Gamelib/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameState.java

package uulm.teamname.marvelous.gamelibrary.gamelogic;

import uulm.teamname.marvelous.gamelibrary.IntVector2;
import uulm.teamname.marvelous.gamelibrary.entities.*;
import uulm.teamname.marvelous.gamelibrary.Tuple;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/** Represents the state of a game instance. */
class GameState {
    /** The size of the map */
    public final IntVector2 mapSize;

    /** The list of {@link Entity}s inside the game */
    public final EntityManager entities = new EntityManager();

    /** The set of stones that are yet to be placed on the map */
    public HashSet<StoneType> unvomitedStones = new HashSet<>(Arrays.asList(StoneType.values()));

    /** The total amount of full turn cycles that occurred */
    public int roundNumber = 0;

    /** The turn order of every character */
    public ArrayList<EntityID> turnOrder = new ArrayList<>();

    /** The total amount of turns that occurred */
    public int turnNumber = 0;

    /** The {@link EntityID} of the active character */
    public EntityID activeCharacter = null;

    /** Whether or not the game was won */
    public boolean won = false;

    /** The global cooldown of every infinity stone */
    public final StoneCooldownManager stoneCooldown = new StoneCooldownManager();

    /** The store of the {@link WinCondition} data for every win condition for each player */
    public final HashMap<Tuple<EntityType, WinCondition>, Integer> winConditions = new HashMap<>();

    /**
     * Constructs a new {@link GameState}.
     * @param mapSize The size of the map
     */
    public GameState(IntVector2 mapSize) {
        this.mapSize = mapSize;
    }

    /**
     * Clones the state into a new {@link GameState} object. This is slow.
     * @return The cloned game state
     */
    public GameState snapshot() {
        GameState clone = new GameState(this.mapSize);

        clone.entities.cloneFrom(entities);

        clone.roundNumber = roundNumber;

        clone.turnOrder = new ArrayList<>();
        for(EntityID id: turnOrder) {
            clone.turnOrder.add(id.clone());
        }

        clone.turnNumber = turnNumber;

        clone.activeCharacter = activeCharacter != null ? activeCharacter.clone() : null;

        clone.won = won;

        clone.stoneCooldown.cloneFrom(stoneCooldown);

        for(Tuple<EntityType, WinCondition> condition: winConditions.keySet()) {
            clone.winConditions.put(condition, winConditions.get(condition));
        }

        return clone;
    }

    /**
     * Restores the state rom the given {@link GameState}. This is slow.
     * @param state The state to restore from
     */
    public void restore(GameState state) {
        mapSize.set(state.mapSize);

        entities.cloneFrom(state.entities);

        roundNumber = state.roundNumber;

        turnOrder = new ArrayList<>();
        for(EntityID id: state.turnOrder) {
            turnOrder.add(id.clone());
        }

        turnNumber = state.turnNumber;

        activeCharacter = state.activeCharacter != null ? state.activeCharacter.clone() : null;

        won = state.won;

        stoneCooldown.cloneFrom(state.stoneCooldown);

        for(Tuple<EntityType, WinCondition> condition: state.winConditions.keySet()) {
            winConditions.put(condition, state.winConditions.get(condition));
        }
    }
}