vapsppr@prism.gatech.EDU (Paul Raines) (05/23/91)
Version 1.2 of H. Piper! for SUPER-CHIP follows below.
The following changes were made.
-- The [ENTER] key will now work to restart
the game as if it was just run for the first time.
-- I have worked out a way to show the total
score in its full decimal glory. It is tricky
and gobbles up two registers, but seems to work.
-- The bonus for using the whole grid is now 100
points on top of what was earned normally.
-- The movement keys can now be held down to
move the crosshair long distances.
-- Corner pieces are guaranteed for the first four
pipes to get out of sticky situations with
the starting pipe placement.
Checksum for the unASCed program is
# 493Eh
1677.5
DISCLAIMER: Since CHIP makes use of undocumented features
of the HP48SX, anything happen: loss of data, meltdown,
etc. Therefore, I take no responsibility for any damage
whatsoever that occurs.
**************** H. Piper! **********************
OBJECT:
-------
You are presented with a 6 row, 10 column grid and
a preview panel of 5 pipes. A starting pipe will be
placed on the grid and will in a few seconds start
leaking. The object is to lay pipes on the grid to
contain the leak as long as you can. If the water
flows onto an empty grid site, onto the side of another
pipe or border, that plumbing job is finished. If you
did well enough, you may get another job. Otherwise
the game is over.
HOW TO PLAY:
------------
On the bottom and right borders of the grid are grid
pointers. The bottom pointer can be moved left with
the (1) key and right with the (2) key. The side
pointer can be moved up with the (9) key and down with
the (6) key. (Note: this is identical to the movement
keys for Syzygy by Roy Trevino) A crosshair is present
on the grid sites the two paddles point to.
Using the pointers, chose a grid site to place a pipe.
The pipe to be placed is the one at the bottom of
the preview column. Once a site is chosen, press the
(7) key to place the pipe there. You can replace
a pipe already at the grid site with a penalty of one
point. You cannot replace a pipe that the water has
already flown through. Trying to do this will make
you lose the pipe you were trying to place and also
penalize you one point.
When you have placed all the pipe you wish to for
a particular job, you can press the (+) key to make
the water flow *FAST*. You can still lay pipe if
you realize you made a mistake, but hurry!
KEY SUMMARY: Left (1)
Right (2)
Up (9)
Down (6)
Place (7)
Fast (+)
Once a job is over, press (SPACE) to continue.
There are ten levels with increasing water flow speed.
Level 10's speed is the same as that for *FAST*. If
you manage to get through level 10, it repeats at
that level till you fail. The starting speed with
which the flow comes out of the initial pipe is slower
than the usual flow, however this speed increases in
level also.
SCORING:
--------
You receive 3 points for every pipe the water flows
through. For the crossed pipes, flowing through
them in both directions gives you 6 points. (Note:
some adventuresome combinatorist might want to
figure out what the maximum possible score is. If
it is over 255, there could be a problem, but I
doubt it.) You are penalized 1 point for replacing
or trying to replace a pipe already on the grid.
The current job score is shown in upper right corner.
The score can not go negative, so if the score is
zero, you can replace pipes without penalty.
Once a job is over, the program checks to see if
every grid site was flown through. If so you
earn a 100 point bonus. The score earned is added to
the grand total and displayed on the screen shown
after (SPACE) is pressed.
If the game is over, the word OVER will be displayed
above the score and the (SPACE) key can be pressed
to exit. The total score will be written to user
flags so that the user lang program SCORE can
put the score on the stack. If over does not appear,
press (SPACE) to go on to the next job.
The points needed to go to the next job are
obtained by the following formula:
Points needed = 100 - (41 - 4 * level)
therefore, you need 63 points to go to job 2
67 points to go to job 3
...
99 points to go to job 11,12,....
The points needed for a level are shown below the
bottom right corner of a grid. Note that this
does not mean that play ends once that score
is achieved. That score is only a minimum needed
to have the opportunity to continue on another job.
DEVELOPMENT NOTES:
-----------------
Pipe Graphics -- As you will probably notice, a lack of
color is a big problem in trying to sort
out what you have laid out. Having 8x8
pipe bitmaps was a cornerstone of my
design so enlarging them for better
resolution would be difficult and probably
restrict the grid size unduly.
Randomness -- Just how random is S-CHIP's random generator?
You will probably notice that the cross pipe
comes up more often than the others. True. It
is twice as likely to be chosen than any of
the others. Another design fluke. However,
being the one true symmetrical piece, it
will be the most useful to get often.
H. Piper! was written using the excellent compiler Chipper.
I will make the source available if there is any interest.
Be forewarned. I am a pretty sloppy coder. There is
much room for improvement in efficiency.
ACKNOWLEDGEMENTS:
----------------
CHIP-48 is (C) Copyright 1990 Andreas Gustafsson.
- Many, many thanks to the one who started it all.
Chipper is (C) Copyright 1990 Christian Egeberg.
- It is amazing that with such a great compiler
as this, there are so few CHIP games out there.
SUPER-CHIP is (C) Copyright 1991 Erik Bryntse
- Never be satisfied with limitation.
ASC-> is written by William C Wickes.
Happy plumbing!
-----( cut here - beginnning of ASC )----------------------------
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------( cut here - end of ASC )---------------------------------
SCORE program to get score from user flags set after exiting
the H. Piper! program with the [SPC] key.
\<< RCLF 2 GET DUP # FFh
AND SWAP # 100h /
# 64h * + B\->R
RCLF 2 # 0h PUT
STOF \>>
Thats it. Enjoy!
Paul
--
Paul Raines
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!vapsppr
Internet: vapsppr@prism.gatech.edu