Fire warning only if necessary

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6308 8aca7d54-2c30-db11-9de9-000461428c89
FIX: when removing powertunnel remove unconnected powerlines at tunnel end

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6309 8aca7d54-2c30-db11-9de9-000461428c89
remove unused methods

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6310 8aca7d54-2c30-db11-9de9-000461428c89
CODE: use ptrhashtable_tpl instead of slist to mark non-ground tiles - should be faster

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6311 8aca7d54-2c30-db11-9de9-000461428c89
CHG: city bridges will be created without owner

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6312 8aca7d54-2c30-db11-9de9-000461428c89
FIX: uninitialized variable werkzeug_t::flags

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6313 8aca7d54-2c30-db11-9de9-000461428c89
forgot to commit this

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6314 8aca7d54-2c30-db11-9de9-000461428c89
remove include

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6315 8aca7d54-2c30-db11-9de9-000461428c89
CODE: compute connected components and use them in route search

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6316 8aca7d54-2c30-db11-9de9-000461428c89
CODE: simplify and slightly optimize factory_bauplatz_mit_strasse_sucher_t

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6317 8aca7d54-2c30-db11-9de9-000461428c89
CODE: Translate and document simworld.h and related files.

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6318 8aca7d54-2c30-db11-9de9-000461428c89
CODE: Minor doc fixes

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6319 8aca7d54-2c30-db11-9de9-000461428c89
FIX: AI should not try to start tunnels/bridges at planned tunnel/bridge end

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6320 8aca7d54-2c30-db11-9de9-000461428c89
FIX: AI player should check for water tile when creating ship schedule

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6321 8aca7d54-2c30-db11-9de9-000461428c89
Add simple tool 25 option u to join all convois with duplicate schedules to lines

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6322 8aca7d54-2c30-db11-9de9-000461428c89
compile again

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6323 8aca7d54-2c30-db11-9de9-000461428c89
CODE: Remove unnecessary indentation in move_cursor

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6324 8aca7d54-2c30-db11-9de9-000461428c89
FIX crash when no trees are present - always initialize baum_t::baum_typen_per_climate

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6325 8aca7d54-2c30-db11-9de9-000461428c89
FIX: disable all tree tools if no tree objects are available

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6326 8aca7d54-2c30-db11-9de9-000461428c89
CODE: some improvements to A*: do not try to go to parent tile, save
best new node and do not put it into queue


git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@6327 8aca7d54-2c30-db11-9de9-000461428c89