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gamemodes/base/entities/effects/tooltracer.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/
+--]]
+
+
+EFFECT.Mat = Material( "effects/tool_tracer" )
+
+function EFFECT:Init( data )
+
+	self.Position = data:GetStart()
+	self.WeaponEnt = data:GetEntity()
+	self.Attachment = data:GetAttachment()
+
+	-- Keep the start and end pos - we're going to interpolate between them
+	self.StartPos = self:GetTracerShootPos( self.Position, self.WeaponEnt, self.Attachment )
+	self.EndPos = data:GetOrigin()
+
+	self.Alpha = 255
+	self.Life = 0
+
+	self:SetRenderBoundsWS( self.StartPos, self.EndPos )
+
+end
+
+function EFFECT:Think()
+
+	self.Life = self.Life + FrameTime() * 4
+	self.Alpha = 255 * ( 1 - self.Life )
+
+	return self.Life < 1
+
+end
+
+function EFFECT:Render()
+
+	if ( self.Alpha < 1 ) then return end
+
+	render.SetMaterial( self.Mat )
+	local texcoord = math.Rand( 0, 1 )
+
+	local norm = ( self.StartPos - self.EndPos ) * self.Life
+
+	self.Length = norm:Length()
+
+	for i = 1, 3 do
+
+		render.DrawBeam( self.StartPos - norm,		-- Start
+					self.EndPos,					-- End
+					8,								-- Width
+					texcoord,						-- Start tex coord
+					texcoord + self.Length / 128,	-- End tex coord
+					color_white )					-- Color (optional)
+	end
+
+	render.DrawBeam( self.StartPos,
+					self.EndPos,
+					8,
+					texcoord,
+					texcoord + ( ( self.StartPos - self.EndPos ):Length() / 128 ),
+					Color( 255, 255, 255, 128 * ( 1 - self.Life ) ) )
+
+end