vapsppr@prism.gatech.EDU (Paul Raines) (05/19/91)
Below you will find the game H. Piper! for Erik Bryntse's new
Super-CHIP. This probably not the super game you were hoping
for, Erik, but it has only been three days. The only feature
this game takes advantage of is the higher screen resolution.
It in ASC form so just cut it out, download, and run ASC->
on it.
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 a 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)
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 don't.
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
up to 99. If the score goes over 99, the displayed
score rolls over. However, upto 255, the full
score is kept in memory.
Once a job is over, the score earned is added to
the grand total and displayed on the screen shown
after (SPACE) is pressed. This total has two parts.
The first part before the two periods is the total
up to 255. The second part is the number of times
the total rolled over. Therefore to get the real
total, multiply the second part by 256 and add the
first part. (Note: Sorry about this method, but I
haven't worked out the preferred way yet.)
If the game is over, the word OVER will be displayed
above the score and the (DEL) key must be pressed
to exit. Else, 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,....
DEVELOPMENT NOTES:
-----------------
Grid Pointers -- determining the best method to mimick the
mouse cursor of the arcade game was the
trickest conceptual problem. Having
cross-hairs on the grid would be possible
but extremely difficult to implement. I
will work at it if enough people complain.
Total Score -- I am no binary mathematician. If someone
can show me a way to display a decimal
number of greater than 255, I would be
much obliged.
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) ---------------------------------------------------------
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-- (cut here) ---------------------------------------------------------
--
Paul Raines
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!vapsppr
Internet: vapsppr@prism.gatech.edu