Add 1.21.30

legacyver/legacypacket/mob_effect.go

@@ -0,0 +1,52 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// MobEffect is sent by the server to apply an effect to the player, for example an effect like poison. It may
+// also be used to modify existing effects, or removing them completely.
+type MobEffect struct {
+	// EntityRuntimeID is the runtime ID of the entity. The runtime ID is unique for each world session, and
+	// entities are generally identified in packets using this runtime ID.
+	EntityRuntimeID uint64
+	// Operation is the operation of the packet. It is either MobEffectAdd, MobEffectModify or MobEffectRemove
+	// and specifies the result of the packet client-side.
+	Operation byte
+	// EffectType is the ID of the effect to be added, removed or modified. It is one of the constants that
+	// may be found above.
+	EffectType int32
+	// Amplifier is the amplifier of the effect. Take note that the amplifier is not the same as the effect's
+	// level. The level is usually one higher than the amplifier, and the amplifier can actually be negative
+	// to reverse the behaviour effect.
+	Amplifier int32
+	// Particles specifies if viewers of the entity that gets the effect shows particles around it. If set to
+	// false, no particles are emitted around the entity.
+	Particles bool
+	// Duration is the duration of the effect in seconds. After the duration has elapsed, the effect will be
+	// removed automatically client-side.
+	Duration int32
+	// Tick is the server tick at which the packet was sent. It is used in relation to CorrectPlayerMovePrediction.
+	Tick uint64
+}
+
+// ID ...
+func (*MobEffect) ID() uint32 {
+	return packet.IDMobEffect
+}
+
+func (pk *MobEffect) Marshal(io protocol.IO) {
+	io.Varuint64(&pk.EntityRuntimeID)
+	io.Uint8(&pk.Operation)
+	io.Varint32(&pk.EffectType)
+	io.Varint32(&pk.Amplifier)
+	io.Bool(&pk.Particles)
+	io.Varint32(&pk.Duration)
+	if proto.IsProtoGTE(io, proto.ID748) {
+		io.Varuint64(&pk.Tick)
+	} else {
+		io.Uint64(&pk.Tick)
+	}
+}