sn8k Posted December 22, 2020 Share Posted December 22, 2020 (edited) Hooked on Nexion 3D, trying to get to the last level. Cannot stop playing. It dawns on me, this could easily be AVP in the right hands......not mine, because you know......I know nothing in the technical department, just how to play the games Same corridor style fps between games. I get the same kind of vibe playing both. Title screen needs to be changed Droids should be changed to Xenomorphs and to a darker tone of color if possible. When its in front of you instead of being head on like the droids when they appear, can look at you from a slight angle to get the overall shape of head , claws, and legs Keys should resemble ID cards, something simple. Rectangles, with square in one corner. Anything that can vaguely pass off as a card Keyholes changed to key slots, same design just keyhole on box becomes a line instead. I thought having an actual working FPs game on 2600 would be a bigger deal around here. Nexion doesn't just work. It works very well. Ive gotten so used to the game by now, I rely on the bottom map less and less. It was crucial in the beginning to get used to the orientation of everything but am getting good at just watching the main screen now. I can't be the only one who thinks this is cool. If there is something simple like tile layer , I may try this myself, I dont know what you guys use to hack Atari games. Edited December 22, 2020 by sn8k 3 Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 22, 2020 Author Share Posted December 22, 2020 Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 22, 2020 Author Share Posted December 22, 2020 Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 22, 2020 Author Share Posted December 22, 2020 (edited) It is complete Edited January 15, 2021 by sn8k Better logo Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 22, 2020 Author Share Posted December 22, 2020 You know you want this on cart. 3 Quote Link to comment Share on other sites More sharing options...
4ever2600 Posted December 23, 2020 Share Posted December 23, 2020 You or whomever decides to hack, may want to get the permission of the author of that homebrew prior. At least as a courtesy if nothing else. Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 25, 2020 Author Share Posted December 25, 2020 On 12/23/2020 at 4:53 PM, 4ever2600 said: You or whomever decides to hack, may want to get the permission of the author of that homebrew prior. At least as a courtesy if nothing else. He was the first person I asked. He isnt around too often though. 1 Quote Link to comment Share on other sites More sharing options...
Arenafoot Posted December 29, 2020 Share Posted December 29, 2020 On 12/23/2020 at 3:53 PM, 4ever2600 said: You or whomever decides to hack, may want to get the permission of the author of that homebrew prior. At least as a courtesy if nothing else. On 12/25/2020 at 6:10 AM, sn8k said: He was the first person I asked. He isnt around too often though. I sent him a FB PM so he can read this thread. Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 29, 2020 Author Share Posted December 29, 2020 3 hours ago, Arenafoot said: I sent him a FB PM so he can read this thread. That would be awesome. Worst case scenario he says no. Best case scenario he says this is the greatest idea and he will get to work on it lol Tried messing around with a sprite editor, I suck major ass at this. 1 Quote Link to comment Share on other sites More sharing options...
TheMajorHavoc Posted December 29, 2020 Share Posted December 29, 2020 (edited) Hey sn8k. AVP 2600 is an awesome idea! I'll add the following once I can dig up the sourcecode. title screen change droids - Xenomorphs Keys - maybe a trophy xeno skulls (?) keycards blaster - shoulder cannon targeting reticle doors - maybe stairs down (?) key slot doors. ending screen change Keycards for a colony setting, but what about an ancient pyramid like the movie? Edited December 29, 2020 by TheMajorHavoc 1 Quote Link to comment Share on other sites More sharing options...
sn8k Posted December 29, 2020 Author Share Posted December 29, 2020 1 hour ago, TheMajorHavoc said: Hey sn8k. AVP 2600 is an awesome idea! I'll add the following once I can dig up the sourcecode. title screen change droids - Xenomorphs Keys - maybe a trophy xeno skulls (?) keycards blaster - shoulder cannon targeting reticle doors - maybe stairs down (?) key slot doors. ending screen change Keycards for a colony setting, but what about an ancient pyramid like the movie? That sounds bad ass. Collecting skulls as keys? Genius. I dont know what can or cant be done in terms of the systems technical capabilities. It would be cool if there was a character select screen and you could choose Marine, Predator, or Xeno like in the Jaguar version. All characters weapons perform the same, so they all shoot. Marine has the shotgun as is, predator gets Shoulder cannon, and Xeno morph has his claw. All operate the same way to keep it easy. Everything shoots, even the claw. Marine fights Xenos and collects cards. Predator fights Xenos and collects skulls. Xeno fights Marines and collects eggs. To me that sounds perfect, but I have no idea how hard it is to do or if it can or cant be done. If limitations are what I feel they may be, then just the predator up against Xeno morphs with your suggested changes. They sound amazing. If its possible and the system allows it, all 3 would make it 100% inline with the jaguar version. But if it had to be only Predator, I would be more than happy with just that. Im so excited right now. Its happening and my new favorite game is about to get even better. Thanks for looking into it Quote Link to comment Share on other sites More sharing options...
TheMajorHavoc Posted January 12, 2021 Share Posted January 12, 2021 (edited) I present to you - Alien vs Predator - 2600 . *****updated ROM 1-13-21 title screen delay solid playfield medals added for progression I added some code to animate the aliens. Sn8K I think you'll approve This version has a styling to the playfield graphics I thought would add to the horror theme Grab the Xeno skull and find the door to the next trial!AVP-2600_BK_011321.bin striped playfield ver :AVP-2600_striped_BK_011321.bin You will gain a new honor medal every 4 levels indicated in the lower left corner of the screen Get them all! Controlling the predator: up - walk in the direction you are facing back - walk backwards Left and right - rotate (change direction) fire button+ down to shoot fire button+ Left or right to walk sideways top of screen is the compass - it will blink in the direction you are facing (N-S-E-W) bottom of screen is the map - your position is indicated by the white square. When you kill enough Xenos, a skull will drop on the level. it will blink on the map when you get near. touch it a press fire button to pick it up It will allow you to exit to the next level.....when you find the door middle of screen is the 3d view. shoot xenos when they are in front of you. Xenomorphs make a lot of noise when they see you. If you hear them. change directions because it's headed for you! They like to hunt in packs! PLAY HINTS : Xenos spawn in the 4 corners of the level. They will respawn there also, so don't try to make a last stand in those areas! If you a getting eaten alive by a pack of aliens, run backwards Best hint is to find the door on each level 1st. Edited 9 hours ago by TheMajorHavoc Edited January 15, 2021 by TheMajorHavoc 4 Quote Link to comment Share on other sites More sharing options...
Skwrl63 Posted January 12, 2021 Share Posted January 12, 2021 It was playing goofy on my emulator. A lot of screen flickering and I'm not sure what exactly to control. I seem to be controlling the square on the bottom of the screen but my joystick controls were inconsistent. For example, if I held the fire button down and press the right. Sometimes the square would move right, other times it would move up, and other times it would move in a circle ??♂️ It could just be my emulator that I'm using on my Android but I don't know. Quote Link to comment Share on other sites More sharing options...
sn8k Posted January 12, 2021 Author Share Posted January 12, 2021 THIS LOOKS SICK! Will report back soon. Quote Link to comment Share on other sites More sharing options...
TheMajorHavoc Posted January 12, 2021 Share Posted January 12, 2021 (edited) 3 hours ago, Skwrl63 said: It was playing goofy on my emulator. A lot of screen flickering and I'm not sure what exactly to control. I seem to be controlling the square on the bottom of the screen but my joystick controls were inconsistent. For example, if I held the fire button down and press the right. Sometimes the square would move right, other times it would move up, and other times it would move in a circle ??♂️ It could just be my emulator that I'm using on my Android but I don't know. Yes it's definitely the emulator. Runs perfect on real hardware From what I've researched , the SC ram is not being emulated properly In Stella if this occurs, emulation settings "randomize zero-page and extended RAM" is enabled Edited January 12, 2021 by TheMajorHavoc 1 Quote Link to comment Share on other sites More sharing options...
+stephena Posted January 12, 2021 Share Posted January 12, 2021 4 hours ago, TheMajorHavoc said: From what I've researched , the SC ram is not being emulated properly In Stella if this occurs, emulation settings "randomize zero-page and extended RAM" is enabled This discussion has occurred many times in the past. If you have a ROM that behaves differently whether this option is on or off, it's a strong indication that you're not doing initialization in your code correctly. Just because it runs without issue on one console doesn't mean it will on another. So you shouldn't be depending on that behaviour. This feature was added to Stella specifically to find such cases, and indicate to the programmer that there could be future issues on other consoles. So while turning it off in Stella may make it run, the correct approach is to fix the ROM. 1 Quote Link to comment Share on other sites More sharing options...
sn8k Posted January 12, 2021 Author Share Posted January 12, 2021 2 hours ago, stephena said: This discussion has occurred many times in the past. If you have a ROM that behaves differently whether this option is on or off, it's a strong indication that you're not doing initialization in your code correctly. Just because it runs without issue on one console doesn't mean it will on another. So you shouldn't be depending on that behaviour. This feature was added to Stella specifically to find such cases, and indicate to the programmer that there could be future issues on other consoles. So while turning it off in Stella may make it run, the correct approach is to fix the ROM. It works on my 7800 and 2600 jr flawlessly. Quote Link to comment Share on other sites More sharing options...
TheMajorHavoc Posted January 12, 2021 Share Posted January 12, 2021 2 hours ago, stephena said: This discussion has occurred many times in the past. If you have a ROM that behaves differently whether this option is on or off, it's a strong indication that you're not doing initialization in your code correctly. Just because it runs without issue on one console doesn't mean it will on another. So you shouldn't be depending on that behaviour. This feature was added to Stella specifically to find such cases, and indicate to the programmer that there could be future issues on other consoles. So while turning it off in Stella may make it run, the correct approach is to fix the ROM. Thanks for chiming in on this Stephen! Have removed the striped playfield already in play testing. I'll see what I need to do to initialize it properly in Batari basic. Quote Link to comment Share on other sites More sharing options...
+stephena Posted January 13, 2021 Share Posted January 13, 2021 4 hours ago, sn8k said: It works on my 7800 and 2600 jr flawlessly. These are but two variations of all the systems out there. We've seen this before; code that works flawlessly on one system has issues on another. To be compatible everywhere, you really should zero out your RAM, if that's what the rest of your code is expecting. 1 Quote Link to comment Share on other sites More sharing options...
chewy Posted January 13, 2021 Share Posted January 13, 2021 ohhhhhhhhh! ok will load now!!!!!!!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
chewy Posted January 13, 2021 Share Posted January 13, 2021 is it okay if i rename my cart file: NeXion2- alienVpredator.bin? Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 13, 2021 Share Posted January 13, 2021 4 hours ago, stephena said: These are but two variations of all the systems out there. We've seen this before; code that works flawlessly on one system has issues on another. To be compatible everywhere, you really should zero out your RAM, if that's what the rest of your code is expecting. Exactly. We designed the developer options to point out typical programming errors which may lead to problems on real consoles. Quote Link to comment Share on other sites More sharing options...
sn8k Posted January 13, 2021 Author Share Posted January 13, 2021 8 hours ago, stephena said: These are but two variations of all the systems out there. We've seen this before; code that works flawlessly on one system has issues on another. To be compatible everywhere, you really should zero out your RAM, if that's what the rest of your code is expecting. All I stated was that it works on the rainbows. I get it. Quote Link to comment Share on other sites More sharing options...
TrekMD Posted January 13, 2021 Share Posted January 13, 2021 This looks very impressive. Quote Link to comment Share on other sites More sharing options...
TheMajorHavoc Posted January 13, 2021 Share Posted January 13, 2021 16 hours ago, stephena said: These are but two variations of all the systems out there. We've seen this before; code that works flawlessly on one system has issues on another. To be compatible everywhere, you really should zero out your RAM, if that's what the rest of your code is expecting. Stephen, I Zeroed out RAM , but it still occurs with the striped playfield. Quote Link to comment Share on other sites More sharing options...
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