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gamemodes/ixhl2rp/plugins/bettergas/cl_hooks.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 math = math
+local L = L
+local string = string
+local timer = timer
+local LocalPlayer = LocalPlayer
+local CreateSound = CreateSound
+local surface = surface
+local ScrW, ScrH = ScrW, ScrH
+local Color = Color
+local ix = ix
+
+local PLUGIN = PLUGIN
+
+function PLUGIN:AdjustGasPoints(points)
+    if (!points) then return 0 end
+
+    if (points >= self.LETHAL_GAS) then return 1, true end
+    if (points <= 0) then return 0 end
+
+    local fl, cl = math.floor(points), math.ceil(points)
+    local divideBy = points >= 60 and PLUGIN.LETHAL_GAS or 61
+    if (fl == cl) then
+        return PLUGIN.gasToCooldown[fl] / PLUGIN.gasToCooldown[divideBy], points >= 60
+    else
+        return math.Remap(points, fl, cl, PLUGIN.gasToCooldown[fl], PLUGIN.gasToCooldown[cl]) / PLUGIN.gasToCooldown[divideBy], points >= 60
+    end
+end
+
+local gasMaterial = ix.util.GetMaterial("willardnetworks/nlrbleedout/gas-background.png")
+function PLUGIN:DrawHUDOverlays(client, character)
+    local gasPoints = math.min(character:GetGasPoints() / self.LETHAL_GAS, 1)
+    if (gasPoints > 0.2) then
+        surface.SetDrawColor(Color(255, 255, 255, math.Remap(gasPoints, 0.2, 1, 0, 255)))
+        surface.SetMaterial(gasMaterial)
+        surface.DrawTexturedRect(0, 0, ScrW(), ScrH())
+    end
+end
+
+local gasIcon = ix.util.GetMaterial("willardnetworks/hud/toxic.png")
+function PLUGIN:DrawBars(client, character, alwaysShow, minimalShow, DrawBar)
+    local faction = ix.faction.Get(client:Team())
+    if (!faction or faction.noGas) then return end
+
+    local gasPoints, secondary =  self:AdjustGasPoints(character:GetGasPoints())
+    if (alwaysShow or gasPoints > 0 and !(secondary and gasPoints == 1)) then
+        if (alwaysShow or !minimalShow or (gasPoints > 0.5 and !secondary)) then
+            if (!secondary) then
+                DrawBar(gasIcon, gasPoints)
+            else
+                DrawBar(gasIcon, 1, nil, gasPoints)
+            end
+        end
+    end
+end
+
+function PLUGIN:DrawAlertBars(client, character, DrawBar)
+    local faction = ix.faction.Get(client:Team())
+    if (!faction or faction.noGas) then return end
+
+    local gasPoints, secondary =  self:AdjustGasPoints(character:GetGasPoints())
+    if (secondary) then
+        DrawBar(L(gasPoints >= 1 and "gasLethal" or "gasHigh"))
+    end
+end
+
+function PLUGIN:GetPlayerESPText(client, toDraw, distance, alphaFar, alphaMid, alphaClose)
+    local character = client:GetCharacter()
+    local gasPoints = character:GetGasPoints()
+    if (gasPoints >= self.LETHAL_GAS) then
+        toDraw[#toDraw + 1] = {alpha = alphaMid, priority = 16, text = string.format("Gas: LETHAL (%dm left)", math.ceil(180 - gasPoints))}
+    elseif (gasPoints > 0) then
+		toDraw[#toDraw + 1] = {alpha = alphaClose, priority = 24, text = "Gas: "..math.Round(character:GetGasPoints(), 1)}
+	end
+end
+
+local heartbeatSound
+local breathingSound
+local breathingPlaying = false
+function PLUGIN:InitPostEntity()
+    timer.Create("ixBetterGasHeartbeat", 5, 0, function()
+        local client = LocalPlayer()
+        local faction = ix.faction.Get(client:Team())
+        if (faction and faction.noGas) then return end
+
+        local timerDelay = 60
+        local playedHeartbeatSound = false
+
+		if (client:Alive() and client:GetCharacter()) then
+			local gasPointFraction = math.min(client:GetCharacter():GetGasPoints() / self.LETHAL_GAS, 1)
+			if (gasPointFraction > 0.5) then
+				if (!heartbeatSound) then
+					heartbeatSound = CreateSound(client, "player/heartbeat1.wav")
+				end
+
+                timerDelay = 0.75 + math.Remap(gasPointFraction, 0.5, 1, 1.25, 0)
+                heartbeatSound:PlayEx(math.Remap(gasPointFraction, 0.5, 1, 0.05, 0.75), 100)
+				playedHeartbeatSound = true
+			end
+		end
+
+        if (!playedHeartbeatSound and heartbeatSound) then
+			heartbeatSound:Stop()
+		end
+
+        timer.Adjust("ixBetterGasHeartbeat", timerDelay)
+    end)
+
+    timer.Create("ixBetterGasBreathing", 5, 0, function()
+        local client = LocalPlayer()
+        local faction = ix.faction.Get(client:Team())
+        if (faction and faction.noGas) then return end
+
+        if (breathingPlaying) then
+            breathingSound:Stop()
+            timer.Adjust("ixBetterGasBreathing", 5)
+        end
+
+        if (client:Alive() and client:GetCharacter()) then
+            local gasPointFraction = math.min(client:GetCharacter():GetGasPoints() / 100, 1)
+            if (gasPointFraction > 0.3) then
+                if (!breathingSound) then
+                    breathingSound = CreateSound(client, "player/breathe1.wav")
+                end
+
+                local clamped = math.Clamp(gasPointFraction, 0.3, 1)
+                if (!breathingPlaying and math.Remap(clamped, 0.3, 1, 0, 1) >= math.random()) then
+                    local delay = math.Remap(clamped, 0.3, 1, 60, 20)
+                    local duration = math.Remap(clamped, 0.3, 1, 3, 20)
+                    breathingSound:PlayEx(math.Remap(clamped, 0.3, 1, 0.05, 0.75), 100)
+                    breathingPlaying = true
+                    if (duration < delay) then
+                        timer.Simple(duration, function()
+                            breathingSound:Stop()
+                            breathingPlaying = false
+                        end)
+                    end
+
+                    timer.Adjust("ixBetterGasBreathing", delay)
+                    return
+                end
+
+                timer.Adjust("ixBetterGasBreathing", 5)
+            else
+                timer.Adjust("ixBetterGasBreathing", 60)
+            end
+        end
+    end)
+end
+
+PLUGIN.OnReloaded = PLUGIN.InitPostEntity

gamemodes/ixhl2rp/plugins/bettergas/items/base/sh_filter.lua

@@ -0,0 +1,242 @@
+--[[
+| 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 surface = surface
+local derma = derma
+local math = math
+local IsValid = IsValid
+local hook = hook
+local table = table
+
+ITEM.name = "Filter Base"
+ITEM.model = Model("models/props_junk/TrafficCone001a.mdl")
+ITEM.description = "A generic filter against smelly things and bad stuff in the air."
+
+ITEM.filterQuality = 0.5 -- percentage protection
+ITEM.maxFilterValue = 60 -- max duration in minutes
+ITEM.refillItem = nil
+ITEM.filterDecayStart = 0.1 -- percentage of filter value remaining where quality starts to drop linearly to 0
+
+if (CLIENT) then
+	function ITEM:PaintOver(item, w, h)
+		if (item:GetData("equip")) then
+			surface.SetDrawColor(110, 255, 110, 100)
+			surface.DrawOutlinedRect(1, 1, w - 2, h - 2)
+		end
+	end
+
+	function ITEM:PopulateTooltip(tooltip)
+		if (self:GetData("equip")) then
+			local name = tooltip:GetRow("name")
+			name:SetBackgroundColor(derma.GetColor("Success", tooltip))
+		end
+
+		local panel = tooltip:AddRowAfter("name", "integrity")
+		panel:SetBackgroundColor(derma.GetColor("Warning", tooltip))
+		panel:SetText("Integrity: "..math.Round(self:GetFilterValue() * 100 / self.maxFilterValue, 1).."%\n"..
+						"Quality: "..math.Round(self:GetFilterQuality() * 100, 1).."%")
+		panel:SizeToContents()
+	end
+end
+
+function ITEM:GetFilterValue()
+	return self:GetData("filterValue", self.maxFilterValue)
+end
+
+function ITEM:GetFilterQuality()
+    if (self:GetFilterValue() > self.maxFilterValue * self.filterDecayStart) then
+        return self.filterQuality
+    else
+        return math.Remap(self:GetFilterValue(), 0, self.maxFilterValue * self.filterDecayStart, 0, self.filterQuality)
+    end
+end
+
+function ITEM:RemoveFilter(client)
+	self:SetData("equip", false)
+
+    local character = client:GetCharacter()
+    if (character:GetFilterItem() == self:GetID()) then
+        character:SetFilterItem(0)
+    end
+end
+
+ITEM:Hook("drop", function(item)
+	if (item:GetData("equip")) then
+		item:RemoveFilter(item:GetOwner())
+	end
+end)
+
+ITEM.functions.Refill = {
+	name = "Refill",
+	tip = "repairTip",
+	icon = "icon16/wrench.png",
+	OnRun = function(item)
+		item:Refill(item.player)
+		return false
+	end,
+	OnCanRun = function(item)
+		local client = item.player
+		return item.refillItem != nil and item:GetData("equip") == false and
+            !IsValid(item.entity) and IsValid(client) and
+            item:GetFilterValue() < item.maxFilterValue and
+            client:GetCharacter():GetInventory():HasItem(item.refillItem)
+	end
+}
+
+function ITEM:Refill(client, amount)
+	amount = amount or self.maxFilterValue
+	local refillItem = client:GetCharacter():GetInventory():HasItem(self.refillItem)
+
+	if (refillItem) then
+		refillItem:Remove()
+		self:SetData("filterValue", math.Clamp(self:GetFilterValue() + amount, 0, self.maxFilterValue))
+	end
+end
+
+ITEM.functions.EquipUn = { -- sorry, for name order.
+	name = "Unequip",
+	tip = "unequipTip",
+	icon = "icon16/cross.png",
+	OnRun = function(item)
+		if (item.player) then
+			item:RemoveFilter(item.player)
+		else
+			item:SetData("equip", false)
+		end
+		return false
+	end,
+	OnCanRun = function(item)
+		local client = item.player
+
+		return !IsValid(item.entity) and IsValid(client) and item:GetData("equip") == true and
+			hook.Run("CanPlayerUnequipItem", client, item) != false
+	end
+}
+
+ITEM.functions.Replace = {
+	name = "Replace",
+	tip = "equipTip",
+	icon = "icon16/tick.png",
+	OnRun = function(item)
+		local client = item.player
+		local character = client:GetCharacter()
+
+        local oldFilter = client:GetFilterItem()
+        oldFilter:RemoveFilter(client)
+
+		item:SetData("equip", true)
+        character:SetFilterItem(item:GetID())
+
+		return false
+	end,
+	OnCanRun = function(item)
+		local client = item.player
+		if item.factionList and !table.HasValue(item.factionList, client:GetCharacter():GetFaction()) then
+			return false
+		end
+
+		return !IsValid(item.entity) and IsValid(client) and item:GetData("equip") != true and
+			hook.Run("CanPlayerEquipItem", client, item) != false and item:CanReplaceFilter()
+	end
+}
+
+function ITEM:CanReplaceFilter()
+    local filterItem = self.player:GetFilterItem()
+	if (!filterItem or filterItem == self) then
+        return false
+    end
+
+    if (!filterItem.RemoveFilter or filterItem.noReplace) then
+        return false
+    end
+
+	if (!self.player:HasGasmask()) then
+		return false
+	end
+
+	return true
+end
+
+ITEM.functions.Equip = {
+	name = "Equip",
+	tip = "equipTip",
+	icon = "icon16/tick.png",
+	OnRun = function(item)
+		local client = item.player
+		local character = client:GetCharacter()
+
+		item:SetData("equip", true)
+        character:SetFilterItem(item:GetID())
+
+		return false
+	end,
+	OnCanRun = function(item)
+		local client = item.player
+		if item.factionList and !table.HasValue(item.factionList, client:GetCharacter():GetFaction()) then
+			return false
+		end
+
+		return !IsValid(item.entity) and IsValid(client) and item:GetData("equip") != true and
+			hook.Run("CanPlayerEquipItem", client, item) != false and item:CanEquipFilter()
+	end
+}
+
+function ITEM:CanEquipFilter()
+	if (self.player:GetFilterItem() != nil) then
+        return false
+    end
+
+	if (!self.player:HasGasmask()) then
+		return false
+	end
+
+	return true
+end
+
+function ITEM:CanTransfer(oldInventory, newInventory)
+	if (newInventory and self:GetData("equip")) then
+		return false
+	end
+
+	return true
+end
+
+function ITEM:OnInstanced()
+	self:SetData("filterValue", self.maxFilterValue)
+end
+
+function ITEM:OnRemoved()
+	if (self.invID != 0 and self:GetData("equip")) then
+		self.player = self:GetOwner()
+		self:RemoveFilter(self.player)
+
+		if self.OnUnEquip then
+			self:OnUnEquip()
+		end
+
+		self.player = nil
+	end
+end
+
+function ITEM:OnLoadout()
+	if (self:GetData("equip")) then
+        if (!self.player:HasGasmask()) then
+            self:SetData("equip", false)
+            return
+        end
+
+        local character = self.player:GetCharacter()
+        if (character:GetFilterItem() != 0 and character:GetFilterItem() != self:GetID()) then
+            self:SetData("equip", false)
+        else
+            character:SetFilterItem(self:GetID())
+        end
+	end
+end

gamemodes/ixhl2rp/plugins/bettergas/items/filter/sh_combine_filter.lua

@@ -0,0 +1,19 @@
+--[[
+| 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/
+--]]
+
+
+ITEM.name = "Combine Filter"
+ITEM.description = "A filter made by the Combine. It offers very good protection and doesn't decay, but doesn't last very long either. It cannot be refilled."
+ITEM.model = Model("models/willardnetworks/props/cpfilter.mdl")
+ITEM.category = "Combine"
+ITEM.filterQuality = 0.95
+ITEM.maxFilterValue = 40
+ITEM.filterDecayStart = 0.1
+ITEM.noUseOutGas = true

gamemodes/ixhl2rp/plugins/bettergas/items/filter/sh_highquality_filter.lua

@@ -0,0 +1,18 @@
+--[[
+| 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/
+--]]
+
+
+ITEM.name = "High-Quality Filter"
+ITEM.description = "A high quality filter, made with extreme care and precision to provide much better protection. Cannot be refilled."
+ITEM.model = Model("models/willardnetworks/props/blackfilter.mdl")
+
+ITEM.filterQuality = 0.9
+ITEM.maxFilterValue = 200
+ITEM.filterDecayStart = 0.05

gamemodes/ixhl2rp/plugins/bettergas/items/filter/sh_makeshift_filter.lua

@@ -0,0 +1,19 @@
+--[[
+| 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/
+--]]
+
+
+ITEM.name = "Makeshift Filter"
+ITEM.description = "A homemade filter, which does a decent job at keeping you from breathing anything harmful. It doesn't last very long."
+ITEM.model = Model("models/willardnetworks/props/sovietfilter.mdl")
+
+ITEM.filterQuality = 0.7
+ITEM.maxFilterValue = 120
+ITEM.refillItem = "comp_charcoal_refill"
+ITEM.filterDecayStart = 0.2

gamemodes/ixhl2rp/plugins/bettergas/meta/sh_player.lua

@@ -0,0 +1,76 @@
+--[[
+| 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 pairs = pairs
+local math = math
+local ix = ix
+
+local playerMeta = FindMetaTable("Player")
+
+function playerMeta:HasGasmask()
+    local character = self:GetCharacter()
+    if (!character) then return false end
+
+    local inventory = character:GetInventory()
+    if (!inventory) then return false end
+
+    local clothingItems = inventory:GetItems(true)
+    for _, v in pairs(clothingItems) do
+        if (v.isGasmask and v:GetData("equip")) then
+            return true
+        end
+    end
+end
+
+function playerMeta:GetFilterItem()
+    if (!self:HasGasmask()) then return nil end
+
+    local itemID = self:GetCharacter():GetFilterItem()
+    if (ix.item.instances[itemID]) then
+        return ix.item.instances[itemID]
+    end
+end
+
+function playerMeta:GetFilterQuality()
+    local filter = self:GetFilterItem()
+
+    if (!filter) then return 0 end
+
+    if (filter.GetFilterQuality) then
+        return filter:GetFilterQuality()
+    else
+        return filter.filterQuality or 0.1
+    end
+end
+
+function playerMeta:GetFilterValue()
+    local filter = self:GetFilterItem()
+
+    if (!filter) then return 0 end
+
+    return filter:GetData("filterValue", filter.maxFilterValue)
+end
+
+function playerMeta:UpdateFilterValue(amount)
+    local filter = self:GetFilterItem()
+    if (!filter) then return end
+
+    local oldValue = filter:GetData("filterValue", filter.maxFilterValue)
+    filter:SetData("filterValue", math.Clamp(oldValue - amount, 0, filter.maxFilterValue))
+
+    if (ix.option.Get(self, "gasNotificationWarnings") and
+        oldValue >= filter.filterDecayStart * filter.maxFilterValue) then
+        if (filter:GetData("filterValue") == 0) then
+            self:NotifyLocalized("filterOut")
+        elseif (filter:GetData("filterValue") < filter.filterDecayStart * filter.maxFilterValue) then
+            self:NotifyLocalized("filterDecay")
+        end
+    end
+end

gamemodes/ixhl2rp/plugins/bettergas/sh_hooks.lua

@@ -0,0 +1,27 @@
+--[[
+| 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 ix = ix
+
+function PLUGIN:CanPlayerEquipItem(client, item)
+	if (item.isGasmask and client:HasGasmask()) then
+		return false
+	end
+end
+
+function PLUGIN:CanPlayerUnequipItem(client, item)
+	if (item.isGasmask and client:GetFilterItem() != nil and client:GetFilterItem() != item) then
+		return false
+	end
+end
+
+function PLUGIN:SetupAreaProperties()
+	ix.area.AddType("gas")
+end

gamemodes/ixhl2rp/plugins/bettergas/sh_plugin.lua

@@ -0,0 +1,173 @@
+--[[
+| 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 CAMI = CAMI
+local math = math
+local ix = ix
+
+local PLUGIN = PLUGIN
+
+PLUGIN.name = "Better Gas"
+PLUGIN.author = "Gr4Ss"
+PLUGIN.description = "An improved gas zone system, aiming to facilitate roleplay both in and out of gas zones."
+
+PLUGIN.TIMER_INTERVAL = 10
+PLUGIN.LETHAL_GAS = 120
+PLUGIN.GAS_DEATH = 180
+PLUGIN.GAS_COOLDOWN_DELAY = 30
+PLUGIN.GAS_DECREASE_DELAY = 2
+
+ix.config.Add("gasPermakill", false, "Whether or not permakill from gas is activated.", nil, {
+	category = "Permakill"
+})
+ix.config.Add("gasPointGainScale", 1, "How much extra gas all characters gain while inside a gas area. This does not impact filters. 1 => 1 minute = 1 gas point, 2 => 1 minute = 2 gas points, 0.5 => 1 minute = 0.5 gas points", nil, {
+	data = {min = 0, max = 5, decimals = 2},
+	category = "Areas"
+})
+ix.config.Add("gasPointRecoveryPenalty", 1, "How longer all characters must recover from gas. 1 = same speed, 2 = twice as slow, 0.5 = twice as long", nil, {
+	data = {min = 0, max = 5, decimals = 2},
+	category = "Areas"
+})
+
+ix.config.Add("gasPointInjuryScale", 1, "How much extra gas injured characters gain while inside a gas area. Effect is applied progressively. Stated number is the 'goal' at 1hp. 1 = same speed as 100hp, 2 = twice as fast, 0.5 = half as long", nil, {
+	data = {min = 0, max = 5, decimals = 2},
+	category = "Areas"
+})
+
+ix.config.Add("gasPointInjuryRecoveryPenalty", 1, "How longer injured characters must recover from gas. Effect is applied progressively. Stated number is the 'goal' at 1hp. 1 = same speed as 100hp, 2 = twice as slow, 0.5 = twice as long", nil, {
+	data = {min = 0, max = 5, decimals = 2},
+	category = "Areas"
+})
+ix.config.Add("gasReverseZones", false, "Make the gas active everywhere on the map, except within gas areas.", nil, {
+	category = "Areas"
+})
+
+ix.lang.AddTable("english", {
+	gasDeathNotif = "%s został zabity przez gaz.",
+	gasLethal = "ŚMIERTELNY POZIOM ZATRUCIA",
+	gasHigh = "WYSOKI POZIOM ZATRUCIA",
+	optGasNotificationWarnings = "Ostrzeżenia o zagrożeniach gazowych",
+	optdGasNotificationWarnings = "Otrzymuj powiadomienia ostrzegawcze o wejściu w gaz i osiągnięciu wysokiego poziomu gazu.",
+	gasCDStart = "Przebywałeś poza kanałami wystarczająco długo, aby poziom zatrucia powoli spadał, gdy byłeś offline lub na innej postaci.",
+	gasEntered = "Powietrze ma tu nieprzyjemny zapach, od którego robi się niedobrze. Lepiej nie przebywać tu zbyt długo.",
+	gasHighNotif = "Powietrze zaczyna być coraz cięższe, a ciało zaczyna dziwnie mrowić. Jak długo to jeszcze wytrzymasz?",
+	gasNearLethalNotif = "Oddychanie staje się trudne, czujesz się zdezorientowany i bardzo zmęczony. Odejdź, póki jeszcze możesz, śmierć jest tuż za rogiem.",
+	gasLethalNotif = "Gdy każdy krok staje się wyzwaniem, gdzieś w głębi duszy możesz to poczuć: zostałeś zbyt długo i popchnąłeś swoje ciało zbyt daleko. Nie ma już powrotu, czeka Cię tylko śmierć.",
+	gasLethalNotifOOC = "Uwaga OOC: osiągnąłeś śmiertelną dawkę zatrucia. Nie ma na to lekarstwa. Masz trochę czasu, aby odegrać śmierć swojej postaci, wchodząc w szok septyczny.",
+	filterOut = "Filtr się wyczerpał.",
+	filterDecay = "Twój filtr zaczyna się zużywać, wkrótce przestanie Cię chronić."
+})
+
+ix.lang.AddTable("spanish", {
+	gasLethal = "NIVELES DE VENENO LETAL",
+	optdGasNotificationWarnings = "Obtenga notificaciones de advertencia cuando entre gas y cuando alcance niveles altos de gas.",
+	optGasNotificationWarnings = "Avisos de peligro gas",
+	gasDeathNotif = "%s fue asesinado por el gas.",
+	gasHigh = "ALTOS NIVELES DE VENENO",
+	gasLethalNotifOOC = "Nota OOC: has alcanzado cantidades letales de veneno. No hay cura o arreglo para ello. Se te permite un tiempo para rolear la muerte de tu personaje mientras entras en shock séptico.",
+	gasCDStart = "Has estado fuera de las alcantarillas el tiempo suficiente para que tus niveles de veneno sigan disminuyendo lentamente mientras estás desconectado o con otro personaje.",
+	gasLethalNotif = "A medida que cada paso se convierte en un desafío, en algún lugar de tu interior puedes sentirlo: Te has quedado mucho tiempo y has forzado tu cuerpo demasiado lejos. Ya no hay vuelta atrás, sólo te espera la muerte.",
+	gasNearLethalNotif = "Respiras con dificultad, te sientes confuso y estás muy cansado. Vete mientras puedas, la muerte está a la vuelta de la esquina.",
+	gasEntered = "El aire huele mal aquí, te pone enfermo. Es mejor no quedarse mucho tiempo.",
+	gasHighNotif = "El aire empieza a pesarte y tu cuerpo siente un extraño cosquilleo. ¿Cuánto tiempo más podrás seguir así?",
+	filterOut = "Tu filtro se ha agotado.",
+	filterDecay = "Tu filtro está empezando a deteriorarse, se agotará pronto."
+})
+
+ix.lang.AddTable("polish", {
+	gasDeathNotif = "%s został zabity przez gaz.",
+	gasLethal = "ŚMIERTELNY POZIOM ZATRUCIA",
+	gasHigh = "WYSOKI POZIOM ZATRUCIA",
+	optGasNotificationWarnings = "Ostrzeżenia o zagrożeniach gazowych",
+	optdGasNotificationWarnings = "Otrzymuj powiadomienia ostrzegawcze o wejściu w gaz i osiągnięciu wysokiego poziomu gazu.",
+	gasCDStart = "Przebywałeś poza kanałami wystarczająco długo, aby poziom zatrucia powoli spadał, gdy byłeś offline lub na innej postaci.",
+	gasEntered = "Powietrze ma tu nieprzyjemny zapach, od którego robi się niedobrze. Lepiej nie przebywać tu zbyt długo.",
+	gasHighNotif = "Powietrze zaczyna być coraz cięższe, a ciało zaczyna dziwnie mrowić. Jak długo to jeszcze wytrzymasz?",
+	gasNearLethalNotif = "Oddychanie staje się trudne, czujesz się zdezorientowany i bardzo zmęczony. Odejdź, póki jeszcze możesz, śmierć jest tuż za rogiem.",
+	gasLethalNotif = "Gdy każdy krok staje się wyzwaniem, gdzieś w głębi duszy możesz to poczuć: zostałeś zbyt długo i popchnąłeś swoje ciało zbyt daleko. Nie ma już powrotu, czeka Cię tylko śmierć.",
+	gasLethalNotifOOC = "Uwaga OOC: osiągnąłeś śmiertelną dawkę zatrucia. Nie ma na to lekarstwa. Masz trochę czasu, aby odegrać śmierć swojej postaci, wchodząc w szok septyczny.",
+	filterOut = "Filtr się wyczerpał.",
+	filterDecay = "Twój filtr zaczyna się zużywać, wkrótce przestanie Cię chronić."
+})
+
+ix.option.Add("gasNotificationWarnings", ix.type.bool, true, {
+	bNetworked = true,
+	category = "notice"
+})
+
+
+CAMI.RegisterPrivilege({
+	Name = "Helix - Manage Gas",
+	MinAccess = "admin"
+})
+
+do
+	local a, b, c = 50, 1.04, 49
+	local gasToCooldown = {b}
+	PLUGIN.gasToCooldown = gasToCooldown
+
+	for i = 2, PLUGIN.LETHAL_GAS do
+		gasToCooldown[i] = gasToCooldown[i - 1] * b
+		gasToCooldown[i - 1] = (gasToCooldown[i - 1] * a) - c
+	end
+	gasToCooldown[0] = a - c
+	gasToCooldown[PLUGIN.LETHAL_GAS] = (gasToCooldown[PLUGIN.LETHAL_GAS] * a) - c
+end
+
+ix.util.Include("meta/sh_player.lua")
+ix.util.Include("cl_hooks.lua")
+ix.util.Include("sh_hooks.lua")
+ix.util.Include("sv_hooks.lua")
+ix.util.Include("sv_plugin.lua")
+
+-- Accumalated gas points
+ix.char.RegisterVar("gasPoints", {
+	field = "gas_points",
+	fieldType = ix.type.number,
+	default = 0,
+	bNoDisplay = true,
+})
+
+-- Detection for when the player left a gas area
+ix.char.RegisterVar("gasCooldownPoints", {
+	field = "gas_cd_points",
+	fieldType = ix.type.number,
+	default = 0,
+	bNoDisplay = true,
+    bNoNetworking = true
+})
+
+-- Time when player left character with enough points for gas cooldown
+ix.char.RegisterVar("gasCooldownStart", {
+	field = "gas_cd_start",
+	fieldType = ix.type.number,
+	default = 0,
+	bNoDisplay = true,
+    bNoNetworking = true
+})
+
+ix.char.RegisterVar("filterItem", {
+	default = 0,
+	bNoDisplay = true,
+	isLocal = true,
+})
+
+ix.command.Add("CharSetGasPoints", {
+	description = "Set character's gas points (1 point = 1 minute in gas; more than "..PLUGIN.LETHAL_GAS.." = lethal; between 0 and "..PLUGIN.GAS_DEATH..")",
+	arguments = {
+		ix.type.character,
+		ix.type.number
+	},
+	privilege = "Manage Gas",
+	OnRun = function(self, client, character, amount)
+		character:SetGasPoints(math.Clamp(amount, 0, PLUGIN.GAS_DEATH))
+		client:Notify(character:GetName().."'s gas points were set to "..math.Clamp(amount, 0, PLUGIN.GAS_DEATH))
+	end
+})

gamemodes/ixhl2rp/plugins/bettergas/sv_hooks.lua

@@ -0,0 +1,61 @@
+--[[
+| 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 timer = timer
+local math = math
+local os = os
+local IsValid = IsValid
+local ix = ix
+
+local PLUGIN = PLUGIN
+
+function PLUGIN:PlayerLoadedCharacter(client, character)
+    local uniqueID = "ixGas" .. client:SteamID64()
+    timer.Create(uniqueID, self.TIMER_INTERVAL, 0, function()
+        if (IsValid(client)) then
+            if (ix.faction.Get(client:Team()).noGas) then return end
+
+            PLUGIN:GasZoneTick(client)
+        else
+            timer.Remove(uniqueID)
+        end
+    end)
+
+    if (character:GetGasCooldownPoints() >= self.GAS_COOLDOWN_DELAY) then
+        local time = math.floor((os.time() - character:GetGasCooldownStart()) / 60)
+        if (time > 0) then
+            character:SetGasPoints(self:deductTime(client, character:GetGasPoints(), time / 2))
+        end
+    end
+end
+
+function PLUGIN:OnPlayerAreaChanged(client, oldID, newID)
+    if (ix.area.stored[newID].type == "gas") then
+        if (client:GetMoveType() == MOVETYPE_NOCLIP and !client:InVehicle()) then return end
+        if (ix.faction.Get(client:Team()).noGas) then return end
+
+        client:GetCharacter():SetGasCooldownPoints(0)
+
+        if (oldID and ix.area.stored[oldID] and ix.area.stored[oldID].type != "gas" and ix.option.Get(client, "gasNotificationWarnings")) then
+            client:ChatNotifyLocalized("gasEntered")
+        end
+    end
+end
+
+function PLUGIN:PlayerSpawn(client)
+    local character = client:GetCharacter()
+	if (!character) then return end
+	if (ix.config.Get("gasPermakill") and character:GetData("gasPermakill")) then
+        character:SetData("gasPermakill", nil)
+		character:Ban()
+	else
+		character:SetData("gasPermakill", nil)
+	end
+end

gamemodes/ixhl2rp/plugins/bettergas/sv_plugin.lua

@@ -0,0 +1,171 @@
+--[[
+| 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 string = string
+local CurTime = CurTime
+local ipairs = ipairs
+local player = player
+local os = os
+local math = math
+local ix = ix
+
+local PLUGIN = PLUGIN
+
+ix.log.AddType("gasDeath", function(client, permakill)
+    return string.format("%s has died from lethal poison levels%s.", client:Name(), (permakill and " and will be permakilled") or "")
+end, FLAG_DANGER)
+
+function PLUGIN:deductTime(client, points, time)
+    if (points >= self.LETHAL_GAS) then
+        return points
+    end
+
+    if (points <= 0 or ix.config.Get("gasPointRecoveryPenalty") <= 0 or ix.config.Get("gasPointInjuryRecoveryPenalty") <= 0) then
+        return 0
+    end
+
+    local fl, cl = math.floor(points), math.ceil(points)
+    local y
+    if (fl == cl) then
+        y = self.gasToCooldown[fl]
+    else
+        y = math.Remap(points, fl, cl, self.gasToCooldown[fl], self.gasToCooldown[cl])
+    end
+
+    y = y - time / (ix.config.Get("gasPointRecoveryPenalty") * math.Remap(math.Clamp(client:Health() / client:GetMaxHealth(), 0, 1), 1, 0, 1, ix.config.Get("gasPointInjuryRecoveryPenalty")))
+
+    for i = cl, 1, -1 do
+        if (self.gasToCooldown[i - 1] <= y and y <= self.gasToCooldown[i]) then
+            return math.Remap(y, self.gasToCooldown[i - 1], self.gasToCooldown[i], i - 1, i)
+        end
+    end
+
+    return 0
+end
+
+function PLUGIN:GasZoneTick(client)
+    if (!client:Alive()) then return end
+
+    local character = client:GetCharacter()
+    if (!character) then return end
+
+    if (client:GetMoveType() == MOVETYPE_NOCLIP and !client:InVehicle()) then
+        if (character:GetGasCooldownPoints() <= 0) then return end
+
+        local gasPointLoss = self.TIMER_INTERVAL / 60
+        if (character:GetGasPoints() > 0) then
+            local cdPoints = character:GetGasCooldownPoints()
+            if (cdPoints < self.GAS_COOLDOWN_DELAY) then
+                cdPoints = cdPoints + self.TIMER_INTERVAL / 60
+                character:SetGasCooldownPoints(math.min(cdPoints, self.GAS_COOLDOWN_DELAY))
+                if (cdPoints == self.GAS_COOLDOWN_DELAY and ix.option.Get(client, "gasNotificationWarnings")) then
+                    client:ChatNotifyLocalized("gasCDStart")
+                end
+            end
+
+            if (cdPoints == self.GAS_COOLDOWN_DELAY) then
+                character:SetGasCooldownStart(os.time())
+            end
+
+            if (cdPoints >= self.GAS_DECREASE_DELAY) then
+                character:SetGasPoints(self:deductTime(client, character:GetGasPoints(), gasPointLoss / 2))
+            end
+        end
+
+        return
+    end
+
+    if (character:GetGasPoints() >= self.LETHAL_GAS) then
+        if ((!client.ixGasCoughCD or client.ixGasCoughCD < CurTime()) and 0.5 > math.random()) then
+            client.ixGasCoughCD = CurTime() + 5
+            client:EmitSound("ambient/voices/cough"..math.random(1, 4)..".wav")
+        end
+
+        local gasDeathTicks = math.min(character:GetGasPoints() + self.TIMER_INTERVAL / 60, self.GAS_DEATH)
+        character:SetGasPoints(gasDeathTicks)
+
+        if (gasDeathTicks >= self.GAS_DEATH) then
+            local permaKill = ix.config.Get("gasPermakill")
+            ix.log.Add(client, "gasDeath", permaKill)
+
+            client:Kill()
+            character:SetGasPoints(0)
+            if (permaKill) then
+                character:SetData("gasPermakill", true)
+            end
+
+            for _, v in ipairs(player.GetAll()) do
+                if ((v:GetMoveType() == MOVETYPE_NOCLIP and !v:InVehicle()) or v:Team() == FACTION_SERVERADMIN) then
+                    v:NotifyLocalized("gasDeathNotif", client:SteamName(), (permaKill and " and will be permakilled") or "")
+                end
+            end
+        end
+
+        return
+    end
+
+    local inArea = client.ixInArea and ix.area.stored[client.ixArea].type == "gas"
+    if ((inArea and !ix.config.Get("gasReverseZones")) or (ix.config.Get("gasReverseZones") and !inArea)) then
+        local filterValue = client:GetFilterValue()
+        local gasPointGain = self.TIMER_INTERVAL / 60
+        if (filterValue > 0) then
+            client:UpdateFilterValue(gasPointGain)
+            gasPointGain = gasPointGain * (1 - client:GetFilterQuality())
+        end
+
+        gasPointGain = gasPointGain * ix.config.Get("gasPointGainScale") * math.Remap(math.Clamp(client:Health() / client:GetMaxHealth(), 0, 1), 1, 0, 1, ix.config.Get("gasPointInjuryScale"))
+
+        local oldPoints = character:GetGasPoints()
+        local gasPoints = oldPoints + gasPointGain
+        character:SetGasPoints(gasPoints)
+        character:SetGasCooldownPoints(0)
+
+        if (gasPoints >= self.LETHAL_GAS) then
+            client:ChatNotifyLocalized("gasLethalNotif")
+            client:ChatNotifyLocalized("gasLethalNotifOOC")
+        else
+            if (ix.option.Get(client, "gasNotificationWarnings") and gasPoints >= 60 and oldPoints < 60) then
+                client:ChatNotifyLocalized("gasHighNotif")
+            elseif (gasPoints >= 100 and oldPoints < 100) then
+                client:ChatNotifyLocalized("gasNearLethalNotif")
+            end
+        end
+
+        if ((!client.ixGasCoughCD or client.ixGasCoughCD < CurTime()) and math.Clamp((gasPoints - 60) * (1 - client:GetFilterQuality()) / self.LETHAL_GAS, 0.01, 0.5) > math.random()) then
+            client.ixGasCoughCD = CurTime() + 5
+            client:EmitSound("ambient/voices/cough"..math.random(1, 4)..".wav")
+        end
+    else
+        local gasPointLoss = self.TIMER_INTERVAL / 60
+        local filterItem = client:GetFilterItem()
+        if (filterItem and !filterItem.noUseOutGas) then
+            client:UpdateFilterValue(gasPointLoss / 100)
+        end
+
+        if (character:GetGasPoints() > 0) then
+            local cdPoints = character:GetGasCooldownPoints()
+            if (cdPoints < self.GAS_COOLDOWN_DELAY) then
+                cdPoints = cdPoints + self.TIMER_INTERVAL / 60
+                character:SetGasCooldownPoints(math.min(cdPoints, self.GAS_COOLDOWN_DELAY))
+                if (cdPoints == self.GAS_COOLDOWN_DELAY and ix.option.Get(client, "gasNotificationWarnings")) then
+                    client:ChatNotifyLocalized("gasCDStart")
+                end
+            end
+
+            if (cdPoints == self.GAS_COOLDOWN_DELAY) then
+                character:SetGasCooldownStart(os.time())
+            end
+
+            if (cdPoints >= self.GAS_DECREASE_DELAY) then
+                character:SetGasPoints(self:deductTime(client, character:GetGasPoints(), gasPointLoss))
+            end
+        end
+    end
+end