Initial commit

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

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+# User-specific stuff
+.idea/
+
+*.iml
+*.ipr
+*.iws
+
+# IntelliJ
+out/
+
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+target/
+
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+.flattened-pom.xml
+
+# Common working directory
+run/

README.md

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+# NoMoreVilliger
+ 村民计划生育（误）

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>site.deercloud</groupId>
+    <artifactId>NoMoreVillager</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>NoMoreVillager</name>
+
+    <description>限制村民行为，防止卡服。</description>
+    <properties>
+        <java.version>1.8</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <url>https://blog.deercloud.site</url>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <createDependencyReducedPom>false</createDependencyReducedPom>
+                        </configuration>
+                    </execution>
+                </executions>
+            </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>
+        <repository>
+            <id>sonatype</id>
+            <url>https://oss.sonatype.org/content/groups/public/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.14-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/site/deercloud/nomorevillager/ConfigManager.java

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+package site.deercloud.nomorevillager;
+
+import org.bukkit.configuration.file.FileConfiguration;
+
+public class ConfigManager {
+
+    public ConfigManager() {
+        reload();
+    }
+
+    public void reload() {
+        NoMoreVillager.instance.saveDefaultConfig();
+        NoMoreVillager.instance.reloadConfig();
+        fileConfiguration = NoMoreVillager.instance.getConfig();
+
+        m_Limit = fileConfiguration.getInt("Limit", 3);
+        m_ForceDelete = fileConfiguration.getInt("ForceDelete", 6);
+    }
+
+    public Integer getLimit() {
+        return m_Limit;
+    }
+    public void setLimit(Integer limit) {
+        m_Limit = limit;
+        fileConfiguration.set("Limit", limit);
+        NoMoreVillager.instance.saveConfig();
+    }
+
+    public Integer getForceDelete(){
+        return m_ForceDelete;
+    }
+    public void setForceDelete(Integer forceDelete){
+        m_ForceDelete = forceDelete;
+        fileConfiguration.set("ForceDelete", forceDelete);
+        NoMoreVillager.instance.saveConfig();
+    }
+
+    private Integer m_Limit;
+    private Integer m_ForceDelete;
+    FileConfiguration fileConfiguration;
+
+}

src/main/java/site/deercloud/nomorevillager/Events.java

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+package site.deercloud.nomorevillager;
+
+import org.bukkit.Chunk;
+import org.bukkit.Location;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Villager;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.*;
+import org.bukkit.event.inventory.TradeSelectEvent;
+import org.bukkit.inventory.Merchant;
+
+import java.util.ArrayList;
+import java.util.Objects;
+
+public class Events implements Listener {
+
+    @EventHandler
+    public void onBreed(EntityBreedEvent event) {
+        if (!(event.getEntity() instanceof Villager)) {
+            return;
+        }
+        Villager baby = (Villager) event.getEntity();
+        Location location = baby.getLocation();
+        Chunk chunk = location.getChunk();
+        ArrayList<Villager> villagers = new ArrayList<>();
+        // 遍历周围的区块
+        for (int x = -4; x <= 4; x++) {
+            for (int z = -4; z <= 4; z++) {
+                Chunk chunk1 = chunk.getWorld().getChunkAt(chunk.getX() + x, chunk.getZ() + z);
+                Entity[] entities = chunk1.getEntities();
+                for (Entity entity : entities) {
+                    if (entity instanceof Villager) {
+                        Villager villager = (Villager) entity;
+                        if (villager.getProfession() == Villager.Profession.NONE || !villager.isAdult()) {
+//                            NoMoreVillager.instance.getLogger().info("搜索到一个无业或未成年");
+                            villagers.add((Villager) entity);
+                        }
+                    }
+                }
+            }
+        }
+        // 达到强制执行最大值就开始删除
+        if (villagers.size() >= NoMoreVillager.configManager.getForceDelete()) {
+//            NoMoreVillager.instance.getLogger().info("开始清除");
+            int kill_number = villagers.size() - NoMoreVillager.configManager.getForceDelete();
+            for (int i = 0; i < kill_number; i++) {
+//                NoMoreVillager.instance.getLogger().info("清除了一个");
+                Villager villager = villagers.get(i);
+                villager.setHealth(0.0);
+            }
+        }
+        // 如果达到上限就禁止繁殖
+        if (villagers.size() >= NoMoreVillager.configManager.getLimit()) {
+//            NoMoreVillager.instance.getLogger().info("超出限额禁止繁殖");
+            ((Villager) event.getFather()).getInventory().clear();
+            ((Villager) event.getMother()).getInventory().clear();
+
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler
+    public void onPlayerTrade(TradeSelectEvent event) {
+//        NoMoreVillager.instance.getLogger().info("产生了交易行为");
+        Merchant merchant = event.getMerchant();
+        Location location = Objects.requireNonNull(merchant.getTrader()).getLocation();
+        Chunk chunk = location.getChunk();
+        ArrayList<Villager> villagers = new ArrayList<>();
+        // 遍历周围的区块
+        Entity[] entities = chunk.getEntities();
+        for (Entity entity : entities) {
+            if (entity instanceof Villager) {
+                Villager villager = (Villager) entity;
+                if (villager.getProfession() == Villager.Profession.NONE || !villager.isAdult()) {
+//                            NoMoreVillager.instance.getLogger().info("搜索到一个无业或未成年");
+                    villagers.add((Villager) entity);
+                }
+            }
+        }
+        // 达到强制执行最大值就开始删除
+        if (villagers.size() >= NoMoreVillager.configManager.getForceDelete()) {
+//            NoMoreVillager.instance.getLogger().info("开始清除");
+            int kill_number = villagers.size() - NoMoreVillager.configManager.getForceDelete();
+            for (int i = 0; i < kill_number; i++) {
+//                NoMoreVillager.instance.getLogger().info("清除了一个");
+                Villager villager = villagers.get(i);
+                villager.setHealth(0.0);
+            }
+        }
+    }
+}

src/main/java/site/deercloud/nomorevillager/NoMoreVillager.java

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+package site.deercloud.nomorevillager;
+
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class NoMoreVillager extends JavaPlugin {
+
+    @Override
+    public void onEnable() {
+        // Plugin startup logic
+        instance = this;
+        configManager = new ConfigManager();
+
+        getServer().getPluginManager().registerEvents(new Events(), this);
+    }
+
+    @Override
+    public void onDisable() {
+        // Plugin shutdown logic
+    }
+
+    public static NoMoreVillager instance;
+    public static ConfigManager configManager;
+}

src/main/resources/config.yml

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+# 一定区域内无业村民上限
+Limit: 3
+
+# 超过多少就强制删除
+ForceDelete: 6

src/main/resources/plugin.yml

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+name: NoMoreVillager
+version: '${project.version}'
+main: site.deercloud.nomorevillager.NoMoreVillager
+api-version: 1.13
+prefix: NMV
+load: STARTUP
+authors: [ Luming ]
+description: 限制村民行为，防止卡服。
+website: https://blog.deercloud.site