Initial commit

src/main/java/eu/mhsl/minecraft/BabyCreeper.java

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+package eu.mhsl.minecraft;
+
+import org.bukkit.Bukkit;
+import org.bukkit.NamespacedKey;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+public final class BabyCreeper extends JavaPlugin {
+    @NotNull
+    public static final NamespacedKey babyCreeper = NamespacedKey.fromString("babycreeper");
+
+    public static ConfigurationSection config;
+
+    @Override
+    public void onEnable() {
+        saveResource("config.yml", false);
+        reloadConfig();
+        config = getConfig().getConfigurationSection("babyCreepers");
+        if(config == null) throw new IllegalStateException("Could not load config. Root element 'babyCreepers' is missing!");
+
+        if(!config.getBoolean("enabled", true)) return;
+        Bukkit.getPluginManager().registerEvents(new BabyCreeperListener(), this);
+    }
+
+    @Override
+    public void onDisable() {
+        Bukkit.getScheduler().cancelTasks(this);
+    }
+}

src/main/java/eu/mhsl/minecraft/BabyCreeperListener.java

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+package eu.mhsl.minecraft;
+
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
+import org.bukkit.entity.Creeper;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.WindCharge;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.CreatureSpawnEvent;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.event.entity.EntityExplodeEvent;
+import org.bukkit.persistence.PersistentDataType;
+import org.bukkit.util.Vector;
+
+import java.util.Objects;
+import java.util.concurrent.ThreadLocalRandom;
+
+public class BabyCreeperListener implements Listener {
+    @EventHandler
+    public void onCreeperSpawn(CreatureSpawnEvent event) {
+        if(!event.getEntity().getType().equals(EntityType.CREEPER)) return;
+//        if(ThreadLocalRandom.current().nextDouble() > BabyCreeper.config.getDouble("spawnProbability", 0.1)) return;
+
+        Creeper creeper = (Creeper) event.getEntity();
+        creeper.getPersistentDataContainer().set(BabyCreeper.babyCreeper, PersistentDataType.BOOLEAN, true);
+        AttributeInstance scaleAttribute = Objects.requireNonNull(creeper.getAttribute(Attribute.SCALE), "Could not find scale attribute for Entity");
+        AttributeInstance speedAttribute = Objects.requireNonNull(creeper.getAttribute(Attribute.MOVEMENT_SPEED), "Could not find speed attribute for Entity");
+        scaleAttribute.setBaseValue(BabyCreeper.config.getDouble("size", 0.5));
+        speedAttribute.setBaseValue(BabyCreeper.config.getDouble("speed", 0.5));
+    }
+
+    @EventHandler
+    public void onCreeperExplode(EntityExplodeEvent event) {
+        if(!event.getEntity().getType().equals(EntityType.CREEPER)) return;
+        Creeper creeper = (Creeper) event.getEntity();
+        if(!creeper.getPersistentDataContainer().has(BabyCreeper.babyCreeper, PersistentDataType.BOOLEAN)) return;
+
+        event.setCancelled(true);
+        creeper.getLocation().createExplosion(creeper, 2, false, false);
+
+//        //        WindCharge windCharge = creeper.getLocation().getWorld().spawn(creeper.getLocation(), WindCharge.class);
+//        windCharge.setVelocity(new Vector(0, -100, 0));
+//        windCharge.setInvulnerable(true);
+//        windCharge.setGravity(false);
+//        windCharge.setInvisible(true);
+//        windCharge.setVisibleByDefault(false);
+    }
+
+    @EventHandler
+    public void onCreeperDamage(EntityDamageByEntityEvent event) {
+        if(!event.getDamager().getType().equals(EntityType.CREEPER)) return;
+        Creeper creeper = (Creeper) event.getDamager();
+        if(!creeper.getPersistentDataContainer().has(BabyCreeper.babyCreeper, PersistentDataType.BOOLEAN)) return;
+        event.setCancelled(true);
+    }
+}

src/main/resources/config.yml

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+babyCreepers:
+  enabled: true
+  spawnProbability: 0.1
+  size: 0.5
+  speed: 0.3

src/main/resources/plugin.yml

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+name: BabyCreeper
+version: '1.0-SNAPSHOT'
+main: eu.mhsl.minecraft.BabyCreeper
+api-version: '1.21'
+authors: [ MineTec ]
+description: Hides Serverlist-Ping information
+website: mhsl.eu