Add high-level protocol (de)serialization

1 files changed, 155 insertions, 0 deletions

diff --git a/tosrvcmds.go b/tosrvcmds.go
new file mode 100644
index 0000000..4f60600
--- /dev/null
+++ b/tosrvcmds.go
@@ -0,0 +1,155 @@
+//go:generate ./cmdno.sh tosrvcmds ToSrv toSrv uint16 Cmd newToSrvCmd
+
+package mt
+
+type ToSrvCmd interface {
+	Cmd
+	toSrvCmdNo() uint16
+}
+
+// ToSrvNil is the first packet sent in a connection.
+type ToSrvNil struct{}
+
+// ToSrvInit is sent as unreliable after ToSrvNil and is re-sent repeatedly
+// until either the server replies with ToCltHello or 10 seconds pass and
+// the connection times out.
+type ToSrvInit struct {
+	SerializeVer             uint8
+	SupportedCompression     CompressionModes
+	MinProtoVer, MaxProtoVer uint16
+	PlayerName               string
+
+	//mt:opt
+	SendFullItemMeta bool
+}
+
+// ToSrvInit2 is sent after ToCltAcceptAuth is received.
+// The server responds to ToSrvInit2 by sending ToCltItemDefs, ToCltNodeDefs,
+// ToCltAnnounceMedia, ToCltMovement and ToCltCSMRestrictionFlags.
+type ToSrvInit2 struct {
+	Lang string
+}
+
+// ToSrvModChanJoin attempts to join a mod channel.
+type ToSrvModChanJoin struct {
+	Channel string
+}
+
+// ToSrvModChanJoin attempts to leave a mod channel.
+type ToSrvModChanLeave struct {
+	Channel string
+}
+
+// ToSrvModChanJoin sends a message on a mod channel.
+type ToSrvModChanMsg struct {
+	Channel string
+	Msg     string
+}
+
+// ToSrvPlayerPos tells the server that the client's PlayerPos has changed.
+type ToSrvPlayerPos struct {
+	Pos PlayerPos
+}
+
+// ToSrvGotBlks tells the server that the client has received Blks.
+type ToSrvGotBlks struct {
+	//mt:len8
+	Blks [][3]int16
+}
+
+// ToSrvDeletedBlks tells the server that the client has deleted Blks.
+type ToSrvDeletedBlks struct {
+	//mt:len8
+	Blks [][3]int16
+}
+
+// ToSrvInvAction tells the server that the client has performed an inventory action.
+type ToSrvInvAction struct {
+	//mt:raw
+	Action string
+}
+
+// ToSrvChatMsg tells the server that the client has sent a chat message.
+type ToSrvChatMsg struct {
+	//mt:utf16
+	Msg string
+}
+
+// ToSrvFallDmg tells the server that the client has taken fall damage.
+type ToSrvFallDmg struct {
+	Amount uint16
+}
+
+// ToSrvSelectItem tells the server the selected item in the client's hotbar.
+type ToSrvSelectItem struct {
+	Slot uint16
+}
+
+// ToSrvRespawn tells the server that the player has respawned.
+type ToSrvRespawn struct{}
+
+// ToSrvInteract tells the server that a node or AO has been interacted with.
+type ToSrvInteract struct {
+	Action   Interaction
+	ItemSlot uint16
+	//mt:lenhdr 32
+	Pointed PointedThing
+	//mt:end
+	Pos PlayerPos
+}
+
+type Interaction uint8
+
+const (
+	Dig Interaction = iota
+	StopDigging
+	Dug
+	Place
+	Use      // Left click snowball-like.
+	Activate // Right click air.
+)
+
+// ToSrvRemovedSounds tells the server that the client has finished playing
+// the sounds with the given IDs.
+type ToSrvRemovedSounds struct {
+	IDs []SoundID
+}
+
+type ToSrvNodeMetaFields struct {
+	Pos      [3]int16
+	Formname string
+	Fields   []Field
+}
+
+type ToSrvInvFields struct {
+	Formname string
+	Fields   []Field
+}
+
+// ToSrvReqMedia requests media files from the server.
+type ToSrvReqMedia struct {
+	Filenames []string
+}
+
+type ToSrvCltReady struct {
+	// Version information.
+	Major, Minor, Patch uint8
+	Reserved            uint8
+	Version             string
+	Formspec            uint16
+}
+
+type ToSrvFirstSRP struct {
+	Salt        []byte
+	Verifier    []byte
+	EmptyPasswd bool
+}
+
+type ToSrvSRPBytesA struct {
+	A      []byte
+	NoSHA1 bool
+}
+
+type ToSrvSRPBytesM struct {
+	M []byte
+}