Initial event commit

src/data/mystery-encounters/encounters/the-pokemon-salesman-encounter.ts

@@ -3,7 +3,7 @@ import {
   transitionMysteryEncounterIntroVisuals,
   updatePlayerMoney,
 } from "#app/data/mystery-encounters/utils/encounter-phase-utils";
-import { isNullOrUndefined, randSeedInt } from "#app/utils";
+import { isNullOrUndefined, randSeedInt, randSeedItem } from "#app/utils";
 import { MysteryEncounterType } from "#enums/mystery-encounter-type";
 import { globalScene } from "#app/global-scene";
 import type MysteryEncounter from "#app/data/mystery-encounters/mystery-encounter";
@@ -29,6 +29,8 @@ import { MysteryEncounterOptionMode } from "#enums/mystery-encounter-option-mode
 import { CLASSIC_MODE_MYSTERY_ENCOUNTER_WAVES } from "#app/game-mode";
 import { Abilities } from "#enums/abilities";
 import { NON_LEGEND_PARADOX_POKEMON } from "#app/data/balance/special-species-groups";
+import { timedEventManager } from "#app/global-event-manager";
+import { NON_LEGEND_ULTRA_BEASTS } from "../../balance/special-species-groups";
 
 /** the i18n namespace for this encounter */
 const namespace = "mysteryEncounters/thePokemonSalesman";
@@ -38,6 +40,9 @@ const MAX_POKEMON_PRICE_MULTIPLIER = 4;
 /** Odds of shiny magikarp will be 1/value */
 const SHINY_MAGIKARP_WEIGHT = 100;
 
+/** Odds of event sale will be 1/value */
+const EVENT_THRESHOLD = 20;
+
 /**
  * Pokemon Salesman encounter.
  * @see {@link https://github.com/pagefaultgames/pokerogue/issues/3799 | GitHub Issue #3799}
@@ -82,15 +87,47 @@ export const ThePokemonSalesmanEncounter: MysteryEncounter = MysteryEncounterBui
       tries++;
     }
 
+    const r = randSeedInt(SHINY_MAGIKARP_WEIGHT);
+
+    const validEventEncounters = timedEventManager
+      .getEventEncounters()
+      .filter(
+        s =>
+          !getPokemonSpecies(s.species).legendary &&
+          !getPokemonSpecies(s.species).subLegendary &&
+          !getPokemonSpecies(s.species).mythical &&
+          !NON_LEGEND_PARADOX_POKEMON.includes(s.species) &&
+          !NON_LEGEND_ULTRA_BEASTS.includes(s.species),
+      );
+
     let pokemon: PlayerPokemon;
+    /**
+     * Mon is determined as follows:
+     * If you roll the 1% for Shiny Magikarp, you get Magikarp with a random variant
+     * If an event with more than 1 valid event encounter species is active, you have 19% chance to get one of those
+     * If the rolled species has no HA, you have a 5% chance to get Shiny Magikarp and a 95% chance to get an event encounter
+     * If the rolled species has no HA and there are no valid event encounters, you will get Shiny Magikarp
+     * Mons rolled from the event encounter pool get 2 extra shiny rolls
+     */
     if (
-      randSeedInt(SHINY_MAGIKARP_WEIGHT) === 0 ||
-      isNullOrUndefined(species.abilityHidden) ||
-      species.abilityHidden === Abilities.NONE
+      r === 0 ||
+      ((isNullOrUndefined(species.abilityHidden) || species.abilityHidden === Abilities.NONE) &&
+        (validEventEncounters.length === 0 || r < SHINY_MAGIKARP_WEIGHT / EVENT_THRESHOLD))
     ) {
-      // If no HA mon found or you roll 1%, give shiny Magikarp with random variant
+      // If you roll 1%, give shiny Magikarp with random variant
       species = getPokemonSpecies(Species.MAGIKARP);
-      pokemon = new PlayerPokemon(species, 5, 2, species.formIndex, undefined, true);
+      pokemon = new PlayerPokemon(species, 5, 2, undefined, undefined, true);
+    } else if (
+      (validEventEncounters.length > 0 && r < EVENT_THRESHOLD) ||
+      ((isNullOrUndefined(species.abilityHidden) || species.abilityHidden === Abilities.NONE) &&
+        r >= SHINY_MAGIKARP_WEIGHT / EVENT_THRESHOLD)
+    ) {
+      // If you roll 19%, give event encounter with 2 extra shiny rolls
+      const enc = randSeedItem(validEventEncounters);
+      species = getPokemonSpecies(enc.species);
+      pokemon = new PlayerPokemon(species, 5, species.abilityHidden === Abilities.NONE ? undefined : 2, enc.formIndex);
+      pokemon.trySetShinySeed();
+      pokemon.trySetShinySeed();
     } else {
       pokemon = new PlayerPokemon(species, 5, 2, species.formIndex);
     }

src/timed-event-manager.ts

@@ -310,6 +310,47 @@ const timedEvents: TimedEvent[] = [
       },
     ],
   },
+  {
+    name: "Spring 2025",
+    eventType: EventType.SHINY,
+    startDate: new Date(Date.UTC(2025, 2, 30)),
+    endDate: new Date(Date.UTC(2025, 4, 30)),
+    bannerKey: "spr25",
+    scale: 0.21,
+    availableLangs: ["en", "de", "it", "fr", "ja", "ko", "es-ES", "es-MX", "pt-BR", "zh-CN"],
+    shinyMultiplier: 3,
+    upgradeUnlockedVouchers: true,
+    classicWaveRewards: [
+      { wave: 8, type: "SHINY_CHARM" },
+      { wave: 8, type: "ABILITY_CHARM" },
+      { wave: 8, type: "CATCHING_CHARM" },
+      { wave: 25, type: "SHINY_CHARM" },
+    ],
+    eventEncounters: [
+      { species: Species.NIDORAN_F },
+      { species: Species.NIDORAN_M },
+      { species: Species.EXEGGCUTE },
+      { species: Species.HOPPIP },
+      { species: Species.PINECO },
+      { species: Species.TOGEPI },
+      { species: Species.TORCHIC },
+      { species: Species.NOSEPASS },
+      { species: Species.SPOINK },
+      { species: Species.STARLY },
+      { species: Species.SHINX },
+      { species: Species.PACHIRISU },
+      { species: Species.CHERUBI },
+      { species: Species.MUNCHLAX },
+      { species: Species.TEPIG },
+      { species: Species.PANSAGE },
+      { species: Species.PANSEAR },
+      { species: Species.PANPOUR },
+      { species: Species.SEWADDLE },
+      { species: Species.ARCHEN },
+      { species: Species.JANGMO_O },
+      { species: Species.APPLIN },
+    ],
+  },
 ];
 
 export class TimedEventManager {