pokeemerald-expansion/FEATURES.md

What features are included?

Table of Contents

• What features are included?
  • Table of Contents
  • Configuration files
  • Upgraded Battle Engine
  • Full Trainer customization
  • Pokémon data
  • Interface improvements
  • Engine improvements
  • Overworld improvements
  • Developer tools

Configuration files

A lot of features listed below can be turned off as desired. Check which ones in these files

• AI config
• Battle config
• Caps config
• Debug config
• DexNav config
• General config
• HGSS Pokédex config
• Item config
• NPC Follower config
• Overworld config
• Pokémon config
• Save config
• Species enabled
• Summary screen config

Upgraded Battle Engine

• Battle gimmicks: Mega Evolution, Primal Reversion, Ultra Burst, Z-Moves, Dynamax, Gigantamax and Terastallization.
• Newer game battle types: Double Wild Battles, custom Multi Battles, Inverse Battles, 1v2/2v1 battles, Sky Battles.
• Updated battle mechanics: Critical capture, Frostbite support, Poké Ball quick menu, Move description menu, no badge boosts, Gen 4 Fog, obedience, Affection, Party swap upon catch, move effectiveness in battle, FRLG/Gen4+ whiteout money calculation, Gen 4-style shadows.
• Updated move data: Fairy/Stellar types, Physical/Special split, flags.
• Updated calculations: Damage, experience, mid-turn speed, end-battle stats and EVs, Level 100 EVs.
• Every item, ability and move effect up to Gen IX: Includes contest data up to SwSh (source).
• Initial battle conditions: Stat stages, battle terrain, Wild AI flags.
• Faster battles: Simultaneous HP reduction, shortcut to "Run" option, faster battle intro, faster HP drain, faster AI calculations.
• Easier customization: Cleaner codebase to implement custom moves and effects.
• Improved AI: Faster and considers new effects added by Expansion.
• Popular features: Level/EV Caps, Sleep Clause, Type Indicators.

Full Trainer customization

• Compatible with Pokémon Showdown's team syntax: Create your trainer teams in the teambuilder and paste the results!
• Custom Pokémon data: Nicknames, EVs, IVs, Moves, Abilities, Poké Balls, Friendship, Nature, Gender, Shininess, Dynamax level, Gigantamax Factor and Tera Type.
  • "Ace Pokémon": Will save a specific Pokémon for last.
  • Trainer Pools: A trainer may get a pool of randomized Pokémon instead of set teams.
• Custom sliding trainer messages: First Turn, landing a super-effective hit, before Mega Evolution, etc.
• New AI Flag options: Customize the intelligence of your trainers.
• Trainer class Poké Balls: Divers use Dive Balls, Breeders use Nest Balls, etc.

Pokémon data

• Improved Pokémon Data structure: Optimized space to allow fitting more information, such as Tera type, 12-character names, Hyper-trained stats, evolution conditions, saved HP/status effect.
• Updated breeding mechanics: Poké Ball/Egg Move/Ability/Nature inheritance, Level 1 eggs automatic incense babies.
• Updated species data: Stats, Types, Abilities, Hidden Abilities, Egg Groups, EV Yields, movesets, Battle Facility bans, guaranteed perfect IV counts, ORAS Dex numbers.
• Simpler species data manipulation:: Only requires to edit ~5 files instead of vanilla pokeemerald's 20+ to add a new Pokémon.
• Updated sprites: DS-style sprites with support for Emerald's 2-frame animations and gender difference.
• Species toggles: You can disable specific groups of Pokémon to save space, including families, cross-gen evolutions, Mega Evolutions, Regional forms, etc.
• Revamped Evolution System: Multiple Evolution conditions can be stacked in order to create complex methods without additional coding. Every condition except Affection and console gyroscope is supported.
• Form Change System. Most form changes can be added without additional coding. This includes support for: Holding/using an item, HP thresholds being met, weather change in and/or out of battle, Fusions, and more.

Interface improvements

• Pokémon Summary: Move relearner, EV/IV checks, Nature colors (feature branch by @DizzyEggg).
• Party Menu: "Move Item" option.
• Pokémon Storage System: Move option as default, access from Box Link item.
• HGSS-style Pokédex (original feature branch by @TheXaman): Detailed in-game information accessible to players.

Engine improvements

• All base pokeemerald bugfixes implemented by default: Anything under the BUGFIX define.
• Improved sprite and palette compression: Assets use less space than vanilla compression.
• Modern compiler support: Detect potential errors in your code more easily.
• Dynamic Multichoice (original branch by @SBird1337): Easier way to add multiple-choice menus for scripting.
• High-Quality RNG: No more broken vanilla RNG.

Overworld improvements

• Modern Mechanics: Defog field move, B2W2+ Repel system, Running indoors, Removed field poison, Chain fishing, VS. Seeker, FRLG+ whiteout message.
• Overworld and Follower Pokémon (feature branch by @aarant)
  • Includes Dynamic overworld palettes (DOWP) and Overworld Expansion for event IDs beyond 255.
  • Includes Pokémon sprites up to Generation IX.
• Day/Night System: (feature branch by @aarant)
  • Includes support for non-real time clock.
• NPC Followers: (feature branch by @ghoulslash)
• BW Map Pop-ups (feature branch by @BSBob)
• XY Berry Mechanics: Mutations, moisture, weeds, pests.
• Obtained Item descriptions (feature branch by @ghoulslash).

Developer tools

• Integrated Testing: Pinpoint if your custom mechanics have broken something else in the game or not.
• Pokémon Sprite Visualizer: Test every Pokémon sprite and animation.
• Overworld debug menu (original feature branch by @TheXaman): Support menu with an assortment of features to facilitate debugging, including warping, flag and var toggling, Pokémon and item generation and more.
• Battle Debug Menu: Modify data on the fly in the middle of a battle.
• Learnset Helper: Autogenerate movesets from your custom TM and Tutor data based on official compatibility data.
• Configurable script flags: Disabling Wild encounters, Disabling Trainer battles, Forcing/Disabling Shinies.
• Saveblock Cleansing (feature branch by @ghoulslash)