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

local cam_f = CreateConVar( "b-cam_f", -75 )
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
	}

	if false then
		ply:SetupBones()
		local bm = ply:GetBoneMatrix(ply:LookupBone("DEF-spine.006"))
		view.origin = bm:GetTranslation()

		if ply:GetLayerSequence( GESTURE_SLOT_JUMP ) == ply:LookupSequence("dive_end_handgun") and ply:GetLayerCycle( GESTURE_SLOT_JUMP )<0.8 then
			local angles = ply:GetBoneMatrix(ply:LookupBone("DEF-spine.004")):GetAngles()
			angles.y = ang.y

			local magic = math.Remap( ply:GetLayerCycle( GESTURE_SLOT_JUMP ), 0.6, 0.8, 0, 1 )
			magic = math.Clamp( magic, 0, 1 )
			angles.p = Lerp( magic, angles.r-90, ang.p )
			angles.r = 0
			view.angles = angles
		else
			local special = math.Remap( ang.p, 0, 79, 0, 1 )
			special = math.Clamp(special, 0, 1 )
			special = math.ease.InCubic( special )
			local special2 = math.Remap( ang.p, -79, 0, 0, 1 )
			special2 = math.Clamp(special2, 0, 1 )
			special2 = special2 * (1-special)
			view.origin:Sub(ang:Forward()*2)
			view.origin:Add(ang:Up()*4*special2)
			view.origin:Add(ang:Up()*4*special)
		end


		local bid = ply:LookupBone("DEF-spine.006")
		ply:ManipulateBoneScale( bid, vector_origin )
		local bid = ply:LookupBone("DEF-spine.005")
		ply:ManipulateBoneScale( bid, vector_origin )
		--local bm = ply:GetBoneMatrix(bid)
		--bm:Scale(Vector(0, 0, 0))
		--ply:SetBoneMatrix(bid, bm)
		--local bid = ply:LookupBone("DEF-spine.005")
		--local bm = ply:GetBoneMatrix(bid)
		--bm:Scale(Vector(0, 0, 0))
		--ply:SetBoneMatrix(bid, bm)
	end

	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)