CanAffordUpgrade

Usage

• Called before resources for changing a building block grade are checked
• Return false to prevent player from affording upgrade

Examples

Allow grade change to Top Tier without using resources

object CanAffordUpgrade(BasePlayer player, BuildingBlock block, BuildingGrade.Enum grade)
{
    if (grade == BuildingGrade.Enum.TopTier)
    {
        return true;
    }

    return null;
}