Invoke-CoinToss.ps1

Function Invoke-CoinToss {
 
	[cmdletbinding(DefaultParameterSetName="_AllParameterSets")]
	Param(
	[Parameter(ParameterSetName="Boolean")]
	[switch]$AsBoolean,
	[Parameter(ParameterSetName="EvenOdd")]
	[switch]$EvenOdd
	)
	 
	Write-Verbose "Using parameter set $($PSCmdlet.ParameterSetName)"
	 
	#get a random number between 1 and 100 to test
	$i = Get-Random -Minimum 1 -Maximum 100
	Write-Verbose "Random result = $i"
	 
	#use the modulo operator
	if ($i%2) {
		Write-Verbose "Odd/Heads/True"
		Switch ($PSCmdlet.ParameterSetName) {
		 "Boolean" { $True}
		 "EvenOdd" {"Odd" }
		 Default {"Heads"}
		} #switch
	} #if
	else {
		Write-Verbose "Even/Tails/False"
		Switch ($PSCmdlet.ParameterSetName) {
		 "Boolean" { $False}
		 "EvenOdd" {"Even" }
		 Default {"Tails"}
		} #switch
	} #else
 
} #end Invoke-CoinToss
Set-Alias -Name Flip-Coin -Value Invoke-CoinToss