Implement Magic Guard ability

src/data/ability.ts

@@ -977,9 +977,16 @@ export class BlockCritAbAttr extends AbAttr {
   }
 }
 
+export class BlockNonDirectDamageAbAttr extends AbAttr {
+  apply(pokemon: Pokemon, cancelled: Utils.BooleanHolder, args: any[]): boolean {
+    cancelled.value = true;
+    return true;
+  }
+}
+
 export class BlockOneHitKOAbAttr extends AbAttr {
   apply(pokemon: Pokemon, cancelled: Utils.BooleanHolder, args: any[]): boolean {
-    cancelled.value = false;
+    cancelled.value = true;
     return true;
   }
 }
@@ -2200,7 +2207,8 @@ export function initAbilities() {
     new Ability(Abilities.QUICK_FEET, "Quick Feet (N)", "Boosts the Speed stat if the Pokémon has a status condition.", 4),
     new Ability(Abilities.NORMALIZE, "Normalize (N)", "All the Pokémon's moves become Normal type. The power of those moves is boosted a little.", 4),
     new Ability(Abilities.SNIPER, "Sniper (N)", "Powers up moves if they become critical hits when attacking.", 4),
-    new Ability(Abilities.MAGIC_GUARD, "Magic Guard (N)", "The Pokémon only takes damage from attacks.", 4),
+    new Ability(Abilities.MAGIC_GUARD, "Magic Guard", "The Pokémon only takes damage from attacks.", 4)
+      .attr(BlockNonDirectDamageAbAttr),
     new Ability(Abilities.NO_GUARD, "No Guard (N)", "The Pokémon employs no-guard tactics to ensure incoming and outgoing attacks always land.", 4),
     new Ability(Abilities.STALL, "Stall (N)", "The Pokémon moves after all other Pokémon do.", 4),
     new Ability(Abilities.TECHNICIAN, "Technician", "Powers up the Pokémon's weaker moves.", 4)

src/data/arena-tag.ts

@@ -9,6 +9,7 @@ import { StatusEffect } from "./status-effect";
 import { BattlerIndex } from "../battle";
 import { Moves } from "./enums/moves";
 import { ArenaTagType } from "./enums/arena-tag-type";
+import { BlockNonDirectDamageAbAttr, applyAbAttrs } from "./ability";
 
 export enum ArenaTagSide {
   BOTH,
@@ -172,6 +173,10 @@ class SpikesTag extends ArenaTrapTag {
 
   activateTrap(pokemon: Pokemon): boolean {
     if (pokemon.isGrounded()) {
+      const cancelled = new Utils.BooleanHolder(false);
+      applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+      if (!cancelled.value) {
         const damageHpRatio = 1 / (10 - 2 * this.layers);
         const damage = Math.ceil(pokemon.getMaxHp() * damageHpRatio);
 
@@ -179,6 +184,7 @@ class SpikesTag extends ArenaTrapTag {
         pokemon.damageAndUpdate(damage, HitResult.OTHER);
         return true;
       }
+    }
 
     return false;
   }
@@ -293,6 +299,12 @@ class StealthRockTag extends ArenaTrapTag {
   }
 
   activateTrap(pokemon: Pokemon): boolean {
+    const cancelled = new Utils.BooleanHolder(false);
+    applyAbAttrs(BlockNonDirectDamageAbAttr,  pokemon, cancelled);
+
+    if (cancelled.value)
+      return false;
+    
     const damageHpRatio = this.getDamageHpRatio(pokemon);
 
     if (damageHpRatio) {

src/data/battler-tags.ts

@@ -8,7 +8,7 @@ import * as Utils from "../utils";
 import { Moves } from "./enums/moves";
 import { ChargeAttr, MoveFlags, allMoves } from "./move";
 import { Type } from "./type";
-import { Abilities, FlinchEffectAbAttr, applyAbAttrs } from "./ability";
+import { Abilities, BlockNonDirectDamageAbAttr, FlinchEffectAbAttr, applyAbAttrs } from "./ability";
 import { BattlerTagType } from "./enums/battler-tag-type";
 import { TerrainType } from "./terrain";
 import { WeatherType } from "./weather";
@@ -280,12 +280,17 @@ export class SeedTag extends BattlerTag {
     if (ret) {
       const source = pokemon.getOpponents().find(o => o.getBattlerIndex() === this.sourceIndex);
       if (source) {
+        const cancelled = new Utils.BooleanHolder(false);
+        applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+        if (!cancelled.value) {
           pokemon.scene.unshiftPhase(new CommonAnimPhase(pokemon.scene, source.getBattlerIndex(), pokemon.getBattlerIndex(), CommonAnim.LEECH_SEED));
 
           const damage = pokemon.damageAndUpdate(Math.max(Math.floor(pokemon.getMaxHp() / 8), 1));
           pokemon.scene.unshiftPhase(new PokemonHealPhase(pokemon.scene, source.getBattlerIndex(), damage, getPokemonMessage(pokemon, '\'s health is\nsapped by Leech Seed!'), false, true));
         }
       }
+    }
     
     return ret;
   }
@@ -319,6 +324,10 @@ export class NightmareTag extends BattlerTag {
       pokemon.scene.queueMessage(getPokemonMessage(pokemon, ' is locked\nin a Nightmare!'));
       pokemon.scene.unshiftPhase(new CommonAnimPhase(pokemon.scene, pokemon.getBattlerIndex(), undefined, CommonAnim.CURSE)); // TODO: Update animation type
 
+      const cancelled = new Utils.BooleanHolder(false);
+      applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+      if (!cancelled.value)
         pokemon.damageAndUpdate(Math.ceil(pokemon.getMaxHp() / 4));
     }
     
@@ -506,6 +515,10 @@ export abstract class DamagingTrapTag extends TrappedTag {
       pokemon.scene.queueMessage(getPokemonMessage(pokemon, ` is hurt\nby ${this.getMoveName()}!`));
       pokemon.scene.unshiftPhase(new CommonAnimPhase(pokemon.scene, pokemon.getBattlerIndex(), undefined, this.commonAnim));
 
+      const cancelled = new Utils.BooleanHolder(false);
+      applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+      if (!cancelled.value)
         pokemon.damageAndUpdate(Math.ceil(pokemon.getMaxHp() / 8))
     }
 
@@ -924,11 +937,16 @@ export class SaltCuredTag extends BattlerTag {
     if (ret) {
       pokemon.scene.unshiftPhase(new CommonAnimPhase(pokemon.scene, pokemon.getBattlerIndex(), pokemon.getBattlerIndex(), CommonAnim.SALT_CURE));
 
+      const cancelled = new Utils.BooleanHolder(false);
+      applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+      if (!cancelled.value) {
         const pokemonSteelOrWater = pokemon.isOfType(Type.STEEL) || pokemon.isOfType(Type.WATER);
         pokemon.damageAndUpdate(Math.max(Math.floor(pokemonSteelOrWater ? pokemon.getMaxHp() / 4 : pokemon.getMaxHp() / 8), 1));
 
         pokemon.scene.queueMessage(getPokemonMessage(pokemon, ` is hurt by ${this.getMoveName()}!`));
       }
+    }
     
     return ret;
   }

src/data/move.ts

@@ -12,7 +12,7 @@ import * as Utils from "../utils";
 import { WeatherType } from "./weather";
 import { ArenaTagSide, ArenaTrapTag } from "./arena-tag";
 import { ArenaTagType } from "./enums/arena-tag-type";
-import { Abilities, ProtectAbilityAbAttr, BlockRecoilDamageAttr, BlockOneHitKOAbAttr, IgnoreContactAbAttr, MaxMultiHitAbAttr, applyAbAttrs } from "./ability";
+import { Abilities, ProtectAbilityAbAttr, BlockRecoilDamageAttr, BlockOneHitKOAbAttr, IgnoreContactAbAttr, MaxMultiHitAbAttr, applyAbAttrs, BlockNonDirectDamageAbAttr } from "./ability";
 import { PokemonHeldItemModifier } from "../modifier/modifier";
 import { BattlerIndex } from "../battle";
 import { Stat } from "./pokemon-stat";
@@ -634,6 +634,10 @@ export class RecoilAttr extends MoveEffectAttr {
     if (!recoilDamage)
       return false;
 
+    applyAbAttrs(BlockNonDirectDamageAbAttr, user, cancelled);
+    if (cancelled.value)
+      return false;
+      
     user.damageAndUpdate(recoilDamage, HitResult.OTHER, false, true);
     user.scene.queueMessage(getPokemonMessage(user, ' is hit\nwith recoil!'));
 
@@ -1825,6 +1829,11 @@ export class MissEffectAttr extends MoveAttr {
 }
 
 const halveHpMissEffectFunc = (user: Pokemon, move: Move) => {
+  const cancelled = new Utils.BooleanHolder(false);
+  applyAbAttrs(BlockNonDirectDamageAbAttr, user, cancelled);
+  if (cancelled.value)
+    return false;
+  
   const damage = user.damage(Math.floor(user.getMaxHp() / 2));
   if (damage)
     user.scene.damageNumberHandler.add(user, damage, HitResult.OTHER);

src/phases.ts

@@ -30,7 +30,7 @@ import { Weather, WeatherType, getRandomWeatherType, getTerrainBlockMessage, get
 import { TempBattleStat } from "./data/temp-battle-stat";
 import { ArenaTagSide, ArenaTrapTag, MistTag, TrickRoomTag } from "./data/arena-tag";
 import { ArenaTagType } from "./data/enums/arena-tag-type";
-import { Abilities, CheckTrappedAbAttr, MoveAbilityBypassAbAttr, IgnoreOpponentStatChangesAbAttr, PostAttackAbAttr, PostBattleAbAttr, PostDefendAbAttr, PostSummonAbAttr, PostTurnAbAttr, PostWeatherLapseAbAttr, PreSwitchOutAbAttr, PreWeatherDamageAbAttr, ProtectStatAbAttr, RedirectMoveAbAttr, RunSuccessAbAttr, StatChangeMultiplierAbAttr, SuppressWeatherEffectAbAttr, SyncEncounterNatureAbAttr, applyAbAttrs, applyCheckTrappedAbAttrs, applyPostAttackAbAttrs, applyPostBattleAbAttrs, applyPostDefendAbAttrs, applyPostSummonAbAttrs, applyPostTurnAbAttrs, applyPostWeatherLapseAbAttrs, applyPreStatChangeAbAttrs, applyPreSwitchOutAbAttrs, applyPreWeatherEffectAbAttrs, BattleStatMultiplierAbAttr, applyBattleStatMultiplierAbAttrs, IncrementMovePriorityAbAttr, applyPostVictoryAbAttrs, PostVictoryAbAttr, applyPostBattleInitAbAttrs, PostBattleInitAbAttr } from "./data/ability";
+import { Abilities, CheckTrappedAbAttr, MoveAbilityBypassAbAttr, IgnoreOpponentStatChangesAbAttr, PostAttackAbAttr, PostBattleAbAttr, PostDefendAbAttr, PostSummonAbAttr, PostTurnAbAttr, PostWeatherLapseAbAttr, PreSwitchOutAbAttr, PreWeatherDamageAbAttr, ProtectStatAbAttr, RedirectMoveAbAttr, RunSuccessAbAttr, StatChangeMultiplierAbAttr, SuppressWeatherEffectAbAttr, SyncEncounterNatureAbAttr, applyAbAttrs, applyCheckTrappedAbAttrs, applyPostAttackAbAttrs, applyPostBattleAbAttrs, applyPostDefendAbAttrs, applyPostSummonAbAttrs, applyPostTurnAbAttrs, applyPostWeatherLapseAbAttrs, applyPreStatChangeAbAttrs, applyPreSwitchOutAbAttrs, applyPreWeatherEffectAbAttrs, BattleStatMultiplierAbAttr, applyBattleStatMultiplierAbAttrs, IncrementMovePriorityAbAttr, applyPostVictoryAbAttrs, PostVictoryAbAttr, applyPostBattleInitAbAttrs, PostBattleInitAbAttr, BlockNonDirectDamageAbAttr as BlockNonDirectDamageAbAttr } from "./data/ability";
 import { Unlockables, getUnlockableName } from "./system/unlockables";
 import { getBiomeKey } from "./field/arena";
 import { BattleType, BattlerIndex, TurnCommand } from "./battle";
@@ -2551,6 +2551,7 @@ export class WeatherEffectPhase extends CommonAnimPhase {
           const cancelled = new Utils.BooleanHolder(false);
 
           applyPreWeatherEffectAbAttrs(PreWeatherDamageAbAttr, pokemon, this.weather, cancelled);
+          applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
 
           if (cancelled.value)
             return;
@@ -2620,6 +2621,12 @@ export class PostTurnStatusEffectPhase extends PokemonPhase {
     const pokemon = this.getPokemon();
     if (pokemon?.isActive(true) && pokemon.status && pokemon.status.isPostTurn()) {
       pokemon.status.incrementTurn();
+      const cancelled = new Utils.BooleanHolder(false);
+      applyAbAttrs(BlockNonDirectDamageAbAttr, pokemon, cancelled);
+
+      console.log(cancelled.value)
+
+      if (!cancelled.value) {
         this.scene.queueMessage(getPokemonMessage(pokemon, getStatusEffectActivationText(pokemon.status.effect)));
         let damage: integer = 0;
         switch (pokemon.status.effect) {
@@ -2640,6 +2647,8 @@ export class PostTurnStatusEffectPhase extends PokemonPhase {
         new CommonBattleAnim(CommonAnim.POISON + (pokemon.status.effect - 1), pokemon).play(this.scene, () => this.end());
       } else
         this.end();
+    } else
+      this.end();
   }
 }