更新: 给向量工具添加一些方法

Author: 602723113

src/main/java/top/zoyn/particlelib/ParticleLib.java

@@ -1,16 +1,11 @@
 package top.zoyn.particlelib;
 
-import com.google.common.collect.Lists;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
-import org.bukkit.Particle;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
-import top.zoyn.particlelib.pobject.Wing;
-
-import java.util.List;
 
 /**
  * 粒子库主类
@@ -50,6 +45,7 @@ public boolean onCommand(CommandSender sender, Command cmd, String label, String
         Player player = (Player) sender;
         Location origin = player.getLocation();
 
+
 //        List<String> points = Lists.newArrayList();
 //        points.add("  aaaaa");
 //        points.add(" aaaaa");

src/main/java/top/zoyn/particlelib/utils/VectorUtils.java

@@ -1,5 +1,6 @@
 package top.zoyn.particlelib.utils;
 
+import org.bukkit.Location;
 import org.bukkit.util.Vector;
 
 /**
@@ -9,6 +10,27 @@
  */
 public class VectorUtils {
 
+    public static Vector getLeftDirection(Location location) {
+        return rotateAroundAxisY(location.getDirection().clone(), 90);
+    }
+
+    public static Vector getRightDirection(Location location) {
+        return rotateAroundAxisY(location.getDirection().clone(), -90);
+    }
+
+    /**
+     * 得到一个单位为 1 的向上的向量
+     *
+     * @return {@link Vector}
+     */
+    public static Vector getUpVector() {
+        return getUpVector(1);
+    }
+
+    public static Vector getUpVector(double multiply) {
+        return new Vector(0, 1, 0).multiply(multiply);
+    }
+
     public static Vector rotateAroundAxisX(Vector v, double angle) {
         angle = Math.toRadians(angle);
         double cos = Math.cos(angle);