Rename some bossbar-related fields and methods

api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java

@@ -66,19 +66,19 @@ public interface BossBar {
   void setTitle(@NonNull Component title);
 
   /**
-   * Gets the boss bar's progress. In Minecraft, this is called 'health' of the boss bar.
+   * Gets the boss bar's percent.
    *
-   * @return progress
+   * @return percent
    */
-  float getProgress();
+  float getPercent();
 
   /**
-   * Sets a new progress of the boss bar. In Minecraft, this is called 'health' of the boss bar.
+   * Sets a new percent of the boss bar.
    *
-   * @param progress a float between 0 and 1, representing boss bar's progress
-   * @throws IllegalArgumentException if the new progress is not between 0 and 1
+   * @param percent a float between 0 and 1, representing boss bar's percent
+   * @throws IllegalArgumentException if the new percent is not between 0 and 1
    */
-  void setProgress(float progress);
+  void setPercent(float percent);
 
   /**
    * Returns a copy of the {@link Collection} of all {@link Player} added to the boss bar.

api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarFlag.java

@@ -4,7 +4,7 @@ package com.velocitypowered.api.util.bossbar;
  * Represents any {@link BossBar}'s flags.
  */
 public enum BossBarFlag {
-  DARKEN_SKY,
-  DRAGON_BAR,
-  CREATE_FOG
+  DARKEN_SCREEN,
+  PLAY_BOSS_MUSIC,
+  CREATE_WORLD_FOG
 }

api/src/main/java/com/velocitypowered/api/util/bossbar/BossBarOverlay.java

@@ -4,9 +4,9 @@ package com.velocitypowered.api.util.bossbar;
  * Represents a overlay of a {@link BossBar}.
  */
 public enum BossBarOverlay {
-  SOLID,
-  SEGMENTED_6,
-  SEGMENTED_10,
-  SEGMENTED_12,
-  SEGMENTED_20
+  PROGRESS,
+  NOTCHED_6,
+  NOTCHED_10,
+  NOTCHED_12,
+  NOTCHED_20
 }