Added comments, added (what i think is TSDoc) to functions and classes. Removed empty lines i introduced

src/data/move.ts

@@ -747,16 +747,26 @@ export class SacrificialAttr extends MoveEffectAttr {
     super(true, MoveEffectTrigger.PRE_APPLY);
   }
 
+    /**
+     * Applies the sacrificial effect to the user
+     * @param user Pokemon that used the move
+     * @param target The target of the move
+     * @param move Move with this attribute
+     * @param args N/A
+     */
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
-
-
-
     user.damageAndUpdate(user.hp, HitResult.OTHER, false, true, true);
 	user.turnData.damageTaken += user.hp;
 
     return true;
   }
 
+  /**
+   *
+   * @param user Pokemon that used the move
+   * @param target The target of the move
+   * @param move Move with this attribute
+   */
   getUserBenefitScore(user: Pokemon, target: Pokemon, move: Move): integer {
     if (user.isBoss())
       return -20;
@@ -766,15 +776,23 @@ export class SacrificialAttr extends MoveEffectAttr {
 
 
 /**
- * Attribute used for moves which self KO the user but only if the move hits a target
+ * * Attribute used for moves which self KO the user but only if the move hits a target
  */
 export class SacrificialAttrOnHit extends MoveEffectAttr {
   constructor() {
     super(true, MoveEffectTrigger.PRE_APPLY);
   }
 
+  /**
+   * Applies the sacrificial effect to the user
+   * @param user Pokemon that used the move
+   * @param target The target of the move
+   * @param move Move with this attribute
+   * @param args N/A
+   */
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
 
+    // If the move hits a target, the user will self KO
     if (!super.apply(user, target, move, args))
       return false;
 
@@ -784,6 +802,12 @@ export class SacrificialAttrOnHit extends MoveEffectAttr {
     return true;
   }
 
+  /**
+   *
+   * @param user Pokemon that used the move
+   * @param target The target of the move
+   * @param move Move with this attribute
+   */
   getUserBenefitScore(user: Pokemon, target: Pokemon, move: Move): integer {
     if (user.isBoss())
       return -20;

src/phases.ts

@@ -2295,13 +2295,12 @@ export class MovePhase extends BattlePhase {
         return this.end();
       }
 
+      // Check if the move has no valid targets (because they are flying, etc.) - if the used move is sacrificial it does not need a target so we add the user as a target so the move does not fail
       if (targets.length === 0 && this.move.getMove().getAttrs(SacrificialAttr).length) {
         // Add the user as a target if the move is sacrificial
         targets.push(this.pokemon);
       }
 
-
-
       if (!moveQueue.length || !moveQueue.shift().ignorePP) // using .shift here clears out two turn moves once they've been used
         this.move.usePp(ppUsed);
 
@@ -2465,13 +2464,14 @@ export class MoveEffectPhase extends PokemonPhase {
 
       // Move animation only needs one target
       new MoveAnim(this.move.getMove().id as Moves, user, this.getTarget()?.getBattlerIndex()).play(this.scene, () => {
-        // Check if the user is in the targets list for sacrificial moves
+        // Check if the user is in the targets list for sacrificial moves, if not add them
         if (this.move.getMove().getAttrs(SacrificialAttr).length && !targets.includes(user)) {
           targets.push(user);
           targetHitChecks[user.getBattlerIndex()] = true;
         }
         for (let target of targets) {
           if (!targetHitChecks[target.getBattlerIndex()]) {
+            // If we have a sacrifical move, and the target isnt the user - it should not "miss". So we skip the miss check
             if (this.move.getMove().getAttrs(SacrificialAttr).length && target !== user) {
               continue;
             }