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gamemodes/helix/plugins/crosshair.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.name = "Crosshair"
+PLUGIN.author = "Black Tea"
+PLUGIN.description = "A Crosshair."
+
+if (CLIENT) then
+	local function drawdot( pos, size, col )
+		local color = col[2]
+		surface.SetDrawColor(color.r, color.g, color.b, color.a)
+		surface.DrawRect(pos[1] - size/2, pos[2] - size/2, size, size)
+
+		color = col[1]
+		surface.SetDrawColor(color.r, color.g, color.b, color.a)
+		surface.DrawOutlinedRect(pos[1] - size/2, pos[2] - size/2 , size, size)
+	end
+
+	local aimVector, punchAngle, ft, screen, scaleFraction, distance
+	local math_round = math.Round
+	local curGap = 0
+	local curAlpha = 0
+	local maxDistance = 1000 ^ 2
+	local crossSize = 4
+	local crossGap = 0
+	local colors = {color_black}
+	local filter = {}
+
+	function PLUGIN:DrawCrosshair(x, y, trace)
+		local entity = trace.Entity
+		distance = trace.StartPos:DistToSqr(trace.HitPos)
+		scaleFraction = 1 - math.Clamp(distance / maxDistance, 0, .5)
+		crossSize = 4
+		crossGap = 25 * (scaleFraction - (LocalPlayer():IsWepRaised() and 0 or .1))
+
+		if (IsValid(entity) and entity:GetClass() == "ix_item" and
+			entity:GetPos():DistToSqr(trace.StartPos) <= 16384) then
+			crossGap = 0
+			crossSize = 5
+		end
+
+		curGap = Lerp(ft * 2, curGap, crossGap)
+		curAlpha = Lerp(ft * 2, curAlpha, !LocalPlayer():IsWepRaised() and 255 or 150)
+		curAlpha = hook.Run("GetCrosshairAlpha", curAlpha) or curAlpha
+		colors[2] = Color(255, curAlpha, curAlpha, curAlpha)
+
+		if (curAlpha > 1) then
+			drawdot( {math_round(screen.x), math_round(screen.y)}, crossSize, colors)
+			drawdot( {math_round(screen.x + curGap), math_round(screen.y)}, crossSize, colors)
+			drawdot( {math_round(screen.x - curGap), math_round(screen.y)}, crossSize, colors)
+			drawdot( {math_round(screen.x), math_round(screen.y + curGap * .8)}, crossSize, colors)
+			drawdot( {math_round(screen.x), math_round(screen.y - curGap * .8)}, crossSize, colors)
+		end
+	end
+
+	-- luacheck: globals g_ContextMenu
+	function PLUGIN:PostDrawHUD()
+		local client = LocalPlayer()
+		if (!client:GetCharacter() or !client:Alive()) then
+			return
+		end
+
+		local entity = Entity(client:GetLocalVar("ragdoll", 0))
+
+		if (entity:IsValid()) then
+			return
+		end
+
+		local wep = client:GetActiveWeapon()
+		local bShouldDraw = hook.Run("ShouldDrawCrosshair", client, wep)
+
+		if (bShouldDraw == false or !IsValid(wep) or wep.DrawCrosshair == false) then
+			return
+		end
+
+		if (bShouldDraw == false or g_ContextMenu:IsVisible() or
+			(IsValid(ix.gui.characterMenu) and !ix.gui.characterMenu:IsClosing())) then
+			return
+		end
+
+		aimVector = client:EyeAngles()
+		punchAngle = client:GetViewPunchAngles()
+		ft = FrameTime()
+		filter = {client}
+
+		local vehicle = client:GetVehicle()
+		if (vehicle and IsValid(vehicle)) then
+			aimVector = aimVector + vehicle:GetAngles()
+			table.insert(filter, vehicle)
+		end
+
+		local data = {}
+			data.start = client:GetShootPos()
+			data.endpos = data.start + (aimVector + punchAngle):Forward() * 65535
+			data.filter = filter
+		local trace = util.TraceLine(data)
+
+		local drawTarget = self
+		local drawFunction = self.DrawCrosshair
+
+		-- we'll manually call this since CHudCrosshair is never drawn; checks are already performed
+		if (wep.DoDrawCrosshair) then
+			drawTarget = wep
+			drawFunction = wep.DoDrawCrosshair
+		end
+
+		screen = trace.HitPos:ToScreen()
+		drawFunction(drawTarget, screen.x, screen.y, trace)
+	end
+end