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lua/arccw/client/cl_glint.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/
+--]]
+
+local rnd        = render
+local r_lightcol = rnd.GetLightColor
+
+local glintmat = Material("effects/blueflare1")
+
+local players
+local playerssaver = {}
+
+hook.Add("PostDrawEffects", "ArcCW_ScopeGlint", function()
+    if playerssaver != players then -- less calls on GetAll
+        players      = player.GetAll()
+        playerssaver = players
+    end
+
+    cam.Start3D()
+        for _, ply in ipairs(players) do
+            if !IsValid(ply) then continue end
+
+            if ply == LocalPlayer() and !ply:ShouldDrawLocalPlayer() then continue end
+
+            local wep = ply:GetActiveWeapon()
+
+            if !(IsValid(wep) and wep.ArcCW) then continue end
+
+            if !wep:GetBuff_Override("ScopeGlint") then continue end
+
+            if wep:GetState() != ArcCW.STATE_SIGHTS then continue end
+
+            local vec = (ply:EyePos() - EyePos()):GetNormalized()
+            local dot = vec:Dot(-ply:EyeAngles():Forward())
+
+            dot = (dot * dot * 1.75) - 0.75
+            dot = dot * (0.5 + (1 - wep:GetSightDelta()) * 0.5)
+
+            if dot < 0 then continue end
+
+            local pos = ply:EyePos() + (ply:EyeAngles():Forward() * 16) + (ply:EyeAngles():Right() * 8)
+
+            local _, scope_i = wep:GetBuff_Override("ScopeGlint")
+
+            if scope_i then
+                local world = (wep.Attachments[scope_i].WElement or {}).Model
+
+                if world and IsValid(world) then
+                    local att = world:LookupAttachment("holosight") or world:LookupAttachment("scope")
+
+                    if att then pos = world:GetAttachment(att).Pos end
+                end
+            end
+
+            local lcolpos = r_lightcol(pos):Length()
+            local lcoleye = r_lightcol(EyePos()):Length()
+
+            local mag       = wep:GetBuff_Mult("Mult_GlintMagnitude") or 1
+            local intensity = math.min(0.2 + (lcolpos + lcoleye) / 2 * 1, 1) * mag
+            local col       = 255 * intensity
+
+            rnd.SetMaterial(glintmat)
+            rnd.DrawSprite(pos, 96 * dot, 96 * dot, Color(col, col, col))
+        end
+    cam.End3D()
+end)