Posted: 8/11/2015 10:20 PM
Post subject: Prince of Persia 2
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Alyosha
He/Him
Editor, Emulator Coder, Expert player (3822)
Joined: 11/30/2014
Posts: 2832
Location: US
GBA TASer of 2023 Homebrew TAS of 2023 Gameboy TASer of 2022 NES TASer of 2015
I didn't see a topic for this game so I'll make one to keep track of my progress. So far I finished level 1, 30 frames (ignoring emulation differences) ahead of Nitsuja. Nitsuja's movie with the messed up level 1 music is really showing its age, emulation sure has come a long way.
Posted: 8/19/2015 11:17 PM
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Alyosha
He/Him
Editor, Emulator Coder, Expert player (3822)
Joined: 11/30/2014
Posts: 2832
Location: US
GBA TASer of 2023 Homebrew TAS of 2023 Gameboy TASer of 2022 NES TASer of 2015
http://tasvideos.org/userfiles/info/24935710578064211 Here is WIP 1. The only improvement I found is in level 1. I think I'm a few frames ahead in level 2 at the doors, but it is very hard to tell, by now I am a few hundred lag frames behind the original run so am not bothering to sync up Nitsuja's file and just watching the youtube encode. So I will only be keeping track of real obvious time saving improvements, of which so far I only have the 1 in level 1. My guess is that the final run will be up to 30 seconds longer then Nitsuja's
Posted: 8/26/2015 12:24 AM
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Alyosha
He/Him
Editor, Emulator Coder, Expert player (3822)
Joined: 11/30/2014
Posts: 2832
Location: US
GBA TASer of 2023 Homebrew TAS of 2023 Gameboy TASer of 2022 NES TASer of 2015
http://tasvideos.org/userfiles/info/25069960369717055 Done with level 2. I found a 1 second improvement towards the end where Nitsuja is climbing the small platforms. Nitsuja turns around and jumps up platform, then turns back around and jumps across. I step forward and jump up. This is the only improvement I found. You can see it at 3:32 in the published encode. So combined with the level 1 improvement, I am at 1.5 seconds ahead. In actual file length, I am about ~6 seconds of lag behind.
Posted: 8/28/2015 1:36 PM
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Alyosha
He/Him
Editor, Emulator Coder, Expert player (3822)
Joined: 11/30/2014
Posts: 2832
Location: US
GBA TASer of 2023 Homebrew TAS of 2023 Gameboy TASer of 2022 NES TASer of 2015
http://tasvideos.org/userfiles/info/25126562015960098 well finally made it to the end. Not many more improvements overall. In level 3 I manipulate the ghosts slightly better, saving about 0.5 seconds. In level 4 I manipulate an enemy better with 2 sword strikes instead of 1, saving about 1 second. Nothing much changed in level 5. So total about 3 seconds of savings, means that ~16 extra seconds of lag and loading time are in this movie compared to the original. I still need to go over it some more before submitting, but I can't imagine much will change.
Posted: 11/25/2016 6:34 PM
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Challenger
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Skilled player (1689)
Joined: 2/23/2016
Posts: 1061
Sega TASer of 2017 TASer of 2017 NES TAS of 2017
6 years ago, I discovered a new type of ghost glitch hat allows to skip most of the Level 5: http://tasvideos.org/userfiles/info/35187178884407627 It only works in lava, but have to jump enough to touch the lava raised. If it works properly, it will appear that fell into the lava, but actually jumped to the other side. But this bug, is supposed to be dead and can not press switches or move while using the sword (Unlike that ghost glitch of Stage 9, which is possible to activate without fake death, allowing to push switches and uses a sword). In other words, this new bug is caused due of bad collision detection on rising lava. This glitch saves tons of time! (EDIT: 2479 frames saved on Bizhawk). Another thing: During my tries to encounter other locations to activate this new ghost glitch without lava (or fake death), accidentaly I discovered 2 big new shortcuts! One of Stage 6, and other of Stage 7. I discovered these shortcuts two hours ago. Stage 6: http://tasvideos.org/userfiles/info/35234092789957410 EDIT: I tested a different (and faster) stategy than this file, and I saved 1117 frames on Bizhawk. Stage 7: http://tasvideos.org/userfiles/info/35234125916635235 EDIT: Saved 1104 frames. This glitch is only possible on SNES port, if you grab in a wrong position next to a wall. It works in a very some platforms. With these new improvements (4700 frames totally), it's now possible to a new TAS of this game beats on almost 10 minutes! I'll assume this new TAS! EDIT 2 (28/11): Stages 1-6 finished! 4014 frames ahead of Alyosha's published TAS. EDIT 3 (29/11): Here's a WIP: http://tasvideos.org/userfiles/info/35308479530060816 Levels 1-9 finished! 5304 frames ahead of Alyosha's published TAS.
My homepage --Currently not much motived for TASing as before...-- But I'm still working.
Posted: 12/1/2016 2:12 AM
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Challenger
He/Him
Skilled player (1689)
Joined: 2/23/2016
Posts: 1061
Sega TASer of 2017 TASer of 2017 NES TAS of 2017
Tomorrow will be ready the new TAS Prince of Persia 2! And good news: 1 - 6013 frames ahead! (Levels 1-12 Finished) 2 - I just discovered another type of bug that could help to skip both Shadow, Flame and Fake Prince (Jaffar)! EDIT (01/12): Finished this TAS! 6797 frames ahead! New time: 09:18:84 (in Bizhawk).
My homepage --Currently not much motived for TASing as before...-- But I'm still working.