func DropItem(x, y, z float64, itemType int16, data uint8) {
c := storage.GetChunkContaining(int32(x), int32(z))
defer storage.ReleaseChunkContaining(int32(x), int32(z))
ent := chunk.NewItemDrop(x, y, z, &player.InventoryItem{Type: itemType, Damage: int16(data), Count: 1})
c.SpawnEntity(chunk.Entity(ent))
var buf bytes.Buffer
ent.SpawnPacket(&buf)
SendToAllNearChunk(c.X, c.Z, protocol.BakedPacket(buf.Bytes()))
}
func EntitySpawnPacket(ent Entity) protocol.Packet {
var buf bytes.Buffer
ent.SpawnPacket(&buf)
return protocol.BakedPacket(buf.Bytes())
}
func dispatchPacket(p Player, packet protocol.Packet) {
switch pkt := packet.(type) {
case protocol.KeepAlive:
return
case protocol.LoginRequest:
if pkt.EntityID != protocol.PROTOCOL_VERSION {
p.SendPacketSync(protocol.Kick{Reason: "Your minecraft version isn't the one I expected."})
return
}
if pkt.Username != p.Username() {
p.SendPacketSync(protocol.Kick{Reason: fmt.Sprint("Your username doesn't match the one you told me earlier. (", pkt.Username, " != ", p.Username(), ")")})
return
}
req, _ := http.Get(fmt.Sprintf("http://session.minecraft.net/game/checkserver.jsp?user=%s&serverId=%x", p.Username(), p.getLoginToken()))
buf := make([]byte, 3)
req.Body.Read(buf)
if string(buf) == "YES" {
p.(*_player).authenticated = true
if OnlinePlayerCount >= config.Config.NumSlots {
p.SendPacketSync(protocol.Kick{Reason: "Server is full!"})
return
}
OnlinePlayerCount++
p.SendPacketSync(protocol.LoginRequest{
EntityID: p.ID(),
LevelType: "default",
ServerMode: protocol.Survival,
Dimension: protocol.Overworld,
Difficulty: protocol.Peaceful,
MaxPlayers: uint8(config.Config.NumSlots), // If you have more than 255 slots, I applaud you.
})
p.(*_player).stored = storage.GetPlayer(p.Username())
if p.(*_player).stored.Abilities.InstaBuild {
p.SetGameMode(protocol.Creative)
} else {
p.SetGameMode(protocol.Survival)
}
p.sendWorldData()
log.Print(p.Username(), " connected.")
if customLoginMessage(p) != "" {
SendToAll(protocol.Chat{Message: fmt.Sprintf(customLoginMessage(p), formatUsername(p))})
} else {
SendToAll(protocol.Chat{Message: fmt.Sprintf("%s connected.", formatUsername(p))})
}
var otherPlayers bytes.Buffer
for _, player := range players {
if player.Authenticated() && player != p {
player.SpawnPacket(&otherPlayers)
}
}
p.SendPacketSync(protocol.BakedPacket(otherPlayers.Bytes()))
SendToAllExcept(p, EntitySpawnPacket(p))
} else {
p.SendPacketSync(protocol.Kick{Reason: "Failed to verify username!"})
}
case protocol.Chat:
if pkt.Message[0] == '/' {
handleCommand(p, string(pkt.Message[1:]))
} else {
log.Printf("<%s> %s", p.Username(), pkt.Message)
SendToAll(protocol.Chat{Message: fmt.Sprintf("%s %s", bracketUsername(p), pkt.Message)})
}
case protocol.Handshake:
data := strings.Split(pkt.Data, ";")
p.setUsername(data[0])
p.SendPacketSync(protocol.Handshake{fmt.Sprintf("%016x", p.getLoginToken())})
case protocol.Flying:
// TODO
case protocol.PlayerPosition:
p.SendPosition(pkt.X, pkt.Y1, pkt.Z)
// TODO: validation
case protocol.PlayerLook:
p.SendAngles(pkt.Yaw, pkt.Pitch)
case protocol.PlayerPositionLook:
p.SendAngles(pkt.Yaw, pkt.Pitch)
p.SendPosition(pkt.X, pkt.Y1, pkt.Z)
// TODO: validation
case protocol.PlayerDigging:
switch pkt.Status {
case 0:
if p.(*_player).stored.Abilities.InstaBuild {
if GetBlockAt(pkt.X, int32(pkt.Y), pkt.Z) != block.Bedrock {
PlayerSetBlockAt(pkt.X, int32(pkt.Y), pkt.Z, block.Air, 0)
}
}
case 2:
blockType := GetBlockAt(pkt.X, int32(pkt.Y), pkt.Z)
if blockType != block.Bedrock {
item := blockType.ItemDrop()
if item != 0 {
DropItem(float64(pkt.X)+0.5, float64(pkt.Y)+0.5, float64(pkt.Z)+0.5, item, GetBlockDataAt(pkt.X, int32(pkt.Y), pkt.Z))
}
PlayerSetBlockAt(pkt.X, int32(pkt.Y), pkt.Z, block.Air, 0)
}
}
// TODO: validation
case protocol.Animation:
if pkt.EID == p.ID() && pkt.Animation == 1 {
SendToAllExcept(p, pkt)
}
case protocol.PlayerAbilities:
p.(*_player).stored.Abilities.Flying = p.(*_player).stored.Abilities.MayFly && pkt.Flying
case protocol.ServerListPing:
p.SendPacketSync(protocol.Kick{Reason: fmt.Sprintf("%s§%d§%d", config.Config.ServerDescription, OnlinePlayerCount, config.Config.NumSlots)})
case protocol.Kick:
log.Print(p.Username(), " disconnected.")
SendToAll(protocol.Chat{Message: fmt.Sprintf("%s disconnected.", formatUsername(p))})
default:
panic(fmt.Sprintf("%T %v", packet, packet))
}
}