-- how do i make it so a's head follows b's head?

local print = epoe.Print

SafeRemoveEntity(cs_mdl) local a = ClientsideModel("models/player/combine_super_soldier.mdl") cs_mdl = a
local b = Entity(465)

a:SetPos(b:GetPos() + VectorRand() * 50)

local function find_bone(ent, str)
    for i = 0, ent:GetBoneCount() do
        local name = ent:GetBoneName(i)
        if name:lower():find(str) then
            return i
        end
    end
end

hook.Add("Think", 1, function()
    local head1 = find_bone(a, "head")
    local head2 = find_bone(b, "head")

    -- reset so it doesn't become additive
    a:ManipulateBonePosition(head1, Vector(0,0,0))
    a:ManipulateBoneAngles(head1, Angle(0,0,0))

    -- ???????????????????
    local pos1, ang1 = a:GetBonePosition(a:GetBoneParent(head1))
    local pos2, ang2 = b:GetBonePosition(head2)
    local pos, ang = WorldToLocal(pos1, ang1, pos2, ang2)
    -- ~??????????????????

    a:ManipulateBoneAngles(head1, ang)
    a:ManipulateBonePosition(head1, pos)
end)