondly I'd like certain objects to dissapear at certain locations. The project I'm working on is a simulation of a restaurant in which waiters are moving and attend the tables. Waiter 0 looks for table 0 - if it reaches a table 0 (the square around it) it should dissapear (and change the table number to 1 in the process) and if it reaches table 1 or 2, it won't dissapear, but will have to avoid steping into that table. It should also be able to avoid another waiter (not step into him)
Here's my code. I figured out the random movement in the world and the colision detection with it's borders, but the turning and dissapearing problem is just impenetrable for me atm.
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
import java.util.*; // Potrebujeme pracovat se seznamem (java.util.List)
/*
* Trida, predstavujici cisniky
*/
public class Waiter extends Actor
{
//Celkovy plat, reprezentovany jako pocet kol vsech cisniku
private static Integer wages = 0;
/*
* Vynulovani statistik (pri vytvareni nove inhstance sveta)
*/
public static void resetStatistics() {
wages = 0;
}
/*
* Vraci celkovy plat vsech cisniku
*/
public static Integer getWages() {
return wages;
}
//Typ cisnika
private Integer type;
// Cisnik je vytvaren primo z restaurace, ktera rozhoduje o jeho typu
public Waiter(Integer type) {
this.type = type;
//Na disku jsou soubory waiter_0.png, waiter_1.png a waiter_2.png
setImage("waiter_"+type+".png");
}
public void act(){
move (1);
if (Greenfoot.getRandomNumber(100)<65)
{
turn(Greenfoot.getRandomNumber(180)-90);
}
if (getX() <= 1 || getX() >= getWorld().getWidth() - 1)
{
turn(45);
}
if (getY() <= 1 || getY() >= getWorld().getHeight() - 1)
{
turn (45);
}
if ((getX() == 1) && (getY() == 1)){
turn (180);
}
if (Greenfoot.getRandomNumber(1000)==0) {
((BlueWorld)getWorld()).removeWaiter();
getWorld().removeObject(this);
} else {
//TODO: Doplnit interakci s ostatnimi objekty (podle zadani)
}
wages++; //penize za kazde kolo aktivniho cisnika
moveAndTurn();
//TODO: Doplnit pohyb cisnika
}
}
public void eat(){
Actor waiter;
waiter = getOneObjectAtOffset(0,0, Actor.class);
if (waiter != null)
{World world=getWorld();
world.removeObject(waiter);
}
}
}
