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lua/entities/widget_arrow.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+
+AddCSLuaFile()
+
+DEFINE_BASECLASS( "widget_base" )
+
+local matArrow = Material( "widgets/arrow.png", "nocull alphatest smooth mips" )
+local matScale = Material( "widgets/scale.png", "nocull alphatest smooth mips" )
+
+function ENT:SetupDataTables()
+
+	BaseClass.SetupDataTables( self )
+
+	self:NetworkVar( "Bool", 2, "IsScaleArrow" )
+
+	if ( SERVER ) then
+		self:SetIsScaleArrow( false )
+	end
+
+end
+--
+-- Set our dimensions etc
+--
+function ENT:Initialize()
+
+	BaseClass.Initialize( self )
+
+	if ( SERVER ) then
+		self:SetSize( 16 )
+	end
+
+end
+
+function ENT:PressedShouldDraw( widget ) return widget == self end
+
+function ENT:OverlayRender()
+
+	local fwd = self:GetAngles():Forward()
+	local size = self:GetSize() * 0.5
+
+	local c = self:GetColor()
+
+	if ( !self:IsHovered() && !self:IsPressed() ) then
+		c.r = c.r * 0.5
+		c.g = c.g * 0.5
+		c.b = c.b * 0.5
+	end
+
+	if ( self:GetIsScaleArrow() ) then
+		render.SetMaterial( matScale )
+	else
+		render.SetMaterial( matArrow )
+	end
+
+	render.DepthRange( 0, 0.01 )
+	render.DrawBeam( self:GetPos(), self:GetPos() + fwd * size, 2, 1, 0, Color( c.r, c.g, c.b, c.a * 0.1 ) )
+	render.DepthRange( 0, 1 * self:GetPriority() )
+	render.DrawBeam( self:GetPos(), self:GetPos() + fwd * size, 2, 1, 0, Color( c.r, c.g, c.b, c.a ) )
+	render.DepthRange( 0, 1 )
+
+end
+
+function ENT:TestCollision( startpos, delta, isbox, extents )
+
+	if ( isbox ) then return end
+	if ( !widgets.Tracing ) then return end
+
+	local size = self:GetSize() * 0.5
+
+	local mins = Vector( 0, -1, -1 )
+	local maxs = Vector( size, 1, 1 )
+
+	local hit, norm, fraction = util.IntersectRayWithOBB( startpos, delta, self:GetPos(), self:GetAngles(), mins, maxs )
+	if ( !hit ) then return end
+
+	--debugoverlay.BoxAngles( self:GetPos(), mins, maxs, self:GetAngles(), 0.1, Color( 0, 0, 255, 64 ) )
+
+	return {
+		HitPos		= hit,
+		Fraction	= fraction * self:GetPriority()
+	}
+
+end
+
+function ENT:DragThink( pl, mv, dist )
+
+	local d = dist.x * -1
+
+	self:ArrowDragged( pl, mv, d )
+
+end
+
+function ENT:ArrowDragged( pl, mv, dist )
+
+	-- MsgN( dist )
+
+end
+
+function ENT:GetGrabPos( Pos, Forward )
+
+	local fwd = Forward
+	local eye = Pos
+	local arrowdir = self:GetAngles():Forward()
+
+	local planepos = self:GetPos()
+	local planenrm = ( eye - planepos ):GetNormal()
+
+	local hitpos = util.IntersectRayWithPlane( eye, fwd, planepos, planenrm )
+	if ( !hitpos ) then return end
+
+	-- Get nearest point along the arrow where we touched it
+	local fdist, vpos, falong = util.DistanceToLine( planepos - arrowdir * 1024, planepos + arrowdir * 1024, hitpos )
+
+	return vpos
+
+end