PRODUCTION LINE
BY PAUL STOCKLEY - FOR THE 48K SPECTRUM
from Personal Computer Games Jan'85

Okay, so just WHAT'S going on out there? How come all you readers have
suddenly started sending in these red-hot listings? If you want to see
just how good you're getting, type in this excellent game from Paul
Stockley.

Production Line is a platform game in the grand tradition, with moving
platforms, monsters, pistons, and a whole host of game features to
keep you busy. You must guide Fred the workman around the production
line collecting doobries. The doobries, just in case you're not
familiar with these essential items of industrial equipment, are
coloured cyan.

The listing is in two parts. First type in Listing 1 and SAVE it with
the line SAVE "Production" LINE 5. Then type in Listing 2 and SAVE it,
using SAVE "Line" LINE 10. To RUN the program, rewind the tape and
enter LOAD"" as normal. Please note that you will be asked to stop the
tape when the intro screen comes up on the display, so don't go away
while the game's loading!

When typing in the game, enter any underlined letters in graphics
mode. Graphics mode is selected by pressing SHIFT/9, whereupon you
will see the cursor change to a flashing 'G'. You can return to normal
mode by pressing SHIFT/9 again. Just in case you're confused by u$ in
line 160 of listing, it consists of two spaces, two graphics 3's, and
a final space. Good luck!

Main variables

A       Vertical position of stompers
X,Y     Position of man
LI      Lives
LE      Skill levels
SC      Score
OBJ     Objects collected
U$      Platform string
R$      Parcel string

Program breakdown

10      Set-up screen etc
15-60   Main loop
65-75   Up ladder routine
80-95   Down ladder routine
100-110 Jump routine
115-130 Move stompers, platforms etc
135     Death routine
145     End of game
155     Finished sheet routine
160     Set up strings for movement
170-220 Print screen
225     Set-up variables
1000    Fall routine
1020    Decrease lives