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Document a bug where Teleport cannot fail for wild Pokémon

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Rangi 2020-02-28 11:17:58 -05:00
parent 447da80615
commit 0cce00cb73
2 changed files with 22 additions and 4 deletions
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20
docs/bugs_and_glitches.md
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@ -30,6 +30,7 @@ Some fixes are mentioned as breaking compatibility with link battles. This can b
- [A Disabled but PP Up–enhanced move may not trigger Struggle](#a-disabled-but-pp-upenhanced-move-may-not-trigger-struggle)
- [A Pokémon that fainted from Pursuit will have its old status condition when revived](#a-pokémon-that-fainted-from-pursuit-will-have-its-old-status-condition-when-revived)
- [Lock-On and Mind Reader don't always bypass Fly and Dig](#lock-on-and-mind-reader-dont-always-bypass-fly-and-dig)
- [Wild Pokémon can always Teleport regardless of level difference](#wild-pokémon-can-always-teleport-regardless-of-level-difference)
- [Beat Up can desynchronize link battles](#beat-up-can-desynchronize-link-battles)
- [Beat Up works incorrectly with only one Pokémon in the party](#beat-up-works-incorrectly-with-only-one-pokémon-in-the-party)
- [Beat Up may fail to raise Substitute](#beat-up-may-fail-to-raise-substitute)
@ -693,6 +694,25 @@ This bug affects Attract, Curse, Foresight, Mean Look, Mimic, Nightmare, Spider
```
## Wild Pokémon can always Teleport regardless of level difference
**Fix:** Edit `BattleCommand_Teleport` in [engine/battle/move_effects/teleport.asm](https://github.com/pret/pokecrystal/blob/master/engine/battle/move_effects/teleport.asm):
```diff
.loop_enemy
call BattleRandom
cp c
jr nc, .loop_enemy
srl b
srl b
cp b
- ; This should be jr c, .failed
- ; As written, it makes enemy use of Teleport always succeed if able
- jr nc, .run_away
+ jr c, .failed
```
## Beat Up can desynchronize link battles
*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*

6
engine/battle/move_effects/teleport.asm
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@ -66,10 +66,8 @@ BattleCommand_Teleport:
srl b
srl b
cp b
; This does the wrong thing. What was
; probably intended was jr c, .failed
; The way this is made makes enemy use
; of Teleport always succeed if able
; This should be jr c, .failed
; As written, it makes enemy use of Teleport always succeed if able
jr nc, .run_away
.run_away
call UpdateBattleMonInParty