Tweaking: Difference between revisions

[[File:Tweaking glitch chunk error.png|thumb|right|An example of a tweak where a visibly incorrect chunk is loaded. Note that no Pokémon will be encountered here]]

All maps in [[Generation IV]] are broken up into square "sections" or "chunks" 32 tiles by 32 tiles across. At any given time, only four sections are loaded and visible: the section the player is currently in as well as two sections orthogonally away and one diagonally away, depending on which {{wp|Quadrant (plane geometry)|quadrant}} of the current section the player is in. (For example, if the player is standing in the northwest quadrant of their current section, the sections to the north, west, and northwest will be loaded.) "Load lines" exist halfway across each section at the boundaries between quadrants, so named because when the player crosses over one, the sections in that direction are loaded into memory, while the sections behind the player are unloaded. Each quadrant is 32 by 32 tiles and only 8 can be loaded at one time. Through this, the overworld appears seamless.

The distortion caused by tweaking can be solved easily by crossing a load line away from the distortion, causing it to unload. When the section is loaded again, it will be normal. It can also be solved by looking at a different menu screen such as the Pokédex; upon closing out of the menu, the areas will be properly reloaded.

"31213" (fast bike, Platinum and HG/SS): Causes the section east of the player to fully (visibly) load onto the section west of the player. This pattern causes a crash in Diamond and Pearl because of a difference in bike speeds.

Depending on the layout of a section, it may be possible to tweak in such a way so as to load a walkable area (either black or visible) onto a section that does not normally contain walkable surfaces. This allows for a number of shortcuts, such as skipping [[Tohjo Falls]] and therefore {{HM|07|Waterfall}} in {{game|HeartGold and SoulSilver|s}} by loading a walkable area onto the section where the [[ledge]] on [[Route 27]] would normally be. In sections containing buildings that are blocked off by NPCs, it is possible to enter them by tweaking a Z-axis change, allowing the player to walk under or over the tile the NPC would normally occupy. Two examples of minor shortcuts or sequence breaks using this method include obtaining access to [[Mystery Gift]] in {{game2|Diamond|Pearl|Platinum}} before the first badge by bypassing the clown blocking the [[Jubilife TV]] front door, and completing [[Azalea Gym]] before [[Slowpoke Well]] by bypassing the [[Team Rocket]] Grunt in front of the Gym (though this by itself does not allow Slowpoke Well or Rocket Executive [[Proton]] to be skipped entirely, since the game does not trigger the {{p|Farfetch'd}} event that gives the player {{HM|01|Cut}} unless Proton has been defeated).

As part of the paths to access Darkrai and Shaymin, the player is required to save the game in the void, so the same risks associated with the [[Surf glitch]] occur here, such as becoming trapped without a method of escape. It is also possible for, in the worst possible circumstance, the game to immediately freeze upon loading the save file, forcing a new game to be started. This can be tested for however by opening and closing an option on the menu such as the bag (usually referred to as a Black Screen Of Death test), as the game will freeze upon closing the selected menu option, preventing your save from being damaged.

Other notable areas known to be accessible through this glitch include the [[Hall of Fame]], {{p|Giratina}}'s room in Turnback Cave, [[Valor Cavern]], [[Acuity Cavern]], the second to last room in [[Galactic HQ]], [[Spear Pillar]] and any route, town or city in the game either by using Fake Sinnohs or the Battle Tower void.

After the discovery of the Darkrai and Shaymin paths, it was believed (though not conclusively proven) that the [[Hall of Origin]] was inaccessible through this glitch, as it is a closed-off indoor area without a single accessible entry warp, thereby making it almost impossible to safely locate in the void compared to outdoor areas and indoor areas with many warps such as [[Turnback Cave]]. It was also known that, unlike Newmoon Island and Flower Paradise, simply finding the Hall of Origin would not allow the player to battle {{p|Arceus}}, due to a set of reasons involving map scripts as detailed [[Hall of Origin#Trivia|here]]. Due to the combination of these two factors, it was believed impossible to catch Arceus through the void glitch for several years. A method to find the Hall of Origin was not discovered until January 2017, by relying on relatively extensive methods to be able to dynamically control the layout of areas in the void<ref>http://forums.glitchcity.info/index.php?topic=7770.0</ref>. The [[Pal Park Retire glitch]] was documented soon afterward, allowing the player to manually activate the script that causes the player to challenge Arceus, finally enabling Arceus to be caught. The currently documented method to catch Arceus involves reaching the Hall of Origin map while still in the void; there is currently no documented way to see the full, visible Hall of Origin (the way it appears after using the Azure Flute).

The void glitch, when using the wrong warp method, can also force the player through walls when a certain amount of mistakes are made. This is because traversing the void messes with the RAM. An example would be in Diamond and Pearl. Attempting the wrong warp glitch, but opening the Explorer Kit 3 times instead of 1, would teleport the player to his/her bedroom, and when entering any Pokémon center and going up the left escalator to access its upper part, an invisible force will shove the player into the void outside of the PMC.

| 비틀기 버그<ref>[https://www.youtube.com/watch?v=96mSixWIG0I 비틀기 버그 (Tweaking Glitch) - 관동 스토리 뛰어넘기 <nowiki>[포켓몬스터 4세대]</nowiki>].</ref>