<function name="EaseInOut" parent="math" type="libraryfunc"> <description>Calculates the progress of a value fraction, taking in to account given easing fractions</description> <realm>Shared and Menu</realm> <file line="74-L99">lua/includes/extensions/math.lua</file> <args> <arg name="progress" type="number">Fraction of the progress to ease, from 0 to 1.</arg> <arg name="easeIn" type="number" default="0">Fraction of how much easing to begin with, from 0 to 1.</arg> <arg name="easeOut" type="number" default="1">Fraction of how much easing to end with, from 0 to 1.</arg> </args> <rets> <ret name="" type="number">"Eased" Value, from 0 to 1</ret> </rets> </function> <example> <description>Calculates the easing of three situations</description> <code> print(math.EaseInOut(0.1, 0.1, 0.1)) print(math.EaseInOut(0.2, 0.1, 0.1)) print(math.EaseInOut(0.3, 0.1, 0.1)) </code> <output> 0.055555... 0.166666... 0.277777... </output> ⤶ </example>⤶ ⤶ <example>⤶ <description>Interactive preview of the curve this function can generate.</description>⤶ <code>⤶ local f = vgui.Create( "DFrame" )⤶ f:SetSize( 500, 500 )⤶ f:Center()⤶ f:MakePopup()⤶ ⤶ local sliderIn = vgui.Create( "DNumSlider", f )⤶ sliderIn:Dock( TOP )⤶ sliderIn:SetMinMax( 0, 4 )⤶ sliderIn:SetText( "Ease In" )⤶ ⤶ local sliderOut = vgui.Create( "DNumSlider", f )⤶ sliderOut:Dock( TOP )⤶ sliderOut:SetMinMax( 0, 4 )⤶ sliderOut:SetText( "Ease Out" )⤶ ⤶ local sliderMax = vgui.Create( "DNumSlider", f )⤶ sliderMax:Dock( TOP )⤶ sliderMax:SetMinMax( 1, 2 )⤶ sliderMax:SetValue( 1 )⤶ sliderMax:SetText( "Value Range Max" )⤶ ⤶ local quality = 128⤶ ⤶ local oldPaint = f.Paint⤶ f.Paint = function( pnl, w, h )⤶ oldPaint( pnl, w, h )⤶ ⤶ surface.SetDrawColor( 255, 0, 0, 255 )⤶ local lastPos = { x = 0, y = 0 }⤶ for i=0, quality do⤶ local pos = { x = i / quality * pnl:GetWide(), y = math.EaseInOut( math.Remap( i / quality, 0, 1, 0, sliderMax:GetValue() ), sliderIn:GetValue(), sliderOut:GetValue() ) * pnl:GetTall() }⤶ surface.DrawLine( lastPos.x, lastPos.y, pos.x, pos.y )⤶ lastPos = pos⤶ end ⤶ ⤶ local frac = CurTime() % 1⤶ local easeVal = math.EaseInOut( math.Remap( frac, 0, 1, 0, sliderMax:GetValue() ), sliderIn:GetValue(), sliderOut:GetValue() )⤶ surface.DrawCircle( frac * pnl:GetWide(), easeVal * pnl:GetTall(), 4, 255, 255, 255 )⤶ ⤶ surface.SetDrawColor( 255, 255, 255, easeVal * 255 )⤶ surface.DrawRect( 10, pnl:GetTall() - 10 - 48, 48, 48 )⤶ end⤶ ⤶ </code>⤶ <output>⤶ <upload src="70c/8dcc90cd6ec7ec8.gif" size="25530" name="August30-494-hl2.gif" />⤶ </output>⤶ </example>