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1 user currently in Super Mario World hacking:  labmaster |
| Acmlm's Board - I2 Archive - Super Mario World hacking - Three Bowser lightning questions |
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Sukasa Boomboom Error 349857348734534: The system experienced an error. Level: 57  Posts: 19/1981 EXP: 1446921 For next: 39007 Since: 02-06-05 From: *Shrug* Since last post: 6 days Last activity: 1 day |
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| Hey! I was thinking about BMF's pallette to ASM control patch. Is it true that the bowser lightning ASM only change pallette number 0x0? if so, are there any other effects that i should watch out for? Finally, what is the SNES or PC rgb value needed to call the lightning subroutine in a regular level? Any answers would be greatly appreciated!  (edited by Darkflight on 02-07-05 09:56 PM) |
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BMF98567 BLACK HAS BUILT A SILLY DICE-MAZE! GO! Current list of BURNING FURY >8( recipients: - Yiffy Kitten (x2) - Xkeeper Level: 53  Posts: 640/1261 EXP: 1094149 For next: 62970 Since: 03-15-04 From: Blobaria Special Move: Rising Meatloaf Backhand Combo Since last post: 21 hours Last activity: 1 hour |
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Calling the Bowser lightning routine in a normal level won't work, unfortunately...I haven't examined its code, so I don't know what would need to be done in order to make it work. My lightning is all custom code, made from scratch (aside from a random number routine I picked up somewhere), but it's kinda hard-wired into my hack at the moment...no separate custom block/palette ASM yet.  |
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mikeyk Koopa Level: 18 Posts: 32/110 EXP: 25086 For next: 4811 Since: 07-17-04 Since last post: 45 days Last activity: 44 days |
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| Calling the Bowser lightning routine ($03DFCC) does work in a normal level provided that you do not use pallette 0x0, because this pallette gets overwritten by the hard coded Bowser pallette. Besides that limitation, the lightning routine works perfectly. | |||
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Sukasa Boomboom Error 349857348734534: The system experienced an error. Level: 57 Posts: 33/1981 EXP: 1446921 For next: 39007 Since: 02-06-05 From: *Shrug* Since last post: 6 days Last activity: 1 day |
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| Hey! THANKYOU!!!!! I'm thinking of using that in one level which is covered by a storm. Thank you again!  |
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UnsurpassedDarkness Melon Bug Level: 39 Posts: 432/746 EXP: 391555 For next: 13216 Since: 10-29-04 From: Λtlantıs. All your base are belong to us. Since last post: 12 days Last activity: 2 days |
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BMF98567 BLACK HAS BUILT A SILLY DICE-MAZE! GO! Current list of BURNING FURY >8( recipients: - Yiffy Kitten (x2) - Xkeeper Level: 53 Posts: 644/1261 EXP: 1094149 For next: 62970 Since: 03-15-04 From: Blobaria Special Move: Rising Meatloaf Backhand Combo Since last post: 21 hours Last activity: 1 hour |
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Originally posted by mikeykOh...well, that's awesome. I could've sworn somebody had tried it before and it didn't work. |
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Cruel Justice XD Level: 55  Posts: 604/1384 EXP: 1253266 For next: 60923 Since: 03-20-04 From: Darkwoods Penetentiary Since last post: 11 hours Last activity: 7 hours |
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Okay, one thing that always confused me, where the heck do you put the code!?  |
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Smallhacker Green Birdo SMW Hacking Moderator Level: 68  Posts: 1279/2273 EXP: 2647223 For next: 81577 Since: 03-15-04 From: Söderhamn, Sweden Since last post: 10 hours Last activity: 9 hours |
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Originally posted by The_Raven Into a custom block. Program it (in ASM and assemble it, or write the ASM directly as Hex), save as a file, make a new block in Block Tool containing this file and import it to SMW. |
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Xkeeper 2.0 Hammer Brother Again... :P Level: 49  Posts: 210/1091 EXP: 880818 For next: 3065 Since: 03-15-04 Since last post: 5 hours Last activity: 3 hours |
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Originally posted by BMF54123Originally posted by mikeykOh...well, that's awesome. I could've sworn somebody had tried it before and it didn't work. That was me, BMF.  Actually, it worked to an extent but it put all sprites on layer 2, screwed up item reserve and left glitch tiles on the top of the screen. :\ |
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Sukasa Boomboom Error 349857348734534: The system experienced an error. Level: 57 Posts: 38/1981 EXP: 1446921 For next: 39007 Since: 02-06-05 From: *Shrug* Since last post: 6 days Last activity: 1 day |
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| Oh... I guess the lightning routine wouldn't work then. I've been thinking of learning ASM so i could do stuff like this, but I don't know where to get stuff. I'll look around the forums for that. Thanks for telling me the routine doesn't work though. |
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blackhole89 LOLSEALS Moderator of ROM hacking EmuNET IRC network admin Head GM of TwilightRO Level: 47  Posts: 544/971 EXP: 739208 For next: 26995 Since: 03-15-04 From: Dresden/Germany Since last post: 14 hours Last activity: 12 hours |
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| The bowser lightning routine, afaik, seems to attempt inserting the bowser ledge (that castle top thingy you stand on in the last battle) into the OAM, but somehow fails at it. That's what produces the glitches. | |||
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 3183/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| It probably does so without checking to see if OAM is accessible first; if SNES works anything like just about every other system, you can only access it during certain periods while the screen is being redrawn. Otherwise it'll just cause bugs, and of course even if it does succeed it'll muck up everything. ...Perhaps a custom block that triggered this could just back up the OAM somewhere and restore it after the call? I'm pretty sure there's a mirror of it in RAM so timing shouldn't be a major problem, and if it is, the game must have a 'wait for vblank' function somewhere. |
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d4s Panser Level: 29  Posts: 121/325 EXP: 142151 For next: 5734 Since: 03-23-04 Since last post: 13 days Last activity: 1 day |
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Originally posted by HyperHacker while it is true that the vram can only be accessed during vblank on a real snes, this is not the reason its not working. why? because all emulators allow writes to vram outside vblank. this is due to timing issues. besides, the lightning routine wouldnt dare to manually upload to oam-ram. no sane person would do that during gameplay(exception: if vblank is forced while loading a level, for example). theres a buffer for the oam-table in ram wich gets dma'd to oam-ram every frame. add a pointer that points to the last sprite entry in that table and every routine that feels like doing some sprites can write there and update the pointer afterwards. some games double-buffer the oam table and alternate between them each frame. this is also useful if you want to fake more than 128 sprites onscreen. the tradeoff is sprite flickering, of course. modifying the oam-table midframe using normal irqs or hdma is more elegant, but not always possible.(very few cycles executable during hblank and sprites mustnt overlap the scanline where the table is modified) (edited by d4s on 02-11-05 01:07 PM) (edited by d4s on 02-11-05 01:08 PM) (edited by d4s on 02-11-05 01:09 PM) |
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