95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
package basic
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import (
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"unsafe"
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"github.com/Tnze/go-mc/data/packetid"
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pk "github.com/Tnze/go-mc/net/packet"
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)
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// WorldInfo content player info in server.
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type WorldInfo struct {
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DimensionCodec struct {
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DimensionType interface{} `nbt:"minecraft:dimension_type"`
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WorldgenBiome interface{} `nbt:"minecraft:worldgen/biome"`
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}
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Dimension interface{}
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WorldNames []string // Identifiers for all worlds on the server.
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WorldName string // Name of the world being spawned into.
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HashedSeed int64 // First 8 bytes of the SHA-256 hash of the world's seed. Used client side for biome noise
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MaxPlayers int32 // Was once used by the client to draw the player list, but now is ignored.
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ViewDistance int32 // Render distance (2-32).
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ReducedDebugInfo bool // If true, a Notchian client shows reduced information on the debug screen. For servers in development, this should almost always be false.
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EnableRespawnScreen bool // Set to false when the doImmediateRespawn gamerule is true.
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IsDebug bool // True if the world is a debug mode world; debug mode worlds cannot be modified and have predefined blocks.
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IsFlat bool // True if the world is a superflat world; flat worlds have different void fog and a horizon at y=0 instead of y=63.
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}
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type PlayerInfo struct {
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EID int32 // The player's Entity ID (EID).
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Hardcore bool // Is hardcore
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Gamemode byte // Gamemode. 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
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PrevGamemode int8 // Previous Gamemode
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}
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// ServInfo contains information about the server implementation.
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type ServInfo struct {
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Brand string
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}
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func (p *Player) handleJoinGamePacket(packet pk.Packet) error {
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var WorldCount pk.VarInt
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var WorldNames = make([]pk.Identifier, 0)
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err := packet.Scan(
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(*pk.Int)(&p.EID),
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(*pk.Boolean)(&p.Hardcore),
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(*pk.UnsignedByte)(&p.Gamemode),
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(*pk.Byte)(&p.PrevGamemode),
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&WorldCount,
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pk.Ary{Len: &WorldCount, Ary: &WorldNames},
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pk.NBT(new(interface{})),
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pk.NBT(new(interface{})),
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(*pk.Identifier)(&p.WorldName),
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(*pk.Long)(&p.HashedSeed),
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(*pk.VarInt)(&p.MaxPlayers),
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(*pk.VarInt)(&p.ViewDistance),
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(*pk.Boolean)(&p.ReducedDebugInfo),
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(*pk.Boolean)(&p.EnableRespawnScreen),
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(*pk.Boolean)(&p.IsDebug),
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(*pk.Boolean)(&p.IsFlat),
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)
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if err != nil {
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return Error{err}
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}
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// This line should work "like" the following code but without copy things
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// p.WorldNames = make([]string, len(WorldNames))
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// for i, v := range WorldNames {
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// p.WorldNames[i] = string(v)
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// }
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p.WorldNames = *(*[]string)(unsafe.Pointer(&WorldNames))
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err = p.c.Conn.WritePacket(pk.Marshal( //PluginMessage packet
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packetid.CustomPayloadServerbound,
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pk.Identifier("minecraft:brand"),
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pk.String(p.Settings.Brand),
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))
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if err != nil {
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return Error{err}
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}
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err = p.c.Conn.WritePacket(pk.Marshal(
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packetid.Settings, // Client settings
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pk.String(p.Settings.Locale),
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pk.Byte(p.Settings.ViewDistance),
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pk.VarInt(p.Settings.ChatMode),
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pk.Boolean(p.Settings.ChatColors),
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pk.UnsignedByte(p.Settings.DisplayedSkinParts),
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pk.VarInt(p.Settings.MainHand),
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))
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if err != nil {
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return Error{err}
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}
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return nil
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}
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