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math.QuadraticBezier#551369

<cat>libraryfunc</cat>⤶ <function name="QuadraticBezier" parent="math" type="libraryfunc">⤶ <description>Lerp point between 3 control points with quadratic bezier.⤶ <note>There is cubic function <page>math.CubicBezier</page> which works with 4 control points.</note>⤶ </description>⤶ <realm>Shared and Menu</realm>⤶ <added>2023.08.03</added>⤶ <file line="270-L276">lua/includes/extensions/math.lua</file>⤶ <args>⤶ <arg name="frac" type="number">The fraction for finding the result. This number is clamped between 0 and 1.</arg>⤶ <arg name="p0" type="Vector">First control point</arg>⤶ <arg name="p1" type="Vector">Tangent</arg>⤶ <arg name="p2" type="Vector">Second control point</arg>⤶ </args>⤶ <rets>⤶ <ret name="" type="Vector">Point between control points at the specified fraction</ret>⤶ </rets>⤶ </function>⤶ ⤶ <example>⤶ <description>Demonstrates the use of this function.</description>⤶ <code>⤶ local points = {⤶ Vector( 128, 128 ),⤶ Vector( 384, 128 ),⤶ Vector( 384, 384 )⤶ }⤶ ⤶ hook.Add( "HUDPaint", "math.QuadraticBezier", function()⤶ local frac = RealTime() % 1⤶ local point = math.QuadraticBezier( frac, unpack( points ) )⤶ ⤶ surface.SetDrawColor( 255, 255, 0 )⤶ surface.DrawRect( point.x - 4, point.y - 4, 8, 8 )⤶ ⤶ surface.DrawRect( points[1].x - 4, points[1].y - 4, 8, 8 )⤶ surface.DrawRect( points[2].x - 4, points[2].y - 4, 8, 8 )⤶ surface.DrawRect( points[3].x - 4, points[3].y - 4, 8, 8 )⤶ end )⤶ </code>⤶ <output>⤶ <image src="https://i.imgur.com/LiYCgAS.gif"/>⤶ </output>⤶ </example>⤶ ⤶

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