Gamelib/src/main/java/uulm/teamname/marvelous/gamelibrary/entities/EntityID.java

package uulm.teamname.marvelous.gamelibrary.entities;

import java.util.Objects;

/** Represents a distinct identification for every {@link Entity} in a game. */
public class EntityID {
    /** The index of the entity */
    public final int id;

    /** The type of the entity */
    public final EntityType type;

    /**
     * Constructs a new {@link Entity}-{@link EntityID} based on the given index and {@link EntityType}.
     * @param type The type of the entity
     * @param id The index of the entity
     */
    public EntityID(EntityType type, int id) {
        this.id = id;
        this.type = type;
    }

    /**
     * Checks if the id has the same {@link EntityType} as the given one.
     * @param other The type to compare to
     * @return Whether or not the id has the same type
     */
    public boolean isSameType(EntityType other) {
        return type == other;
    }

    /**
     * Clones this entity id.
     * @return The cloned {@link EntityID}
     */
    public EntityID clone() {
        return new EntityID(type, id);
    }

    /**
     * Serializes the id for debugging.
     * @return A debug string containing all the necessary information about the id
     */
    public String toString() {
        return "["+type.toString()+":"+id+"]";
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        EntityID entityID = (EntityID) o;
        return id == entityID.id && type == entityID.type;
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, type);
    }
}