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In Final Fantasy Tactics, Auto-Potion is a reactive effect that makes characters utilize the lowest level health Potion they have available whenever they have taken direct damage. This way, they can consistently mitigate damage. Here’s how to recreate that effect in RPG Maker MV!

You can find the copy/paste version of the code here: 

Place these notetags into your Auto-Potion skill’s notebox. Change the values in red to fit your game’s settings!

// Make this skill react as a counter to anything.
<Counter Condition>
</Counter Condition>

<Custom Requirement>
// Set the original condition to false.
value = false;
// If the user is an actor...
if (user.isActor()) {
  // Create an array of valid potions the counter can use.
  var potions = [];
  // Add the ID's of the potions that can be used for Auto-Potion.
  potions.push(1, 2, 3, 4);
  potions.push(5, 6, 7, 8);
  // Loop through each of the potion ID's.
  for (var i = 0; i < potions.length; ++i) {
    // Get the current ID.
    var id = potions[i];
    // If the party has this potion in its item bag...
    if ($gameParty.numItems($dataItems[id]) > 0) {
      // ...then set the value to true.
      value = true;
      // ...and break the loop.
      break;
    }
  }
// If the user isn't an actor...
} else {
  // ...then the condition is automatically fulfilled.
 value = true;
}
</Custom Requirement>

<After Eval>
var potions = [];
potions.push(1, 2, 3, 4);
potions.push(5, 6, 7, 8);
for (var i = 0; i < potions.length; ++i) {
  var id = potions[i];
  if ($gameParty.numItems($dataItems[id]) > 0) {
    var item = $dataItems[id];
    if (user.isActor()) {
      $gameParty.loseItem(item, 1);
    }
    this.setItem(id);
    var text = '<CENTER>' + user.name() + ' uses \\i[' + item.iconIndex + ']' + item.name + '!';
    BattleManager.addText(text);
    break;
  }
}
</After Eval>

<setup action>
display action
action effect
</setup action>

Inside of the Auto-Potion state’s notebox, place these notetags. Change the values in red to fit your game’s settings:

// This is the ID of the Auto-Potion counter skill.
<Counter Skills: 24>
// This is the number of times the user can use Auto-Potion per turn.
<Counter Total: +20>

Happy potions!

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