minecraft-src/net/minecraft/network/protocol/game/ServerboundMovePlayerPacket.java

package net.minecraft.network.protocol.game;

import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.network.protocol.Packet;
import net.minecraft.network.protocol.PacketType;
import net.minecraft.world.phys.Vec3;

public abstract class ServerboundMovePlayerPacket implements Packet<ServerGamePacketListener> {
	private static final int FLAG_ON_GROUND = 1;
	private static final int FLAG_HORIZONTAL_COLLISION = 2;
	protected final double x;
	protected final double y;
	protected final double z;
	protected final float yRot;
	protected final float xRot;
	protected final boolean onGround;
	protected final boolean horizontalCollision;
	protected final boolean hasPos;
	protected final boolean hasRot;

	static int packFlags(boolean onGround, boolean horizontalCollision) {
		int i = 0;
		if (onGround) {
			i |= 1;
		}

		if (horizontalCollision) {
			i |= 2;
		}

		return i;
	}

	static boolean unpackOnGround(int flags) {
		return (flags & 1) != 0;
	}

	static boolean unpackHorizontalCollision(int flags) {
		return (flags & 2) != 0;
	}

	protected ServerboundMovePlayerPacket(
		double x, double y, double z, float yRot, float xRot, boolean onGround, boolean horizontalCollision, boolean hasPos, boolean hasRot
	) {
		this.x = x;
		this.y = y;
		this.z = z;
		this.yRot = yRot;
		this.xRot = xRot;
		this.onGround = onGround;
		this.horizontalCollision = horizontalCollision;
		this.hasPos = hasPos;
		this.hasRot = hasRot;
	}

	@Override
	public abstract PacketType<? extends ServerboundMovePlayerPacket> type();

	/**
	 * Passes this Packet on to the NetHandler for processing.
	 */
	public void handle(ServerGamePacketListener handler) {
		handler.handleMovePlayer(this);
	}

	public double getX(double defaultValue) {
		return this.hasPos ? this.x : defaultValue;
	}

	public double getY(double defaultValue) {
		return this.hasPos ? this.y : defaultValue;
	}

	public double getZ(double defaultValue) {
		return this.hasPos ? this.z : defaultValue;
	}

	public float getYRot(float defaultValue) {
		return this.hasRot ? this.yRot : defaultValue;
	}

	public float getXRot(float defaultValue) {
		return this.hasRot ? this.xRot : defaultValue;
	}

	public boolean isOnGround() {
		return this.onGround;
	}

	public boolean horizontalCollision() {
		return this.horizontalCollision;
	}

	public boolean hasPosition() {
		return this.hasPos;
	}

	public boolean hasRotation() {
		return this.hasRot;
	}

	public static class Pos extends ServerboundMovePlayerPacket {
		public static final StreamCodec<FriendlyByteBuf, ServerboundMovePlayerPacket.Pos> STREAM_CODEC = Packet.codec(
			ServerboundMovePlayerPacket.Pos::write, ServerboundMovePlayerPacket.Pos::read
		);

		public Pos(Vec3 pos, boolean onGround, boolean horizontalCollision) {
			super(pos.x, pos.y, pos.z, 0.0F, 0.0F, onGround, horizontalCollision, true, false);
		}

		public Pos(double x, double y, double z, boolean onGround, boolean horizontalCollision) {
			super(x, y, z, 0.0F, 0.0F, onGround, horizontalCollision, true, false);
		}

		private static ServerboundMovePlayerPacket.Pos read(FriendlyByteBuf buffer) {
			double d = buffer.readDouble();
			double e = buffer.readDouble();
			double f = buffer.readDouble();
			short s = buffer.readUnsignedByte();
			boolean bl = ServerboundMovePlayerPacket.unpackOnGround(s);
			boolean bl2 = ServerboundMovePlayerPacket.unpackHorizontalCollision(s);
			return new ServerboundMovePlayerPacket.Pos(d, e, f, bl, bl2);
		}

		/**
		 * Writes the raw packet data to the data stream.
		 */
		private void write(FriendlyByteBuf buffer) {
			buffer.writeDouble(this.x);
			buffer.writeDouble(this.y);
			buffer.writeDouble(this.z);
			buffer.writeByte(ServerboundMovePlayerPacket.packFlags(this.onGround, this.horizontalCollision));
		}

		@Override
		public PacketType<ServerboundMovePlayerPacket.Pos> type() {
			return GamePacketTypes.SERVERBOUND_MOVE_PLAYER_POS;
		}
	}

	public static class PosRot extends ServerboundMovePlayerPacket {
		public static final StreamCodec<FriendlyByteBuf, ServerboundMovePlayerPacket.PosRot> STREAM_CODEC = Packet.codec(
			ServerboundMovePlayerPacket.PosRot::write, ServerboundMovePlayerPacket.PosRot::read
		);

		public PosRot(Vec3 pos, float yRot, float xRot, boolean onGround, boolean horizontalCollision) {
			super(pos.x, pos.y, pos.z, yRot, xRot, onGround, horizontalCollision, true, true);
		}

		public PosRot(double x, double y, double z, float yRot, float xRot, boolean onGround, boolean horizontalCollision) {
			super(x, y, z, yRot, xRot, onGround, horizontalCollision, true, true);
		}

		private static ServerboundMovePlayerPacket.PosRot read(FriendlyByteBuf buffer) {
			double d = buffer.readDouble();
			double e = buffer.readDouble();
			double f = buffer.readDouble();
			float g = buffer.readFloat();
			float h = buffer.readFloat();
			short s = buffer.readUnsignedByte();
			boolean bl = ServerboundMovePlayerPacket.unpackOnGround(s);
			boolean bl2 = ServerboundMovePlayerPacket.unpackHorizontalCollision(s);
			return new ServerboundMovePlayerPacket.PosRot(d, e, f, g, h, bl, bl2);
		}

		/**
		 * Writes the raw packet data to the data stream.
		 */
		private void write(FriendlyByteBuf buffer) {
			buffer.writeDouble(this.x);
			buffer.writeDouble(this.y);
			buffer.writeDouble(this.z);
			buffer.writeFloat(this.yRot);
			buffer.writeFloat(this.xRot);
			buffer.writeByte(ServerboundMovePlayerPacket.packFlags(this.onGround, this.horizontalCollision));
		}

		@Override
		public PacketType<ServerboundMovePlayerPacket.PosRot> type() {
			return GamePacketTypes.SERVERBOUND_MOVE_PLAYER_POS_ROT;
		}
	}

	public static class Rot extends ServerboundMovePlayerPacket {
		public static final StreamCodec<FriendlyByteBuf, ServerboundMovePlayerPacket.Rot> STREAM_CODEC = Packet.codec(
			ServerboundMovePlayerPacket.Rot::write, ServerboundMovePlayerPacket.Rot::read
		);

		public Rot(float yRot, float xRot, boolean onGround, boolean horizontalCollision) {
			super(0.0, 0.0, 0.0, yRot, xRot, onGround, horizontalCollision, false, true);
		}

		private static ServerboundMovePlayerPacket.Rot read(FriendlyByteBuf buffer) {
			float f = buffer.readFloat();
			float g = buffer.readFloat();
			short s = buffer.readUnsignedByte();
			boolean bl = ServerboundMovePlayerPacket.unpackOnGround(s);
			boolean bl2 = ServerboundMovePlayerPacket.unpackHorizontalCollision(s);
			return new ServerboundMovePlayerPacket.Rot(f, g, bl, bl2);
		}

		/**
		 * Writes the raw packet data to the data stream.
		 */
		private void write(FriendlyByteBuf buffer) {
			buffer.writeFloat(this.yRot);
			buffer.writeFloat(this.xRot);
			buffer.writeByte(ServerboundMovePlayerPacket.packFlags(this.onGround, this.horizontalCollision));
		}

		@Override
		public PacketType<ServerboundMovePlayerPacket.Rot> type() {
			return GamePacketTypes.SERVERBOUND_MOVE_PLAYER_ROT;
		}
	}

	public static class StatusOnly extends ServerboundMovePlayerPacket {
		public static final StreamCodec<FriendlyByteBuf, ServerboundMovePlayerPacket.StatusOnly> STREAM_CODEC = Packet.codec(
			ServerboundMovePlayerPacket.StatusOnly::write, ServerboundMovePlayerPacket.StatusOnly::read
		);

		public StatusOnly(boolean onGround, boolean horizontalCollision) {
			super(0.0, 0.0, 0.0, 0.0F, 0.0F, onGround, horizontalCollision, false, false);
		}

		private static ServerboundMovePlayerPacket.StatusOnly read(FriendlyByteBuf buffer) {
			short s = buffer.readUnsignedByte();
			boolean bl = ServerboundMovePlayerPacket.unpackOnGround(s);
			boolean bl2 = ServerboundMovePlayerPacket.unpackHorizontalCollision(s);
			return new ServerboundMovePlayerPacket.StatusOnly(bl, bl2);
		}

		private void write(FriendlyByteBuf buffer) {
			buffer.writeByte(ServerboundMovePlayerPacket.packFlags(this.onGround, this.horizontalCollision));
		}

		@Override
		public PacketType<ServerboundMovePlayerPacket.StatusOnly> type() {
			return GamePacketTypes.SERVERBOUND_MOVE_PLAYER_STATUS_ONLY;
		}
	}
}