Scripts/cyclone-vortex.ps1
|
# Unique Concept: Particle cyclone with centripetal force creating a swirling vortex. # Particles spiral inward with velocity-based streaking and density gradients. $ErrorActionPreference = 'Stop' $esc = [char]27 $reset = "$esc[0m" function Convert-HsvToRgb { param([double]$Hue, [double]$Saturation, [double]$Value) $h = ($Hue % 1) * 6 $sector = [math]::Floor($h) $fraction = $h - $sector $p = $Value * (1 - $Saturation) $q = $Value * (1 - $fraction * $Saturation) $t = $Value * (1 - (1 - $fraction) * $Saturation) switch ($sector) { 0 { $r = $Value; $g = $t; $b = $p } 1 { $r = $q; $g = $Value; $b = $p } 2 { $r = $p; $g = $Value; $b = $t } 3 { $r = $p; $g = $q; $b = $Value } 4 { $r = $t; $g = $p; $b = $Value } default { $r = $Value; $g = $p; $b = $q } } return @([int][math]::Round($r * 255), [int][math]::Round($g * 255), [int][math]::Round($b * 255)) } $width = 100 $height = 26 $rand = [System.Random]::new(234) # Initialize particles $particles = for ($i = 0; $i -lt 180; $i++) { $angle = $rand.NextDouble() * 2 * [math]::PI $radius = 15 + $rand.NextDouble() * 30 @{ X = 50 + $radius * [math]::Cos($angle) Y = 13 + $radius * [math]::Sin($angle) * 0.6 Angle = $angle R = $radius Hue = $rand.NextDouble() } } $grid = @{} # Simulate spiral motion $steps = 25 foreach ($p in $particles) { for ($s = 0; $s -lt $steps; $s++) { $t = $s / [double]$steps # Spiral inward with rotation $r = $p.R * (1.0 - $t * 0.85) $angle = $p.Angle + $t * 8.0 $x = 50 + $r * [math]::Cos($angle) $y = 13 + $r * [math]::Sin($angle) * 0.6 $gx = [int]$x $gy = [int]$y if ($gx -ge 0 -and $gx -lt $width -and $gy -ge 0 -and $gy -lt $height) { $key = "$gx,$gy" $speed = 1.0 - $r / 45.0 if ($grid.ContainsKey($key)) { $grid[$key].Count++ $grid[$key].Speed += $speed $grid[$key].Hue += $p.Hue } else { $grid[$key] = @{ Count = 1 Speed = $speed Hue = $p.Hue T = $t } } } } } # Render for ($row = 0; $row -lt $height; $row++) { $sb = [System.Text.StringBuilder]::new() for ($col = 0; $col -lt $width; $col++) { $key = "$col,$row" if ($grid.ContainsKey($key)) { $cell = $grid[$key] $avgHue = ($cell.Hue / $cell.Count + 0.5) % 1 $avgSpeed = $cell.Speed / $cell.Count $hue = ($avgHue + $cell.T * 0.2) % 1 $saturation = 0.65 + 0.3 * $avgSpeed $value = 0.3 + 0.65 * $avgSpeed $rgb = Convert-HsvToRgb -Hue $hue -Saturation $saturation -Value $value $symbol = if ($cell.Count -gt 6) { '◉' } elseif ($cell.Count -gt 3) { '●' } elseif ($cell.Count -gt 1) { '◦' } else { '·' } $null = $sb.Append("$esc[38;2;$($rgb[0]);$($rgb[1]);$($rgb[2])m$symbol") } else { $null = $sb.Append("$esc[38;2;8;8;12m ") } } Write-Host ($sb.ToString() + $reset) } Write-Host $reset |