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gamemodes/sandbox/entities/effects/selection_ring.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/select_ring" )
+
+function EFFECT:Init( data )
+
+	local size = 8
+	self:SetCollisionBounds( Vector( -size, -size, -size ), Vector( size, size, size ) )
+
+	local Pos = data:GetOrigin() + data:GetNormal() * 2
+
+	self:SetPos( Pos )
+
+	-- This 0.01 is a hack.. to prevent the angle being weird and messing up when we change it back to a normal
+	self:SetAngles( data:GetNormal():Angle() + Angle( 0.01, 0.01, 0.01 ) )
+
+	self:SetParentPhysNum( data:GetAttachment() )
+
+	if ( IsValid( data:GetEntity() ) ) then
+		self:SetParent( data:GetEntity() )
+	end
+
+	self.Pos = data:GetOrigin()
+	self.Normal = data:GetNormal()
+
+	self.Speed = math.Rand( 0.5, 1.5 )
+	self.Size = 4
+	self.Alpha = 255
+
+	self.Life = 0.5
+
+end
+
+function EFFECT:Think()
+
+	self.Alpha = self.Alpha - FrameTime() * 255 * 5 * self.Speed
+	self.Size = self.Size + FrameTime() * 256 * self.Speed
+
+	if ( self.Alpha < 0 ) then return false end
+	return true
+
+end
+
+function EFFECT:Render()
+
+	if ( self.Alpha < 1 ) then return end
+
+	render.SetMaterial( self.Mat )
+
+	render.DrawQuadEasy( self:GetPos(), self:GetAngles():Forward(), self.Size, self.Size, Color( math.Rand( 10, 150 ), math.Rand( 170, 220 ), math.Rand( 240, 255 ), self.Alpha ) )
+
+end