Implements Supreme Overlord and fixes Last Respects (#1219)

* Implements Supreme Overlord

Also fixes count for Last Respects

* Add comments

src/battle.ts

@@ -63,6 +63,8 @@ export default class Battle {
   private battleSeedState: string;
   public moneyScattered: number;
   public lastUsedPokeball: PokeballType;
+  public playerFaints: number; // The amount of times pokemon on the players side have fainted
+  public enemyFaints: number; // The amount of times pokemon on the enemies side have fainted
 
   private rngCounter: integer = 0;
 
@@ -89,6 +91,8 @@ export default class Battle {
     this.battleSeedState = null;
     this.moneyScattered = 0;
     this.lastUsedPokeball = null;
+    this.playerFaints = 0;
+    this.enemyFaints = 0;
   }
 
   private initBattleSpec(): void {

src/data/ability.ts

@@ -1083,6 +1083,37 @@ export class LowHpMoveTypePowerBoostAbAttr extends MoveTypePowerBoostAbAttr {
   }
 }
 
+/**
+ * Abilities which cause a variable amount of power increase.
+ * @extends VariableMovePowerAbAttr
+ * @see {@link applyPreAttack}
+ */
+export class VariableMovePowerBoostAbAttr extends VariableMovePowerAbAttr {
+  private mult: (user: Pokemon, target: Pokemon, move: Move) => number;
+
+  /**
+   * @param mult A function which takes the user, target, and move, and returns the power multiplier. 1 means no multiplier.
+   * @param {boolean} showAbility Whether to show the ability when it activates.
+   */
+  constructor(mult: (user: Pokemon, target: Pokemon, move: Move) => number, showAbility: boolean = true) {
+    super(showAbility);
+    this.mult = mult;
+  }
+
+  /**
+   * @override
+   */
+  applyPreAttack(pokemon: Pokemon, passive: boolean, defender: Pokemon, move: PokemonMove, args: any[]): boolean {
+    const multiplier = this.mult(pokemon, defender, move.getMove());
+    if (multiplier !== 1) {
+      (args[0] as Utils.NumberHolder).value *= multiplier;
+      return true;
+    }
+
+    return false;
+  }
+}
+
 export class FieldVariableMovePowerAbAttr extends AbAttr {
   applyPreAttack(pokemon: Pokemon, passive: boolean, defender: Pokemon, move: PokemonMove, args: any[]): boolean {
     //const power = args[0] as Utils.NumberHolder;
@@ -4251,7 +4282,8 @@ export function initAbilities() {
     new Ability(Abilities.SHARPNESS, 9)
       .attr(MovePowerBoostAbAttr, (user, target, move) => move.hasFlag(MoveFlags.SLICING_MOVE), 1.5),
     new Ability(Abilities.SUPREME_OVERLORD, 9)
-      .unimplemented(),
+      .attr(VariableMovePowerBoostAbAttr, (user, target, move) => 1 + 0.1 * Math.min(user.isPlayer() ? user.scene.currentBattle.playerFaints : user.scene.currentBattle.enemyFaints, 5))
+      .partial(),
     new Ability(Abilities.COSTAR, 9)
       .unimplemented(),
     new Ability(Abilities.TOXIC_DEBRIS, 9)

src/data/move.ts

@@ -7508,10 +7508,7 @@ export function initMoves() {
       .attr(ConfuseAttr)
       .recklessMove(),
     new AttackMove(Moves.LAST_RESPECTS, Type.GHOST, MoveCategory.PHYSICAL, 50, 100, 10, -1, 0, 9)
-      .attr(MovePowerMultiplierAttr, (user, target, move) => {
-        return user.scene.getParty().reduce((acc, pokemonInParty) => acc + (pokemonInParty.status?.effect === StatusEffect.FAINT ? 1 : 0),
-          1,);
-      })
+      .attr(MovePowerMultiplierAttr, (user, target, move) => 1 + Math.min(user.isPlayer() ? user.scene.currentBattle.playerFaints : user.scene.currentBattle.enemyFaints, 100))
       .makesContact(false),
     new AttackMove(Moves.LUMINA_CRASH, Type.PSYCHIC, MoveCategory.SPECIAL, 80, 100, 10, 100, 0, 9)
       .attr(StatChangeAttr, BattleStat.SPDEF, -2),

src/phases.ts

@@ -3491,6 +3491,13 @@ export class FaintPhase extends PokemonPhase {
   doFaint(): void {
     const pokemon = this.getPokemon();
 
+    // Track total times pokemon have been KO'd for supreme overlord/last respects
+    if (pokemon.isPlayer()) {
+      this.scene.currentBattle.playerFaints += 1;
+    } else {
+      this.scene.currentBattle.enemyFaints += 1;
+    }
+
     this.scene.queueMessage(getPokemonMessage(pokemon, " fainted!"), null, true);
 
     if (pokemon.turnData?.attacksReceived?.length) {