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

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

import com.github.dtschust.zork.ZorkGame;
import com.github.dtschust.zork.objects.ZorkItem;
import com.github.dtschust.zork.objects.ZorkRoom;
import com.github.dtschust.zork.repl.Action;

import java.util.List;
import java.util.Optional;

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

    @Override
    public int getMinimumArgCount() {
        return 2;
    }

    @Override
    public boolean run(ZorkGame game, List<String> arguments) {
        final String whatName = arguments.get(1);
        final Optional<ZorkItem> what = game.getItem(whatName);

        if (game.inventory.contains(whatName) && what.isPresent()) {
            final ZorkRoom tempRoom = game.getCurrentRoom();

            game.inventory.remove(whatName);
            tempRoom.addObject(what.get());

            game.stream.println(whatName + " dropped.");
            return true;
        } else {
            return false;
        }
    }
}