Benny/gamemodes/benny/gamemode/camera.lua

---------------------
-- Your Name is Benny
---------------------

local cam_f = CreateConVar( "b-cam_f", -50 )
local cam_r = CreateConVar( "b-cam_r", 12 )
local cam_u = CreateConVar( "b-cam_u", 0 )
local cam_fov = CreateConVar( "b-cam_fov", 75 )

local m = 3
local m2 = Vector( m, m, m )
local m1 = m2:GetNegated()

TPSOverride = TPSOverride or Angle( 0, 0, 0 )

function CamSpot( ang, pos )
	if !ang then ang = TPSOverride end
	if !pos then pos = LocalPlayer():EyePos() end
	local f, r, u = TPSOverride:Forward(), TPSOverride:Right(), TPSOverride:Up()
	local tr = {
		start = pos,
		endpos = pos + (f*cam_f:GetFloat()) + (r*cam_r:GetFloat()) + (u*cam_u:GetFloat()),
		filter = LocalPlayer(), -- ply,
		mins = m1,
		maxs = m2,
	}
	tr = util.TraceHull(tr)
	return tr.HitPos
end

function GM:CalcView( ply, pos, ang, fov )
	local view = {
		origin = CamSpot(TPSOverride), -- pos includes the smoothstair offset which looks stupid here
		angles = TPSOverride,
		fov = cam_fov:GetFloat(),
		drawviewer = true
	}

	return view
end

hook.Add( "InputMouseApply", "Benny_InputMouseApply", function( cmd, x, y, ang )
	local p = LocalPlayer()
	local w = p:HandlerCheck()
	if w then--and (y!=0 or x!=0) then
		if x != 0 then
			TPSOverride.y = TPSOverride.y + (-x*0.022)
		end
		if y != 0 then
			TPSOverride.p = math.Clamp( TPSOverride.p + (y*0.022), -80, 80 )
		end
		return true
	end
end)

hook.Add("CreateMove", "Benny_CreateMove_Camera", function( cmd )
	local p = LocalPlayer()
	if p:GetMoveType() == MOVETYPE_NOCLIP then
		cmd:SetViewAngles( TPSOverride )
	else
		local tr_forward = util.TraceLine( {
			start = CamSpot(TPSOverride),
			endpos = CamSpot(TPSOverride)+(TPSOverride:Forward()*(2^16)),
			filter = p,
			mask = MASK_SHOT,
		} )

		local planner = (tr_forward.HitPos-p:EyePos()):Angle()
		planner:Normalize()
		cmd:SetViewAngles( planner )
		
		local moveintent = Vector( cmd:GetForwardMove(), cmd:GetSideMove(), 0 )


		local fixang = Angle()
		fixang.y = cmd:GetViewAngles().y - TPSOverride.y
		moveintent:Rotate( fixang )

		cmd:SetForwardMove( moveintent.x )
		cmd:SetSideMove( moveintent.y )
	end
end)