Facade should ignore burn damage reduction (#530)

* Facade should ignore burn damage reduction

* update order of burn conditions

* remove unnecessary space

* undo facade check in apply

* Rework facade bypassing burn as move attribute

* Only check ability attribute if move attribute was false

* Add missing semicolon

* Add tsdoc comment

* Add comment to burn damage reduction class

* Added changes from Discord thread

---------

Co-authored-by: Benjamin Odom <bennybroseph@gmail.com>

src/data/move.ts

@@ -1353,6 +1353,25 @@ export class BypassSleepAttr extends MoveAttr {
   }
 }
 
+/**
+ * Attribute used for moves that bypass the burn damage reduction of physical moves, currently only facade
+ * Called during damage calculation
+ * @param user N/A
+ * @param target N/A
+ * @param move Move with this attribute
+ * @param args Utils.BooleanHolder for burnDamageReductionCancelled
+ * @returns true if the function succeeds
+ */
+export class BypassBurnDamageReductionAttr extends MoveAttr {
+
+  /** Prevents the move's damage from being reduced by burn */
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    (args[0] as Utils.BooleanHolder).value = true;
+
+    return true; 
+  }
+}
+
 export class WeatherChangeAttr extends MoveEffectAttr {
   private weatherType: WeatherType;
   
@@ -4904,7 +4923,8 @@ export function initMoves() {
       .attr(StatChangeAttr, [ BattleStat.ATK, BattleStat.SPATK ], -2),
     new AttackMove(Moves.FACADE, Type.NORMAL, MoveCategory.PHYSICAL, 70, 100, 20, -1, 0, 3)
       .attr(MovePowerMultiplierAttr, (user, target, move) => user.status
-        && (user.status.effect === StatusEffect.BURN || user.status.effect === StatusEffect.POISON || user.status.effect === StatusEffect.TOXIC || user.status.effect === StatusEffect.PARALYSIS) ? 2 : 1),
+        && (user.status.effect === StatusEffect.BURN || user.status.effect === StatusEffect.POISON || user.status.effect === StatusEffect.TOXIC || user.status.effect === StatusEffect.PARALYSIS) ? 2 : 1)
+        .attr(BypassBurnDamageReductionAttr),
     new AttackMove(Moves.FOCUS_PUNCH, Type.FIGHTING, MoveCategory.PHYSICAL, 150, 100, 20, -1, -3, 3)
       .punchingMove()
       .ignoresVirtual()

src/field/pokemon.ts

@@ -4,7 +4,7 @@ import { Variant, VariantSet, variantColorCache } from '#app/data/variant';
 import { variantData } from '#app/data/variant';
 import BattleInfo, { PlayerBattleInfo, EnemyBattleInfo } from '../ui/battle-info';
 import { Moves } from "../data/enums/moves";
-import Move, { HighCritAttr, HitsTagAttr, applyMoveAttrs, FixedDamageAttr, VariableAtkAttr, VariablePowerAttr, allMoves, MoveCategory, TypelessAttr, CritOnlyAttr, getMoveTargets, OneHitKOAttr, MultiHitAttr, StatusMoveTypeImmunityAttr, MoveTarget, VariableDefAttr, AttackMove, ModifiedDamageAttr, VariableMoveTypeMultiplierAttr, IgnoreOpponentStatChangesAttr, SacrificialAttr, VariableMoveTypeAttr, VariableMoveCategoryAttr, CounterDamageAttr, StatChangeAttr, RechargeAttr, ChargeAttr, IgnoreWeatherTypeDebuffAttr } from "../data/move";
+import Move, { HighCritAttr, HitsTagAttr, applyMoveAttrs, FixedDamageAttr, VariableAtkAttr, VariablePowerAttr, allMoves, MoveCategory, TypelessAttr, CritOnlyAttr, getMoveTargets, OneHitKOAttr, MultiHitAttr, StatusMoveTypeImmunityAttr, MoveTarget, VariableDefAttr, AttackMove, ModifiedDamageAttr, VariableMoveTypeMultiplierAttr, IgnoreOpponentStatChangesAttr, SacrificialAttr, VariableMoveTypeAttr, VariableMoveCategoryAttr, CounterDamageAttr, StatChangeAttr, RechargeAttr, ChargeAttr, IgnoreWeatherTypeDebuffAttr, BypassBurnDamageReductionAttr } from "../data/move";
 import { default as PokemonSpecies, PokemonSpeciesForm, SpeciesFormKey, getFusedSpeciesName, getPokemonSpecies, getPokemonSpeciesForm, getStarterValueFriendshipCap, speciesStarters, starterPassiveAbilities } from '../data/pokemon-species';
 import * as Utils from '../utils';
 import { Type, TypeDamageMultiplier, getTypeDamageMultiplier, getTypeRgb } from '../data/type';
@@ -1540,10 +1540,12 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
           if (!isTypeImmune) {
             damage.value = Math.ceil(((((2 * source.level / 5 + 2) * power.value * sourceAtk.value / targetDef.value) / 50) + 2) * stabMultiplier.value * typeMultiplier.value * arenaAttackTypeMultiplier.value * screenMultiplier.value * ((this.scene.randBattleSeedInt(15) + 85) / 100) * criticalMultiplier.value);
             if (isPhysical && source.status && source.status.effect === StatusEffect.BURN) {
-              const burnDamageReductionCancelled = new Utils.BooleanHolder(false);
+              if(!move.getAttrs(BypassBurnDamageReductionAttr).length) {
-              applyAbAttrs(BypassBurnDamageReductionAbAttr, source, burnDamageReductionCancelled);
+                const burnDamageReductionCancelled = new Utils.BooleanHolder(false);
-              if (!burnDamageReductionCancelled.value)
+                applyAbAttrs(BypassBurnDamageReductionAbAttr, source, burnDamageReductionCancelled);
-                damage.value = Math.floor(damage.value / 2);
+                if (!burnDamageReductionCancelled.value)
+                  damage.value = Math.floor(damage.value / 2);
+              }
             }
 
             applyPreAttackAbAttrs(DamageBoostAbAttr, source, this, battlerMove, damage);