This passage is from The Children's Bach by Helen Garner
In the huge room beyond the partition the phone rang and she heard Elizabeth pick it up. Before the caller had a chance to speak, Elizabeth said in a slow, low, very distinct voice, ‘Don’t ever ring this number at this hour, ever again. Is that clear?’ Vicki turned off the taps and stood in the bath. Sensible plans of action such as ‘Step out on to the floor’ or ‘Call out and ask her for a towel’ clicked their wooden sides together without meaning, like building blocks. She heard bed-clothes rustle, then a stillness. If she stood there long enough the drops of water would dry on her. Would her whole life be made up of these moments? The difference between these moments and being dead was that live people were always supposed to be doing something. Dead people could just shrivel. Her mother was lying on her back in a dark box, crabbed and cramped as a bat; her arms and legs were drawn up against her torso by the hourly drying and tightening of her skin which was by now no longer skin but had become cracked leather, dark reddish brown and ridged and shiny like what you saw on cooked ducks in Chinese food shops. Vicki had an idea that this was not scientifically accurate but she preferred this theory to thinking about dampness and worms. She closed the fire-escape door as quietly as she could. There was no sound from the bed.
Does "wooden" in the sentence "... clicked their wooden sides together without meaning, like building blocks." mean:
unsensible or silly?
something that is difficult to do?
I do not know why she is comparing these decisions with "building blocks" does "blocks" here mean: "bricks"?
and does "without meaning" mean "this plans that came to her mind were not logical"?
And about the second part in bold:
Is she thinking of herself as dead person because she is standing still in the bath and she think that live people always supposed to be doing something?
Does "crabbed" mean: "sullen" and "cramped" mean: "unable to move and feeling uncomfortable"?
Does "her arms and legs were drawn up against her torso" mean: "her arms and legs came closer to her torso"