sdm03/src/main/java/com/github/dtschust/zork/types/ZorkCreature.java

package com.github.dtschust.zork.types;

import com.github.dtschust.zork.ZorkCondition;
import com.github.dtschust.zork.parser.ZorkGame;

import java.util.*;

/* Creature*/
public class ZorkCreature extends ZorkObject implements HasPrintsAndActions {
    private final Set<String> vulnerabilities;
    private final List<ZorkCondition> conditions;
    private final List<String> print;
    private final List<String> action;

    public ZorkCreature(final String name,
                        final String description,
                        final Collection<String> vulnerabilities,
                        final Collection<ZorkCondition> conditions,
                        final Collection<String> prints,
                        final Collection<String> actions) {
        super(name, description);
        this.vulnerabilities = new HashSet<>(vulnerabilities);
        this.conditions = new ArrayList<>(conditions);
        this.print = new ArrayList<>(prints);
        this.action = new ArrayList<>(actions);
    }

    /* Evaluate the success of an attack*/

    /**
     * Given a game instance and a weapon, returns whether the attack is successful, i.e. if the creature is vulnerable
     * to the weapon and all conditions for a successful attack are satisfied
     *
     * @param game   the game
     * @param weapon the weapon
     * @return true if the attack is successful
     */
    public boolean isAttackSuccessful(final ZorkGame game, final String weapon) {
        return vulnerabilities.contains(weapon) && conditions.stream().allMatch(c -> c.evaluate(game));
    }

    @Override
    public List<String> getPrints() {
        return Collections.unmodifiableList(print);
    }

    @Override
    public List<String> getActions() {
        return Collections.unmodifiableList(action);
    }
}