Add playerexpcooldownchange event

src/main/java/ch/njol/skript/events/SimpleEvents.java

@@ -71,6 +71,7 @@
 import org.bukkit.event.player.PlayerBucketFillEvent;
 import org.bukkit.event.player.PlayerChangedWorldEvent;
 import org.bukkit.event.player.PlayerEggThrowEvent;
+import org.bukkit.event.player.PlayerExpCooldownChangeEvent;
 import org.bukkit.event.player.PlayerFishEvent;
 import org.bukkit.event.player.PlayerItemBreakEvent;
 import org.bukkit.event.player.PlayerItemDamageEvent;
@@ -731,6 +732,14 @@ public class SimpleEvents {
 				)
 				.since("INSERT VERSION");
 
+		Skript.registerEvent("Player Exp Cooldown Change", SimpleEvent.class, PlayerExpCooldownChangeEvent.class, "[player] (exp cooldown change)")
+			.description("Called when a player's exp cooldown changes")
+			.examples(
+				"On player exp cooldown change:",
+				"\tsend \"Your exp cooldown has changed!\" to player"
+			)
+			.since("INSERT VERSION");
+
 	}
 
 }

src/main/java/ch/njol/skript/expressions/ExprExpCooldown.java

@@ -0,0 +1,105 @@
+/**
+ *   This file is part of Skript.
+ *
+ *  Skript is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Skript is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Skript.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright Peter Güttinger, SkriptLang team and contributors
+ */
+package ch.njol.skript.expressions;
+
+
+import ch.njol.skript.Skript;
+import ch.njol.skript.classes.Changer.ChangeMode;
+import ch.njol.skript.doc.Description;
+import ch.njol.skript.doc.Examples;
+import ch.njol.skript.doc.Name;
+import ch.njol.skript.doc.Since;
+import ch.njol.skript.expressions.base.SimplePropertyExpression;
+import ch.njol.skript.util.Timespan;
+import ch.njol.util.coll.CollectionUtils;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Event;
+
+import javax.annotation.Nullable;
+
+@Name("Exp Cooldown")
+@Description("The exp cooldown of a player")
+@Examples({
+	"player's exp cooldown is less than 3 ticks:",
+	"\tsend \"increasing your exp cooldown!\" to player",
+	"\t\tset player's exp cooldown to 40 ticks"
+})
+@Since("2.7")
+public class ExprExpCooldown  extends SimplePropertyExpression<Player, Timespan> {
+
+	static {
+		if (Skript.methodExists(Player.class, "getNewCooldown"))
+			register(ExprExpCooldown.class, Timespan.class, "cooldown change", "players");
+	}
+
+	@Override
+	@Nullable
+	public Timespan convert(Player player) { return Timespan.fromTicks_i(player.getExpCooldown()); }
+
+	@Override
+	@Nullable
+	public Class<?>[] acceptChange(ChangeMode mode) {
+		return (mode != ChangeMode.REMOVE_ALL) ? CollectionUtils.array(Timespan.class) : null;
+	}
+
+	@Override
+	public void change(Event e, @Nullable Object[] delta, ChangeMode mode) {
+		int time = delta == null ? 0 : (int) ((Timespan) delta[0]).getTicks_i();
+		int newTime;
+		switch (mode) {
+			case ADD:
+				for (Player player : getExpr().getArray(e)) {
+					newTime = player.getExpCooldown() + time;
+					setExpCooldown(player, newTime);
+				}
+				break;
+			case REMOVE:
+				for (Player player : getExpr().getArray(e)) {
+					newTime = player.getExpCooldown() - time;
+					setExpCooldown(player, newTime);
+				}
+				break;
+			case SET:
+				for (Player player : getExpr().getArray(e)) {
+					setExpCooldown(player, time);
+				}
+				break;
+			case DELETE:
+			case RESET:
+				for (Player player : getExpr().getArray(e)) {
+					setExpCooldown(player, 0);
+				}
+				break;
+			default:
+				assert false;
+		}
+	}
+
+	@Override
+	public Class<? extends Timespan> getReturnType() { return Timespan.class; }
+
+	@Override
+	protected String getPropertyName() { return "exp cooldown"; }
+
+	private void setExpCooldown(Player player, int ticks) {
+		if (ticks < 0)
+			ticks = 0;
+		player.setExpCooldown(ticks);
+	}
+}