It was back in the early 1970's when I first encountered StarTrek on a Univac mainframe computer. At that time, it was written in Univac 1100 Basic and had the official code label of 'STTR2.BAS'. (STTR1.BAS was the instructions) See the Michael Birken article on "Star Trek 1971 Text Game." All the commands and concepts are the same, if I recall correctly. The Univac 'STTR2' game launched me into programming. I just had to understand how it worked! As a result, I collected about a dozen varieties of this game from various other systems and converted them to Univac Basic. Later it was converted to Processor Technology SOL-20 BASIC5 and Extended Basic along with the classic versions of StarTrek that I had. This final version is in Visual Basic 5 and mimics the 'rolling text' screen of the older computer versions. One big difference is the Windows GUI push-button interface shown later.
One reason to submit this is that if I don't, it may be lost forever.
Now to make a long story short, I wrote this version from the ground up and expanded the 'Universe' to a 10x10 grid system and added other starships and 'enemies.' Several ships would then contribute to the overall scan of the 'galaxy' or 'universe.' Since this was so different a version, I named it GALAXY and was not aware of other programs 'out there' by the same name. Each ship could scan, shoot or do other commands before losing it's turn due to a move or a 'pass turn' command. And then the Klingons and cloaked Romulans would move! Once you knew where a Star Base was, you could 'dock' there and just wait for the enemies to approach you. Anti-matter bombs blew up stars and any nearby enemies. Anti-Matter Probes blew up stars in the adjoining quadrant along with the enemies. A Scout-Probe would show the 'scan' of all quadrants it traveled through. This was important to quickly find Star Bases before enemy movements could reset the scan. Once you find a Star Base, note it's co-ordinates as any other starship can do a point-to-point warp to that base.
This is just one 'subroutine' to illustrate some of the conversion to Visual Basic. This is one code block that may be simple enough to understand without writing a book to describe how it works. Since many of the variables were lifted 'as is' from the original code, the variables are NOT self-documenting as they could be if this were re-factored in a VB.NET conversion.
Public Function fxDecodeSymbol(sSymbol As String) As Integer
Dim iShipType As Integer
iShipType = -1
Select Case sSymbol
Case "<E>": iShipType = SC_ENTERPRISE
Case ":E:": iShipType = SC_E_SHUTTLE
Case "<L>": iShipType = SC_LEXINGTON
Case ":L:": iShipType = SC_L_SHUTTLE
Case "<R>": iShipType = SC_REPUBLIC
Case ":R:": iShipType = SC_R_SHUTTLE
Case "<I>": iShipType = SC_INTERPRID
Case ":I:": iShipType = SC_I_SHUTTLE
Case "<H>": iShipType = SC_HOOD
Case ":H:": iShipType = SC_H_SHUTTLE
Case sB$: iShipType = SC_BASE1
Case sK$: iShipType = SC_KL_WARSHIP
Case sJ$: iShipType = SC_KL_CRUISER
Case sR$: iShipType = SC_ROMULAN
Case sZ$: iShipType = SC_ZORPH
Case sG$: iShipType = SC_GORN
Case sG1$: iShipType = SC_GORN_SCOUT
Case sG2$: iShipType = SC_GORN_BASE
Case sX$: iShipType = SC_XEONITE
Case sH$: iShipType = SC_BLACK_HOLE
Case sN$: iShipType = SC_TRITON_MINE
fxDecodeSymbol = iShipType
Using the Program
The first graphic is the start-up screen to show some of the interface as well as the 'enemy' symbols in the 'header' block. This screen shows a short-range scan of the Klingons (2nd button on left panel).
This button is the same as the old PHOTONS '4' command. Also, note that we can 'Auto-Fire' which means that the computer does the calculations and shooting for us!
As a result, we take some return fire and will have to shoot again.
After that, we can click the Long Range scan button.
Then after checking our status, the computer's first button brings up the shared map.
This is a quick sample of the game. There is a HELP file with more information.
Points of Interest
Older original code (in Basic) is included with the source. There are instructions there also that reveal that you may have a 'Tractor Beam' to capture weak aliens. If I recall, you may be able to capture a Romulan Cloaking device. Each ship can launch one Shuttle-craft with an Anti-Matter bomb. It can act as a 'Scout' and maybe destroy an enemy. It appears as another ship on the 'universe' map. That is why you can only have up to 5 ships. You have up to 5 Shuttle-craft to potentially be active in the game. When they are lost, they are gone!