edition = "2023";

package mmo.cluster;

// XZ-plane area owned by a zone (vec2.y maps to world Z).
message ZoneBounds {
    float min_x = 1;
    float min_z = 2;
    float max_x = 3;
    float max_z = 4;
}

// Opaque zone identity assigned by ZoneCoordinator.
// Carries bounds so receivers can build their routing table without a separate lookup.
message ZoneId {
    uint32     id     = 1;
    ZoneBounds bounds = 2;
}

// Sent by a zone server to every peer it discovers from the coordinator.
// Establishes the sender's identity on the cluster link.
message ZoneHello {
    ZoneId zone = 1;
}

// Sent by a zone server just before it shuts down.
// Receivers must remove the named zone from their peer tables.
message ZoneBye {
    ZoneId zone = 1;
}