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path: root/patches/api/0430-Add-experience-points-API.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Lukas Planz <lukas.planz@web.de>
Date: Tue, 5 Sep 2023 20:33:52 +0200
Subject: [PATCH] Add experience points API


diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
index 4297a893799fe39b80029b97f6b5581d543afa8a..b3b6cdf5491397e0e802ac91f5805d560ed5d88a 100644
--- a/src/main/java/org/bukkit/entity/Player.java
+++ b/src/main/java/org/bukkit/entity/Player.java
@@ -1947,6 +1947,45 @@ public interface Player extends HumanEntity, Conversable, OfflinePlayer, PluginM
      * @param exp New total experience points
      */
     public void setTotalExperience(int exp);
+    // Paper start
+    /**
+     * Gets the players total amount of experience points he collected to reach the current level and level progress.
+     *
+     * <p>This method differs from {@link #getTotalExperience()} in that this method always returns an
+     * up-to-date value that reflects the players{@link #getLevel() level} and {@link #getExp() level progress}</p>
+     *
+     * @return Current total experience points
+     * @see #getLevel()
+     * @see #getExp()
+     * @see #setExperienceLevelAndProgress(int)
+     */
+    @org.jetbrains.annotations.Range(from = 0, to = Integer.MAX_VALUE) int calculateTotalExperiencePoints();
+
+    /**
+     * Updates the players level and level progress to that what would be reached when the total amount of experience
+     * had been collected.
+     *
+     * <p>This method differs from {@link #setTotalExperience(int)} in that this method actually updates the
+     * {@link #getLevel() level} and {@link #getExp() level progress} so that a subsequent call of
+     * {@link #calculateTotalExperiencePoints()} yields the same amount of points that have been set</p>
+     *
+     * @param totalExperience New total experience points
+     * @see #setLevel(int)
+     * @see #setExp(float)
+     * @see #calculateTotalExperiencePoints()
+     */
+    void setExperienceLevelAndProgress(@org.jetbrains.annotations.Range(from = 0, to = Integer.MAX_VALUE) int totalExperience);
+
+    /**
+     * Gets the total amount of experience points that are needed to reach the next level from zero progress towards it.
+     *
+     * <p>Can be used with {@link #getExp()} to calculate the current points for the current level and alike</p>
+     *
+     * @return The required experience points
+     * @see #getExp()
+     */
+    int getExperiencePointsNeededForNextLevel();
+    // Paper end
 
     /**
      * Send an experience change.