Code/net/minecraft/network/protocol/game/ClientboundPlayerAbilitiesPacket.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.entity.player.Abilities;

public class ClientboundPlayerAbilitiesPacket implements Packet<ClientGamePacketListener> {
    public static final StreamCodec<FriendlyByteBuf, ClientboundPlayerAbilitiesPacket> STREAM_CODEC = Packet.codec(
        ClientboundPlayerAbilitiesPacket::write, ClientboundPlayerAbilitiesPacket::new
    );
    private static final int FLAG_INVULNERABLE = 1;
    private static final int FLAG_FLYING = 2;
    private static final int FLAG_CAN_FLY = 4;
    private static final int FLAG_INSTABUILD = 8;
    private final boolean invulnerable;
    private final boolean isFlying;
    private final boolean canFly;
    private final boolean instabuild;
    private final float flyingSpeed;
    private final float walkingSpeed;

    public ClientboundPlayerAbilitiesPacket(Abilities p_132667_) {
        this.invulnerable = p_132667_.invulnerable;
        this.isFlying = p_132667_.flying;
        this.canFly = p_132667_.mayfly;
        this.instabuild = p_132667_.instabuild;
        this.flyingSpeed = p_132667_.getFlyingSpeed();
        this.walkingSpeed = p_132667_.getWalkingSpeed();
    }

    private ClientboundPlayerAbilitiesPacket(FriendlyByteBuf p_179033_) {
        byte b0 = p_179033_.readByte();
        this.invulnerable = (b0 & 1) != 0;
        this.isFlying = (b0 & 2) != 0;
        this.canFly = (b0 & 4) != 0;
        this.instabuild = (b0 & 8) != 0;
        this.flyingSpeed = p_179033_.readFloat();
        this.walkingSpeed = p_179033_.readFloat();
    }

    private void write(FriendlyByteBuf p_132676_) {
        byte b0 = 0;
        if (this.invulnerable) {
            b0 = (byte)(b0 | 1);
        }

        if (this.isFlying) {
            b0 = (byte)(b0 | 2);
        }

        if (this.canFly) {
            b0 = (byte)(b0 | 4);
        }

        if (this.instabuild) {
            b0 = (byte)(b0 | 8);
        }

        p_132676_.writeByte(b0);
        p_132676_.writeFloat(this.flyingSpeed);
        p_132676_.writeFloat(this.walkingSpeed);
    }

    @Override
    public PacketType<ClientboundPlayerAbilitiesPacket> type() {
        return GamePacketTypes.CLIENTBOUND_PLAYER_ABILITIES;
    }

    public void handle(ClientGamePacketListener p_132673_) {
        p_132673_.handlePlayerAbilities(this);
    }

    public boolean isInvulnerable() {
        return this.invulnerable;
    }

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

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

    public boolean canInstabuild() {
        return this.instabuild;
    }

    public float getFlyingSpeed() {
        return this.flyingSpeed;
    }

    public float getWalkingSpeed() {
        return this.walkingSpeed;
    }
}