let click dragging musicwheel outside of bounds be possible

also dont loop the bottom of the wheel when dragging

Themes/Til Death/Graphics/ScrollBar TickThumb.lua

@@ -2,6 +2,7 @@ local t = Def.ActorFrame {}
 local screname
 local whee
 local mdown = false -- mouse down mouse up
+local moving = false -- allow dragging while not over the required space
 local prev = 0 -- previous wheel index moved to to prevent holding the mouse down causing a lot of clicky noises
 t[#t + 1] = Def.ActorFrame {
 	BeginCommand = function(self)
@@ -13,12 +14,14 @@ t[#t + 1] = Def.ActorFrame {
 					self:SetUpdateFunction(function(self)
 						local mx = SCREEN_WIDTH - INPUTFILTER:GetMouseX()
 						local my = SCREEN_HEIGHT - INPUTFILTER:GetMouseY()
-						if mx < 32 and mx > 0 and my < 440 and my > 48 then
+						if moving or mx < 32 and mx > 0 and my < 440 and my > 48 then
+							moving = true
 							self:playcommand("ClickingMusicWheelScroller")
 						end
 					end)
 				else
 					mdown = false
+					moving = false
 					self:SetUpdateFunction(nil)
 				end
 			end
@@ -38,12 +41,15 @@ t[#t + 1] = Def.ActorFrame {
 			if whee then
 				local idx = whee:GetCurrentIndex()
 				local num = whee:GetNumItems()
-				local dum = (INPUTFILTER:GetMouseY() - 45) / (SCREEN_HEIGHT - 103)
+				local dum = math.min(math.max(0, INPUTFILTER:GetMouseY() - 45) / (SCREEN_HEIGHT - 103), 1)
 				local newmove = notShit.round(num * dum) - idx
 				if newmove ~= prev then
 					prev = notShit.round(num * dum) - idx
-					whee:Move(prev)
-					whee:Move(0)
+					-- prevent looping around at the bottom
+					if prev - num ~= idx and num - prev ~= idx then
+						whee:Move(prev)
+						whee:Move(0)
+					end
 				end
 			end
 		end