Meta-map script activation: Difference between revisions

Meta-map script activation (view source)

Revision as of 03:30, 26 August 2019

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Clarified that "walking lag" is just one of the effects of meta-map script activation.

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Revision as of 04:05, 29 July 2019 (view source) >Sherkel mNo edit summary ← Older edit		Revision as of 03:30, 26 August 2019 (view source) >Bbbbbbbbba (Clarified that "walking lag" is just one of the effects of meta-map script activation.) Newer edit →
Line 2: {{Bulbapedia2\|0 ERROR}} '''Meta-map script activation''' refers to a set of [[glitch]]es in {{RBY}}. These glitches will modify the "meta-map script" associated with a certain map, which is a special map script used to execute code on particular maps (one byte for each map). An example of a meta-map script is one that sets the event in Pallet Town where Professor Oak stops the player from walking into the grass. It is disabled later thanks to the game changing the ID of the meta-map script later.▼ '''Meta-map script activation''', previously known as the '''walking lag glitch''', '''0 ERROR''', and '''Zero Error''' (due to error codes that may appear during the text box matching method,) refers to a set of [[glitch]]es in {{RBY}}. ~~These glitches will modify the 'meta-map script' associated with a certain map, which is a special map script used to execute code on particular maps (one byte for each map).~~ Unlike the temporary map scripts stored at D36E-D36F, meta-map scripts are usually permanent unless the script itself changes the meta-map script ID to a different value. They are also specific to each map, unlike the D36E-D36F address that is a pointer to anywhere in the current bank in the ROM, or RAM. Therefore, if an invalid meta-map script causes a map (e.g. a route, a level of a cave) to become glitchy, it will persist even if the player leaves the map, and saves and resets the game. IfSeveral avariations ~~meta-map script activation glitch is activated with~~of the [[Trainer escape glitch]], itcan modify the meta-map script ~~will~~in beunintended ~~activated~~ways on the location that the player escaped from the Trainer.▼ ▲An example of a meta-map script is one that sets the event in Pallet Town where Professor Oak stops the player from walking into the grass. It is disabled later thanks to the game changing the ID of the meta-map script later. One of the most characteristic effects of meta-map script activation is the '''[[#"Walking_lag" effect\|walking lag effect]]''', also known as '''0 ERROR''', or '''Zero Error''' (due to an error code that appears in a text box when the player brings up the start menu). Apart from making the player wait a long time between steps (hence the name "walking lag") and the error code, glitchy sound effects and game freezes may also happen, depending on the player's coordinates and time spent on the map. ▲If a meta-map script activation glitch is activated with the [[Trainer escape glitch]], it will be activated on the location that the player escaped from the Trainer. <!-- If the player loses, a text box may appear before the player is sent back to their black out location. --> <!-- Without context it's hard to understand what this is trying to say. -->▼ ~~==Effects==~~ Exploiting this glitch may also cause lag before the player can take their next step (hence the name "walking lag glitch"). Sound effects may also be played with the lag or the game may freeze, depending on the player's coordinates and time spent on the map. ~~The glitch causes the route to become glitchy, and it will remain like that even when the player leaves the route and save and resets the game.~~ ▲If the player loses, a text box may appear before the player is sent back to their black out location. Certain invalid meta-map scripts also allow for [[arbitrary code execution]]. ==Activation== The glitch can be pulled off by three variations of the [[Trainer escape glitch]].