Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2016. Diorite (by Bartomiej Mazur (aka GotoFinal)) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package org.diorite.impl.connection.packets.play.clientbound; import java.io.IOException; import java.util.UUID; import org.apache.commons.lang3.builder.ToStringBuilder; import org.apache.commons.lang3.builder.ToStringStyle; import org.diorite.impl.connection.EnumProtocol; import org.diorite.impl.connection.EnumProtocolDirection; import org.diorite.impl.connection.packets.PacketClass; import org.diorite.impl.connection.packets.PacketDataSerializer; import org.diorite.impl.connection.packets.play.PacketPlayClientboundListener; import org.diorite.BossBar.Color; import org.diorite.BossBar.Style; import org.diorite.chat.component.BaseComponent; @PacketClass(id = 0x0C, protocol = EnumProtocol.PLAY, direction = EnumProtocolDirection.CLIENTBOUND, size = 20) public class PacketPlayClientboundBoss extends PacketPlayClientbound { private UUID uuid; private Action action; private BaseComponent title; private float health; private Color color; private Style style; private boolean darkSky; private boolean isDragonBar; public PacketPlayClientboundBoss() { } public PacketPlayClientboundBoss(final UUID uuid, final BaseComponent title, final float health, final Color color, final Style style, final boolean darkSky, final boolean isDragonBar) { this.action = Action.ADD; this.uuid = uuid; this.title = title; this.health = health; this.color = color; this.style = style; this.darkSky = darkSky; this.isDragonBar = isDragonBar; } public PacketPlayClientboundBoss(final UUID uuid) { this.action = Action.REMOVE; this.uuid = uuid; } public PacketPlayClientboundBoss(final UUID uuid, final float health) { this.action = Action.UPDATE_HEALTH; this.uuid = uuid; this.health = health; } public PacketPlayClientboundBoss(final UUID uuid, final BaseComponent title) { this.action = Action.UPDATE_TITLE; this.uuid = uuid; this.title = title; } public PacketPlayClientboundBoss(final UUID uuid, final Color color, final Style style) { this.action = Action.UPDATE_STYLE; this.uuid = uuid; this.color = color; this.style = style; } public PacketPlayClientboundBoss(final UUID uuid, final boolean darkSky, final boolean isDragonBar) { this.action = Action.UPDATE_FLAGS; this.uuid = uuid; this.darkSky = darkSky; this.isDragonBar = isDragonBar; } public UUID getUuid() { return uuid; } public void setUuid(final UUID uuid) { this.uuid = uuid; } public Action getAction() { return action; } public void setAction(final Action action) { this.action = action; } public BaseComponent getTitle() { return title; } public void setTitle(final BaseComponent title) { this.title = title; } public float getHealth() { return health; } public void setHealth(final float health) { this.health = health; } public Color getColor() { return color; } public void setColor(final Color color) { this.color = color; } public Style getStyle() { return style; } public void setStyle(final Style style) { this.style = style; } public boolean isDarkSky() { return darkSky; } public void setDarkSky(final boolean darkSky) { this.darkSky = darkSky; } public boolean isDragonBar() { return isDragonBar; } public void setDragonBar(final boolean dragonBar) { isDragonBar = dragonBar; } private byte encodeFlags() { byte flags = 0; if (this.darkSky) { flags |= 0x01; } if (this.isDragonBar) { flags |= 0x02; } return flags; } private void decodeFlags(final byte flags) { this.darkSky = (flags & 0x01) > 0; this.isDragonBar = (flags & 0x02) > 0; } @Override public void readPacket(final PacketDataSerializer data) throws IOException { this.uuid = data.readUUID(); this.action = data.readEnum(Action.class); switch (this.action) { case ADD: { this.title = data.readBaseComponent(); this.health = data.readFloat(); this.color = data.readEnum(Color.class); this.style = data.readEnum(Style.class); this.decodeFlags(data.readByte()); break; } case UPDATE_HEALTH: { this.health = data.readFloat(); break; } case UPDATE_TITLE: { this.title = data.readBaseComponent(); break; } case UPDATE_STYLE: { this.color = data.readEnum(Color.class); this.style = data.readEnum(Style.class); break; } case UPDATE_FLAGS: { this.decodeFlags(data.readByte()); break; } } } @Override public void writeFields(final PacketDataSerializer data) throws IOException { data.writeUUID(this.uuid); data.writeEnum(this.action); switch (this.action) { case ADD: { data.writeBaseComponent(this.title); data.writeFloat(this.health); data.writeEnum(this.color); data.writeEnum(this.style); data.writeByte(this.encodeFlags()); break; } case UPDATE_HEALTH: { data.writeFloat(this.health); break; } case UPDATE_TITLE: { data.writeBaseComponent(this.title); break; } case UPDATE_STYLE: { data.writeEnum(this.color); data.writeEnum(this.style); break; } case UPDATE_FLAGS: { data.writeByte(this.encodeFlags()); break; } } } @Override public void handle(final PacketPlayClientboundListener listener) { listener.handle(this); } public enum Action { ADD, REMOVE, UPDATE_HEALTH, UPDATE_TITLE, UPDATE_STYLE, UPDATE_FLAGS } @Override public String toString() { return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).appendSuper(super.toString()) .append("uuid", this.uuid).append("action", this.action).append("title", this.title) .append("health", this.health).append("color", this.color).append("style", this.style) .append("darkSky", this.darkSky).append("isDragonBar", this.isDragonBar).toString(); } }