C64 action / adventure game
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bg Fix shotgun ammo count in the guard booth. Feb 19, 2018
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Makefile
README.md Update site address. Apr 27, 2017
actor.s
actordata.s
ai.s Add a generic raster split mechanism, use it for the title screen & i… Feb 2, 2016
aidata.s Combat robots drop parts if player has full ammo of their weapon. Net… Feb 12, 2016
aligneddata.s V1.2 modifications. Enemies drop more ammo, down+fire while ducking f… Feb 9, 2018
backupsaves.bat
boot.s Old tunnels section. Dec 26, 2015
bullet.s Fix safe mode loader IRQ disable. Make high walkers spawn metal piece… Feb 11, 2018
charset00.s
charset01.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
charset02.s
charset03.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
charset04.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
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charset06.s
charset07.s
charset08.s
charset09.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
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charset11.s
charset12.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
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charset14.s Initial rewritten simple stateless pathfinding (no ladders or jumping… Sep 22, 2015
charset15.s
emptysave.s
enemy.s
file.s Work on the endsequence. Remove alternate Construct speech before fin… Feb 4, 2016
hessian.seq
hessiand81.seq
hessiansid.s Update year in the sid. Feb 12, 2016
init.s More optimal & shorter loader from Steel Ranger codebase. Feb 11, 2018
input.s Minor optimizations. Oct 11, 2015
intro.s More optimal & shorter loader from Steel Ranger codebase. Feb 11, 2018
item.s If player has consumables selected and picking up a weapon while carr… Sep 2, 2016
itemdata.s
kernal.s
ldepack.s
ldepacksym.txt Use the same Exomizer code for depacking the loader and for later fil… Dec 10, 2015
letter.s Convert the second cutscene to a full screen "letter" display. Feb 1, 2016
level.s
loader.s
loadsym.txt
logo.s
macros.s
main.s
maked81.bat
math.s
memory.s
options.s Reorganize variables around the aligned data. Try having only 4 diffi… Feb 3, 2016
panel.s Minor world data edit. Text edits & text display scripts size optimiz… Jan 25, 2016
paneldata.s
physics.s Old tunnels lab & related scripts. Do not spawn water splash for item… Jan 17, 2016
player.s Debounce check for walk -> roll transition. Feb 11, 2018
raster.s
restoresaves.bat Flashing cursor on monitors in the hideout charset. Added bat files t… Feb 7, 2016
savelist.s
screen.s
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script00.s
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script02.s Reduce number of separate script files to optimize diskspace. Jan 27, 2016
script03.s Word edit. Feb 8, 2016
script04.s
script05.s
script06.s Restore the higher sniper rifle ammo cost. Feb 18, 2018
script07.s
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script09.s Further dialogue tweaks. Feb 11, 2018
script10.s
script11.s
script12.s Further dialogue tweaks. Feb 11, 2018
script13.s
script14.s Fix typo. May 1, 2016
script15.s
script16.s
script17.s
script18.s Fix missing H & B letter flashing during the tunnel machine ride. 1 s… Feb 10, 2016
script19.s When NPCs enter the old tunnel lab, put the trigger for it to the sid… Feb 7, 2016
script20.s
script21.s
script22.s
script23.s
script24.s
sound.s Work on cutscene playback. Remove unnecessary code. Jan 31, 2016
sounddata.s
sprite.s
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upgrade.s
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weapondata.s

README.md

Hessian

Multidirectionally scrolling sideview action / adventure game for the Commodore 64. Strongly similar to the Metal Warrior series. Check the code only at your own risk, as it will contain gameplay and story spoilers!

Technical details:

  • 50Hz screen update with NTSC compatibility
  • 8-directional scrolling with color per each char
  • 24 sprite multiplexer
  • Realtime sprite depacking for all sprites, using a sprite cache
  • Dynamic memory allocation for sprites & level data
  • NinjaTracker V2.03 music & sound playback
  • Loader based on the CovertBitops Loader V2.24 (1541/1581/FD/HD/IDE64)
  • Exomizer2 compression

"Kim, a night security guard working at Throne Group Science Complex wakes up in an improvised emergency operating room. She remembers multiple hostiles opening fire on the staff, everything fading to black as rounds hammer into her chest.. and finally voices: 'Massive trauma.. need artificial circulation.. prepare the nanobot injection now!'"

See also CovertBitops homepage.

Code license

Program code (.s files excluding story/dialogue text), tool code & build scripts are licensed under the MIT license:

Copyright (c) 2006-2016 Lasse Öörni

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Content license

Graphics, levels, music, sound effects, story/dialogue text is copyright (c) 2012-2016 Lasse Öörni except the song "nether.sng" (c) 2013 Péter Nagy-Miklós. All rights reserved.