initial commit

Author: bierdosenhalter

.gitignore

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+# Java
+*.class
+*.jar
+hs_err_pid*
+
+# Maven
+target/
+
+# IntelliJ
+.idea
+*.iml

README.md

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+# SimpleCommandCooldown
+
+Spigot plugin to block the excessive use of player chat commands.
+
+## Source
+
+- original plugin from [darki](https://github.com/DarkiBoi)

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">    <modelVersion>4.0.0</modelVersion>    <groupId>me.darki</groupId>    <artifactId>SimpleCommandCooldown</artifactId>    <version>1.0</version>    <packaging>jar</packaging>    <name>SimpleCommandCooldown</name>    <properties>        <java.version>1.8</java.version>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    </properties>    <build>        <defaultGoal>clean package</defaultGoal>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>3.7.0</version>                <configuration>                    <source>${java.version}</source>                    <target>${java.version}</target>                </configuration>            </plugin>        </plugins>        <resources>            <resource>                <directory>src/main/resources</directory>                <filtering>true</filtering>            </resource>        </resources>    </build>    <repositories>        <repository>            <id>spigotmc-repo</id>            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>        </repository>    </repositories>    <dependencies>        <dependency>            <groupId>org.spigotmc</groupId>            <artifactId>spigot-api</artifactId>            <version>1.15.2-R0.1-SNAPSHOT</version>            <scope>provided</scope>        </dependency>    </dependencies></project>

src/main/java/me/darki/simplecommandcooldown/CommandListener.java

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+package me.darki.simplecommandcooldown;
+
+import javafx.util.Pair;
+import org.bukkit.ChatColor;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
+
+public class CommandListener implements Listener {
+    final private ConcurrentHashMap<Pair<Player, String>, Long> cooldownMap;
+    final private ReentrantLock mutex = new ReentrantLock();
+
+    public CommandListener() {
+        cooldownMap = new ConcurrentHashMap<>();
+    }
+
+    @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
+    public void onCommand(PlayerCommandPreprocessEvent event) {
+        Player player = event.getPlayer();
+        String commandName = event.getMessage().split(" ")[0];
+
+        Pair<Player, String> pair = new Pair<>(player, commandName);
+
+        try {
+            this.mutex.lock();
+
+            if (this.cooldownMap.containsKey(pair)) {
+                if (System.currentTimeMillis() - this.cooldownMap.get(pair) > SimpleCommandCooldown.cooldown) {
+                    this.cooldownMap.remove(pair);
+                } else {
+                    player.sendMessage(ChatColor.RED + "Please wait a bit before using this command again!");
+                    event.setCancelled(true);
+                }
+            } else {
+                this.cooldownMap.put(pair, System.currentTimeMillis());
+            }
+        } finally {
+            this.mutex.unlock();
+        }
+    }
+
+    @EventHandler(ignoreCancelled = true)
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        Player player = event.getPlayer();
+
+        for (Map.Entry<Pair<Player, String>, Long> entry : this.cooldownMap.entrySet()) {
+            if (entry.getKey().getKey() == player)
+                this.cooldownMap.remove(entry.getKey());
+        }
+    }
+}

src/main/java/me/darki/simplecommandcooldown/SimpleCommandCooldown.java

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+package me.darki.simplecommandcooldown;
+
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class SimpleCommandCooldown extends JavaPlugin {
+    public static long cooldown = 0L;
+
+    public void onEnable() {
+        getConfig().addDefault("cooldown", 3000);
+        getConfig().options().copyDefaults(true);
+        saveConfig();
+
+        Bukkit.getServer().getPluginManager().registerEvents(new CommandListener(), this);
+        cooldown = getConfig().getLong("cooldown");
+    }
+}

src/main/resources/plugin.yml

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+name: SimpleCommandCooldown
+version: 1.0
+main: me.darki.simplecommandcooldown.SimpleCommandCooldown
+api-version: 1.13
+authors: [Darki, bierdosenhalter]