[Move] Some more implementation for Tera Blast (#3469)

* terablast updated

* terablast update

* terablast

* fix trailing spaces

* fixed misspelling in a comment

* split tera blast dmg calc and type calc into different classes

* terablastpowerattr update

removed dupe code and added user terastallized check to conditional

* Update src/data/move.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Update src/data/move.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* removed spaces and added missing semicolon

* added tsdocs for tera blast

* deleted extra spaces

* tsdoc update

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* tsdoc update

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* tsdoc update

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Add files via upload

* Update src/test/moves/tera_blast.test.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Update src/test/moves/tera_blast.test.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Update src/test/moves/tera_blast.test.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Update src/test/moves/tera_blast.test.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* Update src/test/moves/tera_blast.test.ts

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>

* remove trailing spaces

* The style police are here

* Fixed conflict resolution issues

---------

Co-authored-by: NightKev <34855794+DayKev@users.noreply.github.com>
Co-authored-by: flx-sta <50131232+flx-sta@users.noreply.github.com>
Co-authored-by: innerthunder <brandonerickson98@gmail.com>

src/data/move.ts

@@ -3784,6 +3784,30 @@ export class TeraBlastCategoryAttr extends VariableMoveCategoryAttr {
   }
 }
 
+/**
+ * Increases the power of Tera Blast if the user is Terastallized into Stellar type
+ * @extends VariablePowerAttr
+ */
+export class TeraBlastPowerAttr extends VariablePowerAttr {
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+  /**
+   * @param user {@linkcode Pokemon} Pokemon using the move
+   * @param target {@linkcode Pokemon} N/A
+   * @param move {@linkcode Move} {@linkcode Move.TERA_BLAST}
+   * @param {any[]} args N/A
+   * @returns true or false
+   */
+    const power = args[0] as Utils.NumberHolder;
+    if (user.isTerastallized() && move.type === Type.STELLAR) {
+      //200 instead of 100 to reflect lack of stellar being 2x dmg on any type
+      power.value = 200;
+      return true;
+    }
+
+    return false;
+  }
+}
+
 /**
  * Change the move category to status when used on the ally
  * @extends VariableMoveCategoryAttr
@@ -4037,6 +4061,28 @@ export class HiddenPowerTypeAttr extends VariableMoveTypeAttr {
   }
 }
 
+/**
+ * Changes the type of Tera Blast to match the user's tera type
+ * @extends VariableMoveTypeAttr
+ */
+export class TeraBlastTypeAttr extends VariableMoveTypeAttr {
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+  /**
+   * @param user {@linkcode Pokemon} the user's type is checked
+   * @param target {@linkcode Pokemon} N/A
+   * @param move {@linkcode Move} {@linkcode Move.TeraBlastTypeAttr}
+   * @param {any[]} args N/A
+   * @returns true or false
+   */
+    if (user.isTerastallized()) {
+      move.type = user.getTeraType(); //changes move type to tera type
+      return true;
+    }
+
+    return false;
+  }
+}
+
 export class MatchUserTypeAttr extends VariableMoveTypeAttr {
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
     const userTypes = user.getTypes(true);
@@ -8791,7 +8837,10 @@ export function initMoves() {
     End Unused */
     new AttackMove(Moves.TERA_BLAST, Type.NORMAL, MoveCategory.SPECIAL, 80, 100, 10, -1, 0, 9)
       .attr(TeraBlastCategoryAttr)
-      .unimplemented(),
+      .attr(TeraBlastTypeAttr)
+      .attr(TeraBlastPowerAttr)
+      .attr(StatChangeAttr, [ BattleStat.ATK, BattleStat.SPATK ], -1, true, (user, target, move) => user.isTerastallized() && user.isOfType(Type.STELLAR))
+      .partial(),
     new SelfStatusMove(Moves.SILK_TRAP, Type.BUG, -1, 10, -1, 4, 9)
       .attr(ProtectAttr, BattlerTagType.SILK_TRAP),
     new AttackMove(Moves.AXE_KICK, Type.FIGHTING, MoveCategory.PHYSICAL, 120, 90, 10, 30, 0, 9)

src/test/moves/tera_blast.test.ts

@@ -0,0 +1,106 @@
+import { allMoves } from "#app/data/move";
+import GameManager from "#test/utils/gameManager";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { Abilities } from "#app/enums/abilities";
+import { SPLASH_ONLY } from "../utils/testUtils";
+import { Type } from "#app/data/type";
+import { getMovePosition } from "../utils/gameManagerUtils";
+import { BattleStat } from "#app/data/battle-stat";
+import { Stat } from "#app/enums/stat";
+import { BattlerIndex } from "#app/battle";
+import { HitResult } from "#app/field/pokemon";
+
+describe("Moves - Tera Blast", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+  const moveToCheck = allMoves[Moves.TERA_BLAST];
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+
+    game.override
+      .battleType("single")
+      .disableCrits()
+      .starterSpecies(Species.FEEBAS)
+      .moveset([Moves.TERA_BLAST])
+      .ability(Abilities.BALL_FETCH)
+      .startingHeldItems([{name: "TERA_SHARD", type: Type.FIRE}])
+      .enemySpecies(Species.MAGIKARP)
+      .enemyMoveset(SPLASH_ONLY)
+      .enemyAbility(Abilities.BALL_FETCH)
+      .enemyLevel(20);
+
+    vi.spyOn(moveToCheck, "calculateBattlePower");
+  });
+
+  it("changes type to match user's tera type", async() => {
+    game.override
+      .enemySpecies(Species.FURRET)
+      .startingHeldItems([{name: "TERA_SHARD", type: Type.FIGHTING}]);
+    await game.startBattle();
+    const enemyPokemon = game.scene.getEnemyPokemon()!;
+    vi.spyOn(enemyPokemon, "apply");
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TERA_BLAST));
+    await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);
+    await game.phaseInterceptor.to("MoveEffectPhase");
+
+    expect(enemyPokemon.apply).toHaveReturnedWith(HitResult.SUPER_EFFECTIVE);
+  }, 20000);
+
+  it("increases power if user is Stellar tera type", async() => {
+    game.override.startingHeldItems([{name: "TERA_SHARD", type: Type.STELLAR}]);
+    const stellarTypeMultiplier = 2;
+    const stellarTypeDmgBonus = 20;
+    const basePower = moveToCheck.power;
+
+    await game.startBattle();
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TERA_BLAST));
+    await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);
+    await game.phaseInterceptor.to("MoveEffectPhase");
+
+    expect(moveToCheck.calculateBattlePower).toHaveReturnedWith((basePower + stellarTypeDmgBonus) * stellarTypeMultiplier);
+  }, 20000);
+
+  // Currently abilities are bugged and can't see when a move's category is changed
+  it.skip("uses the higher stat of the user's Atk and SpAtk for damage calculation", async() => {
+    game.override.enemyAbility(Abilities.TOXIC_DEBRIS);
+    await game.startBattle();
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+    playerPokemon.stats[Stat.ATK] = 100;
+    playerPokemon.stats[Stat.SPATK] = 1;
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TERA_BLAST));
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(game.scene.getEnemyPokemon()!.battleData.abilityRevealed).toBe(true);
+  }, 20000);
+
+  it("causes stat drops if user is Stellar tera type", async() => {
+    game.override.startingHeldItems([{name: "TERA_SHARD", type: Type.STELLAR}]);
+    await game.startBattle();
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+
+    game.doAttack(getMovePosition(game.scene, 0, Moves.TERA_BLAST));
+    await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);
+    await game.phaseInterceptor.to("MoveEndPhase");
+
+    expect(playerPokemon.summonData.battleStats[BattleStat.SPATK]).toBe(-1);
+    expect(playerPokemon.summonData.battleStats[BattleStat.ATK]).toBe(-1);
+  }, 20000);
+});