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MVcellicom's d20 tools - Rolls a D20 with animation and text

BMM_Archive · July 15, 2026

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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: cellicom's d20 tools - Rolls a D20 with animation and text
  • Original author: cellicom
  • Original date: March 22, 2023
  • Source thread: https://forums.rpgmakerweb.com/threads/cellicoms-d20-tools-rolls-a-d20-with-animation-and-text.156052/
  • Source forum path: Game Development Engines > RPG Maker Javascript Plugins > JS Plugin Releases (RMMV)

Summary

Hi to all, I have developed a plugin for myself, but I think it might be useful to someone. cellicom's d20 tools RPG Maker MV Plugin

Archived First Post

Hi to all,
I have developed a plugin for myself, but I think it might be useful to someone.

cellicom's d20 tools
RPG Maker MV Plugin
cellicom​

Features
● Roll a d20 and return the result (and store it in a variable)
● Show an animation or text (or both) during the roll.
● Roll a d20 with advantage or disadvantage (Dnd rules)
● Check if passed an ability check

How to use
PREREQUISITES:
Animations: This plugin can also work without animations, but to give
a "magic touch" to the plugin I suggest you activate them.
YOU MUST CREATE 20 animations consecutive in your database
starting from number 1 up to number 20.
Recommended duration 120 frames, but it is not mandatory.
You can use anything you want, I used a red rolling d20.


// roll a d20 - all parameters should be true or false
// return the result (1-20)
// cellicom.d20.roll(showAnimation, showText)
JavaScript: 
cellicom.d20.roll()
cellicom.d20.roll(true, true)

// roll a d20 with advantage or disadvantage - all parameters should be true
// or false
// return the lower result if isDisadvantage is true, otherwise the higher
// cellicom.d20.rollWithAdvantage(showAnimation, showText, isDisadvantage)
JavaScript: 
cellicom.d20.rollWithAdvantage()
cellicom.d20.rollWithAdvantage(true, true, false)

// enable cheat for only next roll - rolled will be the result (1-20)
// cellicom.d20.activateCheat(rolled)
JavaScript: 
cellicom.d20.activateCheat(20)
cellicom.d20.roll(true, true)

All roll function return an integer value of the result of the roll, so you
can use it if you want manipulate or check after the roll.
Ex. an ability check or some else.
// ability check - bonus can be positive or negative
// return if the rolled dice plus an optional bonus is higher of the check
// rolled can be number or undefined, if undefined become getLastRoll (see below)
// cellicom.d20.abilitycheck(check, bonus, rolled)
JavaScript: 
if (cellicom.d20.abilityCheck(17, 3, cellicom.d20.roll())) {
    //passed
} else {
    //not passed
}
if (cellicom.d20.abilityCheck(17, 3)) {
    //passed
} else {
    //not passed
}

// get last roll - ONLY if save is activated on VariableID. Otherwise return 0.
// return the value of the last result
// cellicom.d20.getLastRoll()
JavaScript: 
if (cellicom.d20.abilityCheck(15, -1, cellicom.d20.getLastRoll())) {
    //passed
} else {
    //not passed
}

How to Install
- Copy the script file into your project's /js/plugins/ folder.

Plugin
Get it here

Screenshot
ezgif.com-resize.gif


Credit and Thanks
- cellicom


Terms
Free to use in any RPG Maker MV project including commercial. Credit are appreciated

Enjoy!

Features Mentioned

Downloads / Referenced Files

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License / Terms Note

Credit and Thanks - cellicom Terms Free to use in any RPG Maker MV project including commercial. Credit are appreciated

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