尝试自行实现客户端实体动量同步

src/main/java/com/atsuishio/superbwarfare/ModUtils.java

@@ -178,6 +178,7 @@ public class ModUtils {
         addNetworkMessage(SwitchVehicleWeaponMessage.class, SwitchVehicleWeaponMessage::encode, SwitchVehicleWeaponMessage::decode, SwitchVehicleWeaponMessage::handler);
         addNetworkMessage(RadarSetTargetMessage.class, RadarSetTargetMessage::encode, RadarSetTargetMessage::decode, RadarSetTargetMessage::handler);
         addNetworkMessage(ChangeVehicleSeatMessage.class, ChangeVehicleSeatMessage::encode, ChangeVehicleSeatMessage::decode, ChangeVehicleSeatMessage::handler);
+        addNetworkMessage(ClientMotionSyncMessage.class, ClientMotionSyncMessage::encode, ClientMotionSyncMessage::decode, ClientMotionSyncMessage::handler, Optional.of(NetworkDirection.PLAY_TO_CLIENT));
 
         event.enqueueWork(() -> BrewingRecipeRegistry.addRecipe(Ingredient.of(PotionUtils.setPotion(new ItemStack(Items.POTION), Potions.WATER)),
                 Ingredient.of(Items.LIGHTNING_ROD), PotionUtils.setPotion(new ItemStack(Items.POTION), ModPotion.SHOCK.get())));

src/main/java/com/atsuishio/superbwarfare/entity/projectile/CannonShellEntity.java

@@ -5,6 +5,7 @@ import com.atsuishio.superbwarfare.config.server.ExplosionConfig;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
 import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.network.message.ClientIndicatorMessage;
+import com.atsuishio.superbwarfare.network.message.ClientMotionSyncMessage;
 import com.atsuishio.superbwarfare.tools.ChunkLoadTool;
 import com.atsuishio.superbwarfare.tools.CustomExplosion;
 import com.atsuishio.superbwarfare.tools.ParticleTool;
@@ -50,7 +51,7 @@ import software.bernie.geckolib.util.GeckoLibUtil;
 import java.util.HashSet;
 import java.util.Set;
 
-public class CannonShellEntity extends ThrowableItemProjectile implements GeoEntity {
+public class CannonShellEntity extends ThrowableItemProjectile implements GeoEntity, FastProjectile {
 
     public static final EntityDataAccessor<String> ANIMATION = SynchedEntityData.defineId(CannonShellEntity.class, EntityDataSerializers.STRING);
     private final AnimatableInstanceCache cache = GeckoLibUtil.createInstanceCache(this);
@@ -255,6 +256,15 @@ public class CannonShellEntity extends ThrowableItemProjectile implements GeoEnt
             }
             this.discard();
         }
+
+        this.syncMotion();
+    }
+
+    @Override
+    public void syncMotion() {
+        if (!this.level().isClientSide) {
+            ModUtils.PACKET_HANDLER.send(PacketDistributor.ALL.noArg(), new ClientMotionSyncMessage(this));
+        }
     }
 
     private void causeExplode(Entity entity) {

src/main/java/com/atsuishio/superbwarfare/entity/projectile/FastProjectile.java

@@ -1,4 +1,6 @@
 package com.atsuishio.superbwarfare.entity.projectile;
 
 public interface FastProjectile {
+
+    void syncMotion();
 }

src/main/java/com/atsuishio/superbwarfare/entity/projectile/ProjectileEntity.java

@@ -9,6 +9,7 @@ import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
 import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.item.Transcript;
 import com.atsuishio.superbwarfare.network.message.ClientIndicatorMessage;
+import com.atsuishio.superbwarfare.network.message.ClientMotionSyncMessage;
 import com.atsuishio.superbwarfare.network.message.PlayerGunKillMessage;
 import com.atsuishio.superbwarfare.tools.*;
 import net.minecraft.core.BlockPos;
@@ -300,6 +301,15 @@ public class ProjectileEntity extends Projectile implements IEntityAdditionalSpa
                     Math.max(this.getDeltaMovement().length() - 1.1 * this.tickCount, 0.2), true
             );
         }
+
+        this.syncMotion();
+    }
+
+    @Override
+    public void syncMotion() {
+        if (!this.level().isClientSide) {
+            ModUtils.PACKET_HANDLER.send(PacketDistributor.ALL.noArg(), new ClientMotionSyncMessage(this));
+        }
     }
 
     @Override

src/main/java/com/atsuishio/superbwarfare/init/ModEntities.java

@@ -55,9 +55,9 @@ public class ModEntities {
     public static final RegistryObject<EntityType<MortarShellEntity>> MORTAR_SHELL = register("projectile_mortar_shell",
             EntityType.Builder.<MortarShellEntity>of(MortarShellEntity::new, MobCategory.MISC).setShouldReceiveVelocityUpdates(true).setTrackingRange(64).setUpdateInterval(1).setCustomClientFactory(MortarShellEntity::new).sized(0.5f, 0.5f));
     public static final RegistryObject<EntityType<ProjectileEntity>> PROJECTILE = register("projectile",
-            EntityType.Builder.<ProjectileEntity>of(ProjectileEntity::new, MobCategory.MISC).setCustomClientFactory(ProjectileEntity::new).setTrackingRange(64).noSave().noSummon().sized(0.25f, 0.25f));
+            EntityType.Builder.<ProjectileEntity>of(ProjectileEntity::new, MobCategory.MISC).setShouldReceiveVelocityUpdates(false).setCustomClientFactory(ProjectileEntity::new).setTrackingRange(64).noSave().noSummon().sized(0.25f, 0.25f));
     public static final RegistryObject<EntityType<CannonShellEntity>> CANNON_SHELL = register("projectile_cannon_shell",
-            EntityType.Builder.<CannonShellEntity>of(CannonShellEntity::new, MobCategory.MISC).setShouldReceiveVelocityUpdates(true).setTrackingRange(64).setUpdateInterval(1).setCustomClientFactory(CannonShellEntity::new).sized(0.5f, 0.5f));
+            EntityType.Builder.<CannonShellEntity>of(CannonShellEntity::new, MobCategory.MISC).setShouldReceiveVelocityUpdates(false).setTrackingRange(64).setUpdateInterval(1).setCustomClientFactory(CannonShellEntity::new).sized(0.5f, 0.5f));
     public static final RegistryObject<EntityType<HandGrenadeEntity>> HAND_GRENADE_ENTITY = register("projectile_hand_grenade_entity",
             EntityType.Builder.<HandGrenadeEntity>of(HandGrenadeEntity::new, MobCategory.MISC).setShouldReceiveVelocityUpdates(true).setTrackingRange(64).setUpdateInterval(1).setCustomClientFactory(HandGrenadeEntity::new).sized(0.3f, 0.3f));
     public static final RegistryObject<EntityType<RgoGrenadeEntity>> RGO_GRENADE = register("projectile_rgo_grenade",

src/main/java/com/atsuishio/superbwarfare/mixins/ClientboundSetEntityMotionPacketMixin.java

@@ -1,74 +0,0 @@
-package com.atsuishio.superbwarfare.mixins;
-
-import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.network.protocol.game.ClientboundSetEntityMotionPacket;
-import net.minecraft.world.phys.Vec3;
-import org.spongepowered.asm.mixin.Final;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Mutable;
-import org.spongepowered.asm.mixin.Shadow;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.Redirect;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-/**
- * From Fast Projectile Fix
- * <br>
- * Author: Roki27
- */
-@Mixin(ClientboundSetEntityMotionPacket.class)
-public class ClientboundSetEntityMotionPacketMixin {
-
-    @Mutable
-    @Final
-    @Shadow
-    private int id;
-
-    @Mutable
-    @Final
-    @Shadow
-    private int xa;
-
-    @Mutable
-    @Final
-    @Shadow
-    private int ya;
-
-    @Mutable
-    @Final
-    @Shadow
-    private int za;
-
-    // TODO 实现仅对 FastProjectile 对象的动量修改
-    @Inject(method = "<init>(ILnet/minecraft/world/phys/Vec3;)V", at = @At(value = "RETURN"))
-    public void init(int entityId, Vec3 motion, CallbackInfo ci) {
-        this.xa = (int) (motion.x * 8000.0D);
-        this.ya = (int) (motion.y * 8000.0D);
-        this.za = (int) (motion.z * 8000.0D);
-    }
-
-    @Redirect(method = "<init>(Lnet/minecraft/network/FriendlyByteBuf;)V",
-            at = @At(value = "INVOKE", target = "Lnet/minecraft/network/FriendlyByteBuf;readShort()S"))
-    public short readShort(FriendlyByteBuf instance) {
-        return 0;
-    }
-
-    @Inject(method = "<init>(Lnet/minecraft/network/FriendlyByteBuf;)V", at = @At(value = "RETURN"), cancellable = true)
-    public void read(FriendlyByteBuf buf, CallbackInfo ci) {
-        ci.cancel();
-        this.xa = buf.readInt();
-        this.ya = buf.readInt();
-        this.za = buf.readInt();
-    }
-
-    @Inject(method = "Lnet/minecraft/network/protocol/game/ClientboundSetEntityMotionPacket;" +
-            "write(Lnet/minecraft/network/FriendlyByteBuf;)V", at = @At(value = "HEAD"), cancellable = true)
-    public void write(FriendlyByteBuf buf, CallbackInfo ci) {
-        ci.cancel();
-        buf.writeVarInt(this.id);
-        buf.writeInt(this.xa);
-        buf.writeInt(this.ya);
-        buf.writeInt(this.za);
-    }
-}

src/main/java/com/atsuishio/superbwarfare/network/ClientPacketHandler.java

@@ -7,10 +7,7 @@ import com.atsuishio.superbwarfare.config.client.KillMessageConfig;
 import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.event.KillMessageHandler;
 import com.atsuishio.superbwarfare.menu.EnergyMenu;
-import com.atsuishio.superbwarfare.network.message.ClientIndicatorMessage;
+import com.atsuishio.superbwarfare.network.message.*;
-import com.atsuishio.superbwarfare.network.message.ContainerDataMessage;
-import com.atsuishio.superbwarfare.network.message.GunsDataMessage;
-import com.atsuishio.superbwarfare.network.message.RadarMenuOpenMessage;
 import com.atsuishio.superbwarfare.tools.GunsTool;
 import com.atsuishio.superbwarfare.tools.PlayerKillRecord;
 import net.minecraft.client.CameraType;
@@ -88,4 +85,15 @@ public class ClientPacketHandler {
             Minecraft.getInstance().options.setCameraType(Objects.requireNonNullElse(ClientEventHandler.lastCameraType, CameraType.FIRST_PERSON));
         }
     }
+
+    public static void handleClientSyncMotion(ClientMotionSyncMessage message, Supplier<NetworkEvent.Context> ctx) {
+        if (ctx.get().getDirection().getReceptionSide() == LogicalSide.CLIENT) {
+            var level = Minecraft.getInstance().level;
+            if (level == null) return;
+            Entity entity = level.getEntity(message.id);
+            if (entity != null) {
+                entity.lerpMotion(message.x, message.y, message.z);
+            }
+        }
+    }
 }

src/main/java/com/atsuishio/superbwarfare/network/message/ClientMotionSyncMessage.java

@@ -0,0 +1,51 @@
+package com.atsuishio.superbwarfare.network.message;
+
+import com.atsuishio.superbwarfare.network.ClientPacketHandler;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.phys.Vec3;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.fml.DistExecutor;
+import net.minecraftforge.network.NetworkEvent;
+
+import java.util.function.Supplier;
+
+public class ClientMotionSyncMessage {
+
+    public final int id;
+    public final double x;
+    public final double y;
+    public final double z;
+
+    public ClientMotionSyncMessage(Entity entity) {
+        this(entity.getId(), entity.getDeltaMovement());
+    }
+
+    public ClientMotionSyncMessage(int id, Vec3 motion) {
+        this.id = id;
+        this.x = motion.x;
+        this.y = motion.y;
+        this.z = motion.z;
+    }
+
+    public static void encode(ClientMotionSyncMessage message, FriendlyByteBuf buffer) {
+        buffer.writeVarInt(message.id);
+        buffer.writeDouble(message.x);
+        buffer.writeDouble(message.y);
+        buffer.writeDouble(message.z);
+    }
+
+    public static ClientMotionSyncMessage decode(FriendlyByteBuf buffer) {
+        int id = buffer.readVarInt();
+        double x = buffer.readDouble();
+        double y = buffer.readDouble();
+        double z = buffer.readDouble();
+        return new ClientMotionSyncMessage(id, new Vec3(x, y, z));
+    }
+
+    public static void handler(ClientMotionSyncMessage message, Supplier<NetworkEvent.Context> ctx) {
+        ctx.get().enqueueWork(() -> DistExecutor.unsafeRunWhenOn(Dist.CLIENT,
+                () -> () -> ClientPacketHandler.handleClientSyncMotion(message, ctx)));
+        ctx.get().setPacketHandled(true);
+    }
+}

src/main/resources/mixins.superbwarfare.json

@@ -4,7 +4,6 @@
   "compatibilityLevel": "JAVA_17",
   "refmap": "mixins.superbwarfare.refmap.json",
   "mixins": [
-    "ClientboundSetEntityMotionPacketMixin",
     "ClientboundSetPassengersPacketMixin",
     "ExplosionMixin",
     "LivingEntityMixin",