Lock picking puzzle - cursor below an object

Hi,

create it as a character. split the lock image into multiple images so that you can apply the right object center to each piece to determine if the pin should be drawn in front of or behind. You can use a Lua loop to force the character position to the cursor position & also include if queries to prevent it from 100% following the cursor position all over the screen. If you wanted you could lock the character so it only follows the x position of the cursor.

Mmm
I really doesn't know much about lua... Is there any documentation or lua example to look at?

I can't really think of a none Lua approach with it unless you were to change it to a QTE (quick time event) or something along those lines where the player has to click certain spots on the scene or press the specified keyboard button within x time, etc. That way you could just create it all as an animation that reacts to the mini-game. You could get away without using Lua script that way.

If you want the player to be able to manually control the hand then various things would have to be done including the use of Lua script to control the hand which would need to be created as a character or scene object so that images/animations in the scene can be correctly drawn on top of or behind it.

I`m going to follow your advice.
I have insert the hand as a character and I`m going to move the lock-pick with clicks (As QTE but with no time). 

No problem mate. Good luck.