Release Tempo Envelope - select env point under edit cursor (deselect others) v1.0

Envelopes/audiobabble_Tempo Envelope - select env point under edit cursor (deselect all others).lua

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+-- @description Tempo Envelope - select env point under edit cursor (deselect others)
+-- @author Audiobabble
+-- @version 1.0
+-- @about Selects the master track tempo envelope point currently under the cursor and deselects all other tempo envelope points, regardless of focus on other envelopes in the project
+
+tr = reaper.GetMasterTrack( 0 )
+env = reaper.GetTrackEnvelopeByName( tr, 'Tempo map' )
+curpos = reaper.GetCursorPosition()
+
+-- function for rounding to x decimal places
+function round(num, numDecimalPlaces)
+  local mult = 10^(numDecimalPlaces or 0)
+  return math.floor(num * mult + 0.5) / mult
+end
+
+
+-- Main Script
+for ptidx=1,reaper.CountTempoTimeSigMarkers( 0 ) do
+  -- get all envelope points in tempo map
+  _, timeIn, valueIn, shapeIn, tensionIn, _ = reaper.GetEnvelopePoint(env, ptidx)
+  if round(curpos, 2) == round(timeIn, 2) then
+    -- if at cursor then select
+    reaper.SetEnvelopePoint(env, ptidx, timeIn, valueIn, shapeIn, tensionIn, true)
+  else
+    -- if not at cursor, then deselect
+    reaper.SetEnvelopePoint(env, ptidx, timeIn, valueIn, shapeIn, tensionIn, false)
+  end
+end
+reaper.UpdateTimeline()
+