struct Skill
{
    float timePassed;
};

Skill* get_skill(Entity* entity, int skillID)
{
    if(entity.type == TYPE_HERO)
    {
        for(int skillIdx = 0; skillIdx < heroStates[entity.heroStateIndex].skillCount; skillIdx++)
        {
            if(heroStates[entity.heroStateIndex].skills[skillIndex].id == skillID)
            {
                // this hero has the queried skill, return it somehow
                // return &entity.skills[???];
            }
        }
    }
    if(entity.type == TYPE_ENEMY)
    {
        // idk how enemy skills work, maybe they are based on the enemy type?
        // so switch on the type
        // return &entity.skills[??];
    }
}