1.21.60 support

legacyver/legacypacket/boss_event.go

@@ -0,0 +1,115 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+const (
+	BossEventShow = iota
+	BossEventRegisterPlayer
+	BossEventHide
+	BossEventUnregisterPlayer
+	BossEventHealthPercentage
+	BossEventTitle
+	BossEventAppearanceProperties
+	BossEventTexture
+	BossEventRequest
+)
+
+const (
+	BossEventColourGrey = iota
+	BossEventColourBlue
+	BossEventColourRed
+	BossEventColourGreen
+	BossEventColourYellow
+	BossEventColourPurple
+	BossEventColourWhite
+)
+
+// BossEvent is sent by the server to make a specific 'boss event' occur in the
+// world. It includes features such as showing a boss bar to the player and
+// turning the sky dark.
+type BossEvent struct {
+	// BossEntityUniqueID is the unique ID of the boss entity that the boss
+	// event sent involves. By default, the health percentage and title of the
+	// boss bar depend on the health and name tag of this entity. If
+	// BossEntityUniqueID is the same as the client's entity unique ID, its
+	// HealthPercentage and BossBarTitle can be freely altered.
+	BossEntityUniqueID int64
+	// EventType is the type of the event. The fields written depend on the
+	// event type set, and some event types are sent by the client, whereas
+	// others are sent by the server. The event type is one of the constants
+	// above.
+	EventType uint32
+	// PlayerUniqueID is the unique ID of the player that is registered to or
+	// unregistered from the boss fight. It is set if EventType is either
+	// BossEventRegisterPlayer or BossEventUnregisterPlayer.
+	PlayerUniqueID int64
+	// BossBarTitle is the title shown above the boss bar. It may be set to set
+	// a different title if the BossEntityUniqueID matches the client's entity
+	// unique ID.
+	BossBarTitle string
+	// FilteredBossBarTitle is a filtered version of BossBarTitle with all the
+	// profanity removed. The client will use this over BossBarTitle if this
+	// field is not empty and they have the "Filter Profanity" setting enabled.
+	FilteredBossBarTitle string
+	// HealthPercentage is the percentage of health that is shown in the boss
+	// bar (0.0-1.0). The HealthPercentage may be set to a specific value if the
+	// BossEntityUniqueID matches the client's entity unique ID.
+	HealthPercentage float32
+	// ScreenDarkening currently seems not to do anything.
+	ScreenDarkening uint16
+	// Colour is the colour of the boss bar that is shown when a player is
+	// subscribed. It is only set if the EventType is BossEventShow,
+	// BossEventAppearanceProperties or BossEventTexture. This is functional as
+	// of 1.18 and can be any of the BossEventColour constants listed above.
+	Colour uint32
+	// Overlay is the overlay of the boss bar that is shown on top of the boss
+	// bar when a player is subscribed. It currently does not function. It is
+	// only set if the EventType is BossEventShow, BossEventAppearanceProperties
+	// or BossEventTexture.
+	Overlay uint32
+}
+
+// ID ...
+func (*BossEvent) ID() uint32 {
+	return packet.IDBossEvent
+}
+
+func (pk *BossEvent) Marshal(io protocol.IO) {
+	io.Varint64(&pk.BossEntityUniqueID)
+	io.Varuint32(&pk.EventType)
+	switch pk.EventType {
+	case BossEventShow:
+		io.String(&pk.BossBarTitle)
+		if proto.IsProtoGTE(io, proto.ID776) {
+			io.String(&pk.FilteredBossBarTitle)
+		}
+		io.Float32(&pk.HealthPercentage)
+		io.Uint16(&pk.ScreenDarkening)
+		io.Varuint32(&pk.Colour)
+		io.Varuint32(&pk.Overlay)
+	case BossEventRegisterPlayer, BossEventUnregisterPlayer, BossEventRequest:
+		io.Varint64(&pk.PlayerUniqueID)
+	case BossEventHide:
+		// No extra payload for this boss event type.
+	case BossEventHealthPercentage:
+		io.Float32(&pk.HealthPercentage)
+	case BossEventTitle:
+		io.String(&pk.BossBarTitle)
+		if proto.IsProtoGTE(io, proto.ID776) {
+			io.String(&pk.FilteredBossBarTitle)
+		}
+	case BossEventAppearanceProperties:
+		io.Uint16(&pk.ScreenDarkening)
+		io.Varuint32(&pk.Colour)
+		io.Varuint32(&pk.Overlay)
+	case BossEventTexture:
+		io.Varuint32(&pk.Colour)
+		io.Varuint32(&pk.Overlay)
+	default:
+		io.UnknownEnumOption(pk.EventType, "boss event type")
+	}
+}