add trainer party override

src/field/trainer.ts

@@ -263,6 +263,17 @@ export default class Trainer extends Phaser.GameObjects.Container {
     let ret: EnemyPokemon;
 
     this.scene.executeWithSeedOffset(() => {
+      if (Overrides.TRAINER_PARTY_OVERRIDE?.length) {
+        ret = this.scene.addEnemyPokemon(
+          getPokemonSpecies(Overrides.TRAINER_PARTY_OVERRIDE[index % Overrides.TRAINER_PARTY_OVERRIDE.length]),
+          level,
+          !this.isDouble() || !(index % 2)
+            ? TrainerSlot.TRAINER
+            : TrainerSlot.TRAINER_PARTNER
+        );
+        return;
+      }
+
       const template = this.getPartyTemplate();
       const strength: PartyMemberStrength = template.getStrength(index);
 

src/overrides.ts

@@ -123,6 +123,17 @@ class DefaultOverrides {
    * Force enemy AI to always switch pkmn
    */
   readonly TRAINER_ALWAYS_SWITCHES_OVERRIDE: boolean = false;
+  /**
+   * Force enemy trainer battles to always pick pkmn in this order.  If the
+   * trainer would have more Pokemon than in the array, it will wrap around to
+   * the beginning.  If the trainer would have less Pokemon than in the array,
+   * it will ignore the extras.
+   *
+   * Has no effect on wild battles. Only affects newly generated trainers (eg,
+   * won't work on a saved trainer wave). OPP_SPECIES_OVERRIDE and other OPP_
+   * overrides will supercede this value.
+   */
+  readonly TRAINER_PARTY_OVERRIDE: Species[] = [];
 
   // -------------
   // EGG OVERRIDES