1
0
Fork 0

Added Snake

This commit is contained in:
acn 2020-06-25 11:35:08 +02:00
parent 50c053f779
commit fcbbbbc21b
12 changed files with 1173 additions and 0 deletions

View File

@ -30,6 +30,7 @@ See this repository: https://git.imzadi.de/acn/backgammon-vt100
* [Blocks](Blocks/)
* [Robots](Robots/)
* [FindThatMine](FindThatMine/)
* [Snake](Snake/)
## More Games on the Interwebs

339
Snake/COPYING Normal file
View File

@ -0,0 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

48
Snake/README.md Normal file
View File

@ -0,0 +1,48 @@
# Snake
Snake game for CP/M and VT100/ANSI terminal
* First version (C) 2018, Karl A. Brokstad (www.z80.no)
* Turbo Pascal conversion and other mods with permission (C) 2018, linker3000 (linker3000-at-gmail-dot-com)
Version history:
* V1.2acn: 25-Jun-2020
Changed keys to 2/4/6/8 and H/J/K/L and clear ANSI attributes on exit
* V1.2T: 21-Jul-2019
Corrected Y boundary max in putFood.
* V1.1T: 14-Oct-2018
Command line switch -m (monochrome) suppresses all colour codes
Version numbering detached from Karl A. Brokstad's original
* V23N: 24-Sep-2018 First public release
Game map used for collision detection and food position
generation - this takes out several long loops.
Original GitHub repository: https://github.com/linker3000/Z80-Board
The first version can be found here: https://z80.no/projects/Pascal.html
## License
GPL v2, see the file COPYING
## Instructions
## Compiling
To compile SNAKE, just use Turbo Pascal from the ``TP/`` directory.
It's TP 3.0A for CP/M-80, only without the demo source code.
* Copy the TP files together with the SNAKE.PAS files to one disk
* The terminal definition is already set to ANSI and the speed is set to 8 MHz (for a
standard RC2014), so running TINST is not needed
* Run Turbo Pascal using TURBO
* Set the compiler options to "compile -> Com-file" (press O, C, Q)
* Compile ``SNAKE.PAS``: press C (Compile), then enter ``snake`` as Work file name.
This should result in a ``SNAKE.COM`` file.

BIN
Snake/SNAKE.COM Normal file

Binary file not shown.

380
Snake/SNAKE.PAS Normal file
View File

@ -0,0 +1,380 @@
program snake;
{$I- No I/O checking}
{$R- No range checking}
{$V- No string checking}
(*
Snake game for CP/M-80 V2.2 and VTxx/ANSI terminal
Original version (C) 2018, Karl A. Brokstad (www.z80.no)
Turbo Pascal conversion and other mods with permission
(C) 2018, linker3000 (linker3000-at-gmail-dot-com)
V1.2T: 21-Jul 2019
Corrected Y boundary max in putFood.
V1.1T: 14-Oct-2018
Command line switch -m (monochrome) suppresses all colour codes
Version numbering detached from Karl A. Brokstad's original
V23N: 24-Sep-2018 First public release
Game map used for collision detection and food position
generation - this takes out several long loops.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*)
Type
Str255 = string[255];
Const
progVersion : string[6] = '1.2acn';
borderChar : char = '#';
snakeHeadChar : char = 'O';
snakeBodyChar : char = '#';
xMax : Byte = 80;
yMax : Byte = 25;
var
snakeX : array [1..100] of byte;
snakeY : array [1..100] of byte;
gameGrid : array [2..80, 2..25] of byte; {Tracks snake body and tail}
snakeBodyANSI : String[8];
foodANSI : String[8];
snakeHeadANSI : String[8];
borderANSI : String[8];
resetANSI : String[4];
msgANSI : String[8];
snakeHead, snakeTail, snakeLength : integer;
I, level, score : integer;
inp, dir : char;
X, Y : byte;
crash, escaped : boolean;
time : integer; {Game delay factor}
food : boolean;
foodX, foodY, foodV : byte;
(* * * * * * * * * * writeCtr * * * * * * * * * *)
procedure writeCtr(Line : Byte; S : Str255);
{ Write a centered line of text}
Var
I : Integer;
begin
I := 40 - round(Length(S)/2);
If I < 1 then I := 1;
gotoxy(I,Line);
write(S);
end;
(* * * * * * * * * * clrKbd * * * * * * * * * *)
procedure clrKbd; {Clear keyboard buffer}
begin
repeat until (bdos(6,255)) = 0;
end;
(* * * * * * * * * * readKbd * * * * * * * * * *)
procedure readKbd; {Check for direction keys}
begin
if keypressed then case upcase(chr(bdos(6,255))) of
'4','H','A' : dir := 'L'; (* left *)
'8','K','W' : dir := 'U'; (* up *)
'2','J','S' : dir := 'D'; (* down *)
'6','L','D' : dir := 'R'; (* right *)
'+' : time := (time + 5) and 255;
'-' : begin
time := time - 5;
if time < 0 then time := 0;
end;
'Q' : escaped := true;
end;
end;
(* * * * * * * * * conIn * * * * * * * * * * * *)
function conIn : char;
begin
conIn := chr(bdos(6, 255)); (* SILENT READ CHARACTER *)
end;
(* * * * * * * * sDelay * * * * * * * * * * * * * *)
{A non-blocking-ish delay during which we check the keyboard}
procedure sDelay (D : integer);
var I : integer;
begin
for I := 1 to D do
begin
Delay(1);
readKbd;
end;
end;
(* * * * * * * * * SPLASH SCREEN * * * * * * * * * * * *)
procedure SplashScreen;
begin
clrscr;
write (msgANSI);
writeCtr( 4,'SNAKE '+progVersion+' by Linker3000');
writeCtr( 5,'From the original by Karl A. Brokstad (www.Z80.no)');
writeCtr( 7,'This program comes with ABSOLUTELY NO WARRANTY.');
writeCtr( 9,'This is free software, and you are welcome to redistribute it');
writeCtr(10,'under certain conditions - see GPLV2 license:');
writeCtr(11,'https://www.gnu.org/licenses/gpl-2.0.html');
writeCtr(13,'Requirements:');
writeCtr(15,'80x25 ANSI/VT100 compatible console');
if (msgANSI = '') then
writeCtr(16,'(Monochrome mode was chosen by command line switch)')
else
writeCtr(16,'(Start program with -m switch to disable ANSI colors)');
writeCtr(18,'Movement:');
writeCtr(20,'4 = left, 8 = up, 2 = down, 6 = right OR use HJKL keys');
writeCtr(21,'Q = Quit to here during game');
writeCtr(23,'Press ENTER to START or Q to QUIT');
repeat
repeat until keypressed;
inp := conIn;
if ((inp = 'Q') or (inp = 'q')) then
begin
write (resetANSI);
halt;
end;
until (inp = #13);
end;
(* Put down food *)
Procedure putFood;
begin
(* food value 1-9 *)
foodV := 1 + random(9);
repeat {Find a new food location}
readKbd;
foodX := 3 + random(xMax-3); {Stay within walls}
foodY := 3 + random(yMax-4);
until (gameGrid[foodX,foodY] = 0); {Don't put food down over snake}
food := true;
gotoXY(foodX,foodY); {Draw food}
write(foodANSI, foodV ,resetANSI);
gotoXY(1,1);
readKbd;
end; {food}
(* * * * * * * * * DRAW SCREEN * * * * * * * * * * * *)
procedure DrawScreen;
var I : integer;
begin
clrscr;
write(borderANSI);
for I:=1 to xMax do
begin
gotoXY(I,1);
write(borderChar);
gotoXY(I,yMax);
write(borderChar);
end;
for I:=1 to yMax do
begin
gotoXY(1,I);
write(borderChar);
gotoXY(xMax,I);
write(borderChar);
end;
write(resetANSI);
end;
(* * * * * * * * * * * * * * * * * * * * * * *)
(* * * * * * * * * * MAIN * * * * * * * * * * *)
begin
snakeBodyANSI := #27'[40m';
foodANSI := #27'[33;40m'; {Yellow on black background}
snakeHeadANSI := #27'[40m';
borderANSI := #27'[31;44m';
resetANSI := #27'[0m'; {Reset ANSI attributes}
msgANSI := #27'[33;40m';
if (ParamCount > 0) and ((ParamStr(1) = '-m') or (ParamStr(1) = '-M')) then
begin
snakeBodyANSI := '';
foodANSI := '';
snakeHeadANSI := '';
borderANSI := '';
resetANSI := '';
msgANSI := '';
end;
repeat
randomize;
SplashScreen; (* show splash screen *)
(* * * * * * * * * INIT GAME * * * * * * * * *)
escaped := false;
crash := false;
score := 1;
level := 1;
time := 100; (* delay time *)
(* * * * * * * * * GAME LOOP * * * * * * * * *)
while (not escaped) and (not crash) do
begin
{Clear the object location grid}
for Y := 2 to yMax do for X := 2 to xMax do gameGrid[X,Y] := 0;
DrawScreen;
snakeHead := 1; (* first position *)
snakeLength := 1; (* length and last position *)
snakeTail := 2; (* position to erase snakeTail := snakeHead + snakeLength *)
X := 39; (* position in middle of screen *)
Y := 12;
snakeX[snakeLength] := X;
snakeY[snakeLength] := Y;
score := score + snakeLength; (* write level and score *)
gotoXY(30,1);
write(' LEVEL ',level,' SCORE : ',score,' ');
food := false;
for I := 5 downto 0 do
begin
gotoXY(X,Y);
write(I);
delay(500);
end;
dir := 'R';
(* * * * * * * * * START GAME LEVEL * * * * * * * * *)
repeat {Game level}
readKbd; {Check keyboard for input}
case dir of (* MOVE readKbd *)
'L' : X:=X-1; (* left *)
'R' : X:=X+1; (* right *)
'D' : Y:=Y+1; (* down *)
'U' : Y:=Y-1; (* up *)
end;
(* Save snake position *)
(* PUSH snake positions down the line *)
(* Always use full array size to keep processing speed consistent *)
for I := 100 downto 2 do
begin
readKbd; {Check keyboard for input}
snakeX[I] := snakeX[I-1];
snakeY[I] := snakeY[I-1];
end;
snakeX[snakeHead] := X;
snakeY[snakeHead] := Y;
gotoXY(snakeX[snakeHead],snakeY[snakeHead]); (* Draw new head *)
write (snakeHeadANSI,snakeHeadChar);
if snakeLength > 1 then
begin
readKbd;
gotoXY(snakeX[snakeHead+1],snakeY[snakeHead+1]); (* Draw body *)
gameGrid[snakeX[snakeHead+1],snakeY[snakeHead+1]] := 1; {Where the body is}
write (snakeBodyANSI,snakeBodyChar);
end;
gotoXY(snakeX[snakeTail],snakeY[snakeTail]); (* erase tail *)
gameGrid[snakeX[snakeTail],snakeY[snakeTail]] := 0; {Remove tail from map}
write (resetANSI,' ');
gotoXY(1,1);
if (food = false) then putFood; {Put down some food}
{Test snake position}
if (X < 2) or (X >= xMax) {Snake crashes into wall or own body }
or (Y < 2) or (Y >= yMax)
or (gameGrid[X,Y] = 1) then crash := true;
if (X = foodX) and (Y = foodY) then {Snake eats food }
begin
readKbd;
snakeLength := snakeLength + foodV;
food := false;
snakeTail := snakeLength +1;
score := score + (foodV * level);
gotoXY(30,1);
write(' LEVEL ',level,' SCORE : ',score,' ');
gotoXY(1,1);
readKbd;
end;
sDelay(time); (* delay *)
until crash or escaped or (snakeLength > 99); {game level}
(* * * * * * * * * * END GAME * * * * * * * *)
write(msgANSI);
if (crash or escaped) then (* game over *)
if crash then writeCtr(12,' YOU CRASHED ')
else writeCtr(12,' YOU QUIT! ');
if snakeLength > 99 then (* advance to next level *)
begin
level := level + 1;
time := time - 10;
if (time < 1) then time := 1;
writeCtr(12,' YOU MADE IT TO THE NEXT LEVEL ');
end;
write (resetANSI);
clrKbd;
writeCtr(14,' PRESS ENTER ');
repeat until conIn = #13;
end {while}
until false;
(* * * * * * * * * * FINISH * * * * * * * *)
end.


181
Snake/TP/READ.ME Normal file
View File

@ -0,0 +1,181 @@
Welcome to TURBO PASCAL Version 3.0!
------------------------------------
In spite of all efforts, some errors have found their way into
the new TURBO 3.0 manual. This file contains all the necessary
corrections and additions, and we apologize for any inconvenience
this may cause you.
Please make a working copy of your TURBO disk and store the ori-
ginal in a safe place. For help making a backup copy, please
refer to appendix M of the TURBO PASCAL Reference Manual.
NOTEº  Youò  TURBÏ  PASCAÌ disë haó beeî pre-installeä  foò  youò <20>
    Microbeå disë system¬ paù nï attentioî tï thå manuaì witè regardó <20>
    to installing TURBO PASCAL.
*******************************************
* *
* Need help with TURBO? Please see *
* Appendix N in your Reference Manual *
* for answers to common questions. *
* *
*******************************************
-------------------
Contents of the READ.ME File
----------------------------
1. CORRECTIONS to the 3.0 Reference Manual [ All versions ]
2. OMMISSIONS from the 3.0 Reference Manual [ All versions ]
3. New FEATURES [ CP/M-80 ]
4. ADDITIONAL FILE LIST [ CP/M-80 ]
-------------------
CORRECTIONS
-----------
Page 253 - MOV AL,[BP-1]
------------------------
The correct statement is: MOV AL,[BP+4]
Page 293 - TURBO-BCD will compile and run any program
-----------------------------------------------------
Well - almost. The Real functions Sin, Cos, ArcTan, Ln, Exp,
and Sqrt and the pre-declared constant Pi are not available
in TURBOBCD. Š
-------------------
OMISSIONS
---------
User Written Error Handlers
---------------------------
In Turbo Pascal 3.0 you may write your own error handler,
which is called in case of an I/O or Run-time error. The
procedure must have the following header:
procedure Error(ErrNo, ErrAddr: Integer);
The name of the procedure and its parameters are unim-
portant, as long as it is a procedure with two value
parameters of type Integer.
The value passed in ErrNo is the error type and number. The
most significant byte, i.e. "Hi(ErrNo)", contains the error
type, and the least significant byte, i.e. "Lo(ErrNo)",
contains the error number (see Appendix F or G in the Turbo
Pascal Manual).
The following error types are defined:
0 User Break (Ctrl-C).
1 I/O error.
2 Run-time error.
In case of a user interrupt (Ctrl-C), the low byte of
"ErrNo" is always 1. "ErrAddr" contains the address (offset
in Code Segment for 16 bit versions) of the error.
To activate the error handler, assign its offset address
to the standard variable "ErrorPtr", i.e.
ErrorPtr:=Ofs(Error); { 16 bit } or
ErrorPtr:=Addr(Error); { 8 bit }
There are no limits to what an error handler may do. Typi-
cally it will close all open files, output an error mes-
sage, and call the Halt standard procedure to terminate the
program. If an error handler returns, i.e. if it does
not call Halt, or if an error occurs within an error
handler, Turbo Pascal will itself output the error message
and terminate the program.
------------------- Š
NEW FEATURES OF CP/M-80 IMPLEMENTATION OF
TURBO 3.0
- AN OVERVIEW -
-----------------------------------------
Inline
------
A constant identifier used in an INLINE statement does not
always generate two bytes of code.
Files
-----
New FIB formats.
Optional 4th parameter on Blockread/Write returns number of
blocks actually read.
SeekEoln function.
SeekEof function.
Misc.
-----
Exit procedure - To exit the current block
OvrDrive procedure - To specify the drive on which to find overlays
ParamCount function - Gives number of characters in the command buffer
ParamStr function - Gives the string of characters in the command line
Overlays
--------
Overlay files are opened and closed every time they are
accessed. Therefore, there is never a need to specifically
close an overlay file.
The Y compiler directive is no longer supported. Instead,
the OvrPath (MS-DOS) or OvrDrive (CP/M) standard proce-
dures may be used to specify the drive and subdirectory
in which overlay files reside.
Please note that run-time error F0 indicates that your over-
lay file is missing or is called recursively. (This error
number is omitted from the Reference Manual but is included
elsewhere in this file.)
-------------------
TURBO PASCAL Version 3.0
CP/M-80
Additional File List
In addition to the list of files mentioned in Chapter 1 of
your TURBO Reference Manual, the following files are included
on your TURBO disk: Š
Sample programs
---------------
LISTER PAS - simple program to list your Pascal source
CMDLIN PAS - get parameters from the command line
MC PAS - sample spreadsheet program - MAIN MODULE
MC-MOD00 INC - sample spreadsheet program - INCLUDE MODULE 00
MC-MOD01 INC - sample spreadsheet program - INCLUDE MODULE 01
MC-MOD02 INC - sample spreadsheet program - INCLUDE MODULE 02
MC-MOD03 INC - sample spreadsheet program - INCLUDE MODULE 03
MC-MOD04 INC - sample spreadsheet program - INCLUDE MODULE 04
MC-MOD05 INC - sample spreadsheet program - INCLUDE MODULE 05
MC HLP - spreadsheet help file
MCDEMO MCS - spreadsheet data file (not for use with TURBO-87)
---------------------------------------------------------------------


BIN
Snake/TP/TINST.COM Normal file

Binary file not shown.

BIN
Snake/TP/TINST.DTA Normal file

Binary file not shown.

123
Snake/TP/TINST.MSG Normal file
View File

@ -0,0 +1,123 @@
1 TURBO Pascal installation menu.
2 Choose installation item from the following:
3
4 [S]creen installation | [C]ommand installation | [Q]uit
5
6 Enter S, C, or Q:
10 Duplicate definition. Error occurred between question
11 Commands starting with the same letter must have the same length.
Error occurred between question
12 The total maximum length of commands are execeeded
13 ->
14 CURSOR MOVEMENTS:
20 Character left
21 Alternative
22 Character right
23 Word left
24 Word right
25 Line up
26 Line down
27 Scroll down
28 Scroll up
29 Page up
30 Page down
31 To left on line
32 To right on line
33 To top of page
34 To bottom of page
35 To top of file
36 To end of file
37 To begining of block
38 To end of block
39 To last cursor position
15 INSERT & DELETE:
40 Insert mode on/off
41 Insert line
42 Delete line
43 Delete to end of line
44 Delete right word
45 Delete character under cursor
46 Delete left character
47 Alternative
16 BLOCK COMMANDS:
48 Mark block begin
49 Mark block end
50 Mark single word
51 Hide/display block
52 Copy block
53 Move block
54 Delete block
55 Read block from disk
56 Write block to disk
17 MISC. EDITING COMMANDS:
57 End edit
58 Tab
59 Auto tab on/off
60 Restore line
61 Find
62 Find & replace
63 Repeat last find
64 Control character prefix
101 Nothing
^Q: Quit, ^R: Last page, ^C: Next page, <RETURN>: Select terminal:
Wait Sorting Definitions
Change to:
(Y/N)?
y
n
Text file name:
Command:
Numeric entry expected
Legal range is
, please re-enter:
Choose one of the following terminals:
None of the above ( Max. 20 Characters )
Delete a definition ( Max. 20 Characters )
Which terminal? (Enter no. or ^Q to exit):
Delete terminal? (Enter no. or ^Q to exit):
Do you want to modify this definition before installation?
Terminal type:
Send an initialization string to the terminal?
Initializaion defined as a command string? (No = a file)
Send a reset string to the terminal
Reset defined as a command? (No = a file)
CURSOR LEAD-IN command:
CURSOR POSITIONING COMMAND to send between line and column:
CURSOR POSITIONING COMMAND to send after both line and column:
Column first
OFFSET to add to LINE:
OFFSET to add to COLUMN:
Binary address
Number of ASCII digits (2 or 3):
CLEAR SCREEN command:
Does CLEAR SCREEN also HOME cursor
HOME command:
DELETE LINE command:
INSERT LINE command:
ERASE TO END OF LINE command:
START HIGHLIGHTING command:
END HIGHLIGHTING command:
Number of rows (lines) on your screen:
Number of columns on your screen:
Delay after CURSOR ADDRESS (0-255 ms):
Delay after CLEAR, DELETE and INSERT (0-255 ms):
Delay after ERASE TO END OF LINE and HIGHLIGHT (0-255 ms):
Is this definition correct?
Hardware dependent information
Operating frequency of your microprocessor in MHz (for delays):
pendent information
Operating frequency of your microprocessor in MHz (for delays):


BIN
Snake/TP/TURBO.COM Normal file

Binary file not shown.

101
Snake/TP/TURBO.MSG Normal file
View File

@ -0,0 +1,101 @@
 are not allowed
 can not be
 constant
 does not
 expression
 identifier
 file
 here
Integer
File
Illegal
 or
Undefined
 match
 real
String
Textfile
 out of range
 variable
 overflow
 expected
 type
Invalid
 pointer
01';'
02':'
03','
04'('
05')'
06'='
07':='
08'['
09']'
10'.'
11'..'
12BEGIN
13DO
14END
15OF
17THEN
18TO DOWNTO
20Boolean
21 
22 
23 
24 
25 
26 
27 
28Pointer
29Record
30Simple
31Simple
32
33
34
35
36Type
37Untyped
40 label
41Unknown syntax error
42 in preceding definitions
43Duplicate label
44Type mismatch
45
46 and CASE selector
47Operand(s) operator
48 result
49  length
50 length
51 subrange base
52Lower bound > upper bound
53Reserved word
54 assignment
55 exceeds line
56Error in integer
57Error in
58 character in
60s
61 s ands
62Structureds
63s
64s and untypeds
65Untypeds
66I/O
67 s must be parameters
68 componentss
69dering of fields
70Set base
71 GOTO
72Label not within current block
73 FORWARD procedure(s)
74INLINE error
75 use of ABSOLUTE
90 not found
91Unexpected end of source
97Too many nested WITH's
98Memory
99Compilerd WITH's
98Memory
99Compiler

BIN
Snake/TP/TURBO.OVR Normal file

Binary file not shown.