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Cart [#58100#] | Copy | Code | 2018-10-18 | Link
5

UPDATES:

(10-18-18)

-- + now have infinite bombs
-- + time limit now set to
--   60-seconds
-- + fixed to stop all sounds
--   at the end of the game
-- + locked the bomber controls
--   if the player's time is up
-- + added short period of
--   rest when timer reaches
--   zero
-- + added venetian effect
--   before showing final score
--   and values

(10-16-18)
Add tank option to reappear in reverse
Add tank option to go faster than before
Added optional sound effects (see code to disable or press CTRL-M during runtime)

(09-13-18) ... Improved accuracy, should be able to hit tank if on edge of screen now.
(09-12-18) ... Released cart


Back in the early days of Apple ][, Robert C. Clardy and Bill Budge ruled the roost.

Robert C. Clardy for his fantastic INTEGER HIRES and LORES adventure games and Bill Budge for his incredible machine-language games which included, Bomber, as you see the tribute here, but also, Space War, Night Driver, Raster Blaster Pinball, Lunar Lander, and Pinball Construction Set.

He was one of the great pioneers of early video game programmers working directly in the 6502 assembly programming language whereas most other game programmers, myself included, chose to work in the simpler languages of Integer Basic and Applesoft Basic.

Perhaps the one game that struck me the most fascinating as a boy was his 20k machine-language BOMBER game. It was a simple premise. You had one key to press that launched a bomb from your plane that moves from one side of the screen to the next.

What I especially liked was the fact if you watched carefully, and I did, that every single pixel that made up the tank image exploded outward when your bomb contacted the tank. It was a real treat to see as many games back then only dreamed of having fragmentary explosions.

The tank initially started out as half that speed so it was a pretty easy target for the jet. After that, the tank changed speeds which made the game more challenging. That and the tricky curve of the bomb as it starts out slow in its descent and accelerates as it falls.

Here now is my tribute to him and his game, the graphics, mechanics, mathematics, and hopefully physics are very close to what he wrote those many years ago.

With options in the source to change from B&W to color and even add flickering of the sprites which is what his original game had in it.

How many tanks can you hit before the time runs out ?

apple 8-bit 1970 bill_budge particle_explosion
P#56595 2018-09-12 22:46 ( Edited 2018-10-18 14:35)

::

Very cool! I agree that the explosion effect is the most impressive/satisfying part :-) The tanks seem to sometimes "pop in" right in the middle of the X axis though, which means (depending on where the plane is at the time) that some cannot be hit. Is that intentional? NB: I was playing in a browser...

P#56606 2018-09-13 07:41

::

I hadn't realised the same tank keeps going until destroyed (periodic boundary conditions). Neat. But I still think it would be more intuitive if new tanks appeared on the left hand side.

P#56607 2018-09-13 07:52

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Really cool history lesson here too. The explosions are very satisfying, what he said.

P#56609 2018-09-13 09:02

::

Hi guys:

This is a tribute game so it's supposed to run like the original. Only one tank per customer, please. :)

And yes, I'm having a little difficulty in the code where the bomb is on one side of the screen and the tank is in the other - for them to connect.

I made an update that should fix this. If not, feel free to do so yourself and please let me know what you did to make it work !

Will post my update now.

Fuchikoma71, can you please record a video in PICO of this phenomenon happening where the tank blinks ? If you didn't know PICO could record video, let me know and I'll assist. Thanks !

P#56612 2018-09-13 11:14 ( Edited 2018-09-13 11:22)

::

I was wrong, as I tried to explain in my second comment: what I meant is: sometimes the (new) tank cannot be hit before it exits the screen on the right. But since it's re-entering on the left, we're all good! ;-)

P#56650 2018-09-14 06:54

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Hi Fuchikoma71:

Is it still giving difficulties ? Can the tank still be hit on the right-side when it's exiting ?

P#56663 2018-09-14 11:16

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dw817 how do I fix the error you found in My Maze?

P#58010 2018-10-16 13:08

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What error is that, Hendini ? I added scrolling and timer to it, aren't they still working ?

P#58012 2018-10-16 14:03 ( Edited 2018-10-16 15:38)

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yes but you told me about how at the end it doesn't display your time how do I fix that, and still keep the game from stopping?

P#58021 2018-10-16 19:18

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the error you told me about on Sunday.

P#58022 2018-10-16 19:19

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Oh for crying in the mud. Let me see ...

P#58023 2018-10-16 19:19

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also thus far my best has been 7. The explosion is very nice by the way.

P#58024 2018-10-16 19:24

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Hmm ... I've made some changes to it. Might be harder to get 7 now. :)

Not now but later (tomorrow) I was going to remove the limit on bombs and let you fend as well as you can for the timer.

P#58031 2018-10-16 19:29

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>:(

P#58032 2018-10-16 19:34

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Hehe... still got 5

P#58033 2018-10-16 19:42

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New error... it ends randomly...?

P#58034 2018-10-16 19:45

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It ends if you run out of bombs or the time runs out. Prolly tomorrow I'll take out the number of bombs and then its just bomb to your hearts content till timer runs out. May set it to 60-seconds.

P#58042 2018-10-17 00:27

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dw... I need more help with My Maze... Check the post

P#58054 2018-10-17 09:57

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I got 6 again

P#58091 2018-10-18 13:28

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Good deal ! I was working on PAINT but I'll go to update this cart now.

P#58099 2018-10-18 14:03

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