sdm03/src/main/java/com/github/dtschust/zork/repl/actions/InventoryAction.java

package com.github.dtschust.zork.repl.actions;

import com.github.dtschust.zork.ZorkGame;
import com.github.dtschust.zork.repl.Action;

import java.util.List;

public class InventoryAction implements Action {
    @Override
    public boolean matchesInput(List<String> arguments) {
        return arguments.get(0).equals("i");
    }

    @Override
    public boolean run(ZorkGame game, List<String> arguments) {

        if (game.inventory.isEmpty()) {
            game.stream.println("Inventory: empty");
        } else {
            final String output = "Inventory: " + String.join(", ", game.inventory);
            game.stream.println(output);
        }
        return true;
    }
}