101 lines
3 KiB
Java
101 lines
3 KiB
Java
package net.minecraft.network.protocol.game;
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import net.minecraft.commands.arguments.EntityAnchorArgument;
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import net.minecraft.network.FriendlyByteBuf;
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import net.minecraft.network.codec.StreamCodec;
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import net.minecraft.network.protocol.Packet;
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import net.minecraft.network.protocol.PacketType;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.phys.Vec3;
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import org.jetbrains.annotations.Nullable;
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public class ClientboundPlayerLookAtPacket implements Packet<ClientGamePacketListener> {
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public static final StreamCodec<FriendlyByteBuf, ClientboundPlayerLookAtPacket> STREAM_CODEC = Packet.codec(
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ClientboundPlayerLookAtPacket::write, ClientboundPlayerLookAtPacket::new
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);
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private final double x;
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private final double y;
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private final double z;
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private final int entity;
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private final EntityAnchorArgument.Anchor fromAnchor;
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private final EntityAnchorArgument.Anchor toAnchor;
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private final boolean atEntity;
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public ClientboundPlayerLookAtPacket(EntityAnchorArgument.Anchor fromAnchor, double x, double y, double z) {
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this.fromAnchor = fromAnchor;
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this.x = x;
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this.y = y;
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this.z = z;
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this.entity = 0;
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this.atEntity = false;
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this.toAnchor = null;
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}
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public ClientboundPlayerLookAtPacket(EntityAnchorArgument.Anchor fromAnchor, Entity entity, EntityAnchorArgument.Anchor toAnchor) {
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this.fromAnchor = fromAnchor;
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this.entity = entity.getId();
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this.toAnchor = toAnchor;
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Vec3 vec3 = toAnchor.apply(entity);
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this.x = vec3.x;
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this.y = vec3.y;
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this.z = vec3.z;
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this.atEntity = true;
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}
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private ClientboundPlayerLookAtPacket(FriendlyByteBuf buffer) {
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this.fromAnchor = buffer.readEnum(EntityAnchorArgument.Anchor.class);
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this.x = buffer.readDouble();
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this.y = buffer.readDouble();
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this.z = buffer.readDouble();
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this.atEntity = buffer.readBoolean();
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if (this.atEntity) {
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this.entity = buffer.readVarInt();
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this.toAnchor = buffer.readEnum(EntityAnchorArgument.Anchor.class);
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} else {
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this.entity = 0;
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this.toAnchor = null;
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}
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}
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/**
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* Writes the raw packet data to the data stream.
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*/
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private void write(FriendlyByteBuf buffer) {
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buffer.writeEnum(this.fromAnchor);
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buffer.writeDouble(this.x);
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buffer.writeDouble(this.y);
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buffer.writeDouble(this.z);
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buffer.writeBoolean(this.atEntity);
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if (this.atEntity) {
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buffer.writeVarInt(this.entity);
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buffer.writeEnum(this.toAnchor);
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}
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}
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@Override
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public PacketType<ClientboundPlayerLookAtPacket> type() {
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return GamePacketTypes.CLIENTBOUND_PLAYER_LOOK_AT;
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}
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/**
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* Passes this Packet on to the NetHandler for processing.
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*/
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public void handle(ClientGamePacketListener handler) {
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handler.handleLookAt(this);
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}
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public EntityAnchorArgument.Anchor getFromAnchor() {
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return this.fromAnchor;
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}
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@Nullable
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public Vec3 getPosition(Level level) {
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if (this.atEntity) {
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Entity entity = level.getEntity(this.entity);
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return entity == null ? new Vec3(this.x, this.y, this.z) : this.toAnchor.apply(entity);
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} else {
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return new Vec3(this.x, this.y, this.z);
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}
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}
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}
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