LOOHP-Limbo/src/main/java/com/loohp/limbo/Server/Packets/PacketPlayOutPlayerAbilities.java

package com.loohp.limbo.server.packets;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;

public class PacketPlayOutPlayerAbilities extends PacketOut {
	
	public enum PlayerAbilityFlags {
		INVULNERABLE(0x01),
		FLY(0x02),
		ALLOW_FLYING(0x04),
		CREATIVE(0x08);
		
		int bitvalue;
		
		PlayerAbilityFlags(int bitvalue) {
			this.bitvalue = bitvalue;
		}
		
		public int getValue() {
			return bitvalue;
		}
	}

	private PlayerAbilityFlags[] flags;
	private float flySpeed;
	private float fieldOfField;

	public PacketPlayOutPlayerAbilities(float flySpeed, float fieldOfField, PlayerAbilityFlags... flags) {
		this.flags = flags;
		this.flySpeed = flySpeed;
		this.fieldOfField = fieldOfField;
	}

	public PlayerAbilityFlags[] getFlags() {
		return flags;
	}

	public float getFlySpeed() {
		return flySpeed;
	}

	public float getFieldOfField() {
		return fieldOfField;
	}
	
	@Override
	public byte[] serializePacket() throws IOException {
		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
		
		DataOutputStream output = new DataOutputStream(buffer);
		output.writeByte(Packet.getPlayOut().get(getClass()));
		int value = 0;
		for (PlayerAbilityFlags flag : flags) {
			value = value | flag.getValue();
		}
		
		output.writeByte(value);
		output.writeFloat(flySpeed);
		output.writeFloat(fieldOfField);
		
		return buffer.toByteArray();
	}

}