PlayerSpeedSort

gistfile1.txt

    // Sort so that players are first, and everything else is sorted by speed
    struct PlayerSpeedSort : IComparer<Entity>
    {
        ComponentDataFromEntity<Speed> speedFromEntity;
        ComponentDataFromEntity<Player> playerFromEntity;

        public PlayerSpeedSort(ComponentDataFromEntity<Speed> speedFromEntity, ComponentDataFromEntity<Player> playerFromEntity)
        {
            this.speedFromEntity = speedFromEntity;
            this.playerFromEntity = playerFromEntity;
        }

        public int Compare(Entity a, Entity b)
        {
            bool aIsPlayer = playerFromEntity.HasComponent(a);
            bool bIsPlayer = playerFromEntity.HasComponent(b);

            if (aIsPlayer && !bIsPlayer) return -1;
            if (!aIsPlayer && bIsPlayer) return 1;

            int aSpeed = speedFromEntity[a].value;
            int bSpeed = speedFromEntity[b].value;

            if (aSpeed > bSpeed) return -1;
            if (aSpeed < bSpeed) return 1;

            return 0;
        }
    }