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MVMV Battle Engine Fix (patch for YEP_BattleEngineCore)

BMM Archive · July 15, 2026

Preserved forum archive. This topic stores the original first post and locally mirrored RPG Maker Web attachments when available. It is posted by the BMMPlay archive account, not by the original creator.

Original Source

  • Original title: MV Battle Engine Fix (patch for YEP_BattleEngineCore)
  • Original author: Kemezryp
  • Original date: October 14, 2023
  • Source thread: https://forums.rpgmakerweb.com/threads/battle-engine-fix-patch-for-yep_battleenginecore.162012/
  • Source forum path: Game Development Engines > RPG Maker Javascript Plugins > JS Plugin Releases (RMMV)

Summary

Hiya~ I've been working in RPG Maker MV for a while. We all know that Yanfly's plugins are so good they're practically essential. But, Battle Engine has some issues when it comes to front view battles. Especially the lag/delay caused by default action sequences optimized for side view. It's amazing how many finished games I've seen without this fix... So, I've prepared few fixes to the engine and merged them into one plugin! behold... Battle Engine Fix

Archived First Post

Hiya~
I've been working in RPG Maker MV for a while. We all know that Yanfly's plugins are so good they're practically essential. But, Battle Engine has some issues when it comes to front view battles. Especially the lag/delay caused by default action sequences optimized for side view. It's amazing how many finished games I've seen without this fix... So, I've prepared few fixes to the engine and merged them into one plugin!
behold...

✨Battle Engine Fix✨
by Kemezryp & Caethyril​
Introduction
Currently, there are 4 fixes in the plugin. You can turn them on and off to your liking~

- Optimize Target Selection -
The 'whiten' function is usually used to indicate the enemy is about to make a move; it's a blink. Using it as a constant whitening of an object makes it really laggy, especially if your enemy sprite is big.
Updating NW.js reduced this lag to none, but optimization never hurts!

- Cannot Move States Fix -
When making a stun state, it's important to make it last a specific amount of turns. Setting it to Turn End would cause it to restrict a battler an additional turn if applied before their move in a turn. This option fixes the Action End timing for movement restriction states!

- Front View Delay Fix -
Battle Engine Core has built-in action sequences. The default sequences will always take the time to play step animations, even if they're visible only in side-view. Because of that, front-view feels slow. This option Removes the delays and the enemy attack sound because of its bad timing.

- Reimplement Enemy Animation -
By default, enemies will blink and make a sound before using a skill. Battle Engine removes this for the sake of side-view battles. This option adds them back with fixed, default timing.

How to Use
It's plug and play really. Place it under YEP_BattleEngineCore and you should be good. If there are any problems caused by the plugin, turn off its functions one by one and see if it fixes your issue. If there are compatibility problems with the function you want to use, feel free to ask for help~

Terms of Use
These fixes are just simple edits. Credits are nice but not required.

Changelog
1.1 - Fixed a bug for Cannot Move States Fix, causing states with Action End without move restriction going down by 2 instead of 1.
1.0 - Released.

Download
GitHub

Happy RPG Making~!✨

Downloads / Referenced Files

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License / Terms Note

Terms of Use These fixes are just simple edits. Credits are nice but not required. Changelog 1.1 - Fixed a bug for Cannot Move States Fix, causing states with Action End without move restriction going down by 2 instead of 1.

Creator Claims / Removal

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