steam learn: speedrun et tas
TRANSCRIPT
26th of February 2015
Speedrun and Tool Assisted Speedrun
by Pierre Trouve
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HORS SERIE
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Table of contents
● Speedrun
● Tool Assisted Speedrun
● Speedrun and TAS
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Speedrun : what is it ?
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How can I create new challenges on game I master ?
Scoring Best rank Finished the game as fast as
possible ?
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Speedrun : what is it ?
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Okay, but what games ?
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Speedrun : some definitions
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● Run : a try to finish the game
● Runner (or Speedrunner) : the one who do the run
● Glitch : A game bug, which can be used to go faster
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Speedrun : examples
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Super Mario Bros4 min 58
Super metroidany% 44 min100% 1h17min
GTA vice city1h28m33
Final Fantasy IX9h05m45
(Seriously guys ?)
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Speedrun : planification & execution
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How do I go fast ?
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Speedrun : planification & execution
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Planification Execution
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Speedrun : The route planning
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Know your game
● Objects● Enemy patterns● All accessibles
techniques● ...
Know your glitches
● Out of Bounds● Wrong warp● Take damage to save time● Memory glitches
Easy... I’m stuck, lol !
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Speedrun : Route planning
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Easy... I’m stuck, lol !
Super metroid map GTA mission graph
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Speedrun : Perfect route problem
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Easy...
Chance of success
1/10
Same 4 times
(1/10)^4 chances
That means...
10x10x10x10 runs to success !!!
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Speedrun : Perfect route problem
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Easy...
Planification Execution
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Speedrun : Multi segment & scripts
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● The run is not done in one time, but multiple segments
● The run can redo the same segment until it’s perfect
Chances to success are no longer 10 x 10 x 10 x 10 but
10 + 10 + 10 +10 !
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Speedrun : Multi segment & script
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Easy...
Scripts can be used to play a macro of inputs with one single button
1m35
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Speedrun : planification & execution
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Planification Execution
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TAS: Tool assisted speedrun
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TAS: What does it look like
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Crazy example at 15:20
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TAS : examples
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Super Mario Bros4 min 584 min 57 s 31
Super metroidany% 44 min100% 1h17minany% 38min 41100% 1h08
GTA vice cityNO TAS (No emulator...)
Final Fantasy IX9h057h37
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TAS: What is it ?
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● A Tool Assisted Speedrun is a speedrun made on emulator
● The output is not a video, but a sequence of input
00 : ------------01 : ----------S-02 : ------------03 : ------------04 : --L---------05 : -D----------06 : -DL-A------- //Shoryuken07 : ------------08 : ------------09 : ------------10 : ------------
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TAS: Frame advance & savestate
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à partir de 17:00
Save statesave the whole RAM state. possibility to save and reload.
Frame Advance Possibility to pause the game and to advance frame by frame
you can play very well (perfectly)
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TAS: RAM Watch - the true power
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à partir de 17:00
● Read the ram at every frame
● Possibility to watch values
● Understand how the game really works (-> abuses)
● Creation of a ram map
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TAS: Luck manipulation
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● Random does not exist !
● If the same inputs are played, the result of a random generation will be the same (almost always true...)
● If a result does not fit you, change your inputs
● You can experiment, or use ram watch to understand how the luck is computed => Reverse engineering
“God does not play dice” Einstein
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Speedrun & Tas : TAS = cheated SR ?
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● Aims are differents : ○ Speedrun is a tribute to human habilities. The
uncertain fate of the run brings emotions ○ TAS is more a lock for absolute, a playfield to drive
a game into the corner
● Both have a common purpose : Entertainment !
● The two disciplines collaborates together.
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Speedrun & Tas : Best friends ?
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● TAS is a vast experimental field. Tassers are scientists who will define the theorical horizon of the game
● Speedrun will try to exploit TAS discoveries to create new strategies and routes. Collaboration exemple at 4:55
TAS defines that a skip was possible in this area, doing a movement from precise position
Speedrunners know the perfect position then, and try to create a set up to reach this position.
More example in the commented speedrun right after ;).
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Thanks
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● Coeur de Vandale & Realmyop, leaders of “Speed game” and “88mph”
https://www.youtube.com/user/RealMyop
● My favorites runners :○ AM (Resident Evil 4, Maximo, Metroid Prime)○ Santzo84 (Dark souls)○ Cosmo (Zelda 64, others zelda, castlevania 64)○ Mister MV (Duck Tales, Super meat boy, etc...)
● The two main websites○ Speed run : http://speeddemosarchive.com/○ TAS : http://tasvideos.org/
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And thanks you !!!
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Any questions ?
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