BENNY_ACTIVECAMERA = nil

local fixer = Angle( 0, -90, 90 )
local fixer2 = Angle( 0, -90, 90 )
local cscam = {
	Special = function( self, ply )
		local pos = Vector()
		local ang = Angle()
		local fov = 90
		
		cuts:SetupBones()
		local mat = cuts:GetBoneMatrix( cuts:LookupBone( "camera" ) )
		local matf = cuts:GetBoneMatrix( cuts:LookupBone( "camera.fov" ) )

		pos:Set( mat:GetTranslation() )
		ang:Set( mat:GetAngles() )
		ang:Sub( fixer )

		local fix, fixa = matf:GetTranslation(), matf:GetAngles()
		fix:Sub( cuts:GetPos() )
		fov = fix.z

		do
			local x, y, z = pos.x, pos.y, pos.z
		end

		do
			local p, y, r = ang.p, ang.y, ang.r
			ang.p = -r
			ang.r = 0
		end

		fov = Convert( fov, (4/3) ) -- Convert to vertical FOV.. somehow
		fov = Convert( fov, (ScrH()/ScrW())/(3/4) ) -- Shut up default Source FOV widescreen magic

		return pos, ang, fov
	end
}

local function decide_active()
	local csent = ents.FindByClass( "benny_cutscene" )[1]
	if IsValid( csent ) then
		BENNY_ACTIVECAMERA = cscam
		cuts = csent
		return true
	end

	return false
end

function bennyfp( origin, angles, fov )
	local ply = LocalPlayer()
	if !IsValid( ply:GetActiveWeapon() ) then return origin, angles, fov end

	local pos, ang = ply:CamSpot( TPSOverride )

	return pos, ang, 90
end

hook.Add( "CalcView", "Benny_CalcView", function( ply, pos, ang, fov )
	if ConVarCL_Bool("cam_unlock") then return end
	if ply:NoclippingAndNotVaulting() then return end
	decide_active()
	local camera = BENNY_ACTIVECAMERA
	local view = {}
	view.origin = pos
	view.angles = ang
	view.fov = 90
	if false and camera then
		view.origin = camera.Pos
		view.angles = camera.Ang
		view.fov = camera.FOV or 60
		if camera.Special then
			view.origin, view.angles, view.fov = camera.Special( camera, ply )
		end
	end
		
	local wep = ply:BennyCheck()
	if wep then -- and ply:GetActiveWeapon():GetAim() > 0 then
		--local cv = wep:bWepClass( true ) and wep:bWepClass( true ).Custom_CalcView or wep:bWepClass( false ) and wep:bWepClass( false ).Custom_CalcView
		local halt = false
		--if cv then
		--	halt = cv( wep, view, view.origin, view.angles, view.fov )
		--end
		if !halt then
			view.drawviewer = true
			view.origin, view.angles, view.fov = bennyfp( view.origin, view.angles, view.fov )
		end
	end

	local st = ConVarCL_String("cam_override")
	if st != "" then
		local st = string.Explode( " ", st )
		view.origin.x	= tonumber(st[1])
		view.origin.y	= tonumber(st[2])
		view.origin.z	= tonumber(st[3])

		view.angles.x	= tonumber(st[4])
		view.angles.y	= tonumber(st[5])
		view.angles.z	= tonumber(st[6])

		view.fov		= tonumber(st[7])
	end

	if globhit then
		globhit:Set( view.origin )
		globang:Set( view.angles )
	end

	view.fov = Convert( view.fov, (ScrH()/ScrW())/(3/4) )
	return view
end )

function Convert( fovDegrees, ratio )
	local halfAngleRadians = fovDegrees * ( 0.5 * math.pi / 180 )
	local t = math.tan( halfAngleRadians )
	t = t * ratio
	local retDegrees = ( 180 / math.pi ) * math.atan( t )
	return retDegrees * 2
end

concommand.Add( "benny_dev_eyetrace", function( ply )
	local tr = ply:GetEyeTrace()
	print( string.format("Vector( %i, %i, %i )", math.Round( tr.HitPos.x ), math.Round( tr.HitPos.y ), math.Round( tr.HitPos.z ) ) )
	print( tr.Entity )
end)

if game.GetMap():Left( 13 ) == "bennysurvive_" then
	local ourMat = Material( "color" )
	hook.Add("PostDraw2DSkyBox", "ExampleHook", function()
		local r, g, b = render.GetFogColor()
		r=(r+1)/255
		g=(g+1)/255
		b=(b+1)/255
		local v = Vector( r, g, b )
		render.OverrideDepthEnable( true, false ) -- ignore Z to prevent drawing over 3D skybox
			ourMat:SetVector( "$color", v )
			render.SetMaterial( ourMat )
			render.DrawScreenQuadEx( 0, 0, ScrW(), ScrH() )
		render.OverrideDepthEnable( false, false )
	end)
end