# Swimming Fish ASCII Animation
# Usage: irm your-url/fish-animation.ps1 | iex

# Hide cursor
[Console]::CursorVisible = $false

# Large Fish ASCII Art patterns (swimming right to left)
$fishFrames = @(
    @"
                   ,"(
                ////\
                           _
               (//////--,,,,,_____            ,"
             _;"""----/////_______;,,        //
 __________;"o,-------------......"""""`'-._/(
       ""'==._.__,;;;;"""           ____,.-.==
              "-.:______,...;---""/"   "    \(
                  '-._      `-._("           \\
                      '-._                    '._
"@,
    @"
                   ,"(
                ////\
                           _
               (//////--,,,,,_____            ,"
             _;"""----/////_______;,,        //
 __________;"o,-------------......"""""`'-._/(
       ""'==._.__,;;;;"""           ____,.-.==
              "-.:______,...;---""/"   "    \(
                  '-._      `-._("           \\
                      '-._                    '._
"@
)

# Get terminal width
$width = $Host.UI.RawUI.WindowSize.Width

# Clear screen
Clear-Host

# Animation loop - infinite
$position = $width
$frameIndex = 0
$startTime = Get-Date

try {
    while ($true) {
        # Clear screen
        Clear-Host
        
        # Calculate elapsed time
        $elapsed = (Get-Date) - $startTime
        $timeString = "{0:D2}:{1:D2}:{2:D2}" -f $elapsed.Hours, $elapsed.Minutes, $elapsed.Seconds
        
        Write-Host "`n  YOUR COMPUTER HAS BEEN TAKEN OVER BY FISH" -ForegroundColor Cyan
        Write-Host "  Time since fish invasion: $timeString" -ForegroundColor Yellow
        Write-Host "  Please buy fish food to make them leave!" -ForegroundColor White
        Write-Host ""
        
        # Get current fish frame
        $currentFish = $fishFrames[$frameIndex % $fishFrames.Count]
        $fishLines = $currentFish -split "`n"
        
        # Draw water surface
        Write-Host ('~' * $width) -ForegroundColor DarkCyan
        Write-Host ('~' * $width) -ForegroundColor Blue
        Write-Host ""
        Write-Host ""
        
        # Draw fish with offset (swimming right to left)
        foreach ($line in $fishLines) {
            if ($line.Trim() -ne "") {
                $spaces = ' ' * [Math]::Max(0, $position)
                Write-Host "$spaces" -NoNewline
                Write-Host $line -ForegroundColor Cyan
            } else {
                Write-Host ""
            }
        }
        
        # Draw ocean floor
        Write-Host ""
        Write-Host ""
        Write-Host ('~' * $width) -ForegroundColor DarkBlue
        Write-Host ('=' * $width) -ForegroundColor DarkYellow
        
        # Update position (move left)
        $position -= 2
        
        # Reset position when fish goes off screen (loop back from right)
        # Fish is about 50 chars wide, so reset when it's fully off screen
        if ($position -lt -50) {
            $position = $width
        }
        
        $frameIndex += 1
        
        # Delay
        Start-Sleep -Milliseconds 80
    }
    
} finally {
    # Restore cursor
    [Console]::CursorVisible = $true
    Clear-Host
    #Write-Host "`n`n  FISH INVASION ENDED" -ForegroundColor Green
    Write-Host "`n  Your computer is safe... for now." -ForegroundColor Yellow
    Write-Host "`n  The fish will return...`n" -ForegroundColor Cyan
    Start-Sleep -Seconds 2
}