Can you stop the ants invading Benny's bermudas?
Benny is being attacked by a horde of marauding
ants intent on invading his Bermuda shorts! His only defence is to
stamp on them, but he is fighting a losing battle. It is only a
matter of time before he is overcome by sheer weight of numbers and
suffers the ultimate indignity. How long can he hold out?
Ants In Your Pants makes use of page flipping for
the movement of Benny's legs. His legs are controlled with a
joystick and there are seven different leg positions, each position
stored on a different screen. The movement is achieved by displaying
screens according to the position of the joystick. If you read my
article on page flipping in Page 6 issue 25 you should be able to
follow the program, the initialization is very similar to 'Bouncing
Bert'.
Player missile graphics are used for the ants
because they are independent of page flipping. The screen colours
for sky, grass and the flashing title line are implemented using a
display list interrupt created with DLI Maker, which was published
in Analog No.38.
If you have trouble typing in the control
characters in lines 840 to 850 then listing 2 will create them for
you. Be sure to save the program before you run it because it will
delete itself from memory, just leaving the required lines. After
running you should be left with just lines 840, 845 and 850. LIST
those lines to cassette or disk then ENTER them into the main
program. I have included a checksum which should catch any errors in
the DATA statements.
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