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Upload literally everything from the pokecrystal16 expand-move-ID branch

engine/battle/ai/redundant.asm

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+AI_Redundant:
+; Check if move effect c will fail because it's already been used.
+; Return z if the move is a good choice.
+; Return nz if the move is a bad choice.
+	ld a, c
+	ld de, 3
+	ld hl, .Moves
+	call IsInArray
+	jp nc, .NotRedundant
+	inc hl
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	jp hl
+
+.Moves:
+	dbw EFFECT_DREAM_EATER,  .DreamEater
+	dbw EFFECT_HEAL,         .Heal
+	dbw EFFECT_LIGHT_SCREEN, .LightScreen
+	dbw EFFECT_MIST,         .Mist
+	dbw EFFECT_FOCUS_ENERGY, .FocusEnergy
+	dbw EFFECT_CONFUSE,      .Confuse
+	dbw EFFECT_TRANSFORM,    .Transform
+	dbw EFFECT_REFLECT,      .Reflect
+	dbw EFFECT_SUBSTITUTE,   .Substitute
+	dbw EFFECT_LEECH_SEED,   .LeechSeed
+	dbw EFFECT_DISABLE,      .Disable
+	dbw EFFECT_ENCORE,       .Encore
+	dbw EFFECT_SNORE,        .Snore
+	dbw EFFECT_SLEEP_TALK,   .SleepTalk
+	dbw EFFECT_MEAN_LOOK,    .MeanLook
+	dbw EFFECT_NIGHTMARE,    .Nightmare
+	dbw EFFECT_SPIKES,       .Spikes
+	dbw EFFECT_FORESIGHT,    .Foresight
+	dbw EFFECT_PERISH_SONG,  .PerishSong
+	dbw EFFECT_SANDSTORM,    .Sandstorm
+	dbw EFFECT_ATTRACT,      .Attract
+	dbw EFFECT_SAFEGUARD,    .Safeguard
+	dbw EFFECT_RAIN_DANCE,   .RainDance
+	dbw EFFECT_SUNNY_DAY,    .SunnyDay
+	dbw EFFECT_TELEPORT,     .Teleport
+	dbw EFFECT_MORNING_SUN,  .MorningSun
+	dbw EFFECT_SYNTHESIS,    .Synthesis
+	dbw EFFECT_MOONLIGHT,    .Moonlight
+	dbw EFFECT_SWAGGER,      .Swagger
+	dbw EFFECT_FUTURE_SIGHT, .FutureSight
+	db -1
+
+.LightScreen:
+	ld a, [wEnemyScreens]
+	bit SCREENS_LIGHT_SCREEN, a
+	ret
+
+.Mist:
+	ld a, [wEnemySubStatus4]
+	bit SUBSTATUS_MIST, a
+	ret
+
+.FocusEnergy:
+	ld a, [wEnemySubStatus4]
+	bit SUBSTATUS_FOCUS_ENERGY, a
+	ret
+
+.Confuse:
+	ld a, [wPlayerSubStatus3]
+	bit SUBSTATUS_CONFUSED, a
+	ret nz
+	ld a, [wPlayerScreens]
+	bit SCREENS_SAFEGUARD, a
+	ret
+
+.Transform:
+	ld a, [wEnemySubStatus5]
+	bit SUBSTATUS_TRANSFORMED, a
+	ret
+
+.Reflect:
+	ld a, [wEnemyScreens]
+	bit SCREENS_REFLECT, a
+	ret
+
+.Substitute:
+	ld a, [wEnemySubStatus4]
+	bit SUBSTATUS_SUBSTITUTE, a
+	ret
+
+.LeechSeed:
+	ld a, [wPlayerSubStatus4]
+	bit SUBSTATUS_LEECH_SEED, a
+	ret
+
+.Disable:
+	ld a, [wPlayerDisableCount]
+	and a
+	ret
+
+.Encore:
+	ld a, [wPlayerSubStatus5]
+	bit SUBSTATUS_ENCORED, a
+	ret
+
+.Snore:
+.SleepTalk:
+	ld a, [wEnemyMonStatus]
+	and SLP_MASK
+	jr z, .Redundant
+	jr .NotRedundant
+
+.MeanLook:
+	ld a, [wEnemySubStatus5]
+	bit SUBSTATUS_CANT_RUN, a
+	ret
+
+.Nightmare:
+	ld a, [wBattleMonStatus]
+	and a
+	jr z, .Redundant
+	ld a, [wPlayerSubStatus1]
+	bit SUBSTATUS_NIGHTMARE, a
+	ret
+
+.Spikes:
+	ld a, [wPlayerScreens]
+	bit SCREENS_SPIKES, a
+	ret
+
+.Foresight:
+	ld a, [wPlayerSubStatus1]
+	bit SUBSTATUS_IDENTIFIED, a
+	ret
+
+.PerishSong:
+	ld a, [wPlayerSubStatus1]
+	bit SUBSTATUS_PERISH, a
+	ret
+
+.Sandstorm:
+	ld a, [wBattleWeather]
+	cp WEATHER_SANDSTORM
+	jr z, .Redundant
+	jr .NotRedundant
+
+.Attract:
+	farcall CheckOppositeGender
+	jr c, .Redundant
+	ld a, [wPlayerSubStatus1]
+	bit SUBSTATUS_IN_LOVE, a
+	ret
+
+.Safeguard:
+	ld a, [wEnemyScreens]
+	bit SCREENS_SAFEGUARD, a
+	ret
+
+.RainDance:
+	ld a, [wBattleWeather]
+	cp WEATHER_RAIN
+	jr z, .Redundant
+	jr .NotRedundant
+
+.SunnyDay:
+	ld a, [wBattleWeather]
+	cp WEATHER_SUN
+	jr z, .Redundant
+	jr .NotRedundant
+
+.DreamEater:
+	ld a, [wBattleMonStatus]
+	and SLP_MASK
+	jr z, .Redundant
+	jr .NotRedundant
+
+.Swagger:
+	ld a, [wPlayerSubStatus3]
+	bit SUBSTATUS_CONFUSED, a
+	ret
+
+.FutureSight:
+; BUG: AI does not discourage Future Sight when it's already been used (see docs/bugs_and_glitches.md)
+	ld a, [wEnemyScreens]
+	bit 5, a
+	ret
+
+.Heal:
+.MorningSun:
+.Synthesis:
+.Moonlight:
+	farcall AICheckEnemyMaxHP
+	jr nc, .NotRedundant
+
+.Teleport:
+.Redundant:
+	ld a, 1
+	and a
+	ret
+
+.NotRedundant:
+	xor a
+	ret