Method setFlag

src/main/java/net/minecraft/entity/Entity.java:2275–2287

Enable or disable a entity flag, see getEntityFlag to read the know flags.

(int flag, boolean set)

     * Enable or disable a entity flag, see getEntityFlag to read the know flags.
     */
    protected void setFlag(int flag, boolean set)
    {
        byte b0 = this.dataWatcher.getWatchableObjectByte(0);

        if (set)
        {
            this.dataWatcher.updateObject(0, (byte) (b0 | 1 << flag));
        }
        else
        {
            this.dataWatcher.updateObject(0, (byte) (b0 & ~(1 << flag)));
        }
    }

    public int getAir()
    {