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readme.txt
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2001-04-14
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Simutrans supports some commandline options, the current options include:
1.) Choose a resolution:
simuwin -res n
where n is one of 1,2,3,4,5
The switch -res chooses the resolution at program start:
1 = 640x480
2 = 800x600
3 = 1024x768
4 = 1280x1024
Resolution no. 5 runs Simutrans in a window instead of fullscreen mode
(Windows version only)
Use this switch at your own risk! Using a wrong resolution may damage your
monitor! Up to date monitors should support all resolutions, but older
monitors may have problems with the higher resolution settings. Don't expect
all resolutions to be available with your graphics card. The program will
abort the starting process if the graphics card doesn't support the chosen
resolution.
2.) Redirect output messages to a logfile:
simuwin -log
This writes all messages which are output after the game switches to graphics
mode to a file named "simu.log"
3.) Run Simutrans in free playing mode (unlimited money):
simuwin -freeplay
3a.) Run Simutrans in test mode (unlimited money,
directly starts a default map):
simuwin -test
In all former versions this was the default setting.
4.) Screen refresh setting:
On slow machines even updateing 640x480 pixels each frame may be
too much load for the CPU. To run Simutrans on slow machines, frame
skipping can be activated. Vehicles may move less smoothly this way,
but at least it is possible to run Simutrans at all.
Maybe this is helpful for running the big resolution on standard
machines, too.
simutrans -refresh n
displays every nth frame only. n=2 should result in a speedup of 25%,
n=3 in a speedup of 33%
You can chose n in a range from 1 to 16, where n=1 has the same effect as
omitting this setting at all. n >= 4 may result in 'jumpy' vehicle movement.
Try this at your owm to find a usable setting for your hardware. Usually
n=2 or n=3 work best on slow machines. n=16 may be a kind of slideshow mode.
5.) Shared memory usage:
The Linux/X-Windows version uses shred memory by default. In network
environments this may not work. USe -net to turn shared memory usage off.
simutrans -net
6.) Async screen updates:
The Linux/X-Windows can be forced to update the screen asynchroneously.
This may or may not improve the frame rate on your machine. On my setup
it turned out to be useless, but on other setups, this option has proven
helpful
simutrans -async
turns async screen updates on.
All the above mentioned options can be combined, i.e.
simuwin -res 2 -log -test
runs Simutrans in test mode, writes output to "simu.log" and
switches to a resolution of 800x600 pixels. Not all options are
available on all platforms, i.e. -async and -net are only
supported on Linux/X-Windows.
If you run into problems, or if you have questions, you can contact me
by email at:
hansjoerg.malthaner@gmx.de
Suggestions on how to improve Simutrans are also always welcome.
There are some Simutrans related web pages, you may want to visit them:
The official Simutrans home page:
http://www.simutrans.cjb.net
A mirror of the official site (maybe out of date):
http://drive.to/simutrans
This readme file was written by Hansjˆrg Malthaner, November 2000,
hansjoerg.malthaner@gmx.de