Types/Dice/get_DB.ps1
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param() # If $dice is a PSModuleInfo object and it does not have a '.DB' property, if ($dice -is [Management.Automation.PSModuleInfo] -and (-not $dice.'.DB')) { # then create a new DataSet object named 'Dice'. $diceDB = [Data.DataSet]::new('Dice') $dice.psobject.properties.add([psnoteproperty]::new('.DB', $diceDB), $true) # Create a new DataTable object named 'Dice' and add it to the DataSet object. $diceTable = $diceDB.Tables.Add('Dice') # A dice will have a name and a number of sides. $diceTable.Columns.AddRange(@( [Data.DataColumn]::new('Name', [string], '', 'Attribute') [Data.DataColumn]::new('Sides', [int], '', 'Attribute') )) # The sides of a dice will be the primary key. $diceTable.PrimaryKey = @($diceTable.Columns['Sides']) # The chance of rolling a side will be 1 divided by the number of sides, # and will be calculated using an expression property. $chanceColumn = $diceTable.Columns.Add('Chance', [double], '1/Sides') $chanceColumn.ColumnMapping = 'Attribute' # Create a few dice objects. $null = @( New-Dice -Name 'coin' -Sides 2 # -Face '🦸','🦹' New-Dice -Name 'Six-Sided-Dice' -Sides 6 # -Faces '⚀','⚁','⚂','⚃','⚄','⚅' New-Dice -Name 'D20' -Sides 20 ) # Accept the changes to the Dice Table. $diceTable.AcceptChanges() } # Return the Dice Database (all of the code above should only run once per module load). return $dice.'.DB' |