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gamemodes/helix/plugins/act/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 PLUGIN = PLUGIN
+
+PLUGIN.cameraWheelOffset = 1
+PLUGIN.cameraWheelDelta = PLUGIN.cameraWheelOffset
+
+PLUGIN.cameraInOutOffset = 0
+PLUGIN.cameraInOutDelta = PLUGIN.cameraInOutOffset
+
+local function GetHeadBone(client)
+	local head
+
+	for i = 1, client:GetBoneCount() do
+		if (string.find(client:GetBoneName(i):lower(), "head")) then
+			head = i
+			break
+		end
+	end
+
+	return head
+end
+
+function PLUGIN:PlayerBindPress(client, bind, bPressed)
+	if (!client:GetNetVar("actEnterAngle")) then
+		return
+	end
+
+	if (bind:find("+jump") and bPressed) then
+		ix.command.Send("ExitAct")
+
+		PLUGIN.cameraInOutOffset = ix.option.Get("thirdpersonEnabled") and 1 or 0
+
+		return true
+	end
+end
+
+function PLUGIN:InputMouseApply(cmd)
+	if !LocalPlayer():GetNetVar("actEnterAngle") then
+		return
+	end
+
+	local mouseWheel = cmd:GetMouseWheel()
+
+	if mouseWheel != 0 then
+		self.cameraWheelOffset = math.Clamp(self.cameraWheelOffset + (-mouseWheel * 0.5), 1.0, 1.5)
+	end
+end
+
+local traceMin = Vector(-4, -4, -4)
+local traceMax = Vector(4, 4, 4)
+
+function PLUGIN:CalcView(client, origin)
+	if !client:GetNetVar("actEnterAngle") then
+		return
+	end
+
+	local frameTime = FrameTime()
+
+	self.cameraWheelDelta = math.Approach(self.cameraWheelDelta, self.cameraWheelOffset, frameTime * 6)
+	self.cameraInOutDelta = math.Approach(self.cameraInOutDelta, self.cameraInOutOffset, frameTime * 4)
+
+	local view = {}
+	view.drawviewer = self.cameraInOutDelta >= 0.225 * (self.cameraWheelOffset * 0.1)
+
+	local head = GetHeadBone(client)
+	local headOffset = Vector(0, 0, 64)
+
+	if head then
+		headOffset = client:GetBonePosition(head)
+	end
+
+	local currentAngle = client.camAng or angle_zero
+
+	local tracePosition = {}
+	tracePosition.start = headOffset + client:GetNetVar("actEnterAngle"):Forward() * 10
+	tracePosition.endpos = tracePosition.start - currentAngle:Forward() * (70 * self.cameraInOutDelta) * self.cameraWheelDelta
+	tracePosition.filter = client
+	tracePosition.ignoreworld = false
+	tracePosition.mins = traceMin
+	tracePosition.maxs = traceMax
+
+	view.origin = util.TraceHull(tracePosition).HitPos
+	view.angles = currentAngle + client:GetViewPunchAngles()
+
+	local aimOrigin = view.origin
+
+	local traceAngle = {}
+	traceAngle.start = 	aimOrigin
+	traceAngle.endpos = aimOrigin + currentAngle:Forward() * 65535
+	traceAngle.filter = client
+	traceAngle.ignoreworld = (client:GetMoveType() == MOVETYPE_NOCLIP)
+
+	client:SetEyeAngles((util.TraceLine(traceAngle).HitPos - client:GetShootPos()):Angle())
+
+	return view
+end
+
+net.Receive("ixActEnter", function()
+	if ix.option.Get("thirdpersonEnabled") then
+		PLUGIN.cameraInOutOffset = 1
+		PLUGIN.cameraInOutDelta = PLUGIN.cameraInOutOffset
+	end
+
+	PLUGIN.cameraInOutOffset = 1
+end)
+
+net.Receive("ixActLeave", function()
+	PLUGIN.cameraWheelOffset = 1
+	PLUGIN.cameraWheelDelta = PLUGIN.cameraWheelOffset
+
+	PLUGIN.cameraInOutOffset = 0
+	PLUGIN.cameraInOutDelta = PLUGIN.cameraInOutOffset
+end)

gamemodes/helix/plugins/act/sh_definitions.lua

@@ -0,0 +1,377 @@
+--[[
+| 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 function FacingWall(client)
+	local data = {}
+	data.start = client:EyePos()
+	data.endpos = data.start + client:GetForward() * 20
+	data.filter = client
+
+	if (!util.TraceLine(data).Hit) then
+		return "@faceWall"
+	end
+end
+
+local function FacingWallBack(client)
+	local data = {}
+	data.start = client:LocalToWorld(client:OBBCenter())
+	data.endpos = data.start - client:GetForward() * 20
+	data.filter = client
+
+	if (!util.TraceLine(data).Hit) then
+		return "@faceWallBack"
+	end
+end
+
+function PLUGIN:SetupActs()
+	-- sit
+	ix.act.Register("Sit", "metrocop", {
+		sequence = {"n7_male_sit_ground", "n7_male_sit01", "n7_male_sit02", "n7_male_sit03", "n7_male_sit04", "n7_male_sit05", "n7_male_sit06", "n7_male_sit07"},
+		untimed = true
+	})
+
+	ix.act.Register("Sit", "citizen_male", {
+		sequence = {"willard_male_male_sit_ground", "willard_male_male_sit01", "willard_male_male_sit02", "willard_male_male_sit03", "willard_male_male_sit04", "willard_male_male_sit05", "willard_male_male_sit06", "willard_male_male_sit07"},
+		untimed = true
+	})
+
+	ix.act.Register("Sit", "citizen_female", {
+		sequence = {"willard_female_sit_ground", "willard_female_sit01", "willard_female_sit02", "willard_female_sit03", "willard_female_sit04", "willard_female_sit05", "willard_female_sit06", "willard_female_sit07"},
+		untimed = true
+	})
+
+	ix.act.Register("Sit", "metrocop_female", {
+		sequence = {"n7_female_sit_ground", "n7_female_sit01", "n7_female_sit02", "n7_female_sit03", "n7_female_sit04", "n7_female_sit05", "n7_female_sit06", "n7_female_sit07"},
+		untimed = true
+	})
+
+	-- sitwall
+	ix.act.Register("SitWall", "metrocop", {
+		sequence = {
+			{"n7_male_sitwall", check = FacingWallBack},
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("SitWall", "citizen_male", {
+		sequence = {
+			{"willard_male_male_sitwall", check = FacingWallBack},
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("SitWall", "metrocop_female", {
+		sequence = {
+			{"n7_female_sitwall", check = FacingWallBack},
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("SitWall", "citizen_female", {
+		sequence = {
+			{"willard_female_sitwall", check = FacingWallBack},
+		},
+		untimed = true,
+		idle = true
+	})
+
+	--sitlean
+	ix.act.Register("SitLean", {"citizen_male", "citizen_female"}, {
+		sequence = {"sitccouchtv1", "sitchair1", "sitchairtable1", "sitcouch1", "sitcouchknees1"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("SitChair", "citizen_male", {
+		start = {"idle_to_sit_chair"},
+		sequence = "sit_chair",
+		finish = {"sit_chair_to_idle", duration = 2.1},
+		untimed = true,
+		idle = true
+	})
+
+	-- Idle
+	ix.act.Register("Idle", "vortigaunt", {
+		sequence = "idle_nectar",
+		untimed = true,
+		idle = true
+	})
+
+	-- Kneel
+	ix.act.Register("Kneel", "vortigaunt", {
+		sequence = "rescue_idle",
+		untimed = true,
+		idle = true
+	})
+
+	-- Sit
+	ix.act.Register("Sit", "vortigaunt", {
+		sequence = {"chess_wait", {"sit_rollercoaster", offset = function(client)
+				return client:GetUp() * 25 + client:GetForward() * -30
+			end}
+		},
+		untimed = true,
+		idle = true
+	})
+
+	-- stand
+	ix.act.Register("Stand","metrocop", {
+		sequence = {"n7_male_stand01", "n7_male_stand02", "n7_male_stand03", "n7_male_stand04", "n7_male_stand05"},
+		untimed = true
+	})
+
+	ix.act.Register("Stand", "citizen_male", {
+		sequence = {"willard_male_male_stand01", "willard_male_male_stand02", "willard_male_male_stand03", "willard_male_male_stand04", "willard_male_male_stand05"},
+		untimed = true
+	})
+
+	ix.act.Register("Stand", "metrocop_female", {
+		sequence = {"n7_female_stand01", "n7_female_stand02", "n7_female_stand03", "n7_female_stand04", "n7_female_stand05"},
+		untimed = true
+	})
+
+	ix.act.Register("Stand", "citizen_female", {
+		sequence = {"willard_female_stand01", "willard_female_stand02", "willard_female_stand03", "willard_female_stand04", "willard_female_stand05"},
+		untimed = true
+	})
+
+	-- type
+	ix.act.Register("Type", "overwatch", {
+		sequence = "console_type_loop",
+		untimed = true,
+		idle = true
+	})
+
+	-- cheer
+	ix.act.Register("Cheer", {"citizen_male", "metrocop"}, {
+		sequence = {{"cheer1", duration = 1.6}, "cheer2", "wave_smg1"}
+	})
+
+	ix.act.Register("Cheer", {"citizen_female", "metrocop_female"}, {
+		sequence = {"cheer1", "wave_smg1"}
+	})
+
+	-- lean
+	ix.act.Register("Lean", {"citizen_male", "citizen_female"}, {
+		start = {"idle_to_lean_back", "", ""},
+		sequence = {
+			{"lean_back", check = FacingWallBack},
+			{"plazaidle1", check = FacingWallBack},
+			{"plazaidle2", check = FacingWallBack}
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Lean", {"metrocop"}, {
+		sequence = {
+				{"n7_male_lean01", check = FacingWallBack},
+				{"n7_male_lean02", check = FacingWallBack},
+				{"idle_baton", check = FacingWallBack},
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Lean", "citizen_male", {
+		sequence = {
+			{"willard_male_male_lean01", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 4
+			end},
+			{"willard_male_male_lean02", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 3
+			end}
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Lean", "metrocop_female", {
+		sequence = {
+			{"n7_female_lean01", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 6
+			end},
+			{"n7_female_lean02", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 4
+			end}
+		},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Lean", "citizen_female", {
+		sequence = {
+			{"willard_female_lean01", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 6
+			end},
+			{"willard_female_lean02", check = FacingWallBack, offset = function(client)
+				return client:GetForward() * 4
+			end}
+		},
+		untimed = true,
+		idle = true
+	})
+
+	-- injured
+	ix.act.Register("Injured", "metrocop", {
+		sequence = {"n7_male_injured"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Injured", "citizen_male", {
+		sequence = {"willard_male_male_injured"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Injured", "metrocop_female", {
+		sequence = "n7_female_injured",
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Injured", "citizen_female", {
+		sequence = "willard_female_injured",
+		untimed = true,
+		idle = true
+	})
+
+	-- arrest
+	ix.act.Register("Arrest", "metrocop", {
+		sequence = {"n7_male_arrest", "n7_male_arrest_sit01", "n7_male_handsup"},
+		untimed = true
+	})
+
+	ix.act.Register("Arrest", "citizen_male", {
+		sequence = {"willard_male_male_arrest", "willard_male_male_arrest_sit01", "willard_male_male_handsup"},
+		untimed = true
+	})
+
+	ix.act.Register("Arrest", "metrocop_female", {
+		sequence = {"n7_female_arrest", "n7_female_arrest_sit01", "n7_female_handsup"},
+		untimed = true
+	})
+
+	ix.act.Register("Arrest", "citizen_female", {
+		sequence = {"willard_female_arrest", "willard_female_arrest_sit01", "willard_female_handsup"},
+		untimed = true
+	})
+
+	-- threat
+	ix.act.Register("Threat", "metrocop", {
+		sequence = {"plazathreat1", "plazathreat2"}
+	})
+
+	-- search
+	ix.act.Register("Search", "metrocop", {
+		sequence = "spreadwall",
+	})
+
+	-- deny
+	ix.act.Register("Deny", "metrocop", {
+		sequence = {"harassfront2", "harassfront1"}
+	})
+
+	-- motion
+	ix.act.Register("Motion", "metrocop", {
+		sequence = {"motionleft", "motionright", "luggagewarn"}
+	})
+
+	-- wave
+	ix.act.Register("Wave", {"citizen_male", "citizen_female"}, {
+		sequence = {{"wave", duration = 2.75}, {"wave_close", duration = 1.75}}
+	})
+
+	-- pant
+	ix.act.Register("Pant", {"citizen_male", "citizen_female"}, {
+		start = {"d2_coast03_postbattle_idle02_entry", "d2_coast03_postbattle_idle01_entry"},
+		sequence = {"d2_coast03_postbattle_idle02", {"d2_coast03_postbattle_idle01", check = FacingWall}},
+		untimed = true
+	})
+
+	-- window
+	ix.act.Register("Window", {"citizen_male", "metrocop"}, {
+		sequence = "d1_t03_tenements_look_out_window_idle",
+		untimed = true
+	})
+
+	ix.act.Register("Window", {"citizen_female", "metrocop_female"}, {
+		sequence = "d1_t03_lookoutwindow",
+		untimed = true
+	})
+
+	-- down
+	ix.act.Register("Down", "metrocop", {
+		sequence = {"n7_male_down01", "n7_male_down02", "n7_male_down03"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Down", "citizen_male", {
+		sequence = {"willard_male_male_down01", "willard_male_male_down02", "willard_male_male_down03"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Down", "metrocop_female", {
+		sequence = {"n7_female_down01", "n7_female_down02", "n7_female_down03"},
+		untimed = true,
+		idle = true
+	})
+
+	ix.act.Register("Down", "citizen_female", {
+		sequence = {"willard_female_down01", "willard_female_down02", "willard_female_down03"},
+		untimed = true,
+		idle = true
+	})
+
+
+	-- Check
+	ix.act.Register("Check", "metrocop", {
+		sequence = {"n7_male_check"},
+		untimed = true
+	})
+
+	ix.act.Register("Check", "citizen_male", {
+		sequence = {"willard_male_male_check"},
+		untimed = true
+	})
+
+	ix.act.Register("Check", "metrocop_female", {
+		sequence = {"n7_female_check"},
+		untimed = true
+	})
+
+	ix.act.Register("Check", "citizen_female", {
+		sequence = {"willard_female_check"},
+		untimed = true
+	})
+
+
+	-- Knock
+	ix.act.Register("KnockIdle", "metrocop", {
+		sequence = {"adoorcidle"},
+		untimed = true
+	})
+
+	ix.act.Register("Knock", "metrocop", {
+		sequence = {"adoorknock"},
+		untimed = true
+	})
+
+	ix.act.Register("Knock", "citizen_male", {
+		sequence = {"d1_town05_Leon_Door_Knock"}
+	})
+end

gamemodes/helix/plugins/act/sh_plugin.lua

@@ -0,0 +1,285 @@
+--[[
+| 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/
+--]]
+
+
+--[[--
+Provides players the ability to perform animations.
+
+]]
+-- @module ix.act
+
+local PLUGIN = PLUGIN
+
+PLUGIN.name = "Player Acts"
+PLUGIN.description = "Adds animations that can be performed by certain models."
+PLUGIN.author = "`impulse"
+
+ix.act = ix.act or {}
+ix.act.stored = ix.act.stored or {}
+
+CAMI.RegisterPrivilege({
+	Name = "Helix - Player Acts",
+	MinAccess = "user"
+})
+
+--- Registers a sequence as a performable animation.
+-- @realm shared
+-- @string name Name of the animation (in CamelCase)
+-- @string modelClass Model class to add this animation to
+-- @tab data An `ActInfoStructure` table describing the animation
+function ix.act.Register(name, modelClass, data)
+	ix.act.stored[name] = ix.act.stored[name] or {} -- might be adding onto an existing act
+
+	if (!data.sequence) then
+		return ErrorNoHalt(string.format(
+			"Act '%s' for '%s' tried to register without a provided sequence\n", name, modelClass
+		))
+	end
+
+	if (!istable(data.sequence)) then
+		data.sequence = {data.sequence}
+	end
+
+	if (data.start and istable(data.start) and #data.start != #data.sequence) then
+		return ErrorNoHalt(string.format(
+			"Act '%s' tried to register without matching number of enter sequences\n", name
+		))
+	end
+
+	if (data.finish and istable(data.finish) and #data.finish != #data.sequence) then
+		return ErrorNoHalt(string.format(
+			"Act '%s' tried to register without matching number of exit sequences\n", name
+		))
+	end
+
+	if (istable(modelClass)) then
+		for _, v in ipairs(modelClass) do
+			ix.act.stored[name][v] = data
+		end
+	else
+		ix.act.stored[name][modelClass] = data
+	end
+end
+
+--- Removes a sequence from being performable if it has been previously registered.
+-- @realm shared
+-- @string name Name of the animation
+function ix.act.Remove(name)
+	ix.act.stored[name] = nil
+	ix.command.list["Act" .. name] = nil
+end
+
+ix.util.Include("sh_definitions.lua")
+ix.util.Include("sv_hooks.lua")
+ix.util.Include("cl_hooks.lua")
+
+function PLUGIN:InitializedPlugins()
+	hook.Run("SetupActs")
+	hook.Run("PostSetupActs")
+end
+
+function PLUGIN:ExitAct(client)
+	client.ixUntimedSequence = nil
+	client:SetNetVar("actEnterAngle")
+
+	hook.Run("OnPlayerExitAct", client)
+
+	net.Start("ixActLeave")
+	net.Send(client)
+end
+
+function PLUGIN:PostSetupActs()
+	-- create chat commands for all stored acts
+	for act, classes in pairs(ix.act.stored) do
+		local variants = 1
+		local COMMAND = {
+			privilege = "Player Acts"
+		}
+
+		-- check if this act has any variants (i.e /ActSit 2)
+		for _, v in pairs(classes) do
+			if (#v.sequence > 1) then
+				variants = math.max(variants, #v.sequence)
+			end
+		end
+
+		-- setup command arguments if there are variants for this act
+		if (variants > 1) then
+			COMMAND.arguments = bit.bor(ix.type.number, ix.type.optional)
+			COMMAND.argumentNames = {"variant (1-" .. variants .. ")"}
+		end
+
+		COMMAND.alias = "Anim" .. act -- Old habits die hard.
+
+		COMMAND.GetDescription = function(command)
+			return L("cmdAct", act)
+		end
+
+		local privilege = "Helix - " .. COMMAND.privilege
+
+		-- we'll perform a model class check in OnCheckAccess to prevent the command from showing up on the client at all
+		COMMAND.OnCheckAccess = function(command, client)
+			local bHasAccess, _ = CAMI.PlayerHasAccess(client, privilege, nil)
+
+			if (!bHasAccess) then
+				return false
+			end
+
+			local modelClass = ix.anim.GetModelClass(client:GetModel())
+
+			if (!classes[modelClass]) then
+				return false, "modelNoSeq"
+			end
+
+			return true
+		end
+
+		COMMAND.OnRun = function(command, client, variant)
+			-- Anti-Exploit measure. Just silently fail if near a door.
+			for _, entity in ipairs(ents.FindInSphere(client:GetPos(), 50)) do
+				if (entity:GetClass() == "func_door" or entity:GetClass() == "func_door_rotating" or entity:GetClass() == "prop_door_rotating") then return end
+			end
+
+			variant = math.Clamp(tonumber(variant) or 1, 1, variants)
+
+			if (client:GetNetVar("actEnterAngle")) then
+				return "@notNow"
+			end
+
+			local modelClass = ix.anim.GetModelClass(client:GetModel())
+			local bCanEnter, error = hook.Run("CanPlayerEnterAct", client, modelClass, variant, classes)
+
+			if (!bCanEnter) then
+				return error
+			end
+
+			local data = classes[modelClass]
+			local mainSequence = data.sequence[variant]
+			local mainDuration
+
+			-- check if the main sequence has any extra info
+			if (istable(mainSequence)) then
+				-- any validity checks to perform (i.e facing a wall)
+				if (mainSequence.check) then
+					local result = mainSequence.check(client)
+
+					if (result) then
+						return result
+					end
+				end
+
+				-- position offset
+				if (mainSequence.offset) then
+					client.ixOldPosition = client:GetPos()
+					client:SetPos(client:GetPos() + mainSequence.offset(client))
+				end
+
+				mainDuration = mainSequence.duration
+				mainSequence = mainSequence[1]
+			end
+
+			local startSequence = data.start and data.start[variant] or ""
+			local startDuration
+
+			if (istable(startSequence)) then
+				startDuration = startSequence.duration
+				startSequence = startSequence[1]
+			end
+
+			client:SetNetVar("actEnterAngle", client:GetAngles())
+
+			client:ForceSequence(startSequence, function()
+				-- we've finished the start sequence
+				client.ixUntimedSequence = data.untimed -- client can exit after the start sequence finishes playing
+
+				local duration = client:ForceSequence(mainSequence, function()
+					-- we've stopped playing the main sequence (either duration expired or user cancelled the act)
+					if (data.finish) then
+						local finishSequence = data.finish[variant]
+						local finishDuration
+
+						if (istable(finishSequence)) then
+							finishDuration = finishSequence.duration
+							finishSequence = finishSequence[1]
+						end
+
+						client:ForceSequence(finishSequence, function()
+							-- client has finished the end sequence and is no longer playing any animations
+							self:ExitAct(client)
+						end, finishDuration)
+					else
+						-- there's no end sequence so we can exit right away
+						self:ExitAct(client)
+					end
+				end, data.untimed and 0 or (mainDuration or nil))
+
+				if (!duration) then
+					-- the model doesn't support this variant
+					self:ExitAct(client)
+					client:NotifyLocalized("modelNoSeq")
+
+					return
+				end
+			end, startDuration, nil)
+
+			net.Start("ixActEnter")
+				net.WriteBool(data.idle or false)
+			net.Send(client)
+
+			client.ixNextAct = CurTime() + 4
+		end
+
+		ix.command.Add("Act" .. act, COMMAND)
+	end
+
+	-- setup exit act command
+	local COMMAND = {
+		privilege = "Player Acts",
+		OnRun = function(command, client)
+			-- Anti-Exploit measure. Just silently fail if near a door.
+			for _, entity in ipairs(ents.FindInSphere(client:GetPos(), 50)) do
+				if (entity:GetClass() == "func_door" or entity:GetClass() == "func_door_rotating" or entity:GetClass() == "prop_door_rotating") then return end
+			end
+
+			if (client.ixUntimedSequence) then
+				client:LeaveSequence()
+
+				hook.Run("OnPlayerExitAct", client)
+			end
+		end
+	}
+
+	if (CLIENT) then
+		-- hide this command from the command list
+		COMMAND.OnCheckAccess = function(client)
+			return false
+		end
+	end
+
+	ix.command.Add("ExitAct", COMMAND)
+end
+
+function PLUGIN:UpdateAnimation(client, moveData)
+	local angle = client:GetNetVar("actEnterAngle")
+
+	if (angle) then
+		client:SetRenderAngles(angle)
+	end
+end
+
+do
+	local keyBlacklist = IN_ATTACK + IN_ATTACK2
+
+	function PLUGIN:StartCommand(client, command)
+		if (client:GetNetVar("actEnterAngle")) then
+			command:RemoveKey(keyBlacklist)
+		end
+	end
+end

gamemodes/helix/plugins/act/sv_hooks.lua

@@ -0,0 +1,65 @@
+--[[
+| 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 PLUGIN = PLUGIN
+
+util.AddNetworkString("ixActEnter")
+util.AddNetworkString("ixActLeave")
+
+function PLUGIN:CanPlayerEnterAct(client, modelClass, variant, act)
+	if (!client:Alive() or client:GetLocalVar("ragdoll") or client:WaterLevel() > 0 or !client:IsOnGround()) then
+		return false, L("notNow", client)
+	end
+
+	-- check if player's model class has an entry in this act table
+	modelClass = modelClass or ix.anim.GetModelClass(client:GetModel())
+	local data = act[modelClass]
+
+	if (!data) then
+		return false, L("modelNoSeq", client)
+	end
+
+	-- some models don't support certain variants
+	local sequence = data.sequence[variant]
+
+	if (!sequence) then
+		hook.Run("OnPlayerExitAct", client)
+		return false, L("modelNoSeq", client)
+	end
+
+	return true
+end
+
+function PLUGIN:PlayerDeath(client)
+	if (client.ixUntimedSequence) then
+		client:SetNetVar("actEnterAngle")
+		client:LeaveSequence()
+		client.ixUntimedSequence = nil
+		hook.Run("OnPlayerExitAct", client)
+	end
+end
+
+function PLUGIN:PlayerSpawn(client)
+	if (client.ixUntimedSequence) then
+		client:SetNetVar("actEnterAngle")
+		client:LeaveSequence()
+		client.ixUntimedSequence = nil
+	end
+end
+
+function PLUGIN:OnCharacterFallover(client)
+	if (client.ixUntimedSequence) then
+		client:SetNetVar("actEnterAngle")
+		client:LeaveSequence()
+		client.ixUntimedSequence = nil
+		hook.Run("OnPlayerExitAct", client)
+	end
+end