Also, make all doors pickable and blockable even if they are 'bushes'?
a) How do you want to pick a "bush"?
b) As general guideline for you to tell when an exit should or should not be block-, bash-, or breakable (to tell BUG from FEATURE before you post
- Exits you cannot block are not solid or stable by themselves (as brushes, twigs, branches, thornbushes, curtains, tentflaps, ...). Any door that has a fairly limited border where edges connect is magically blockable (examples: 'bark', 'tree', or a 'rock' that connects to a rockface). Consider that doors have two sides. An exit is blockable when one side of it is (e.g. twigs/trapdoor or thornbushes/tree).
- Exits that you cannot bash are generally ones too heavy to bash down (well, that is what the message says). You can probably bash most other doors, and you can also 'bash' holes in a bush or a similar obstruction.
- Exits you cannot break are usually (!) ones that are typically somewhat magical. You should also be able to scramble loose rocks or shatter bushes with the spell 'break door'.
Note that technical limitations may exist (mudlle).