Merge pull request #112 from AsdarDevelops/pokemon-salesman

Pokemon salesman

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,115 @@
+name: Bug Report
+description: Create a report to help us improve
+title: "[Bug] "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: textarea
+    id: description
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of what the bug is.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: textarea
+    id: session-file
+    attributes:
+      label: User data export file
+      description: Open Menu → ManageData → Export Session → Select slot. The file should now be in your `/Downloads` directory. Change the file extension type from `.prsv` to `.txt` (How to [Windows](https://www.guidingtech.com/how-to-change-file-type-on-windows/) | [Mac](https://support.apple.com/guide/mac-help/show-or-hide-filename-extensions-on-mac-mchlp2304/mac) | [iOS](https://www.guidingtech.com/change-file-type-extension-on-iphone/)).
+      placeholder: Focus me and then drop your file here (or use the upload button at the bottom)
+    validations:
+      required: false
+  - type: textarea
+    id: data-file
+    attributes:
+      label: Session export file
+      description: Open Menu → ManageData → Export Data. The file should now be in your `/Downloads` directory. Change the file extension type from `.prsv` to `.txt` (How to [Windows](https://www.guidingtech.com/how-to-change-file-type-on-windows/) | [Mac](https://support.apple.com/guide/mac-help/show-or-hide-filename-extensions-on-mac-mchlp2304/mac) | [iOS](https://www.guidingtech.com/change-file-type-extension-on-iphone/)).
+      placeholder: Focus me and then drop your file here (or use the upload button at the bottom)
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: A clear and concise description of what you expected to happen. If it is an existing move or ability
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: textarea
+    id: media
+    attributes:
+      label: Screenshots / Videos
+      description:  If applicable, add screenshots or videos to help explain your problem.
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: dropdown
+    id: os
+    attributes:
+      label: What OS did you observe the bug on?
+      multiple: true
+      options:
+        - PC/Windows
+        - Mac/OSX
+        - Linux
+        - iOS
+        - Android
+        - Other
+    validations:
+      required: true
+  - type: input
+    id: os-other
+    attributes:
+      label: If other please specify
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: dropdown
+    id: browser
+    attributes:
+      label: Which browser do you use?
+      multiple: true
+      options:
+        - Chrome
+        - Firefox
+        - Safari
+        - Edge
+        - Opera
+        - Other
+    validations:
+      required: true
+  - type: input
+    id: browser-other
+    attributes:
+      label: If other please specify
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: |
+        ---
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional context
+      description: Add any other context about the problem here.

.github/pull_request_template.md

@@ -28,7 +28,8 @@
 - [ ] There is no overlap with another PR?
 - [ ] The PR is self-contained and cannot be split into smaller PRs?
 - [ ] Have I provided a clear explanation of the changes?
+- [ ] Have I considered writing automated tests for the issue?
 - [ ] Have I tested the changes (manually)?
     - [ ] Are all unit tests still passing? (`npm run test`)
 - [ ] Are the changes visual?
-  - [ ] Have I provided screenshots/videos of the changes?
+  - [ ] Have I provided screenshots/videos of the changes?

public/images/mystery-encounters/encounter_radar.json

@@ -0,0 +1,41 @@
+{
+	"textures": [
+		{
+			"image": "encounter_radar.png",
+			"format": "RGBA8888",
+			"size": {
+				"w": 17,
+				"h": 16
+			},
+			"scale": 1,
+			"frames": [
+				{
+					"filename": "0001.png",
+					"rotated": false,
+					"trimmed": false,
+					"sourceSize": {
+						"w": 15,
+						"h": 14
+					},
+					"spriteSourceSize": {
+						"x": 0,
+						"y": 0,
+						"w": 15,
+						"h": 14
+					},
+					"frame": {
+						"x": 1,
+						"y": 1,
+						"w": 15,
+						"h": 14
+					}
+				}
+			]
+		}
+	],
+	"meta": {
+		"app": "https://www.codeandweb.com/texturepacker",
+		"version": "3.0",
+		"smartupdate": "$TexturePacker:SmartUpdate:eb3445f19546ab36edb2909c89b8aa86:c8de156a28ef70ee4ddf70cffe1ba3ba:e7008b81ccf0cb0325145a809afa6165$"
+	}
+}

public/images/mystery-encounters/pokemon_salesman.json

@@ -1,11 +1,11 @@
 {
 	"textures": [
 		{
-			"image": "berry_juice.png",
+			"image": "pokemon_salesman.png",
 			"format": "RGBA8888",
 			"size": {
-				"w": 24,
+				"w": 40,
-				"h": 23
+				"h": 80
 			},
 			"scale": 1,
 			"frames": [
@@ -14,20 +14,20 @@
 					"rotated": false,
 					"trimmed": true,
 					"sourceSize": {
-						"w": 24,
+						"w": 80,
-						"h": 24
+						"h": 80
 					},
 					"spriteSourceSize": {
-						"x": 1,
+						"x": 21,
 						"y": 2,
-						"w": 22,
+						"w": 38,
-						"h": 21
+						"h": 78
 					},
 					"frame": {
 						"x": 1,
 						"y": 1,
-						"w": 22,
+						"w": 38,
-						"h": 21
+						"h": 78
 					}
 				}
 			]
@@ -36,6 +36,6 @@
 	"meta": {
 		"app": "https://www.codeandweb.com/texturepacker",
 		"version": "3.0",
-		"smartupdate": "$TexturePacker:SmartUpdate:04685a0eb6ef9095824b65408ec1b38f:9891674d538df100fcddde29330c21ae:927f117bdb1c2a27226a5540ce00ee8b$"
+		"smartupdate": "$TexturePacker:SmartUpdate:dd57e3db21f3933c15be65bec261f4c1:05c7ef32252a5c2d3ad007b7e26fabd7:ae82f52e471ed81e2558206f05476cd7$"
 	}
 }

src/battle-scene.ts

@@ -67,7 +67,7 @@ import { UiTheme } from "#enums/ui-theme";
 import { TimedEventManager } from "#app/timed-event-manager.js";
 import i18next from "i18next";
 import IMysteryEncounter, { MysteryEncounterTier, MysteryEncounterVariant } from "./data/mystery-encounters/mystery-encounter";
-import { allMysteryEncounters, AVERAGE_ENCOUNTERS_PER_RUN_TARGET, BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT, mysteryEncountersByBiome, WIGHT_INCREMENT_ON_SPAWN_MISS } from "./data/mystery-encounters/mystery-encounters";
+import { allMysteryEncounters, AVERAGE_ENCOUNTERS_PER_RUN_TARGET, BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT, mysteryEncountersByBiome, WEIGHT_INCREMENT_ON_SPAWN_MISS } from "./data/mystery-encounters/mystery-encounters";
 import { MysteryEncounterData } from "#app/data/mystery-encounters/mystery-encounter-data";
 import { MysteryEncounterType } from "#enums/mystery-encounter-type";
 
@@ -1074,7 +1074,7 @@ export default class BattleScene extends SceneBase {
       // let testStartingWeight = 0;
       // while (testStartingWeight < 3) {
       //   calculateMEAggregateStats(this, testStartingWeight);
-      //   testStartingWeight += 1;
+      //   testStartingWeight += 2;
       // }
       // Check for mystery encounter
       // Can only occur in place of a standard wild battle, waves 10-180
@@ -1098,7 +1098,7 @@ export default class BattleScene extends SceneBase {
           // Reset base spawn weight
           this.mysteryEncounterData.encounterSpawnChance = BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT;
         } else {
-          this.mysteryEncounterData.encounterSpawnChance = sessionEncounterRate + WIGHT_INCREMENT_ON_SPAWN_MISS;
+          this.mysteryEncounterData.encounterSpawnChance = sessionEncounterRate + WEIGHT_INCREMENT_ON_SPAWN_MISS;
         }
       }
     }

src/data/mystery-encounters/encounters/field-trip-encounter.ts

@@ -87,11 +87,17 @@ export const FieldTripEncounter: IMysteryEncounter =
                   if (!correctMove) {
                     encounter.options[0].dialogue.selected = [
                       {
-                        text: `${namespace}:incorrect`,
+                        text: `${namespace}:option:incorrect`,
-                        speaker: `${namespace}:speaker`,
+                        speaker: `${namespace}:option:speaker`,
                       },
                       {
-                        text: `${namespace}:lesson_learned`,
+                        text: `${namespace}:option:lesson_learned`,
+                      },
+                    ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_bad`,
+                        speaker: `${namespace}:speaker`,
                       },
                     ];
                     setEncounterExp(scene, scene.getParty().map((p) => p.id), 50);
@@ -103,6 +109,12 @@ export const FieldTripEncounter: IMysteryEncounter =
                         text: `${namespace}:option:selected`,
                       },
                     ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_good`,
+                        speaker: `${namespace}:speaker`,
+                      },
+                    ];
                     setEncounterExp(scene, [pokemon.id], 100);
                   }
                   encounter.misc = {
@@ -161,11 +173,23 @@ export const FieldTripEncounter: IMysteryEncounter =
                   if (!correctMove) {
                     encounter.options[1].dialogue.selected = [
                       {
-                        text: `${namespace}:incorrect`,
+                        text: `${namespace}:option:incorrect`,
-                        speaker: `${namespace}:speaker`,
+                        speaker: `${namespace}:option:speaker`,
                       },
                       {
-                        text: `${namespace}:lesson_learned`,
+                        text: `${namespace}:option:lesson_learned`,
+                      },
+                    ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_bad`,
+                        speaker: `${namespace}:speaker`,
+                      },
+                    ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_bad`,
+                        speaker: `${namespace}:speaker`,
                       },
                     ];
                     setEncounterExp(scene, scene.getParty().map((p) => p.id), 50);
@@ -177,6 +201,12 @@ export const FieldTripEncounter: IMysteryEncounter =
                         text: `${namespace}:option:selected`,
                       },
                     ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_good`,
+                        speaker: `${namespace}:speaker`,
+                      },
+                    ];
                     setEncounterExp(scene, [pokemon.id], 100);
                   }
                   encounter.misc = {
@@ -235,18 +265,20 @@ export const FieldTripEncounter: IMysteryEncounter =
                   if (!correctMove) {
                     encounter.options[2].dialogue.selected = [
                       {
-                        text: `${namespace}:incorrect`,
+                        text: `${namespace}:option:incorrect`,
-                        speaker: `${namespace}:speaker`,
+                        speaker: `${namespace}:option:speaker`,
                       },
                       {
-                        text: `${namespace}:lesson_learned`,
+                        text: `${namespace}:option:lesson_learned`,
                       },
                     ];
-                    setEncounterExp(
+                    encounter.dialogue.outro = [
-                      scene,
+                      {
-                      scene.getParty().map((p) => p.id),
+                        text: `${namespace}:outro_bad`,
-                      50
+                        speaker: `${namespace}:speaker`,
-                    );
+                      },
+                    ];
+                    setEncounterExp(scene, scene.getParty().map((p) => p.id), 50);
                   } else {
                     encounter.setDialogueToken("pokeName", pokemon.name);
                     encounter.setDialogueToken("move", move.getName());
@@ -255,6 +287,12 @@ export const FieldTripEncounter: IMysteryEncounter =
                         text: `${namespace}:option:selected`,
                       },
                     ];
+                    encounter.dialogue.outro = [
+                      {
+                        text: `${namespace}:outro_good`,
+                        speaker: `${namespace}:speaker`,
+                      },
+                    ];
                     setEncounterExp(scene, [pokemon.id], 100);
                   }
                   encounter.misc = {

src/data/mystery-encounters/encounters/fight-or-flight-encounter.ts

@@ -48,7 +48,7 @@ export const FightOrFlightEncounter: IMysteryEncounter =
     .withIntroSpriteConfigs([]) // Set in onInit()
     .withIntroDialogue([
       {
-        text: `${namespace}_intro_message`,
+        text: `${namespace}:intro`,
       },
     ])
     .withOnInit((scene: BattleScene) => {
@@ -87,6 +87,7 @@ export const FightOrFlightEncounter: IMysteryEncounter =
           y: -5,
           scale: 0.75,
           isItem: true,
+          disableAnimation: true
         },
         {
           spriteKey: bossSpriteKey,
@@ -149,7 +150,7 @@ export const FightOrFlightEncounter: IMysteryEncounter =
           const primaryPokemon = encounter.options[1].primaryPokemon;
           if (primaryPokemon) {
             // Use primaryPokemon to execute the thievery
-            await showEncounterText(scene, `${namespace}:option:2:steal_result`);
+            await showEncounterText(scene, `${namespace}:option:2:special_result`);
             leaveEncounterWithoutBattle(scene);
             return;
           }

src/data/mystery-encounters/encounters/mysterious-challengers-encounter.ts

@@ -169,7 +169,7 @@ export const MysteriousChallengersEncounter: IMysteryEncounter =
         // Spawn hard fight with ULTRA/GREAT reward (can improve with luck)
         const config: EnemyPartyConfig = encounter.enemyPartyConfigs[1];
 
-        setEncounterRewards(scene, { guaranteedModifierTiers: [ModifierTier.ULTRA, ModifierTier.GREAT, ModifierTier.GREAT], fillRemaining: true });
+        setEncounterRewards(scene, { guaranteedModifierTiers: [ModifierTier.ULTRA, ModifierTier.ULTRA, ModifierTier.GREAT, ModifierTier.GREAT], fillRemaining: true });
 
         // Seed offsets to remove possibility of different trainers having exact same teams
         let ret;
@@ -197,7 +197,7 @@ export const MysteriousChallengersEncounter: IMysteryEncounter =
         // To avoid player level snowballing from picking this option
         encounter.expMultiplier = 0.9;
 
-        setEncounterRewards(scene, { guaranteedModifierTiers: [ModifierTier.ROGUE, ModifierTier.ULTRA, ModifierTier.GREAT], fillRemaining: true });
+        setEncounterRewards(scene, { guaranteedModifierTiers: [ModifierTier.ROGUE, ModifierTier.ROGUE, ModifierTier.ULTRA, ModifierTier.GREAT], fillRemaining: true });
 
         // Seed offsets to remove possibility of different trainers having exact same teams
         let ret;

src/data/mystery-encounters/encounters/mysterious-chest-encounter.ts

@@ -34,8 +34,8 @@ export const MysteriousChestEncounter: IMysteryEncounter =
     ])
     .withIntroDialogue([
       {
-        text: "${namespace}:intro:message",
+        text: `${namespace}:intro`,
-      },
+      }
     ])
     .withTitle(`${namespace}:title`)
     .withDescription(`${namespace}:description`)

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

@@ -0,0 +1,156 @@
+import { leaveEncounterWithoutBattle, transitionMysteryEncounterIntroVisuals, updatePlayerMoney, } from "#app/data/mystery-encounters/utils/encounter-phase-utils";
+import { isNullOrUndefined, randSeedInt } from "#app/utils";
+import { MysteryEncounterType } from "#enums/mystery-encounter-type";
+import BattleScene from "../../../battle-scene";
+import IMysteryEncounter, { MysteryEncounterBuilder, MysteryEncounterTier, } from "../mystery-encounter";
+import { MoneyRequirement } from "../mystery-encounter-requirements";
+import { catchPokemon, getRandomSpeciesByStarterTier } from "#app/data/mystery-encounters/utils/encounter-pokemon-utils";
+import { getPokemonSpecies, speciesStarters } from "#app/data/pokemon-species";
+import { Species } from "#enums/species";
+import { PokeballType } from "#app/data/pokeball";
+import { EnemyPokemon, PlayerPokemon } from "#app/field/pokemon";
+import { EncounterOptionMode, MysteryEncounterOptionBuilder } from "#app/data/mystery-encounters/mystery-encounter-option";
+import { showEncounterDialogue } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
+import PokemonData from "#app/system/pokemon-data";
+
+/** the i18n namespace for this encounter */
+const namespace = "mysteryEncounter:pokemonSalesman";
+
+const MAX_POKEMON_PRICE_MULTIPLIER = 6;
+
+/**
+ * Pokemon Salesman encounter.
+ * @see {@link https://github.com/AsdarDevelops/PokeRogue-Events/issues/36 | GitHub Issue #36}
+ * @see For biome requirements check {@linkcode mysteryEncountersByBiome}
+ */
+export const PokemonSalesmanEncounter: IMysteryEncounter =
+  MysteryEncounterBuilder.withEncounterType(MysteryEncounterType.POKEMON_SALESMAN)
+    .withEncounterTier(MysteryEncounterTier.ULTRA)
+    .withSceneWaveRangeRequirement(10, 180)
+    .withSceneRequirement(new MoneyRequirement(null, MAX_POKEMON_PRICE_MULTIPLIER)) // Some costs may not be as significant, this is the max you'd pay
+    .withAutoHideIntroVisuals(false)
+    .withIntroSpriteConfigs([
+      {
+        spriteKey: "pokemon_salesman",
+        fileRoot: "mystery-encounters",
+        hasShadow: true
+      }
+    ])
+    .withIntroDialogue([
+      {
+        text: `${namespace}:intro`,
+      },
+      {
+        text: `${namespace}:intro_dialogue`,
+        speaker: `${namespace}:speaker`,
+      },
+    ])
+    .withTitle(`${namespace}:title`)
+    .withDescription(`${namespace}:description`)
+    .withQuery(`${namespace}:query`)
+    .withOnInit((scene: BattleScene) => {
+      const encounter = scene.currentBattle.mysteryEncounter;
+
+      let species = getPokemonSpecies(getRandomSpeciesByStarterTier([0, 5]));
+      const tries = 0;
+
+      // Reroll any species that don't have HAs
+      while (isNullOrUndefined(species.abilityHidden) && tries < 5) {
+        species = getPokemonSpecies(getRandomSpeciesByStarterTier([0, 5]));
+      }
+
+      let pokemon: PlayerPokemon;
+      if (isNullOrUndefined(species.abilityHidden) || randSeedInt(100) === 0) {
+        // If no HA mon found or you roll 1%, give shiny Magikarp
+        species = getPokemonSpecies(Species.MAGIKARP);
+        const hiddenIndex = species.ability2 ? 2 : 1;
+        pokemon = scene.addPlayerPokemon(species, 5, hiddenIndex, species.formIndex, null, true);
+      } else {
+        const hiddenIndex = species.ability2 ? 2 : 1;
+        pokemon = scene.addPlayerPokemon(species, 5, hiddenIndex, species.formIndex);
+      }
+
+      const spriteKey = pokemon.getSpriteId();
+      const spriteRoot = pokemon.getSpriteAtlasPath();
+      encounter.spriteConfigs.push({
+        spriteKey: spriteKey,
+        fileRoot: spriteRoot,
+        hasShadow: true,
+        repeat: true,
+        isPokemon: true
+      });
+
+      const starterTier = speciesStarters[species.speciesId];
+      // Prices decrease by starter tier less than 5, but only reduces cost by half at max
+      let priceMultiplier = MAX_POKEMON_PRICE_MULTIPLIER * (Math.max(starterTier, 2.5) / 5);
+      if (pokemon.shiny) {
+        // Always max price for shiny (flip HA back to normal), and add special messaging
+        priceMultiplier = MAX_POKEMON_PRICE_MULTIPLIER;
+        pokemon.abilityIndex = 0;
+        encounter.dialogue.encounterOptionsDialogue.description = `${namespace}:description_shiny`;
+        encounter.options[0].dialogue.buttonTooltip = `${namespace}:option:1:tooltip_shiny`;
+      }
+      const price = scene.getWaveMoneyAmount(priceMultiplier);
+      encounter.setDialogueToken("purchasePokemon", pokemon.name);
+      encounter.setDialogueToken("price", price.toString());
+      encounter.misc = {
+        price: price,
+        pokemon: pokemon
+      };
+
+      pokemon.calculateStats();
+
+      return true;
+    })
+    .withOption(
+      new MysteryEncounterOptionBuilder()
+        .withOptionMode(EncounterOptionMode.DEFAULT_OR_SPECIAL)
+        .withHasDexProgress(true)
+        .withSceneMoneyRequirement(null, MAX_POKEMON_PRICE_MULTIPLIER) // Wave scaling money multiplier of 2
+        .withDialogue({
+          buttonLabel: `${namespace}:option:1:label`,
+          buttonTooltip: `${namespace}:option:1:tooltip`,
+          selected: [
+            {
+              text: `${namespace}:option:1:selected_message`,
+            }
+          ],
+        })
+        .withOptionPhase(async (scene: BattleScene) => {
+          const encounter = scene.currentBattle.mysteryEncounter;
+          const price = encounter.misc.price;
+          const purchasedPokemon = encounter.misc.pokemon as PlayerPokemon;
+
+          // Update money
+          updatePlayerMoney(scene, -price, true, false);
+
+          // Show dialogue
+          await showEncounterDialogue(scene, `${namespace}:option:1:selected_dialogue`, `${namespace}:speaker`);
+          await transitionMysteryEncounterIntroVisuals(scene);
+
+          // "Catch" purchased pokemon
+          const data = new PokemonData(purchasedPokemon);
+          data.player = false;
+          await catchPokemon(scene, data.toPokemon(scene) as EnemyPokemon, null, PokeballType.POKEBALL, true);
+
+          leaveEncounterWithoutBattle(scene, true);
+        })
+        .build()
+    )
+    .withSimpleOption(
+      {
+        buttonLabel: `${namespace}:option:2:label`,
+        buttonTooltip: `${namespace}:option:2:tooltip`,
+        selected: [
+          {
+            text: `${namespace}:option:2:selected`,
+          },
+        ],
+      },
+      async (scene: BattleScene) => {
+        // Leave encounter with no rewards or exp
+        leaveEncounterWithoutBattle(scene, true);
+        return true;
+      }
+    )
+    .build();

src/data/mystery-encounters/encounters/the-strong-stuff-encounter.ts

@@ -19,6 +19,11 @@ import { BerryType } from "#enums/berry-type";
 /** the i18n namespace for the encounter */
 const namespace = "mysteryEncounter:theStrongStuff";
 
+/**
+ * The Strong Stuff encounter.
+ * @see {@link https://github.com/AsdarDevelops/PokeRogue-Events/issues/54 | GitHub Issue #54}
+ * @see For biome requirements check {@linkcode mysteryEncountersByBiome}
+ */
 export const TheStrongStuffEncounter: IMysteryEncounter =
   MysteryEncounterBuilder.withEncounterType(MysteryEncounterType.THE_STRONG_STUFF)
     .withEncounterTier(MysteryEncounterTier.COMMON)
@@ -28,12 +33,13 @@ export const TheStrongStuffEncounter: IMysteryEncounter =
     .withIntroSpriteConfigs([
       {
         spriteKey: "berry_juice",
-        fileRoot: "mystery-encounters",
+        fileRoot: "items",
         hasShadow: true,
+        isItem: true,
         scale: 1.5,
         x: -15,
         y: 3,
-        yShadow: 0
+        disableAnimation: true
       },
       {
         spriteKey: Species.SHUCKLE.toString(),

src/data/mystery-encounters/encounters/training-session-encounter.ts

@@ -3,7 +3,7 @@ import { EnemyPartyConfig, initBattleWithEnemyConfig, selectPokemonForOption, se
 import { getNatureName, Nature } from "#app/data/nature";
 import { speciesStarters } from "#app/data/pokemon-species";
 import { Stat } from "#app/data/pokemon-stat";
-import { PlayerPokemon } from "#app/field/pokemon";
+import Pokemon, { PlayerPokemon } from "#app/field/pokemon";
 import { pokemonInfo } from "#app/locales/en/pokemon-info";
 import { PokemonHeldItemModifier } from "#app/modifier/modifier";
 import { PokemonHeldItemModifierType } from "#app/modifier/modifier-type";
@@ -16,7 +16,7 @@ import { MysteryEncounterType } from "#enums/mystery-encounter-type";
 import BattleScene from "../../../battle-scene";
 import IMysteryEncounter, { MysteryEncounterBuilder, MysteryEncounterTier, } from "../mystery-encounter";
 import { EncounterOptionMode, MysteryEncounterOptionBuilder } from "../mystery-encounter-option";
-import { queueEncounterMessage } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
+import { getEncounterText, queueEncounterMessage } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
 
 /** The i18n namespace for the encounter */
 const namespace = "mysteryEncounter:trainingSession";
@@ -27,11 +27,10 @@ const namespace = "mysteryEncounter:trainingSession";
  * @see For biome requirements check {@linkcode mysteryEncountersByBiome}
  */
 export const TrainingSessionEncounter: IMysteryEncounter =
-  MysteryEncounterBuilder.withEncounterType(
+  MysteryEncounterBuilder.withEncounterType(MysteryEncounterType.TRAINING_SESSION)
-    MysteryEncounterType.TRAINING_SESSION
-  )
     .withEncounterTier(MysteryEncounterTier.ULTRA)
     .withSceneWaveRangeRequirement(10, 180) // waves 10 to 180
+    .withScenePartySizeRequirement(2, 6, true) // Must have at least 2 unfainted pokemon in party
     .withHideWildIntroMessage(true)
     .withIntroSpriteConfigs([
       {
@@ -46,7 +45,7 @@ export const TrainingSessionEncounter: IMysteryEncounter =
     .withIntroDialogue([
       {
         text: `${namespace}:intro`,
-      },
+      }
     ])
     .withTitle(`${namespace}:title`)
     .withDescription(`${namespace}:description`)
@@ -54,6 +53,7 @@ export const TrainingSessionEncounter: IMysteryEncounter =
     .withOption(
       new MysteryEncounterOptionBuilder()
         .withOptionMode(EncounterOptionMode.DEFAULT)
+        .withHasDexProgress(true)
         .withDialogue({
           buttonLabel: `${namespace}:option:1:label`,
           buttonTooltip: `${namespace}:option:1:tooltip`,
@@ -71,7 +71,17 @@ export const TrainingSessionEncounter: IMysteryEncounter =
             };
           };
 
-          return selectPokemonForOption(scene, onPokemonSelected);
+          // Only Pokemon that are not KOed/legal can be trained
+          const selectableFilter = (pokemon: Pokemon) => {
+            const meetsReqs = pokemon.isAllowedInBattle();
+            if (!meetsReqs) {
+              return getEncounterText(scene, `${namespace}:invalid_selection`);
+            }
+
+            return null;
+          };
+
+          return selectPokemonForOption(scene, onPokemonSelected, null, selectableFilter);
         })
         .withOptionPhase(async (scene: BattleScene) => {
           const encounter = scene.currentBattle.mysteryEncounter;
@@ -187,6 +197,7 @@ export const TrainingSessionEncounter: IMysteryEncounter =
     .withOption(
       new MysteryEncounterOptionBuilder()
         .withOptionMode(EncounterOptionMode.DEFAULT)
+        .withHasDexProgress(true)
         .withDialogue({
           buttonLabel: `${namespace}:option:2:label`,
           buttonTooltip: `${namespace}:option:2:tooltip`,
@@ -220,7 +231,17 @@ export const TrainingSessionEncounter: IMysteryEncounter =
             });
           };
 
-          return selectPokemonForOption(scene, onPokemonSelected);
+          // Only Pokemon that are not KOed/legal can be trained
+          const selectableFilter = (pokemon: Pokemon) => {
+            const meetsReqs = pokemon.isAllowedInBattle();
+            if (!meetsReqs) {
+              return getEncounterText(scene, `${namespace}:invalid_selection`);
+            }
+
+            return null;
+          };
+
+          return selectPokemonForOption(scene, onPokemonSelected, null, selectableFilter);
         })
         .withOptionPhase(async (scene: BattleScene) => {
           const encounter = scene.currentBattle.mysteryEncounter;
@@ -269,6 +290,7 @@ export const TrainingSessionEncounter: IMysteryEncounter =
     .withOption(
       new MysteryEncounterOptionBuilder()
         .withOptionMode(EncounterOptionMode.DEFAULT)
+        .withHasDexProgress(true)
         .withDialogue({
           buttonLabel: `${namespace}:option:3:label`,
           buttonTooltip: `${namespace}:option:3:tooltip`,
@@ -311,7 +333,17 @@ export const TrainingSessionEncounter: IMysteryEncounter =
             });
           };
 
-          return selectPokemonForOption(scene, onPokemonSelected);
+          // Only Pokemon that are not KOed/legal can be trained
+          const selectableFilter = (pokemon: Pokemon) => {
+            const meetsReqs = pokemon.isAllowedInBattle();
+            if (!meetsReqs) {
+              return getEncounterText(scene, `${namespace}:invalid_selection`);
+            }
+
+            return null;
+          };
+
+          return selectPokemonForOption(scene, onPokemonSelected, null, selectableFilter);
         })
         .withOptionPhase(async (scene: BattleScene) => {
           const encounter = scene.currentBattle.mysteryEncounter;
@@ -393,23 +425,12 @@ export const TrainingSessionEncounter: IMysteryEncounter =
     )
     .build();
 
-function getEnemyConfig(
+function getEnemyConfig(scene: BattleScene, playerPokemon: PlayerPokemon,segments: number,modifiers: ModifiersHolder): EnemyPartyConfig {
-  scene: BattleScene,
-  playerPokemon: PlayerPokemon,
-  segments: number,
-  modifiers: ModifiersHolder
-): EnemyPartyConfig {
   playerPokemon.resetSummonData();
 
   // Passes modifiers by reference
-  modifiers.value = scene.findModifiers(
+  modifiers.value = scene.findModifiers((m) => m instanceof PokemonHeldItemModifier && (m as PokemonHeldItemModifier).pokemonId === playerPokemon.id) as PokemonHeldItemModifier[];
-    (m) =>
+  const modifierTypes = modifiers.value.map((mod) => mod.type) as PokemonHeldItemModifierType[];
-      m instanceof PokemonHeldItemModifier &&
-      (m as PokemonHeldItemModifier).pokemonId === playerPokemon.id
-  ) as PokemonHeldItemModifier[];
-  const modifierTypes = modifiers.value.map(
-    (mod) => mod.type
-  ) as PokemonHeldItemModifierType[];
 
   const data = new PokemonData(playerPokemon);
   return {

src/data/mystery-encounters/mystery-encounter-option.ts

@@ -6,6 +6,7 @@ import * as Utils from "../../utils";
 import { Type } from "../type";
 import { EncounterPokemonRequirement, EncounterSceneRequirement, MoneyRequirement, TypeRequirement } from "./mystery-encounter-requirements";
 import { CanLearnMoveRequirement, CanLearnMoveRequirementOptions } from "./requirements/can-learn-move-requirement";
+import { isNullOrUndefined } from "../../utils";
 
 export enum EncounterOptionMode {
   /** Default style */
@@ -23,6 +24,9 @@ export type OptionPhaseCallback = (scene: BattleScene) => Promise<void | boolean
 
 export default interface MysteryEncounterOption {
   optionMode: EncounterOptionMode;
+
+  hasDexProgress?: boolean;
+
   requirements?: EncounterSceneRequirement[];
   primaryPokemonRequirements?: EncounterPokemonRequirement[];
   secondaryPokemonRequirements?: EncounterPokemonRequirement[];
@@ -47,6 +51,7 @@ export default interface MysteryEncounterOption {
 export default class MysteryEncounterOption implements MysteryEncounterOption {
   constructor(option: MysteryEncounterOption) {
     Object.assign(this, option);
+    this.hasDexProgress = !isNullOrUndefined(this.hasDexProgress) ? this.hasDexProgress : false;
     this.requirements = this.requirements ? this.requirements : [];
     this.primaryPokemonRequirements = this.primaryPokemonRequirements ? this.primaryPokemonRequirements : [];
     this.secondaryPokemonRequirements = this.secondaryPokemonRequirements ? this.secondaryPokemonRequirements : [];
@@ -155,6 +160,10 @@ export class MysteryEncounterOptionBuilder implements Partial<MysteryEncounterOp
     return Object.assign(this, { optionMode });
   }
 
+  withHasDexProgress(hasDexProgress: boolean): this & Required<Pick<MysteryEncounterOption, "hasDexProgress">> {
+    return Object.assign(this, { hasDexProgress: hasDexProgress });
+  }
+
   withSceneRequirement(requirement: EncounterSceneRequirement): this & Required<Pick<MysteryEncounterOption, "requirements">> {
     this.requirements.push(requirement);
     return Object.assign(this, { requirements: this.requirements });

src/data/mystery-encounters/mystery-encounter-requirements.ts

@@ -144,20 +144,23 @@ export class WeatherRequirement extends EncounterSceneRequirement {
 
 export class PartySizeRequirement extends EncounterSceneRequirement {
   partySizeRange: [number, number];
+  excludeFainted: boolean;
 
   /**
    * Used for specifying a party size requirement
    * If min and max are equivalent, will check for exact size
    * @param partySizeRange - [min, max]
+   * @param excludeFainted
    */
-  constructor(partySizeRange: [number, number]) {
+  constructor(partySizeRange: [number, number], excludeFainted: boolean) {
     super();
     this.partySizeRange = partySizeRange;
+    this.excludeFainted = excludeFainted;
   }
 
   meetsRequirement(scene: BattleScene): boolean {
     if (!isNullOrUndefined(this?.partySizeRange) && this.partySizeRange?.[0] <= this.partySizeRange?.[1]) {
-      const partySize = scene.getParty().length;
+      const partySize = this.excludeFainted ? scene.getParty().filter(p => p.isAllowedInBattle()).length : scene.getParty().length;
       if (partySize >= 0 && (this?.partySizeRange?.[0] >= 0 && this.partySizeRange?.[0] > partySize) || (this?.partySizeRange?.[1] >= 0 && this.partySizeRange?.[1] < partySize)) {
         return false;
       }

src/data/mystery-encounters/mystery-encounter.ts

@@ -403,7 +403,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
   options?: [MysteryEncounterOption, MysteryEncounterOption, ...MysteryEncounterOption[]] = [null, null];
   spriteConfigs?: MysteryEncounterSpriteConfig[];
 
-  dialogue?: MysteryEncounterDialogue;
+  dialogue?: MysteryEncounterDialogue = {};
   encounterTier?: MysteryEncounterTier;
   encounterAnimations?: EncounterAnim[];
   requirements?: EncounterSceneRequirement[] = [];
@@ -460,6 +460,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * There should be at least 2 options defined and no more than 4.
    * If complex use {@linkcode MysteryEncounterBuilder.withOption}
    *
+   * @param hasDexProgress -
    * @param dialogue - {@linkcode OptionTextDisplay}
    * @param callback - {@linkcode OptionPhaseCallback}
    * @returns
@@ -468,6 +469,24 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
     return this.withOption(new MysteryEncounterOptionBuilder().withOptionMode(EncounterOptionMode.DEFAULT).withDialogue(dialogue).withOptionPhase(callback).build());
   }
 
+  /**
+   * Defines an option + phasefor the encounter.
+   * Use for easy/streamlined options.
+   * There should be at least 2 options defined and no more than 4.
+   * If complex use {@linkcode MysteryEncounterBuilder.withOption}
+   *
+   * @param dialogue - {@linkcode OptionTextDisplay}
+   * @param callback - {@linkcode OptionPhaseCallback}
+   * @returns
+   */
+  withSimpleDexProgressOption(dialogue: OptionTextDisplay, callback: OptionPhaseCallback): this & Pick<IMysteryEncounter, "options"> {
+    return this.withOption(new MysteryEncounterOptionBuilder()
+      .withOptionMode(EncounterOptionMode.DEFAULT)
+      .withHasDexProgress(true)
+      .withDialogue(dialogue)
+      .withOptionPhase(callback).build());
+  }
+
   /**
    * Defines the sprites that will be shown on the enemy field when the encounter spawns
    * Can be one or more sprites, recommended not to exceed 4
@@ -478,7 +497,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
     return Object.assign(this, { spriteConfigs: spriteConfigs });
   }
 
-  withIntroDialogue(dialogue: MysteryEncounterDialogue["intro"] = []) {
+  withIntroDialogue(dialogue: MysteryEncounterDialogue["intro"] = []): this {
     this.dialogue = {...this.dialogue, intro: dialogue };
     return this;
   }
@@ -550,7 +569,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * @param max optional max wave. If not given, defaults to min => exact wave
    * @returns
    */
-  withSceneWaveRangeRequirement(min: number, max?: number) {
+  withSceneWaveRangeRequirement(min: number, max?: number): this & Required<Pick<IMysteryEncounter, "requirements">> {
     return this.withSceneRequirement(new WaveRangeRequirement([min, max ?? min]));
   }
 
@@ -559,10 +578,11 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    *
    * @param min min wave (or exact size if only min is given)
    * @param max optional max size. If not given, defaults to min => exact wave
+   * @param excludeFainted - if true, only counts unfainted mons
    * @returns
    */
-  withScenePartySizeRequirement(min: number, max?: number) {
+  withScenePartySizeRequirement(min: number, max?: number, excludeFainted?: boolean): this & Required<Pick<IMysteryEncounter, "requirements">> {
-    return this.withSceneRequirement(new PartySizeRequirement([min, max ?? min]));
+    return this.withSceneRequirement(new PartySizeRequirement([min, max ?? min], excludeFainted));
   }
 
   /**
@@ -700,7 +720,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * @param title - title of the encounter
    * @returns
    */
-  withTitle(title: string) {
+  withTitle(title: string): this {
     const encounterOptionsDialogue = this.dialogue.encounterOptionsDialogue ?? {};
 
     this.dialogue = {
@@ -720,7 +740,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * @param description - description of the encounter
    * @returns
    */
-  withDescription(description: string) {
+  withDescription(description: string): this {
     const encounterOptionsDialogue = this.dialogue.encounterOptionsDialogue ?? {};
 
     this.dialogue = {
@@ -740,7 +760,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * @param query - query to use for the encounter
    * @returns
    */
-  withQuery(query: string) {
+  withQuery(query: string): this {
     const encounterOptionsDialogue = this.dialogue.encounterOptionsDialogue ?? {};
 
     this.dialogue = {
@@ -760,7 +780,7 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
    * @param dialogue - outro dialogue/s
    * @returns
    */
-  withOutroDialogue(dialogue: MysteryEncounterDialogue["outro"] = []) {
+  withOutroDialogue(dialogue: MysteryEncounterDialogue["outro"] = []): this {
     this.dialogue = {...this.dialogue, outro: dialogue };
     return this;
   }
@@ -768,10 +788,9 @@ export class MysteryEncounterBuilder implements Partial<IMysteryEncounter> {
   /**
    * Builds the mystery encounter
    *
-   * @param this - MysteryEncounter
    * @returns
    */
-  build(this: IMysteryEncounter) {
+  build(this: IMysteryEncounter): IMysteryEncounter {
     return new IMysteryEncounter(this);
   }
 }

src/data/mystery-encounters/mystery-encounters.ts

@@ -14,10 +14,11 @@ import IMysteryEncounter from "./mystery-encounter";
 import { SafariZoneEncounter } from "#app/data/mystery-encounters/encounters/safari-zone-encounter";
 import { FieryFalloutEncounter } from "#app/data/mystery-encounters/encounters/fiery-fallout-encounter";
 import { TheStrongStuffEncounter } from "#app/data/mystery-encounters/encounters/the-strong-stuff-encounter";
+import { PokemonSalesmanEncounter } from "#app/data/mystery-encounters/encounters/pokemon-salesman-encounter";
 
 // Spawn chance: (BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT + WIGHT_INCREMENT_ON_SPAWN_MISS * <number of missed spawns>) / 256
 export const BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT = 1;
-export const WIGHT_INCREMENT_ON_SPAWN_MISS = 5;
+export const WEIGHT_INCREMENT_ON_SPAWN_MISS = 5;
 export const AVERAGE_ENCOUNTERS_PER_RUN_TARGET = 15;
 
 export const EXTREME_ENCOUNTER_BIOMES = [
@@ -132,14 +133,14 @@ const nonExtremeBiomeEncounters: MysteryEncounterType[] = [
 
 const humanTransitableBiomeEncounters: MysteryEncounterType[] = [
   MysteryEncounterType.MYSTERIOUS_CHALLENGERS,
-  MysteryEncounterType.SHADY_VITAMIN_DEALER
+  MysteryEncounterType.SHADY_VITAMIN_DEALER,
+  MysteryEncounterType.POKEMON_SALESMAN
 ];
 
 const civilizationBiomeEncounters: MysteryEncounterType[] = [
   MysteryEncounterType.DEPARTMENT_STORE_SALE
 ];
 
-
 /**
  * To add an encounter to every biome possible, use this array
  */
@@ -225,6 +226,7 @@ export function initMysteryEncounters() {
   allMysteryEncounters[MysteryEncounterType.LOST_AT_SEA] = LostAtSeaEncounter;
   allMysteryEncounters[MysteryEncounterType.FIERY_FALLOUT] = FieryFalloutEncounter;
   allMysteryEncounters[MysteryEncounterType.THE_STRONG_STUFF] = TheStrongStuffEncounter;
+  allMysteryEncounters[MysteryEncounterType.POKEMON_SALESMAN] = PokemonSalesmanEncounter;
 
   // Add extreme encounters to biome map
   extremeBiomeEncounters.forEach(encounter => {

src/data/mystery-encounters/utils/encounter-dialogue-utils.ts

@@ -63,10 +63,12 @@ export function showEncounterText(scene: BattleScene, contentKey: string, callba
  * @param scene
  * @param textContentKey
  * @param speakerContentKey
- * @param callback
+ * @param callbackDelay
  */
-export function showEncounterDialogue(scene: BattleScene, textContentKey: string, speakerContentKey: string, callback?: Function) {
+export function showEncounterDialogue(scene: BattleScene, textContentKey: string, speakerContentKey: string, callbackDelay: number = 0): Promise<void> {
-  const text: string = getEncounterText(scene, textContentKey);
+  return new Promise<void>(resolve => {
-  const speaker: string = getEncounterText(scene, speakerContentKey);
+    const text: string = getEncounterText(scene, textContentKey);
-  scene.ui.showDialogue(text, speaker, null, callback, 0, 0);
+    const speaker: string = getEncounterText(scene, speakerContentKey);
+    scene.ui.showDialogue(text, speaker, null, () => resolve(), callbackDelay);
+  });
 }

src/data/mystery-encounters/utils/encounter-phase-utils.ts

@@ -1,7 +1,7 @@
 import { BattlerIndex, BattleType } from "#app/battle";
 import { biomeLinks } from "#app/data/biomes";
 import MysteryEncounterOption from "#app/data/mystery-encounters/mystery-encounter-option";
-import { WIGHT_INCREMENT_ON_SPAWN_MISS } from "#app/data/mystery-encounters/mystery-encounters";
+import { WEIGHT_INCREMENT_ON_SPAWN_MISS } from "#app/data/mystery-encounters/mystery-encounters";
 import { showEncounterText } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
 import Pokemon, { FieldPosition, PlayerPokemon, PokemonMove } from "#app/field/pokemon";
 import { ExpBalanceModifier, ExpShareModifier, MultipleParticipantExpBonusModifier, PokemonExpBoosterModifier } from "#app/modifier/modifier";
@@ -316,18 +316,21 @@ export function initCustomMovesForEncounter(scene: BattleScene, moves: Moves | M
  * @param scene - Battle Scene
  * @param changeValue
  * @param playSound
+ * @param showMessage
  */
-export function updatePlayerMoney(scene: BattleScene, changeValue: number, playSound: boolean = true) {
+export function updatePlayerMoney(scene: BattleScene, changeValue: number, playSound: boolean = true, showMessage: boolean = true) {
-  scene.money += changeValue;
+  scene.money = Math.min(Math.max(scene.money + changeValue, 0), Number.MAX_SAFE_INTEGER);
   scene.updateMoneyText();
   scene.animateMoneyChanged(false);
   if (playSound) {
     scene.playSound("buy");
   }
-  if (changeValue < 0) {
+  if (showMessage) {
-    scene.queueMessage(i18next.t("mysteryEncounter:paid_money", { amount: -changeValue }), null, true);
+    if (changeValue < 0) {
-  } else {
+      scene.queueMessage(i18next.t("mysteryEncounter:paid_money", { amount: -changeValue }), null, true);
-    scene.queueMessage(i18next.t("mysteryEncounter:receive_money", { amount: changeValue }), null, true);
+    } else {
+      scene.queueMessage(i18next.t("mysteryEncounter:receive_money", { amount: changeValue }), null, true);
+    }
   }
 }
 
@@ -399,6 +402,7 @@ export function selectPokemonForOption(scene: BattleScene, onPokemonSelected: (p
               }).concat({
                 label: i18next.t("menu:cancel"),
                 handler: () => {
+                  scene.ui.clearText();
                   scene.ui.setMode(Mode.MYSTERY_ENCOUNTER);
                   resolve(false);
                   return true;
@@ -730,12 +734,18 @@ export function calculateMEAggregateStats(scene: BattleScene, baseSpawnWeight: n
   const numRuns = 1000;
   let run = 0;
   const targetEncountersPerRun = 15; // AVERAGE_ENCOUNTERS_PER_RUN_TARGET
+  const biomes = Object.keys(Biome).filter(key => isNaN(Number(key)));
+  const alwaysPickTheseBiomes = [Biome.ISLAND, Biome.ABYSS, Biome.WASTELAND, Biome.FAIRY_CAVE, Biome.TEMPLE, Biome.LABORATORY, Biome.SPACE, Biome.WASTELAND];
 
-  const calculateNumEncounters = (): number[] => {
+  const calculateNumEncounters = (): any[] => {
     let encounterRate = baseSpawnWeight; // BASE_MYSTERY_ENCOUNTER_SPAWN_WEIGHT
     const numEncounters = [0, 0, 0, 0];
+    const encountersByBiome = new Map<string, number>(biomes.map(b => [b, 0]));
+    const validMEfloorsByBiome = new Map<string, number>(biomes.map(b => [b, 0]));
     let currentBiome = Biome.TOWN;
     let currentArena = scene.newArena(currentBiome);
+    scene.setSeed(Utils.randomString(24));
+    scene.resetSeed();
     for (let i = 10; i < 180; i++) {
       // Boss
       if (i % 10 === 0) {
@@ -748,10 +758,17 @@ export function calculateMEAggregateStats(scene: BattleScene, baseSpawnWeight: n
           let biomes: Biome[];
           scene.executeWithSeedOffset(() => {
             biomes = (biomeLinks[currentBiome] as (Biome | [Biome, integer])[])
-              .filter(b => !Array.isArray(b) || !Utils.randSeedInt(b[1]))
+              .filter(b => {
+                return !Array.isArray(b) || !Utils.randSeedInt(b[1]);
+              })
               .map(b => !Array.isArray(b) ? b : b[0]);
-          }, i);
+          }, i * 100);
-          currentBiome = biomes[Utils.randSeedInt(biomes.length)];
+          const specialBiomes = biomes.filter(b => alwaysPickTheseBiomes.includes(b));
+          if (specialBiomes.length > 0) {
+            currentBiome = specialBiomes[Utils.randSeedInt(specialBiomes.length)];
+          } else {
+            currentBiome = biomes[Utils.randSeedInt(biomes.length)];
+          }
         } else if (biomeLinks.hasOwnProperty(currentBiome)) {
           currentBiome = (biomeLinks[currentBiome] as Biome);
         } else {
@@ -778,6 +795,7 @@ export function calculateMEAggregateStats(scene: BattleScene, baseSpawnWeight: n
       // Otherwise, roll encounter
 
       const roll = Utils.randSeedInt(256);
+      validMEfloorsByBiome.set(Biome[currentBiome], validMEfloorsByBiome.get(Biome[currentBiome]) + 1);
 
       // If total number of encounters is lower than expected for the run, slightly favor a new encounter
       // Do the reverse as well
@@ -803,31 +821,63 @@ export function calculateMEAggregateStats(scene: BattleScene, baseSpawnWeight: n
         const rareThreshold = totalWeight - tierWeights[0] - tierWeights[1] - tierWeights[2]; // 64 - 32 - 16 - 10 = 6
 
         tierValue > commonThreshold ? ++numEncounters[0] : tierValue > uncommonThreshold ? ++numEncounters[1] : tierValue > rareThreshold ? ++numEncounters[2] : ++numEncounters[3];
+        encountersByBiome.set(Biome[currentBiome], encountersByBiome.get(Biome[currentBiome]) + 1);
       } else {
-        encounterRate += WIGHT_INCREMENT_ON_SPAWN_MISS;
+        encounterRate += WEIGHT_INCREMENT_ON_SPAWN_MISS;
       }
     }
 
-    return numEncounters;
+    return [numEncounters, encountersByBiome, validMEfloorsByBiome];
   };
 
-  const runs = [];
+  const encounterRuns: number[][] = [];
+  const encountersByBiomeRuns: Map<string, number>[] = [];
+  const validFloorsByBiome: Map<string, number>[] = [];
   while (run < numRuns) {
     scene.executeWithSeedOffset(() => {
-      const numEncounters = calculateNumEncounters();
+      const [numEncounters, encountersByBiome, validMEfloorsByBiome] = calculateNumEncounters();
-      runs.push(numEncounters);
+      encounterRuns.push(numEncounters);
+      encountersByBiomeRuns.push(encountersByBiome);
+      validFloorsByBiome.push(validMEfloorsByBiome);
     }, 1000 * run);
     run++;
   }
 
-  const n = runs.length;
+  const n = encounterRuns.length;
-  const totalEncountersInRun = runs.map(run => run.reduce((a, b) => a + b));
+  const totalEncountersInRun = encounterRuns.map(run => run.reduce((a, b) => a + b));
   const totalMean = totalEncountersInRun.reduce((a, b) => a + b) / n;
   const totalStd = Math.sqrt(totalEncountersInRun.map(x => Math.pow(x - totalMean, 2)).reduce((a, b) => a + b) / n);
-  const commonMean = runs.reduce((a, b) => a + b[0], 0) / n;
+  const commonMean = encounterRuns.reduce((a, b) => a + b[0], 0) / n;
-  const uncommonMean = runs.reduce((a, b) => a + b[1], 0) / n;
+  const uncommonMean = encounterRuns.reduce((a, b) => a + b[1], 0) / n;
-  const rareMean = runs.reduce((a, b) => a + b[2], 0) / n;
+  const rareMean = encounterRuns.reduce((a, b) => a + b[2], 0) / n;
-  const superRareMean = runs.reduce((a, b) => a + b[3], 0) / n;
+  const superRareMean = encounterRuns.reduce((a, b) => a + b[3], 0) / n;
 
-  console.log(`Starting weight: ${baseSpawnWeight}\nAverage MEs per run: ${totalMean}\nStandard Deviation: ${totalStd}\nAvg Commons: ${commonMean}\nAvg Uncommons: ${uncommonMean}\nAvg Rares: ${rareMean}\nAvg Super Rares: ${superRareMean}`);
+  const encountersPerRunPerBiome = encountersByBiomeRuns.reduce((a, b) => {
+    for (const biome of a.keys()) {
+      a.set(biome, a.get(biome) + b.get(biome));
+    }
+    return a;
+  });
+  const meanEncountersPerRunPerBiome: Map<string, number> = new Map<string, number>();
+  encountersPerRunPerBiome.forEach((value, key) => {
+    meanEncountersPerRunPerBiome.set(key, value / n);
+  });
+
+  const validMEFloorsPerRunPerBiome = validFloorsByBiome.reduce((a, b) => {
+    for (const biome of a.keys()) {
+      a.set(biome, a.get(biome) + b.get(biome));
+    }
+    return a;
+  });
+  const meanMEFloorsPerRunPerBiome: Map<string, number> = new Map<string, number>();
+  validMEFloorsPerRunPerBiome.forEach((value, key) => {
+    meanMEFloorsPerRunPerBiome.set(key, value / n);
+  });
+
+  let stats = `Starting weight: ${baseSpawnWeight}\nAverage MEs per run: ${totalMean}\nStandard Deviation: ${totalStd}\nAvg Commons: ${commonMean}\nAvg Greats: ${uncommonMean}\nAvg Ultras: ${rareMean}\nAvg Rogues: ${superRareMean}\n`;
+
+  const meanEncountersPerRunPerBiomeSorted = [...meanEncountersPerRunPerBiome.entries()].sort((e1, e2) => e2[1] - e1[1]);
+  meanEncountersPerRunPerBiomeSorted.forEach(value => stats = stats + `${value[0]}: avg valid floors ${meanMEFloorsPerRunPerBiome.get(value[0])}, avg MEs ${value[1]},\n`);
+
+  console.log(stats);
 }

src/data/mystery-encounters/utils/encounter-pokemon-utils.ts

@@ -17,6 +17,7 @@ import { Type } from "#app/data/type";
 import PokemonSpecies, { getPokemonSpecies, speciesStarters } from "#app/data/pokemon-species";
 import { queueEncounterMessage, showEncounterText } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
 import { getPokemonNameWithAffix } from "#app/messages";
+import { modifierTypes } from "#app/modifier/modifier-type";
 
 export interface MysteryEncounterPokemonData {
   spriteScale?: number
@@ -204,13 +205,11 @@ export function applyHealToPokemon(scene: BattleScene, pokemon: PlayerPokemon, h
  * @param pokemon
  * @param value
  */
-export function modifyPlayerPokemonBST(pokemon: PlayerPokemon, value: number) {
+export async function modifyPlayerPokemonBST(pokemon: PlayerPokemon, value: number) {
-  pokemon.getSpeciesForm().baseStats = [...pokemon.getSpeciesForm().baseStats].map(v => {
+  const modType = modifierTypes.MYSTERY_ENCOUNTER_SHUCKLE_JUICE().generateType(null, [value]);
-    const newVal = Math.floor(v + value);
+  const modifier = modType.newModifier(pokemon);
-    return Math.max(newVal, 1);
+  await pokemon.scene.addModifier(modifier, false, false, false, true);
-  });
   pokemon.calculateStats();
-  pokemon.updateInfo();
 }
 
 /**
@@ -387,7 +386,7 @@ function failCatch(scene: BattleScene, pokemon: EnemyPokemon, originalY: number,
   });
 }
 
-function catchPokemon(scene: BattleScene, pokemon: EnemyPokemon, pokeball: Phaser.GameObjects.Sprite, pokeballType: PokeballType): Promise<void> {
+export async function catchPokemon(scene: BattleScene, pokemon: EnemyPokemon, pokeball: Phaser.GameObjects.Sprite, pokeballType: PokeballType, isObtain: boolean = false): Promise<void> {
   scene.unshiftPhase(new VictoryPhase(scene, BattlerIndex.ENEMY));
 
   const speciesForm = !pokemon.fusionSpecies ? pokemon.getSpeciesForm() : pokemon.getFusionSpeciesForm();
@@ -413,14 +412,16 @@ function catchPokemon(scene: BattleScene, pokemon: EnemyPokemon, pokeball: Phase
   scene.gameData.updateSpeciesDexIvs(pokemon.species.getRootSpeciesId(true), pokemon.ivs);
 
   return new Promise(resolve => {
-    scene.ui.showText(i18next.t("battle:pokemonCaught", { pokemonName: pokemon.name }), null, () => {
+    scene.ui.showText(i18next.t(isObtain ? "battle:pokemonObtained" : "battle:pokemonCaught", { pokemonName: pokemon.name }), null, () => {
       const end = () => {
         scene.pokemonInfoContainer.hide();
         removePb(scene, pokeball);
         resolve();
       };
       const removePokemon = () => {
-        scene.field.remove(pokemon, true);
+        if (pokemon) {
+          scene.field.remove(pokemon, true);
+        }
       };
       const addToParty = () => {
         const newPokemon = pokemon.addToParty(pokeballType);
@@ -471,14 +472,18 @@ function catchPokemon(scene: BattleScene, pokemon: EnemyPokemon, pokeball: Phase
 }
 
 function removePb(scene: BattleScene, pokeball: Phaser.GameObjects.Sprite) {
-  scene.tweens.add({
+  if (pokeball) {
-    targets: pokeball,
+    scene.tweens.add({
-    duration: 250,
+      targets: pokeball,
-    delay: 250,
+      duration: 250,
-    ease: "Sine.easeIn",
+      delay: 250,
-    alpha: 0,
+      ease: "Sine.easeIn",
-    onComplete: () => pokeball.destroy()
+      alpha: 0,
-  });
+      onComplete: () => {
+        pokeball.destroy();
+      }
+    });
+  }
 }
 
 export async function doPokemonFlee(scene: BattleScene, pokemon: EnemyPokemon): Promise<void> {

src/enums/mystery-encounter-type.ts

@@ -11,5 +11,6 @@ export enum MysteryEncounterType {
   SAFARI_ZONE,
   LOST_AT_SEA, //might be generalized later on
   FIERY_FALLOUT,
-  THE_STRONG_STUFF
+  THE_STRONG_STUFF,
+  POKEMON_SALESMAN
 }

src/field/mystery-encounter-intro.ts

@@ -17,6 +17,13 @@ type KnownFileRoot =
   | "mystery-encounters"
   | "pokeball"
   | "pokemon"
+  | "pokemon/back"
+  | "pokemon/exp"
+  | "pokemon/female"
+  | "pokemon/icons"
+  | "pokemon/input"
+  | "pokemon/shiny"
+  | "pokemon/variant"
   | "statuses"
   | "trainer"
   | "ui";
@@ -25,7 +32,7 @@ export class MysteryEncounterSpriteConfig {
   /** The sprite key (which is the image file name). e.g. "ace_trainer_f" */
   spriteKey: string;
   /** Refer to [/public/images](../../public/images) directorty for all folder names */
-  fileRoot: KnownFileRoot & string;
+  fileRoot: KnownFileRoot & string | string;
   /** Enable shadow. Defaults to `false` */
   hasShadow?: boolean = false;
   /** Disable animation. Defaults to `false` */
@@ -44,6 +51,8 @@ export class MysteryEncounterSpriteConfig {
   yShadow?: number;
   /** Sprite scale. `0` - `n` */
   scale?: number;
+  /** If you are using a Pokemon sprite, set to `true`. This will ensure variant, form, gender, shiny sprites are loaded properly */
+  isPokemon?: boolean;
   /** If you are using an item sprite, set to `true` */
   isItem?: boolean;
   /** The sprites alpha. `0` - `1` The lower the number, the more transparent */
@@ -155,13 +164,18 @@ export default class MysteryEncounterIntroVisuals extends Phaser.GameObjects.Con
       }
 
       this.spriteConfigs.forEach((config) => {
-        if (!config.isItem) {
+        if (config.isPokemon) {
-          this.scene.loadAtlas(config.spriteKey, config.fileRoot);
+          this.scene.loadPokemonAtlas(config.spriteKey, config.fileRoot);
-        } else {
+        } else if (config.isItem) {
           this.scene.loadAtlas("items", "");
+        } else {
+          this.scene.loadAtlas(config.spriteKey, config.fileRoot);
         }
       });
 
+      // Load dex progress icon
+      this.scene.loadAtlas("encounter_radar", "mystery-encounters");
+
       this.scene.load.once(Phaser.Loader.Events.COMPLETE, () => {
         this.spriteConfigs.every((config) => {
           if (config.isItem) {

src/field/pokemon.ts

@@ -10,7 +10,7 @@ import * as Utils from "../utils";
 import { Type, TypeDamageMultiplier, getTypeDamageMultiplier, getTypeRgb } from "../data/type";
 import { getLevelTotalExp } from "../data/exp";
 import { Stat } from "../data/pokemon-stat";
-import { AttackTypeBoosterModifier, DamageMoneyRewardModifier, EnemyDamageBoosterModifier, EnemyDamageReducerModifier, EnemyEndureChanceModifier, EnemyFusionChanceModifier, HiddenAbilityRateBoosterModifier, PokemonBaseStatModifier, PokemonFriendshipBoosterModifier, PokemonHeldItemModifier, PokemonMultiHitModifier, PokemonNatureWeightModifier, ShinyRateBoosterModifier, SurviveDamageModifier, TempBattleStatBoosterModifier, StatBoosterModifier, TerastallizeModifier } from "../modifier/modifier";
+import { AttackTypeBoosterModifier, DamageMoneyRewardModifier, EnemyDamageBoosterModifier, EnemyDamageReducerModifier, EnemyEndureChanceModifier, EnemyFusionChanceModifier, HiddenAbilityRateBoosterModifier, PokemonBaseStatModifier, PokemonFriendshipBoosterModifier, PokemonHeldItemModifier, PokemonMultiHitModifier, PokemonNatureWeightModifier, ShinyRateBoosterModifier, SurviveDamageModifier, TempBattleStatBoosterModifier, StatBoosterModifier, TerastallizeModifier, PokemonBaseStatTotalModifier } from "../modifier/modifier";
 import { PokeballType } from "../data/pokeball";
 import { Gender } from "../data/gender";
 import { initMoveAnim, loadMoveAnimAssets } from "../data/battle-anims";
@@ -731,6 +731,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
       this.stats = [ 0, 0, 0, 0, 0, 0 ];
     }
     const baseStats = this.getSpeciesForm().baseStats.slice(0);
+    this.scene.applyModifiers(PokemonBaseStatTotalModifier, this.isPlayer(), this, baseStats);
     if (this.fusionSpecies) {
       const fusionBaseStats = this.getFusionSpeciesForm().baseStats;
       for (let s = 0; s < this.stats.length; s++) {

src/locales/en/battle.ts

@@ -16,6 +16,7 @@ export const battle: SimpleTranslationEntries = {
   "moneyWon": "You got\n₽{{moneyAmount}} for winning!",
   "moneyPickedUp": "You picked up ₽{{moneyAmount}}!",
   "pokemonCaught": "{{pokemonName}} was caught!",
+  "pokemonObtained": "You got {{pokemonName}}!",
   "pokemonBrokeFree": "Oh no!\nThe Pokémon broke free!",
   "pokemonFled": "The wild {{pokemonName}} fled!",
   "playerFled": "You fled from the {{pokemonName}}!",

src/locales/en/modifier-type.ts

@@ -66,6 +66,16 @@ export const modifierType: ModifierTypeTranslationEntries = {
     "PokemonBaseStatBoosterModifierType": {
       description: "Increases the holder's base {{statName}} by 10%. The higher your IVs, the higher the stack limit.",
     },
+    "PokemonBaseStatTotalModifierType": {
+      name: "Shuckle Juice",
+      description: "{{increaseDecrease}} all of the holder's base stats by {{statValue}}. You were {{blessCurse}} by the Shuckle.",
+      extra: {
+        "increase": "Increases",
+        "decrease": "Decreases",
+        "blessed": "blessed",
+        "cursed": "cursed"
+      },
+    },
     "AllPokemonFullHpRestoreModifierType": {
       description: "Restores 100% HP for all Pokémon.",
     },
@@ -240,6 +250,8 @@ export const modifierType: ModifierTypeTranslationEntries = {
     "ENEMY_STATUS_EFFECT_HEAL_CHANCE": { name: "Full Heal Token", description: "Adds a 2.5% chance every turn to heal a status condition." },
     "ENEMY_ENDURE_CHANCE": { name: "Endure Token" },
     "ENEMY_FUSED_CHANCE": { name: "Fusion Token", description: "Adds a 1% chance that a wild Pokémon will be a fusion." },
+
+    "MYSTERY_ENCOUNTER_SHUCKLE_JUICE": { name: "Shuckle Juice" },
   },
   SpeciesBoosterItem: {
     "LIGHT_BALL": { name: "Light Ball", description: "It's a mysterious orb that boosts Pikachu's Attack and Sp. Atk stats." },

src/locales/en/mystery-encounter.ts

@@ -11,6 +11,7 @@ import { shadyVitaminDealerDialogue } from "#app/locales/en/mystery-encounters/s
 import { slumberingSnorlaxDialogue } from "#app/locales/en/mystery-encounters/slumbering-snorlax-dialogue";
 import { trainingSessionDialogue } from "#app/locales/en/mystery-encounters/training-session-dialogue";
 import { theStrongStuffDialogue } from "#app/locales/en/mystery-encounters/the-strong-stuff-dialogue";
+import { pokemonSalesmanDialogue } from "#app/locales/en/mystery-encounters/pokemon-salesman-dialogue";
 
 /**
  * Patterns that can be used:
@@ -32,6 +33,7 @@ export const mysteryEncounter = {
   // General use content
   "paid_money": "You paid ₽{{amount, number}}.",
   "receive_money": "You received ₽{{amount, number}}!",
+  "affects_pokedex": "Affects Pokédex Data",
 
   mysteriousChallengers: mysteriousChallengersDialogue,
   mysteriousChest: mysteriousChestDialogue,
@@ -46,4 +48,5 @@ export const mysteryEncounter = {
   lostAtSea: lostAtSeaDialogue,
   fieryFallout: fieryFalloutDialogue,
   theStrongStuff: theStrongStuffDialogue,
+  pokemonSalesman: pokemonSalesmanDialogue
 } as const;

src/locales/en/mystery-encounters/fight-or-flight-dialogue.ts

@@ -10,7 +10,7 @@ export const fightOrFlightDialogue = {
       selected: "You approach the\nPokémon without fear.",
     },
     2: {
-      label: "{{option2PrimaryName}} can help",
+      label: "Steal the item",
       tooltip: "@[SUMMARY_GREEN]{(35%) Steal Item}\n@[SUMMARY_BLUE]{(65%) Harder Battle}",
       tooltip_special: "(+) {{option2PrimaryName}} uses {{option2PrimaryMove}}",
       good_result: `.@d{32}.@d{32}.@d{32}

src/locales/en/mystery-encounters/pokemon-salesman-dialogue.ts

@@ -0,0 +1,26 @@
+export const pokemonSalesmanDialogue = {
+  intro: "A chipper elderly man approaches you.",
+  speaker: "Gentleman",
+  intro_dialogue: "Hello there! Have I got a deal just for YOU!",
+  title: "The Pokémon Salesman",
+  description: "\"This {{purchasePokemon}} is extremely unique and carries an ability not normally found in its species! I'll let you have this swell {{purchasePokemon}} for just {{price, money}}!\"\n\n\"What do you say?\"",
+  description_shiny: "\"This {{purchasePokemon}} is extremely unique and has a pigment not normally found in its species! I'll let you have this swell {{purchasePokemon}} for just {{price, money}}!\"\n\n\"What do you say?\"",
+  query: "What will you do?",
+  option: {
+    1: {
+      label: "Accept",
+      tooltip: "(-) Pay {{price, money}}\n(+) Gain a {{purchasePokemon}} with its Hidden Ability",
+      tooltip_shiny: "(-) Pay {{price, money}}\n(+) Gain a shiny {{purchasePokemon}}",
+      selected_message: "You paid an outrageous sum and bought the {{purchasePokemon}}.",
+      selected_dialogue: `Excellent choice!
+      $I can see you've a keen eye for business.
+      $Oh, yeah...@d{64} Returns not accepted, got that?`,
+    },
+    2: {
+      label: "Refuse",
+      tooltip: "(-) No Rewards",
+      selected: `No?@d{32} You say no?
+        $I'm only doing this as a favor to you!`,
+    },
+  },
+};

src/locales/en/mystery-encounters/training-session-dialogue.ts

@@ -3,6 +3,7 @@ export const trainingSessionDialogue = {
   title: "Training Session",
   description: "These supplies look like they could be used to train a member of your party! There are a few ways you could train your Pokémon, by battling against it with the rest of your team.",
   query: "How should you train?",
+  invalid_selection: "Pokémon must be healthy enough.",
   option: {
     1: {
       label: "Light Training",
@@ -19,7 +20,7 @@ export const trainingSessionDialogue = {
     },
     3: {
       label: "Heavy Training",
-      tooltip: "(-) Each of your Pokémon lose {{damagePercentage}}% of their total HP",
+      tooltip: "(-) Harsh Battle\n(+) Change Pokémon's Ability",
       select_prompt: "Select a new ability\nto train your Pokémon in.",
       finished: `{{selectedPokemon}} returns, feeling\nworn out but accomplished!
         $Its ability was changed to {{ability}}!`,

src/modifier/modifier-type.ts

@@ -621,6 +621,27 @@ export class PokemonBaseStatBoosterModifierType extends PokemonHeldItemModifierT
   }
 }
 
+export class PokemonBaseStatTotalModifierType extends PokemonHeldItemModifierType implements GeneratedPersistentModifierType {
+  private readonly statModifier: integer;
+
+  constructor(statModifier: integer) {
+    super("modifierType:ModifierType.MYSTERY_ENCOUNTER_SHUCKLE_JUICE", "berry_juice", (_type, args) => new Modifiers.PokemonBaseStatTotalModifier(this, (args[0] as Pokemon).id, this.statModifier));
+    this.statModifier = statModifier;
+  }
+
+  getDescription(scene: BattleScene): string {
+    return i18next.t("modifierType:ModifierType.PokemonBaseStatTotalModifierType.description", {
+      increaseDecrease: i18next.t(this.statModifier >= 0 ? "modifierType:ModifierType.PokemonBaseStatTotalModifierType.extra.increase" : "modifierType:ModifierType.PokemonBaseStatTotalModifierType.extra.decrease"),
+      blessCurse: i18next.t(this.statModifier >= 0 ? "modifierType:ModifierType.PokemonBaseStatTotalModifierType.extra.blessed" : "modifierType:ModifierType.PokemonBaseStatTotalModifierType.extra.cursed"),
+      statValue: this.statModifier,
+    });
+  }
+
+  getPregenArgs(): any[] {
+    return [ this.statModifier ];
+  }
+}
+
 class AllPokemonFullHpRestoreModifierType extends ModifierType {
   private descriptionKey: string;
 
@@ -1354,6 +1375,13 @@ export const modifierTypes = {
   ENEMY_STATUS_EFFECT_HEAL_CHANCE: () => new ModifierType("modifierType:ModifierType.ENEMY_STATUS_EFFECT_HEAL_CHANCE", "wl_full_heal", (type, _args) => new Modifiers.EnemyStatusEffectHealChanceModifier(type, 2.5, 10)),
   ENEMY_ENDURE_CHANCE: () => new EnemyEndureChanceModifierType("modifierType:ModifierType.ENEMY_ENDURE_CHANCE", "wl_reset_urge", 2),
   ENEMY_FUSED_CHANCE: () => new ModifierType("modifierType:ModifierType.ENEMY_FUSED_CHANCE", "wl_custom_spliced", (type, _args) => new Modifiers.EnemyFusionChanceModifier(type, 1)),
+
+  MYSTERY_ENCOUNTER_SHUCKLE_JUICE: () => new ModifierTypeGenerator((party: Pokemon[], pregenArgs?: any[]) => {
+    if (pregenArgs) {
+      return new PokemonBaseStatTotalModifierType(pregenArgs[0] as integer);
+    }
+    return new PokemonBaseStatTotalModifierType(Utils.randSeedInt(20));
+  }),
 };
 
 interface ModifierPool {

src/modifier/modifier.ts

@@ -708,6 +708,55 @@ export class PokemonBaseStatModifier extends PokemonHeldItemModifier {
   }
 }
 
+export class PokemonBaseStatTotalModifier extends PokemonHeldItemModifier {
+  private statModifier: integer;
+
+  constructor(type: ModifierTypes.PokemonBaseStatTotalModifierType, pokemonId: integer, statModifier: integer, stackCount?: integer) {
+    super(type, pokemonId, stackCount);
+    this.statModifier = statModifier;
+  }
+
+  matchType(modifier: Modifier): boolean {
+    if (modifier instanceof PokemonBaseStatTotalModifier) {
+      return (modifier as PokemonBaseStatTotalModifier).statModifier === this.statModifier;
+    }
+    return false;
+  }
+
+  clone(): PersistentModifier {
+    return new PokemonBaseStatTotalModifier(this.type as ModifierTypes.PokemonBaseStatTotalModifierType, this.pokemonId, this.statModifier, this.stackCount);
+  }
+
+  getArgs(): any[] {
+    return super.getArgs().concat(this.statModifier);
+  }
+
+  shouldApply(args: any[]): boolean {
+    return super.shouldApply(args) && args.length === 2 && args[1] instanceof Array;
+  }
+
+  apply(args: any[]): boolean {
+    args[1].forEach((v, i) => {
+      const newVal = Math.floor(v + this.statModifier);
+      args[1][i] = Math.min(Math.max(newVal, 1), 999999);
+    });
+
+    return true;
+  }
+
+  getTransferrable(_withinParty: boolean): boolean {
+    return false;
+  }
+
+  getScoreMultiplier(): number {
+    return 1.2;
+  }
+
+  getMaxHeldItemCount(pokemon: Pokemon): integer {
+    return 2;
+  }
+}
+
 /**
  * Modifier used for held items that apply {@linkcode Stat} boost(s)
  * using a multiplier.

src/test/mystery-encounter/encounters/pokemon-salesman-encounter.test.ts

@@ -0,0 +1,171 @@
+import * as MysteryEncounters from "#app/data/mystery-encounters/mystery-encounters";
+import { Biome } from "#app/enums/biome";
+import { MysteryEncounterType } from "#app/enums/mystery-encounter-type";
+import { Species } from "#app/enums/species";
+import GameManager from "#app/test/utils/gameManager";
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import Battle from "#app/battle";
+import * as EncounterPhaseUtils from "#app/data/mystery-encounters/utils/encounter-phase-utils";
+import { EncounterOptionMode } from "#app/data/mystery-encounters/mystery-encounter-option";
+import { runSelectMysteryEncounterOption } from "#test/mystery-encounter/encounterTestUtils";
+import BattleScene from "#app/battle-scene";
+import { MysteryEncounterTier } from "#app/data/mystery-encounters/mystery-encounter";
+import { PlayerPokemon } from "#app/field/pokemon";
+import { HUMAN_TRANSITABLE_BIOMES } from "#app/data/mystery-encounters/mystery-encounters";
+import { PokemonSalesmanEncounter } from "#app/data/mystery-encounters/encounters/pokemon-salesman-encounter";
+
+const namespace = "mysteryEncounter:pokemonSalesman";
+const defaultParty = [Species.LAPRAS, Species.GENGAR, Species.ABRA];
+const defaultBiome = Biome.CAVE;
+const defaultWave = 45;
+
+describe("The Pokemon Salesman - Mystery Encounter", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+  let scene: BattleScene;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({ type: Phaser.HEADLESS });
+  });
+
+  beforeEach(async () => {
+    game = new GameManager(phaserGame);
+    scene = game.scene;
+    game.override.mysteryEncounterChance(100);
+    game.override.mysteryEncounterTier(MysteryEncounterTier.COMMON);
+    game.override.startingWave(defaultWave);
+    game.override.startingBiome(defaultBiome);
+
+    const biomeMap = new Map<Biome, MysteryEncounterType[]>([
+      [Biome.VOLCANO, [MysteryEncounterType.MYSTERIOUS_CHALLENGERS]],
+    ]);
+    HUMAN_TRANSITABLE_BIOMES.forEach(biome => {
+      biomeMap.set(biome, [MysteryEncounterType.POKEMON_SALESMAN]);
+    });
+    vi.spyOn(MysteryEncounters, "mysteryEncountersByBiome", "get").mockReturnValue(biomeMap);
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+    vi.clearAllMocks();
+    vi.resetAllMocks();
+  });
+
+  it("should have the correct properties", async () => {
+    await game.runToMysteryEncounter(MysteryEncounterType.POKEMON_SALESMAN, defaultParty);
+
+    expect(PokemonSalesmanEncounter.encounterType).toBe(MysteryEncounterType.POKEMON_SALESMAN);
+    expect(PokemonSalesmanEncounter.encounterTier).toBe(MysteryEncounterTier.ULTRA);
+    expect(PokemonSalesmanEncounter.dialogue).toBeDefined();
+    expect(PokemonSalesmanEncounter.dialogue.intro).toStrictEqual([
+      { text: `${namespace}:intro` },
+      { speaker: "mysteryEncounter:pokemonSalesman:speaker", text: "mysteryEncounter:pokemonSalesman:intro_dialogue" }
+    ]);
+    expect(PokemonSalesmanEncounter.dialogue.encounterOptionsDialogue.title).toBe(`${namespace}:title`);
+    expect(PokemonSalesmanEncounter.dialogue.encounterOptionsDialogue.description).toBe(`${namespace}:description`);
+    expect(PokemonSalesmanEncounter.dialogue.encounterOptionsDialogue.query).toBe(`${namespace}:query`);
+    expect(PokemonSalesmanEncounter.options.length).toBe(2);
+  });
+
+  it("should not spawn outside of HUMAN_TRANSITABLE_BIOMES", async () => {
+    game.override.startingBiome(Biome.VOLCANO);
+    await game.runToMysteryEncounter();
+
+    expect(scene.currentBattle?.mysteryEncounter?.encounterType).not.toBe(MysteryEncounterType.POKEMON_SALESMAN);
+  });
+
+  it("should not run below wave 10", async () => {
+    game.override.startingWave(9);
+
+    await game.runToMysteryEncounter();
+
+    expect(scene.currentBattle?.mysteryEncounter?.encounterType).not.toBe(MysteryEncounterType.POKEMON_SALESMAN);
+  });
+
+  it("should not run above wave 179", async () => {
+    game.override.startingWave(181);
+
+    await game.runToMysteryEncounter();
+
+    expect(scene.currentBattle.mysteryEncounter).toBeUndefined();
+  });
+
+  it("should initialize fully ", async () => {
+    vi.spyOn(scene, "currentBattle", "get").mockReturnValue({ mysteryEncounter: PokemonSalesmanEncounter } as Battle);
+
+    const { onInit } = PokemonSalesmanEncounter;
+
+    expect(PokemonSalesmanEncounter.onInit).toBeDefined();
+
+    const onInitResult = onInit(scene);
+
+    expect(PokemonSalesmanEncounter.dialogueTokens?.purchasePokemon).toBeDefined();
+    expect(PokemonSalesmanEncounter.dialogueTokens?.price).toBeDefined();
+    expect(PokemonSalesmanEncounter.misc.pokemon instanceof PlayerPokemon).toBeTruthy();
+    expect(PokemonSalesmanEncounter.misc?.price?.toString()).toBe(PokemonSalesmanEncounter.dialogueTokens?.price);
+    expect(onInitResult).toBe(true);
+  });
+
+  describe("Option 1 - Purchase the pokemon", () => {
+    it("should have the correct properties", () => {
+      const option1 = PokemonSalesmanEncounter.options[0];
+      expect(option1.optionMode).toBe(EncounterOptionMode.DEFAULT_OR_SPECIAL);
+      expect(option1.dialogue).toBeDefined();
+      expect(option1.dialogue).toStrictEqual({
+        buttonLabel: `${namespace}:option:1:label`,
+        buttonTooltip: `${namespace}:option:1:tooltip`,
+        selected: [
+          {
+            text: `${namespace}:option:1:selected_message`,
+          },
+        ],
+      });
+    });
+
+    it("Should update the player's money properly", async () => {
+      const initialMoney = 20000;
+      scene.money = initialMoney;
+      const updateMoneySpy = vi.spyOn(EncounterPhaseUtils, "updatePlayerMoney");
+
+      await game.runToMysteryEncounter(MysteryEncounterType.POKEMON_SALESMAN, defaultParty);
+      await runSelectMysteryEncounterOption(game, 1);
+
+      const price = scene.currentBattle.mysteryEncounter.misc.price;
+
+      expect(updateMoneySpy).toHaveBeenCalledWith(scene, -price, true, false);
+      expect(scene.money).toBe(initialMoney - price);
+    });
+
+    it("Should add the Pokemon to the party", async () => {
+      await game.runToMysteryEncounter(MysteryEncounterType.POKEMON_SALESMAN, defaultParty);
+
+      const initialPartySize = scene.getParty().length;
+      const pokemonName = scene.currentBattle.mysteryEncounter.misc.pokemon.name;
+
+      await runSelectMysteryEncounterOption(game, 1);
+
+      expect(scene.getParty().length).toBe(initialPartySize + 1);
+      expect(scene.getParty().find(p => p.name === pokemonName) instanceof PlayerPokemon).toBeTruthy();
+    });
+
+    it("should leave encounter without battle", async () => {
+      const leaveEncounterWithoutBattleSpy = vi.spyOn(EncounterPhaseUtils, "leaveEncounterWithoutBattle");
+
+      await game.runToMysteryEncounter(MysteryEncounterType.POKEMON_SALESMAN, defaultParty);
+      await runSelectMysteryEncounterOption(game, 1);
+
+      expect(leaveEncounterWithoutBattleSpy).toBeCalled();
+    });
+  });
+
+  describe("Option 2 - Leave", () => {
+    it("should leave encounter without battle", async () => {
+      const leaveEncounterWithoutBattleSpy = vi.spyOn(EncounterPhaseUtils, "leaveEncounterWithoutBattle");
+
+      await game.runToMysteryEncounter(MysteryEncounterType.POKEMON_SALESMAN, defaultParty);
+      await runSelectMysteryEncounterOption(game, 2);
+
+      expect(leaveEncounterWithoutBattleSpy).toBeCalled();
+    });
+  });
+});

src/test/mystery-encounter/encounters/the-strong-stuff-encounter.test.ts

@@ -22,6 +22,7 @@ import { BattlerTagType } from "#enums/battler-tag-type";
 import { PokemonMove } from "#app/field/pokemon";
 import { Mode } from "#app/ui/ui";
 import ModifierSelectUiHandler from "#app/ui/modifier-select-ui-handler";
+import { PokemonBaseStatTotalModifier } from "#app/modifier/modifier";
 
 const namespace = "mysteryEncounter:theStrongStuff";
 const defaultParty = [Species.LAPRAS, Species.GENGAR, Species.ABRA];
@@ -153,7 +154,9 @@ describe("The Strong Stuff - Mystery Encounter", () => {
       await runSelectMysteryEncounterOption(game, 1);
 
       const bstsAfter = scene.getParty().map(p => {
-        return p.getSpeciesForm().getBaseStatTotal();
+        const baseStats = p.getSpeciesForm().baseStats.slice(0);
+        scene.applyModifiers(PokemonBaseStatTotalModifier, true, p, baseStats);
+        return baseStats.reduce((a, b) => a + b);
       });
 
       expect(bstsAfter[0]).toEqual(bstsPrior[0] - 20 * 6);

src/test/mystery-encounter/mystery-encounter-utils.test.ts

@@ -298,7 +298,7 @@ describe("Mystery Encounter Utils", () => {
       const spy = vi.spyOn(game.scene.ui, "showDialogue");
 
       showEncounterDialogue(scene, "mysteryEncounter:unit_test_dialogue", "mysteryEncounter:unit_test_dialogue");
-      expect(spy).toHaveBeenCalledWith("valuevalue {{testvalue}} {{test1}} {{test}} {{test\\}} {{test\\}} {test}}", "valuevalue {{testvalue}} {{test1}} {{test}} {{test\\}} {{test\\}} {test}}", null, undefined, 0, 0);
+      expect(spy).toHaveBeenCalledWith("valuevalue {{testvalue}} {{test1}} {{test}} {{test\\}} {{test\\}} {test}}", "valuevalue {{testvalue}} {{test1}} {{test}} {{test\\}} {{test\\}} {test}}", null, expect.any(Function), 0);
     });
   });
 

src/test/utils/mocks/mocksContainer/mockText.ts

@@ -248,6 +248,14 @@ export default class MockText {
     };
   }
 
+  disableInteractive() {
+    // Disables interaction with this Game Object.
+  }
+
+  clearTint() {
+    // Clears tint on this Game Object.
+  }
+
   add(obj) {
     // Adds a child to this Game Object.
     this.list.push(obj);

src/ui/mystery-encounter-ui-handler.ts

@@ -13,6 +13,7 @@ import { getPokeballAtlasKey } from "../data/pokeball";
 import { OptionSelectSettings } from "#app/data/mystery-encounters/utils/encounter-phase-utils";
 import { getEncounterText } from "#app/data/mystery-encounters/utils/encounter-dialogue-utils";
 import { MysteryEncounterTier } from "#app/data/mystery-encounters/mystery-encounter";
+import i18next from "i18next";
 
 export default class MysteryEncounterUiHandler extends UiHandler {
   private cursorContainer: Phaser.GameObjects.Container;
@@ -29,6 +30,10 @@ export default class MysteryEncounterUiHandler extends UiHandler {
   private descriptionScrollTween: Phaser.Tweens.Tween;
   private rarityBall: Phaser.GameObjects.Sprite;
 
+  private dexProgressWindow: Phaser.GameObjects.NineSlice;
+  private dexProgressContainer: Phaser.GameObjects.Container;
+  private showDexProgress: boolean = false;
+
   private overrideSettings: OptionSelectSettings;
   private encounterOptions: MysteryEncounterOption[] = [];
   private optionsMeetsReqs: boolean[];
@@ -50,6 +55,9 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     this.optionsContainer = this.scene.add.container(12, -38.7);
     this.optionsContainer.setVisible(false);
     ui.add(this.optionsContainer);
+    this.dexProgressContainer = this.scene.add.container(214, -43);
+    this.dexProgressContainer.setVisible(false);
+    ui.add(this.dexProgressContainer);
     this.descriptionContainer = this.scene.add.container(0, -152);
     this.descriptionContainer.setVisible(false);
     ui.add(this.descriptionContainer);
@@ -65,9 +73,23 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     this.tooltipWindow = addWindow(this.scene, 0, 0, 110, 48, false, false, 0, 0, WindowVariant.THIN);
     this.tooltipContainer.add(this.tooltipWindow);
 
+    this.dexProgressWindow = addWindow(this.scene, 0, 0, 24, 28, false, false, 0, 0, WindowVariant.THIN);
+    this.dexProgressContainer.add(this.dexProgressWindow);
+
     this.rarityBall = this.scene.add.sprite(141, 9, "pb");
     this.rarityBall.setScale(0.75);
     this.descriptionContainer.add(this.rarityBall);
+
+    const dexProgressIndicator = this.scene.add.sprite(12, 9,  "encounter_radar");
+    dexProgressIndicator.setScale(0.85);
+    this.dexProgressContainer.add(dexProgressIndicator);
+    this.dexProgressContainer.setInteractive(new Phaser.Geom.Rectangle(0, 0, 24, 28), Phaser.Geom.Rectangle.Contains);
+    this.dexProgressContainer.on("pointerover", () => {
+      (this.scene as BattleScene).ui.showTooltip(null, i18next.t("mysteryEncounter:affects_pokedex"), true);
+    });
+    this.dexProgressContainer.on("pointerout", () => {
+      (this.scene as BattleScene).ui.hideTooltip();
+    });
   }
 
   show(args: any[]): boolean {
@@ -81,6 +103,7 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     this.cursorContainer.setVisible(true);
     this.descriptionContainer.setVisible(showDescriptionContainer);
     this.optionsContainer.setVisible(true);
+    this.dexProgressContainer.setVisible(true);
     this.displayEncounterOptions(slideInDescription);
     const cursor = this.getCursor();
     if (cursor === (this?.optionsContainer?.length || 0) - 1) {
@@ -317,7 +340,7 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     const queryText: string = getEncounterText(this.scene, mysteryEncounter.dialogue.encounterOptionsDialogue.query, TextStyle.TOOLTIP_CONTENT);
 
     // Clear options container (except cursor)
-    this.optionsContainer.removeAll();
+    this.optionsContainer.removeAll(true);
 
     // Options Window
     for (let i = 0; i < this.encounterOptions.length; i++) {
@@ -437,6 +460,8 @@ export default class MysteryEncounterUiHandler extends UiHandler {
 
     if (isNullOrUndefined(cursor) || cursor > this.optionsContainer.length - 2) {
       // Ignore hovers on view party button
+      // Hide dex progress if visible
+      this.showHideDexProgress(false);
       return;
     }
 
@@ -487,6 +512,13 @@ export default class MysteryEncounterUiHandler extends UiHandler {
         });
       }
     }
+
+    // Dex progress indicator
+    if (cursorOption.hasDexProgress && !this.showDexProgress) {
+      this.showHideDexProgress(true);
+    } else if (!cursorOption.hasDexProgress) {
+      this.showHideDexProgress(false);
+    }
   }
 
   clear(): void {
@@ -494,6 +526,7 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     this.overrideSettings = null;
     this.optionsContainer.setVisible(false);
     this.optionsContainer.removeAll(true);
+    this.dexProgressContainer.setVisible(false);
     this.descriptionContainer.setVisible(false);
     this.tooltipContainer.setVisible(false);
     // Keeps container background and pokeball
@@ -508,4 +541,30 @@ export default class MysteryEncounterUiHandler extends UiHandler {
     }
     this.cursorObj = null;
   }
+
+  /**
+   *
+   * @param show - if true does show, if false does hide
+   */
+  showHideDexProgress(show: boolean) {
+    if (show && !this.showDexProgress) {
+      this.showDexProgress = true;
+      this.scene.tweens.killTweensOf(this.dexProgressContainer);
+      this.scene.tweens.add({
+        targets: this.dexProgressContainer,
+        y: -63,
+        ease: "Sine.easeInOut",
+        duration: 750
+      });
+    } else if (!show && this.showDexProgress) {
+      this.showDexProgress = false;
+      this.scene.tweens.killTweensOf(this.dexProgressContainer);
+      this.scene.tweens.add({
+        targets: this.dexProgressContainer,
+        y: -43,
+        ease: "Sine.easeInOut",
+        duration: 750,
+      });
+    }
+  }
 }