pragma solidity ^0.6.0;

import "./DynamicAccessControl.sol";
import "./RoleSets.sol";

contract ControlledContract is DynamicAccessControl {
    using RoleSets for RoleSets.RoleSet;

    RoleSets.RoleSet rootRoleSet;
    RoleSets.RoleSet secondaryRoleSet;
    RoleSets.RoleSet tertiaryRoleSet;

    bytes32 public constant ROOT_ROLE_SET = 0x00;

    constructor() public DynamicAccessControl(msg.sender) {
        rootRoleSet.addRoleId(ROOT_ROLE_SET);
        secondaryRoleSet.addRoleId(ROOT_ROLE_SET);
        tertiaryRoleSet.addRoleId(ROOT_ROLE_SET);
    }

    function addRoleToSecondarySet(bytes32 _roleId) public onlyMembersOf(rootRoleSet.roleIds){
        secondaryRoleSet.addRoleId(_roleId);
    }

    function addRoleToTertiarySet(bytes32 _roleId) public onlyMembersOf(secondaryRoleSet.roleIds){
        tertiaryRoleSet.addRoleId(_roleId);
    }

}

Compile and Run ▶