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lua/effects/arccw_tracer.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.StartPos = Vector(0, 0, 0)
+EFFECT.EndPos = Vector(0, 0, 0)
+EFFECT.StartTime = 0
+EFFECT.LifeTime = 0.2
+EFFECT.LifeTime2 = 0.2
+EFFECT.DieTime = 0
+EFFECT.Color = Color(255, 255, 255)
+EFFECT.Speed = 5000
+
+-- local head = Material("effects/whiteflare")
+local tracer = Material("effects/smoke_trail")
+local smoke = Material("trails/smoke")
+
+function EFFECT:Init(data)
+
+    local hit = data:GetOrigin()
+    local wep = data:GetEntity()
+
+    if !IsValid(wep) then return end
+
+    local speed = data:GetScale()
+    local start = (wep.GetTracerOrigin and wep:GetTracerOrigin()) or data:GetStart()
+
+    if ArcCW.ConVars["fasttracers"]:GetBool() then
+            local fx = EffectData()
+            fx:SetOrigin(hit)
+            fx:SetEntity(wep)
+            fx:SetStart(start)
+            fx:SetScale(4000)
+            util.Effect("tracer", fx)
+            self:Remove()
+        return
+    end
+
+    if speed > 0 then
+        self.Speed = speed
+    end
+
+    local profile = 0
+    if wep.GetBuff_Override then
+        profile = wep:GetBuff_Override("Override_PhysTracerProfile", wep.PhysTracerProfile) or 0
+        if isnumber(profile) then profile = ArcCW.BulletProfileDict[ArcCW.BulletProfiles[profile]] end
+    end
+
+    self.LifeTime = (hit - start):Length() / self.Speed
+
+    self.StartTime = UnPredictedCurTime()
+    self.DieTime = UnPredictedCurTime() + math.max(self.LifeTime, self.LifeTime2)
+
+    self.StartPos = start
+    self.EndPos = hit
+    self.Color = (ArcCW.BulletProfileDict[profile] or ArcCW.BulletProfileDict["default0"]).color
+end
+
+function EFFECT:Think()
+    return self.DieTime > UnPredictedCurTime()
+end
+
+local function LerpColor(d, col1, col2)
+    local r = Lerp(d, col1.r, col2.r)
+    local g = Lerp(d, col1.g, col2.g)
+    local b = Lerp(d, col1.b, col2.b)
+    local a = Lerp(d, col1.a, col2.a)
+    return Color(r, g, b, a)
+end
+
+function EFFECT:Render()
+    local d = (UnPredictedCurTime() - self.StartTime) / self.LifeTime
+    local d2 = (UnPredictedCurTime() - self.StartTime) / self.LifeTime2
+    local startpos = self.StartPos + (d * 0.1 * (self.EndPos - self.StartPos))
+    local endpos = self.StartPos + (d * (self.EndPos - self.StartPos))
+    local size = 1
+
+    local col = LerpColor(d, self.Color, Color(0, 0, 0, 0))
+    local col2 = LerpColor(d2, Color(255, 255, 255, 255), Color(0, 0, 0, 0))
+
+    -- render.SetMaterial(head)
+    -- render.DrawSprite(endpos, size * 3, size * 3, col)
+
+    render.SetMaterial(tracer)
+    render.DrawBeam(endpos, startpos, size, 0, 1, col)
+
+    render.SetMaterial(smoke)
+    render.DrawBeam(self.EndPos, self.StartPos, size * 0.5 * d2, 0, 1, col2)
+end