Save world to file

Remove everything you tried and show entire SaboterWorld class codes (copy/paste). Also, if it does not extend the World class directly, show what it extends as well.

Here it is. public class SaboterWorld extends World implements Serializable { private static final long serialVersionUID = 1L; RoundManager rm = new RoundManager(); Actor nextTurnActor; /** * UX feature, slow UI generate when printed for the first time */ public boolean firstTime = false; private Actor activeCard = new WayActor("what"); public Actor getActiveCard() { return activeCard; } public void setActiveCard(Actor activeCard) { this.activeCard = activeCard; } Actor deckActor, trashActor; LabelActor labelActor; LabelActor labelManual; Package deck = new Package(); Color transparent = new Color(1f, 1f, 1f, 0f); public int getIndex() { return index; } public void setIndex(int index) { this.index = index; } int index; Boolean trashed = false; Boolean useCard = false; Boolean seeEndingCard = false; List<Player> playersList; int numberOfPlayers; int maxRounds = 3; static int roundCounter = 1; int round; public SaboterWorld(){ super(11, 7, 85); } public SaboterWorld(int numberOfPlayers, List<Player> players) { super(11, 7, 85); setBackground("bcg.png"); SaboteurGame saboteurGame = new SaboteurGame(); playersList = players; this.round += roundCounter(); rm.setPlayers(playersList); rm.setActivePlayer(playersList.get(0)); this.numberOfPlayers = numberOfPlayers; rm.getTable().generateStartingEndingCards(); rm.dealCards(deck, playersList); /* GENERATE BASIC BLANK MAP */ generateBlankMap(); generateStartingCard(); generateEndingCards(); generateUI(); labelManual = new ManualActor(getSaboterWorld()); addObject(labelManual, this.getWidth() - 1, 0); addObject(new SaveButton(this), this.getWidth() - 2, 0); deckActor = new DeckActor("Card"); trashActor = new DeckActor("kos"); labelActor = new LabelActor(Integer.toString(deck.getDrawDeck().size()), 50, 20, 60, Color.white, transparent); addObject(deckActor, 10, 5); addObject(labelActor, 10, 5); addObject(trashActor, 10, 6); printInventory(); //cards in hand } private void nextTurn() { removeObjects(getObjectsAt(9, 5, null)); System.out.println("next turn pressed"); rm.addTurn(); removeObjects(getObjectsAt(this.getWidth() - 2, 1, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 2, null)); removeObjects(getObjectsAt(this.getWidth() - 1, 3, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 3, null)); removeObjects(getObjectsAt(this.getWidth() - 1, 4, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 4, null)); setSeeEndingCard(false); firstTime = true; printInventory(); firstTime = false; generateUI(); trashed = false; } public static synchronized int roundCounter(){ return roundCounter++; } public void removeUI(){ removeObjects(getObjectsAt(this.getWidth() - 2, 2, null)); removeObjects(getObjectsAt(this.getWidth() - 1, 3, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 3, null)); removeObjects(getObjectsAt(this.getWidth() - 1, 4, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 1, null)); removeObjects(getObjectsAt(this.getWidth() - 2, 4, null)); } public SaboterWorld getSaboterWorld() { return this; } @Override public void act() { if (rm.getActivePlayer().getHand().size() >= 9) { if (getObjectsAt(9, 5, null).size() == 0) { var tooMuchCards = new LabelActor("Too many\ncards in\nhand", 18, 100, 100, Color.black, transparent); addObject(tooMuchCards, 9, 5); } } if (mouseClicked(deckActor) || mouseClicked(labelActor)) { removeObject(labelActor); if (rm.getActivePlayer().getHand().size() >= 9) { System.out.println("Too much cards in hand"); //var tooMuchCards = new LabelActor("Too much\ncards", 18, 20, 60, Color.black, transparent); //addObject(tooMuchCards, 9, 5); //delay(150); } else { rm.getActivePlayer().addToHand(deck.drawCard(), deck); } labelActor = new LabelActor(Integer.toString(deck.getDrawDeck().size()), 50, 20, 60, Color.white, transparent); addObject(labelActor, 10, 5); printInventory(); //todo naxt turn label se vymaze //todo delay delay(100); if (getUseCard()) { setUseCard(false); } nextTurn(); } if (mouseClicked(trashActor)) { if (!trashed && getIndex() != -1) { System.out.println(index); rm.getActivePlayer().throwOutHand(index); printInventory(); setIndex(-1); } trashed = true; } } public int getRound() { return round; } public Boolean getUseCard() { return useCard; } public void setUseCard(Boolean useCard) { this.useCard = useCard; } /** * Generates Starting card * * @author xderynk * @version etapa 4 */ private void generateStartingCard() { BasicCard starting = new BasicCard("Starting"); addObject(starting, rm.getTable().getStartingCards().get(0).getxCoordinate(), rm.getTable().getStartingCards().get(0).getyCoordinate()); } private void generateBlankMap() { // minus 2 bc last 2 rows and cols are reserved for UI for (int i = 0; i < this.getWidth() - 2; i++) { for (int j = 0; j < this.getHeight() - 2; j++) { MapActor actor = new MapActor(this); addObject(actor, i, j); } } } /** * @author xnguyen4 * @version etapa 4 */ public void generateUI() { addObject(new LabelActor(rm.getActivePlayer().getId()), this.getWidth() - 2, 1); // zatim pouzity pevny string, jelikoz hrace to jeste negeneruje, takze active player je nullptr addObject(new LabelActor("Body: " + Integer.toString(rm.getActivePlayer().getPoints())), this.getWidth() - 2, 2); //vsecko zatim napevno addObject(new LabelActor("Role:"), this.getWidth() - 2, 3); addObject(new LabelActor(rm.getActivePlayer().getPlayerClass()), this.getWidth() - 1, 3); addObject(new LabelActor("Hrat: "), this.getWidth() - 2, 4); addObject(new LabelActor(Boolean.toString(rm.getActivePlayer().isCanPlay())), this.getWidth() - 1, 4); } public class DeckActor extends Actor implements Serializable{ public DeckActor(String cardTexture) { setImage("images/" + cardTexture + ".png"); } @Override public void act() { if (mouseClicked(this)) { } } } /** * Generates ending cards, for now, cards are visible for testing * * @author xderynk * @version etapa 4 */ private void generateEndingCards() { EndingCardsActor end1 = new EndingCardsActor(rm.getTable().getEndingCards().get(0).getType()); EndingCardsActor end2 = new EndingCardsActor(rm.getTable().getEndingCards().get(1).getType()); EndingCardsActor end3 = new EndingCardsActor(rm.getTable().getEndingCards().get(2).getType()); addObject(end1, rm.getTable().getEndingCards().get(0).getxCoordinate(), rm.getTable().getEndingCards().get(0).getyCoordinate()); addObject(end2, rm.getTable().getEndingCards().get(1).getxCoordinate(), rm.getTable().getEndingCards().get(1).getyCoordinate()); addObject(end3, rm.getTable().getEndingCards().get(2).getxCoordinate(), rm.getTable().getEndingCards().get(2).getyCoordinate()); } public static class BasicCard extends Actor { public BasicCard(String cardTexture) { setImage("images/" + cardTexture + ".png"); } } /** * @author xnguyen4 * @version etapa 5 */ public class WayActor extends Actor implements Serializable{ //wayActor lives in hand String cardTexture; public WayActor(String cardTexture) { this.cardTexture = cardTexture; if (cardTexture.isEmpty()) { setImage("images/what.png"); } else { setImage("images/" + cardTexture + ".png"); } } @Override public void act() { if (!getActiveCard().equals(this) && getIndex() != this.getX()) { setImage("images/" + cardTexture + ".png"); } if (mouseClicked(this)) { setActiveCard(this); setIndex(this.getX()); try { setImage("images/active/" + cardTexture + ".png"); } catch (Exception e) { setImage("images/" + cardTexture + ".png"); } //rm.setActive(rm.getActivePlayer().getHand().get(index)); } } } /** * @author xnguyen4 * @version etapa 5 */ public class ActionActor extends Actor implements Serializable{ int count = 0; String cardTexture; public ActionActor(String cardTexture) { setImage("images/" + cardTexture + ".png"); this.cardTexture = cardTexture; } @Override public void act() { if (!getActiveCard().equals(this) && getIndex() != this.getX()) { setImage("images/" + cardTexture + ".png"); } if (mouseClicked(this)) { setActiveCard(this); try { setImage("images/active/" + cardTexture + ".png"); } catch (Exception e) { setImage("images/" + cardTexture + ".png"); } } if (mouseClicked(this) && !getUseCard()) { if (getIndex() != this.getX()) { count = 0; } setIndex(this.getX()); count++; if (count == 2) { setWorld(new ChoosePlayerWorld(getSaboterWorld(), playersList)); setUseCard(true); count = 0; } } else if (mouseClicked(this) && getUseCard()) { setIndex(this.getX()); } } } /** * @author xnguyen4 * @version etapa 5 */ public class MapCheckActor extends Actor implements Serializable{ int count = 0; String cardTexture; public MapCheckActor(String cardTexture) { setImage("images/" + cardTexture + ".png"); this.cardTexture = cardTexture; } @Override public void act() { if (!getActiveCard().equals(this) && getIndex() != this.getX()) { setImage("images/" + cardTexture + ".png"); } if (mouseClicked(this)) { setActiveCard(this); try { setImage("images/active/" + cardTexture + ".png"); } catch (Exception e) { setImage("images/" + cardTexture + ".png"); } } if (mouseClicked(this) && !getUseCard()) { if (getIndex() != this.getX()) { count = 0; } setIndex(this.getX()); count++; if (count == 2) { setUseCard(true); setSeeEndingCard(true); rm.getActivePlayer().getHand().remove(getIndex()); printInventory(); count = 0; } } else if (mouseClicked(this) && getUseCard()) { setIndex(this.getX()); } } } /* public void resetEndingCard(){ EndingCardsActor removeObjects(getObjectsAt(this.getWidth() - 2, 2, null)); addObject(, this.getWidth() - 2, 2); }*/ public Boolean getSeeEndingCard() { return seeEndingCard; } public void setSeeEndingCard(Boolean seeEndingCard) { this.seeEndingCard = seeEndingCard; } /** * @author xderynk * @version etapa 4 */ void printInventory() { for (int row = 0; row < getWidth() - 1; row++) { removeObjects(getObjectsAt(row, getHeight() - 2, null)); } for (int row = 0; row < getWidth() - 1; row++) { removeObjects(getObjectsAt(row, getHeight() - 1, null)); } int x = 0; for (int j = 0, i = 0; j < rm.getActivePlayer().getHand().size(); j++, i++) { if (i >= getWidth() - 2) { WayActor way = new WayActor(rm.getActivePlayer().getHand().get(j).getType()); addObject(way, x, 5); x++; if (firstTime) { delay(4); } } else { if (rm.getActivePlayer().getHand().get(j).isTool()) { ActionActor action = new ActionActor(rm.getActivePlayer().getHand().get(j).getType()); addObject(action, i, getHeight()); if (firstTime) { delay(4); } } else if (rm.getActivePlayer().getHand().get(j).isMap()) { MapCheckActor map = new MapCheckActor(rm.getActivePlayer().getHand().get(j).getType()); addObject(map, i, getHeight()); if (firstTime) { delay(4); } } else { WayActor way = new WayActor(rm.getActivePlayer().getHand().get(j).getType()); addObject(way, i, getHeight()); if (firstTime) { delay(4); } } } } } public class EndingCardsActor extends Actor implements Serializable{ String cardTexture; EndingCard end; boolean reachedEnd = false; int x, y; Gold nugget; boolean reachedEndingCard = false; public EndingCardsActor(String cardTexture) { this.cardTexture = cardTexture; } public boolean isReachedEndingCard() { return reachedEndingCard; } public void setReachedEndingCard(boolean reachedEndingCard) { this.reachedEndingCard = reachedEndingCard; } @Override public void act() { for(int i = 0; i < rm.getTable().getEndingCards().size(); i++) { end = (EndingCard) rm.getTable().getEndingCards().get(i); if(rm.getTable().getEndingCards().isEmpty()){ break; }else { if (end.isReached()) { reachedEnd = true; y = end.getyCoordinate(); x = i; } } } if(mouseClicked(this) && reachedEnd) { if(this.getY() == y) { setImage("images/" + cardTexture + ".png"); this.setReachedEndingCard(true); if(rm.getTable().getEndingCards().get(x).isGoldCard()){ nugget = (Gold) rm.getTable().getEndingCards().get(x); rm.getActivePlayer().setPoints(nugget.getNugget()); removeUI(); generateUI(); delay(100); if(getRound() != maxRounds) { for(int i = 0; i < playersList.size(); i++){ for(int j = 1; j < playersList.get(i).getHand().size(); j++){ playersList.get(i).removeHand(); } } setWorld(new SaboterWorld(new SaboteurGame(), numberOfPlayers, playersList)); }else { System.out.println("END"); // fixme zde bude kod na leaderboard } } rm.getTable().getEndingCards().remove(x); } }else if(!reachedEnd) { setImage("images/Card.png"); setReachedEndingCard(false); } if (mouseClicked(this) && getSeeEndingCard() && !isReachedEndingCard()) { setImage("images/" + cardTexture + ".png"); delay(100); setImage("images/Card.png"); setSeeEndingCard(false); } } } }

There is " setWorld(new SaboterWorld(new SaboteurGame(), numberOfPlayers, playersList));" in EndingCard Actor, I forgot to erase SaboteurGame because it is not required in constructor. So look at it as if it's not there.

I got this error now after changing every var to certain type. "java.io.InvalidClassException: cz.mendelu.greenfoot.SaboterWorld; no valid constructor at java.base/java.io.ObjectStreamClass$ExceptionInfo.newInvalidClassException(ObjectStreamClass.java:170) at java.base/java.io.ObjectStreamClass.checkDeserialize(ObjectStreamClass.java:917) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2203) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1712) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:519) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:477) at cz.mendelu.pjj.SaboteurGame.load(SaboteurGame.java:55) at cz.mendelu.greenfoot.LoadButton.onClick(LoadButton.java:24) at cz.mendelu.greenfoot.ButtonActor.act(ButtonActor.java:23) at greenfoot.core.Simulation.actActor(Simulation.java:604) at greenfoot.core.Simulation.runOneLoop(Simulation.java:562) at greenfoot.core.Simulation.runContent(Simulation.java:221) at greenfoot.core.Simulation.run(Simulation.java:211) java.lang.IllegalArgumentException: Load game failed. at cz.mendelu.pjj.SaboteurGame.load(SaboteurGame.java:62) at cz.mendelu.greenfoot.LoadButton.onClick(LoadButton.java:24) at cz.mendelu.greenfoot.ButtonActor.act(ButtonActor.java:23) at greenfoot.core.Simulation.actActor(Simulation.java:604) at greenfoot.core.Simulation.runOneLoop(Simulation.java:562) at greenfoot.core.Simulation.runContent(Simulation.java:221) at greenfoot.core.Simulation.run(Simulation.java:211) Caused by: java.io.InvalidClassException: cz.mendelu.greenfoot.SaboterWorld; no valid constructor at java.base/java.io.ObjectStreamClass$ExceptionInfo.newInvalidClassException(ObjectStreamClass.java:170) at java.base/java.io.ObjectStreamClass.checkDeserialize(ObjectStreamClass.java:917) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2203) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1712) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:519) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:477) at cz.mendelu.pjj.SaboteurGame.load(SaboteurGame.java:55) ... 6 more" As for load buttong it looks like this: public class LoadButton extends ButtonActor implements Serializable { private static final long serialVersionUID = 1L; public LoadButton() { super(" "); setImage("images/Load.png"); } @Override protected void onClick() { String name = Greenfoot.ask("Name of game: "); SaboterWorld world = SaboteurGame.load(name); Greenfoot.setWorld(world); } }

this is my load method: public static SaboterWorld load(String name){ try { FileInputStream fileIn = new FileInputStream(file(name)); ObjectInputStream objectIn = new ObjectInputStream(fileIn); System.out.println("Save file was successfully loaded"); return (SaboterWorld) objectIn.readObject(); } catch (FileNotFoundException e) { e.printStackTrace(); throw new IllegalArgumentException("Load game failed.", e); } catch (IOException e) { e.printStackTrace(); throw new IllegalArgumentException("Load game failed.", e); } catch (ClassNotFoundException e) { e.printStackTrace(); throw new IllegalArgumentException("Load game failed.", e); } } This "System.out.println("Save file was successfully loaded");" appeared unlike before.

I have no experience with using Serializable with regards to saving/reading Object types. It may be (and this is just a guess) that Object references within your SaboterWorld class need to be Serializable as well -- and you seem to have quite a few Object reference fields. Better might be to read/write a text file the defines the game and describes its current state. You might make use of the Object.toString method to help organize the data.

Yeah. You won't need Serializable or serialVersionUID.