Fixes

Author: TheRedMagic

src/main/java/com/redmagic/undefinedapi/extension/PlayerExtension.kt

@@ -45,6 +45,9 @@ fun Player.sendActionBar(string: String, time: Int, timeUnit: TimeUnit = TimeUni
  */
 fun Player.feed() { foodLevel = 20 }
 
+/**
+ * Restores the player's health to the maximum health value.
+ */
 fun Player.heal() { health = maxHealth }
 
 /**
@@ -57,8 +60,6 @@ fun Player.resetWalkSpeed() { walkSpeed = 0.2F }
  */
 fun Player.resetFlySpeed() { flySpeed = 0.1F }
 
-
-
 /**
  * Hides the player from all online players.
  *

src/main/java/com/redmagic/undefinedapi/extension/RandomUtil.kt

@@ -12,17 +12,14 @@ import kotlin.random.Random
  */
 fun Random.weightedRandom(map: Map<Any, Double>): Any{
     val totalWeight = getTotalWeight(map)
-    var idx = 0;
-    var r = this.nextDouble() * totalWeight
-
-    while (idx < map.keys.size - 1){
-        val  s = map.keys.elementAt(idx)
-        r -= map[s] ?: 0.0
-        if (r <= 0) break
-        ++idx
+    var randomWeight = this.nextDouble(totalWeight)
+    for ((item, weight) in map) {
+        randomWeight -= weight
+        if (randomWeight <= 0) {
+            return item
+        }
     }
-
-    return map.keys.elementAt(idx)
+    throw IllegalArgumentException("The map is empty.")
 }
 
 /**
@@ -37,4 +34,3 @@ private fun getTotalWeight(map: Map<Any, Double>): Double {
 
     return total
 }
-