I made a complete game map, for 100% planning http://i.imgur.com/KD56h2N.png
Get key while dropping down.
Unfortunately, you won't get the Yoshi egg, so it's too slow.
Doing it like in the gif is only 20-30 frames faster exit than Save&Quit.
I found a suitable route change, see below.
I'm a good 2 seconds ahead in the TAS.
______
Old route:
- Ice (get Yoshi egg - used in Desert)
- Desert (get Lightning - used in Fun Fair)
- Fun Fair (get Lightning - used in Grass)
- Grass
- Bowser's Castle
New route:
- Ice (get Yoshi egg - used in Desert)
- Grass
- Desert (get Lightning - used in Fun Fair)
- Fun Fair (get Lightning - used in Bowser's Castle 3 fly-guys room)
- Bowser's Castle
Not using Fun Fair's Lightning in Grass costs 2.5 seconds, but you will get the 3-fly-guys star immediately, which should save 7 seconds back.
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$14AC and $14B0 possible values / achieved fastest how:
0x000000
0x00000A
F1: L
F2: L
F3: L
F4:
F5:
F6:
F7:
0x0AAAA8
F1: L
F2:
0x0AAAB2
F1: L
F2: L
F3: L
F4:
F5:
F6:
0x155550
F1: L
0x15555A
F1: L
F2: L
F3: L
F4:
F5:
0x1FFFF8
F1: L
F2: L
F3:
0x200002
F1: L
F2: L
F3: L
F4:
0x2AAAA0
F1: L
F2: L
0x2AAAAA
F1: L
F2: L
F3: Lpossible values:
13: None
10: Down
11: Start Credits
12: Title Screen
0: UpLeft
1: Up
2: UpRight
3: World Select12: Mini
19: Normal
28: BigPossible values:
0: Doesn't Exist
1: Normal
2: Open
3: Opening
4: ClosingPossible values:
0: No
1: Yes
(1) Move the ball 7F before it reaches inside the flipper's area of effect for the first time.
(2) Save state A.
(3) Try different inputs so the flipper collides with ball in different ways
(Previously I considered only the 10 possible flipper positionings (called "altitude" before)
but we should consider how the ball is hit, from positioning A in one frame to positioning B in the next frame - refered to as "velocity" above.)
After the tried input, brute force for as long as the ball is still inside the flipper.
(2^10 is only 1024 tries for 10 frames of trying pressing or not pressing the flipper, so this is ok.)
After the ball leaves the flipper's area of effect, check if we reached a new scenario (ball in different position, different speed, etc.) and if yes, save state B.
After the flipper last collides with the ball, there should be no more input.
(4) For each saved state B, let ball reach to 7F before any flipper and repeat from (1)
or if there is less than 7F before reaching the next flipper, rewind to state A in read-only and let it run to 7F before the next flipper from there,
repeat from (1) while replicating the input of the previous flipper.
---
After each frame, check winning conditions. Examples:
- Star key count increased
- Exit reached
After each frame, check losing conditions. Examples:
- Ball reached an undesired transition (i.e. wrong exit)
- Star count below a certain pre-set after certain frame count
- Door to the next room closed after certain frame count
- Fastest record time exceeded
- Ball is too far up in the room after a certain framecount - meant to reduce on unnecessary attempts where ball is not going to be near the exit
- Ball is too low in the room after a certain frame count - meant to reduce on unncessary attempts where ball is not going to be near the exit
- Enemy not hit after certain frame count
- Yellow Coins lower than certain pre-set after certain frame count
- Blue Coins lower than certain pre-set after certain frame count
- (...)
If winning condition is reached and it beats the previous fastest time, then save a state and update the fastest time variable (that is checked by "losing condition: fastest record time exceeded"). Then discard the current attempt.
If losing condition is reached, discard the current attempt.
| Possible Flipper Altitude | No. | Achieved by |
| 0x000000 | 01 | - - - - - - - - - - - L - - L L L - - - - - |
| 0x00000A | 02 | L L L - - - - |
| 0x02AAAA | 03 | Achievable after screen freeze while flipper is 0x0AAAA8 |
| 0x02AAB4 | 04 | Achievable after screen freeze while flipper is 0x2AAAAA Achievable after screen freeze while flipper is 0x0AAAB2 |
| 0x055554 | 05 | Achievable after screen freeze while flipper is 0x000000 |
| 0x05555E | 06 | Achievable after screen freeze while flipper is 0x00000A |
| 0x0AAAA8 | 07 | - - - - - L - - - L L - - - |
| 0x0AAAB2 | 08 | - L L L - - - |
| 0x0D5552 | 09 | Achievable after screen freeze while flipper is 0x0AAAA8 Achievable after screen freeze while flipper is 0x155550 |
| 0x0D555C | 10 | Achievable after screen freeze while flipper is 0x2AAAAA Achievable after screen freeze while flipper is 0x15555A |
| 0x0FFFFC | 11 | Achievable after screen freeze while flipper is 0x000000 |
| 0x100006 | 12 | Achievable after screen freeze while flipper is 0x00000A |
| 0x155550 | 13 | - - - - - - L - - - L L - - |
| 0x15555A | 14 | - - L L L - - L L L - - - - L |
| 0x17FFFA | 15 | Achievable after screen freeze while flipper is 0x0AAAA8 Achievable after screen freeze while flipper is 0x1FFFF8 |
| 0x180004 | 16 | Achievable after screen freeze while flipper is 0x2AAAAA Achievable after screen freeze while flipper is 0x200002 |
| 0x1AAAA4 | 17 | Achievable after screen freeze while flipper is 0x000000 Achievable after screen freeze while flipper is 0x0AAAA8 |
| 0x1AAAAE | 18 | Achievable after screen freeze while flipper is 0x00000A Achievable after screen freeze while flipper is 0x0AAAB2 |
| 0x1FFFF8 | 19 | - - - - L L - - - - - L - L |
| 0x200002 | 20 | - - - L L L - L L L - - - L |
| 0x22AAA2 | 21 | Achievable after screen freeze while flipper is 0x0AAAA8 Achievable after screen freeze while flipper is 0x2AAAA0 |
| 0x22AAAC | 22 | Achievable after screen freeze while flipper is 0x2AAAAA |
| 0x25554C | 23 | Achievable after screen freeze while flipper is 0x000000 Achievable after screen freeze while flipper is 0x155550 Achievable after screen freeze while flipper is 0x1FFFF8 |
| 0x255556 | 24 | Achievable after screen freeze while flipper is 0x00000A Achievable after screen freeze while flipper is 0x15555A |
| 0x2AAAA0 | 25 | - - - - - L L |
| 0x2AAAAA | 26 | - - - - L L L |
1)
If necessary, advance so far that it takes no more than 10 frames for the ball to be in reach of a flipper.
Now, determine all possibilities for a first collision:
- Dumb brute force: For that flipper, try all of the 10 inputs (mentioned in a previous post) after
delaying for 0 to 3 frames and try appending "let go" and "hold" frames.
- Maybe better way: Narrow down on the inputs we want to test based on the ball's trajectory relative to the flipper.
For each result, try an additional "let go" or "hold" frame to determine
if there is a collision on the next frame, too. (2 consecutive collisions)
- If the ball is above the flipper, try an additional "hold" frame.
- If the ball is below the flipper, try an additional "let go" frame.
2)
For any scenario fetched in 1), if the ball is going to be in reach of the other flipper in the next 10 or so frames,
then adjust the other flipper's altitude (try all 10 inputs - or as many as we can fit in before the ball collides).
For each resulting scenario, check identifying information from a text file and if it already exists, discard it.
If it doesn't exist yet, save the new scenario:
- Save state
- Save identifying information in the text file (framecount, ball's position and speed, flipper altitudes)
3)
Delete savestate used in 1).
4)
For all new scenarios saved in 2), repeat with 1)For example:
- Flipper A hits the ball at frame 1000. It was a let go frame and its altitude was 0x200002.
- Flipper B bounces the ball back so it is in reach of flipper A again at frame 1003.
- Find all possible altitudes that can be reached in 2 frames from 0x200002 and then add a "Let go" or a "Hold" frame
for the frame the collision happens.