添加范围锁定工具类

src/main/java/net/mcreator/superbwarfare/event/PlayerEventHandler.java

@@ -6,6 +6,7 @@ import net.mcreator.superbwarfare.init.ModSounds;
 import net.mcreator.superbwarfare.init.ModTags;
 import net.mcreator.superbwarfare.network.ModVariables;
 import net.mcreator.superbwarfare.network.message.SimulationDistanceMessage;
+import net.mcreator.superbwarfare.tools.SeekTool;
 import net.mcreator.superbwarfare.tools.SoundTool;
 import net.minecraft.core.BlockPos;
 import net.minecraft.nbt.CompoundTag;
@@ -17,11 +18,14 @@ import net.minecraft.util.Mth;
 import net.minecraft.util.RandomSource;
 import net.minecraft.world.effect.MobEffectInstance;
 import net.minecraft.world.effect.MobEffects;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Items;
 import net.minecraft.world.level.ClipContext;
 import net.minecraft.world.level.Level;
+import net.minecraft.world.level.LevelAccessor;
 import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.event.TickEvent;
 import net.minecraftforge.event.entity.player.PlayerEvent;
@@ -92,6 +96,7 @@ public class PlayerEventHandler {
                 handleChangeFireRate(player);
                 handleBocekPulling(player);
                 handleGunRecoil(player);
+                handleWeaponSeek(player, event.player.level());
             }
 
             handleGround(player);
@@ -103,6 +108,16 @@ public class PlayerEventHandler {
         }
     }
 
+    //测试用
+    private static void handleWeaponSeek(Player player, LevelAccessor level) {
+        if (player.getCapability(ModVariables.PLAYER_VARIABLES_CAPABILITY, null).orElse(new ModVariables.PlayerVariables()).zooming) {
+            Entity seekingEntity = SeekTool.seekEntity(player, level, 256,30);
+            if (seekingEntity instanceof LivingEntity _entity && !_entity.level().isClientSide())
+                _entity.addEffect(new MobEffectInstance(MobEffects.GLOWING, 2, 0));
+
+        }
+    }
+
     private static void handleWeaponSway(Player player) {
         if (player.getMainHandItem().is(ModTags.Items.GUN)) {
             float pose;

src/main/java/net/mcreator/superbwarfare/tools/SeekTool.java

@@ -0,0 +1,37 @@
+package net.mcreator.superbwarfare.tools;
+
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.level.LevelAccessor;
+import net.minecraft.world.phys.AABB;
+import net.minecraft.world.phys.Vec3;
+
+import java.util.Comparator;
+import java.util.List;
+
+public class SeekTool {
+
+    // TODO 固体方块阻挡搜寻，以及目标锁定为夹角最小的实体
+    public static Entity seekEntity(Entity entity, LevelAccessor world, double seekRange, double seekAngle) {
+        final Vec3 _center = new Vec3(entity.getX(), entity.getY(), entity.getZ());
+        List<Entity> _entfound = world.getEntitiesOfClass(Entity.class, new AABB(_center, _center).inflate(seekRange), e -> true).stream().sorted(Comparator.comparingDouble(_entcnd -> _entcnd.distanceToSqr(_center))).toList();
+        for (Entity entityiterator : _entfound) {
+            if ((new Object() {
+                public double angle(Vec3 _start, Vec3 _end) {
+                    double _d0 = _start.length();
+                    double _d1 = _end.length();
+                    if (_d0 > 0.0D && _d1 > 0.0D) {
+                        return Math.toDegrees(Math.acos(_start.dot(_end) / (_d0 * _d1)));
+                    } else {
+                        return 0.0D;
+                    }
+                }
+            }).angle((new Vec3((entityiterator.getX() - entity.getX()), (entityiterator.getY() - entity.getY()), (entityiterator.getZ() - entity.getZ()))), (entity.getLookAngle())) < seekAngle && entityiterator instanceof LivingEntity) {
+                if (entityiterator != entity) {
+                    return entityiterator;
+                }
+            }
+        }
+        return null;
+    }
+}