(svn r21975) -Add: console command to reset the engine pool. It removes the traces of engines which are no longer associated to a NewGRF, and can be used to e.g. 'fix' scenarios which were screwed up by the author. You can only use it when there are no vehicles in the game though.
IConsoleHelp("Reset NewGRF allocations of engine slots. This will remove invalid engine definitions, and might make default engines available again.");
returntrue;
}
if(_game_mode==GM_MENU){
IConsoleError("This command is only available in game and editor.");