ref: b5ffbfe2af79c7176688db60a7a0ae099733f8b5
parent: 7167895612387ce676c4e3606cac07101719ee2f
author: Remy Oukaour <remy.oukaour@gmail.com>
date: Thu Dec 28 07:58:18 EST 2017
Specify which bugs are needed for backwards compatibility
--- a/docs/bugs_and_glitches.md
+++ b/docs/bugs_and_glitches.md
@@ -56,6 +56,8 @@
## Thick Club and Light Ball can decrease damage done with boosted (Special) Attack
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=rGqu3d3pdok&t=450))
This is a bug with `SpeciesItemBoost` in [engine/battle/effect_commands.asm](/engine/battle/effect_commands.asm):
@@ -90,6 +92,8 @@
## Metal Powder can increase damage taken with boosted (Special) Defense
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=rGqu3d3pdok&t=450))
This is a bug with `DittoMetalPowder` in [engine/battle/effect_commands.asm](/engine/battle/effect_commands.asm):
@@ -146,6 +150,8 @@
## Belly Drum sharply boosts Attack even with under 50% HP
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=zuCLMikWo4Y))
This is a bug with `BattleCommand_BellyDrum` in [engine/battle/effect_commands.asm](/engine/battle/effect_commands.asm):
@@ -184,6 +190,8 @@
## Confusion damage is affected by type-boosting items and Explosion/Self-Destruct doubling
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://twitter.com/crystal_rby/status/874626362287562752))
*To do:* Identify specific code causing this bug and fix it.
@@ -191,6 +199,8 @@
## Moves that lower Defense can do so after breaking a Substitute
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=OGwKPRJLaaI))
This bug affects Acid, Iron Tail, and Rock Smash.
@@ -227,6 +237,8 @@
## Counter and Mirror Coat still work if the opponent uses an item
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=uRYyzKRatFk))
*To do:* Identify specific code causing this bug and fix it.
@@ -234,6 +246,8 @@
## A Disabled but PP Up–enhanced move may not trigger Struggle
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=1v9x4SgMggs))
This is a bug with `CheckPlayerHasUsableMoves` in [engine/battle/core.asm](/engine/battle/core.asm):
@@ -259,6 +273,8 @@
## A Pokémon that fainted from Pursuit will have its old status condition when revived
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=tiRvw-Nb2ME))
*To do:* Identify specific code causing this bug and fix it.
@@ -266,6 +282,8 @@
## Lock-On and Mind Reader don't always bypass Fly and Dig
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
This bug affects Attract, Curse, Foresight, Mean Look, Mimic, Nightmare, Spider Web, Transform, and stat-lowering effects of moves like String Shot or Bubble during the semi-invulnerable turn of Fly or Dig.
This is a bug with `CheckHiddenOpponent` in [engine/battle/effect_commands.asm](/engine/battle/effect_commands.asm):
@@ -284,6 +302,8 @@
## Beat Up can desynchronize link battles
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=202-iAsrIa8))
This is a bug with `BattleCommand_BeatUp` in [engine/battle/effect_commands.asm](/engine/battle/effect_commands.asm):
@@ -319,6 +339,8 @@
## Present damage is incorrect in link battles
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
+
([Video](https://www.youtube.com/watch?v=XJaQoKtrEuw))
This bug existed for all battles in Gold and Silver, and was only fixed for single-player battles in Crystal to preserve link compatibility.
@@ -669,6 +691,8 @@
## Dragon Scale, not Dragon Fang, boosts Dragon-type moves
+
+*Fixing this bug will break compatibility with standard Pokémon Crystal for link battles.*
This is a bug with `ItemAttributes` in [items/attributes.asm](/items/attributes.asm):