tiny_settlement_schule/src/main/java/controller/RessourceManager.java

package controller;

import controller.tiles.interactive.InteractiveTileController;
import util.GAMESTATE;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;


public class RessourceManager {
    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
    private final GameController gameController;

    public RessourceManager(GameController gameController) {
        this.gameController = gameController;
    }

    public void start() {
        scheduler.scheduleAtFixedRate(() -> {
            if (!gameController.isRunning()) {
                scheduler.shutdown();
                return;
            }

            if(gameController.getView().gameState == GAMESTATE.INVENTORY || gameController.getView().gameState == GAMESTATE.PLAY)
            calculateResources();
        }, 0, 1, TimeUnit.SECONDS);
    }

    public void stop() {
        scheduler.shutdownNow();
    }

    private void calculateResources() {
        // If interactiveTileControllers can change concurrently, consider making a snapshot:
        List<InteractiveTileController> snapshot;

        synchronized(gameController.interactiveTileControllers) {
            snapshot = new ArrayList<>(gameController.interactiveTileControllers);
        }
        for (InteractiveTileController c : snapshot) {
            int spI = c.getModel().getSecondsPerItem();
            // Avoid division by zero or spI <= 0:
            if (spI > 0) {
                // You need to track elapsed seconds per controller or use a shared seconds counter:
                // For simplicity, you could store a counter in each model:
                c.getModel().incrementSecondCounter();
                if (c.getModel().getSecondCounter() % spI == 0) {
                    c.getModel().addItem();
                    System.out.println("New amount: " + c.getModel().getItemAmount());
                }
            }
        }
    }
}