switches={
    cooldown=0,
    wait=0,
    current_list=nil,
    current_index=-1,
    [1]={[0]={20, 53,41}},
    [11]={[21]={11, 57,45}},
    [35]={[14]={32, 50,38,26,53,41,29}},
    [53]={[14]={72, 42,30}},
    [61]={[14]={54, 54,42}},
    [76]={[19]={77, 50,38,26},
          [22]={57, 53,41}},
    [80]={[18]={36, 56,44}},
    [39]={[27]={39, 62,63}}
}
--switches[11]={[21]={11, 57,45}}
--switches[11][21]={11, 57,45}

function switches.start(x, y)
    if switches.cooldown>0 then return end
    local hab, hx, hy = coords.world_to_tile(x, y)
    local tile_idx = (hx+hy*mapa_room_cols)+1
    -- mapa_set_tile_by_index(hab,tile_idx,57)
    arc_set_tile(x, y, editor_to_map_tile(57))
    switches.current_list=switches[hab+1][tile_idx]
    switches.current_index=2
    switches.wait=0
    switches.cooldown=60
    sound.play(audio_switch)
end

function switches.update()
    if switches.cooldown>0 then switches.cooldown=switches.cooldown-1 end
    if switches.current_list==nil then return end
    --cls(4)

    switches.wait=switches.wait+1

    if switches.wait>=6 then
        switches.wait=0
        local hab= switches.current_list[1]-1
        local tile_idx= switches.current_list[switches.current_index]+1
-- print(hab.." ("..tile_x..", "..tile_y..")")
        
        -- local tile_x, tile_y = coords.room_index_to_xy ( hab, tile_idx )
        -- local world_x, world_y = coords.room_to_world(hab, tile_x, tile_y)
        -- arc_set_tile(world_x, world_y, 256)

        arc_set_tile_by_index(hab,tile_idx,mapa_empty_tile)

        -- mapa_set_tile_by_index(switches.current_list[1]-1,switches.current_list[switches.current_index]+1,256)
        switches.current_index=switches.current_index+1
        if switches.current_index>#switches.current_list then
            switches.current_list=nil
        end
    end
end