chathud.markup.tags.blackhole = {
    arguments = {1},

    pre_draw = function(markup, self, x,y, force)
        local delta = FrameTime() * 2

        for k,v in pairs(markup.chunks) do
            if v ~= self and v.w > 0 and v.h > 0 then
                if not v.phys then
                    v.phys = {
                        pos = {x = v.x, y = v.y},
                        vel = {x = 0, y = 0},
                    }
                end

                local phys = v.phys

                phys.vel.x = phys.vel.x + (self.x - phys.pos.x) * 0.01 * force
                phys.vel.y = phys.vel.y + (self.y - phys.pos.y) * 0.01 * force

                -- velocity
                phys.pos.x = phys.pos.x + (phys.vel.x * delta)
                phys.pos.y = phys.pos.y + (phys.vel.y * delta)

                -- friction
                phys.vel.x = phys.vel.x * 0.97
                phys.vel.y = phys.vel.y * 0.97

                v.x = phys.pos.x
                v.y = phys.pos.y
            end
        end
    end,
}