Space Evaders

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Levellass
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Space Evaders

Post by Levellass » Mon Mar 13, 2017 13:24

Happy Keen day everyone from the country that sees it first! This year a little something for everyone built in a 24-hour period last Saturday. There's an annoying movement bug, but otherwise it came out quite well. A space-invaders style Keen 4 mod. It features:

* 99 levels (All the same setup, but differing backgrounds)
* The smallest EGAGRAPH of any Keen 4 mod
* The most compressed levels, a special modification of Abithar being used to squash 67Kb of level into 10Kb of file.
* The most cheats, using a new setup I've put in several mod projects (All unreleased for now, but coming soon...)
* Patching madness

Get it here and give it a whirl: https://dl.dropboxusercontent.com/u/3940020/KEENEV.zip Games are short, but I find it entertaining enough. Hard mode can be a real sod. Enjoy!
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troublesomekeen
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Re: Space Evaders

Post by troublesomekeen » Mon Mar 13, 2017 15:45

Happy Keen Day! Happy 5001st post! Happy gaming!
This is neat. On to Hard mode!
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Quillax
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Re: Space Evaders

Post by Quillax » Mon Mar 13, 2017 16:21

Happy Keen Day! I gave it a couple tries (one on Normal, and the other on Hard), and I thought it was quite fun. :D I'm impressed by how you managed to change a platformer game into a simple shooter game and the fact that it was made in under 24 hours. The cheats were really fun to play around with.

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Roobar
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Re: Space Evaders

Post by Roobar » Mon Mar 13, 2017 16:21

Suburb Shenanigans! Keen day came early!

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Zilem
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Re: Space Evaders

Post by Zilem » Mon Mar 13, 2017 16:38

reminds of me of Invasion of the Space bats of Doom.
and that ending!, i though dosbox was going to crash XD
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Re: Space Evaders

Post by keenmaster486 » Mon Mar 13, 2017 23:26

Hahahaha this is great!!

I love the ending :lol
I flermmed the plootash just like you asked.
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Levellass
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Re: Space Evaders

Post by Levellass » Tue Mar 14, 2017 5:20

After a brief suggestion I have amended the patchfile so that the ending is not so sudden. (All the enemies will be destroyed before the ending plays.)

Did anyone notice all the awesome backgrounds I made? In theory you'll need to play more than a dozen games before you see the same one twice. (Same one, same color that is.)
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Re: Space Evaders

Post by Nisaba » Tue Mar 14, 2017 9:32

I've always thought Keen was playing Paddle War on his Computer Wrist when returning from his latest adventures. I wasn't aware that he was involved in such a space combat. what a star wars.

yikes! F10+Q

I played all levels. ALL of them. all 99!
it's a whole lot of fun messing around with the cheat codes. these aren't just an extra but a vital part of the gameplay.
but I can't manage to extract all the goodies yet. again some heavy patching I assume.
chapeau!
"We have come to conquer you all and bring you lots of candy!" | about me | my current project: play Keen mods on a GameBoy |

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Commander Spleen
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Re: Space Evaders

Post by Commander Spleen » Tue Mar 14, 2017 9:39

Pretty sure I saw the same background with a diagonal teardrop galaxy several times out of a bit more than several... maybe there are subtle colour changes I didn't notice?

Is there meant to a whole ship visible at the bottom or be just a white crescenty thing with a blue semicircle? Seems like a small BWB could have fit down there pretty easily but patching limitations are also a likely scenario.

Anyway, pretty neat. I like the cascading insectsplosions when one gets shot while close to a group of others. I don't like the typos but I'll deal with it I guess. The ending was sufficiently amusing.

A Keen shoot-em-up was always quite an appealing concept to me. I can't help but wonder what this could be turned into in the future, whether by one of us or a future generation of post-human Keeners.

Also, go here to play it within a web browser: http://jimage.org/keen/playmod/keenev.html

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Re: Space Evaders

Post by KeenRush » Tue Mar 14, 2017 13:05

Looks neat, even though i'm not the biggest fan of these kinds of games. I can't even imagine what was patched and how to make something like this.
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SupKeen
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Re: Space Evaders

Post by SupKeen » Tue Mar 14, 2017 13:33

I like it!!!

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Re: Space Evaders

Post by Fleexy » Wed Mar 15, 2017 19:27

Interesting idea! I haven't had time to play it yet, but I certainly will; it looks neat! I am curious: what exactly did you do to get the levels so small? Just eyeballing the GAMEMAPS file contents, it looks unlike any other maps file I've ever seen.

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Levellass
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Re: Space Evaders

Post by Levellass » Fri Mar 17, 2017 8:47

Fleexy wrote:
Wed Mar 15, 2017 19:27
I am curious: what exactly did you do to get the levels so small? Just eyeballing the GAMEMAPS file contents, it looks unlike any other maps file I've ever seen.
The levels have a lot of repetition in their structure, that is they all play identically, only the backgrounds really change. Because of this I built a program that eliminates duplicate planes from a GAMEMAPS file. As such the map file contains 1 sprite plane, 9 foreground images and 9 background tints.
Commander Spleen wrote:
Tue Mar 14, 2017 9:39
Pretty sure I saw the same background with a diagonal teardrop galaxy several times out of a bit more than several... maybe there are subtle colour changes I didn't notice?

Is there meant to a whole ship visible at the bottom or be just a white crescenty thing with a blue semicircle? Seems like a small BWB could have fit down there pretty easily but patching limitations are also a likely scenario.

Anyway, pretty neat. I like the cascading insectsplosions when one gets shot while close to a group of others. I don't like the typos but I'll deal with it I guess. The ending was sufficiently amusing.
Backgrounds are reused with different color tints. I was going for 99 different backgrounds but ran out of time. This is also the reason for the typos and the fact that only the nose of Keen's ship is visible. Given 48 hours things might have been different.

Nisaba wrote:
Tue Mar 14, 2017 9:32
yikes! F10+Q

I played all levels. ALL of them. all 99!
it's a whole lot of fun messing around with the cheat codes. these aren't just an extra but a vital part of the gameplay.
but I can't manage to extract all the goodies yet. again some heavy patching I assume.
chapeau!
I like my cheat selection, I rebuilt the entire cheat code just for laughs.

The patching is actually rather simple, involving Keen and the Dart guns. I could actually lead you through it in about 10 minutes.
What you really need, not what you think you ought to want.

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