Adding ColorLoop Effect (Fixes #113)

Author: James Brundage

Effects/ColorLoop.OBS.Effect.ps1

@@ -0,0 +1,37 @@
+<#
+.SYNOPSIS
+    Loops Colors
+.DESCRIPTION
+    Loops thru potential hue adjustment for an input.
+#>
+param(
+[string]
+$InputName,
+
+[timespan]
+$Duration = "00:00:02"
+)
+
+if (-not $InputName -and $this -and $this.InputName) {
+    $InputName = $this.InputName
+}
+
+if (-not $InputName -and $this -and $this.SourceName) {
+    $InputName = $this.SourceName
+}
+
+if (-not $InputName) { return }
+
+Add-OBSColorFilter -FilterName "ColorLoop" -SourceName $InputName -ErrorAction SilentlyContinue | Out-Null
+
+$StepCount = [Math]::Ceiling($Duration.TotalMilliseconds / ([timespan]::fromSeconds(1/30).TotalMilliseconds)) * 2
+
+$stepSleep  = $Duration.TotalMilliseconds / $StepCount
+
+$hue = 0
+$hueIncrement = 360 / $StepCount
+@(foreach ($stepNum in 1..$StepCount) {
+    $hue += $hueIncrement
+    Set-OBSColorFilter -FilterName "ColorLoop" -SourceName $InputName -Hue $hue  -PassThru
+    Send-OBSSleep -SleepMillis $stepSleep -PassThru
+})