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60 lines
1.6 KiB
PowerShell
60 lines
1.6 KiB
PowerShell
<#
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.SYNOPSIS
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Writes the matrix
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.DESCRIPTION
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This PowerShell script writes the animated Matrix.
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.EXAMPLE
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PS> ./write-fractal
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.LINK
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https://github.com/fleschutz/PowerShell
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.NOTES
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Author: Markus Fleschutz | License: CC0
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#>
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function CalculateMatrix { param([int]$Pos, [char]$Letter)
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[int]$maxx = $rui.MaxWindowSize.Width
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[int]$maxy = $rui.MaxWindowSize.Height
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[int]$y = 0
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for ([int]$x = 0; $x -lt $maxx; $x++) {
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if ($x -eq $Pos) {
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$global:buf[$y * $maxx + $x] = $Letter
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} else {
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$global:buf[$y * $maxx + $x] = [char]32
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}
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}
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for ([int]$y = ($maxy - 1); $y -gt 0; $y--) {
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for ([int]$x = 0; $x -lt $maxx; $x++) {
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$global:buf[$y * $maxx + $x] = $global:buf[($y - 1) * $maxx + $x]
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}
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}
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}
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function NextLetter {
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if ($global:index -eq 6) { $global:index = 0; $global:pos = [int]$global:generator.next(0, $rui.MaxWindowSize.Width) }
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switch($global:index++) {
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0 { return 'X' }
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1 { return 'I' }
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2 { return 'R' }
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3 { return 'T' }
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4 { return 'A' }
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5 { return 'M' }
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}
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}
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$ui = (Get-Host).ui
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$rui = $ui.rawui
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$buffer0 = ""
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1..($rui.MaxWindowSize.Width * $rui.MaxWindowSize.Height) | ForEach-Object { $buffer0 += " " }
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$global:buf = $buffer0.ToCharArray()
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$global:generator = New-Object System.Random
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$global:pos = [int]$global:generator.next(0, $rui.MaxWindowSize.Width)
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$global:index = 0
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while ($true) {
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$Letter = NextLetter
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CalculateMatrix $global:pos $Letter
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[console]::SetCursorPosition(0,0)
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[string]$Screen = New-Object system.string($global:buf, 0, $global:buf.Length)
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Write-Host -foreground green $Screen -noNewline
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}
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exit 0 # success |