home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Jason Aller Floppy Collection
/
211.img
/
JETNEW.ZIP
/
README
< prev
next >
Wrap
Text File
|
1990-04-08
|
6KB
|
176 lines
Differences Between JET Version 2.12 and its Predecessors
Title Page
now appearing in CGA and Hercules-compatible modes
Dos-ability:
Copy protection has now been removed.
All files may now be loaded onto hard disk.
Select from multiple scenery disks on a single drive.
Concurrent drivers (memory allocation):
Jet no longer needs to be loaded in fixed memory locations,
which, in previous versions, precluded various drivers.
Now JET runs with many other programs or drivers loaded.
Works with IBM PS/2 line (Micro Channel)
New Menus
more readable, consistent for all display types, DOS friendly
more selections: screen displays, scenery areas
full mobility throughout (forward/back and exit)
'x' in any menu returns you to DOS
New Demo
including:
sample aerobatics
target strike simulation
parachute ejection
positioned text messages as demo progresses
sampling scenes from the best of scenery disks
Demo scenery is also available for free flight mode.
Zoom factors:
1, 2, 3 .. 9, doubling each time instead of
1, 2, 4, and 8
Higher Resolution Displays:
EGA 320x200
This display is twice the resolution of a standard
EGA screen, and 16-colors are used, as opposed to the
four-color-at-a-time CGA emulation mode.
EGA 640x350 enhanced modes 1 and 2
If you have an EGA, you will probably want to use these
options. Depending on what EGA card you have, how it
was installed, and what type of monitor you have, will
together determine which of these options you will want
to use. Most EGA's with enhanced monitors we've seen
look better with mode 1 ('j'). Mode 2 will use the same
color combination as EGA 320x200. Mode 2 will appear
marginally acceptable with many washed-out greens if
you should be using mode 1. The carrier under mode 1
will appear to be floating on a black sea while in the
target strike game if you should be using mode 2.
Mouse control:
two-button drag:
forward/back throttle
left: brakes, right: brake release
left button: cycle selected weapon
right button: center aileron and elevator
forward/back: pitch control (elevator)
left/right: bank control (ailerons and rudder coordinated)
Loadable scenery files (no longer only scenery disks):
Run the program on this disk called "mscenery," and follow
the directions given there to convert your SubLOGIC scenery
disks to work with JET. To select the scenery disk you want
from within JET, type 'e' for "Load Scenery" on the Operating
Mode Selection Page. The second subsequent menu will allow
you to choose a scenery area from among those in your current
drive's selected subdirectory. This means you should generally
place all your scenery files in a subdirectory with your JET
files.
Old-style SubLOGIC scenery disks are still (again) supported
and selectable from the Scenery Selection Menu (which is new,
and provides much more flexibility). If you use Scenery Disks
(as opposed to scenery files), these scenery disks must be
placed in drive "A:".
Particularly useful if you have only a one- or two-floppy drive
system is the option (from the Scenery Selection Menu) to scan
another drive for scenery files. In this way, converted scenery
files may be accumulated in the default subdirectory on any
available disk drive, not necessitating scenery files to exist
in the same subdirectory or drive as the original JET program.
Using an IBM FSII disk as a scenery disk will allow you to fly
around the standard FS scenery (a previously unadvertised
feature.
Landing Gear
Now the jets are physically (visually) equipped with landing
gear, which is visible from tower viewing mode.
Joystick(s)
You may enable up to two joysticks now, with the second stick
being used as a throttle. When enabling a second joystick (from
the keyboard selection menu page, with repeated 'j' keypresses),
have the first joystick centered, and the second joystick pulled
all the way back, to indicate the throttle idle position. The
joystick routines have been improved to fly more consistently on
the full spectrum of IBM and compatible machine speeds.
Coordinate Systems Access:
As never before, JET allows you see where in the coordinate system
you are flying. This allows you to compare your actual location
versus where you may think you are on a scenery disk, or the
default scenery areas in JET. Pressing 'z' while flying the JET
toggles location information which is displayed at the top of the
screen. Use this information to set coordinates at the "Scenery
Load Menu" to be able to avoid having to fly great distances to
get where you might want to be.
Internal improvements:
Overall speed improvements
Flight characteristics improved
Higher precision calculations
Properly restores current time on exit to DOS
Requirements:
Jet requires 120K of memory, after DOS has been loaded. For
this reasons, "128K" PC Jr.'s, which typically have about 80K
of memory after DOS has been loaded, won't work with Jet 2.12.
NOTE on Version 2.12: A bug was found which prevented some scenery
from displaying as quickly as it was designed to function on
the faster machines. This bug is now fixed in this version.
All other aspects of JET are identical. Another bug involved
the scenery buffer to overflow.
Jet Demonstration Program
This disk also contains a self-running demo of SubLOGIC Jet for the IBM PC/XT
/AT, PS/2 and compatibles.
To begin the demonstration, place the floppy disk in any available drive,
set DOS to that drive (if you're not already there), and type "jet" at the DOS
prompt. After viewing the title page, press the SPACE BAR to continue. A menu
will appear listing screen display options. Select the appropriate screen
display, keyboard, and demo mode by typing their associated letters. From this
oint the 10-minute demonstration will repeat continuously, until either the
machine is turned off, or ESC is pressed. ESC returns the machine to the game
selection menu.
The files on this diskette may be loaded onto any hard disk and run in the
same manner there as from the floppy disk.
SubLOGIC Engineering