169 lines
4.8 KiB
Go
169 lines
4.8 KiB
Go
package worlds
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import (
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"github.com/bedrock-tool/bedrocktool/locale"
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"github.com/df-mc/dragonfly/server/block/cube"
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"github.com/df-mc/dragonfly/server/world"
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"github.com/df-mc/dragonfly/server/world/chunk"
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"github.com/repeale/fp-go"
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"github.com/sandertv/gophertunnel/minecraft/protocol"
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"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
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"github.com/sirupsen/logrus"
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)
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func (w *worldsHandler) processChangeDimension(pk *packet.ChangeDimension) {
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w.SaveAndReset()
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dimensionID := pk.Dimension
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if w.serverState.ispre118 && dimensionID == 0 {
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dimensionID += 10
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}
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w.worldState.dimension, _ = world.DimensionByID(int(dimensionID))
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}
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func (w *worldsHandler) processLevelChunk(pk *packet.LevelChunk) {
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// ignore empty chunks THANKS WEIRD SERVER SOFTWARE DEVS
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if len(pk.RawPayload) == 0 {
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logrus.Info(locale.Loc("empty_chunk", nil))
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return
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}
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var subChunkCount int
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switch pk.SubChunkCount {
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case protocol.SubChunkRequestModeLimited:
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fallthrough
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case protocol.SubChunkRequestModeLimitless:
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subChunkCount = 0
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default:
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subChunkCount = int(pk.SubChunkCount)
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}
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ch, blockNBTs, err := chunk.NetworkDecode(world.AirRID(), pk.RawPayload, subChunkCount, w.worldState.dimension.Range(), w.serverState.ispre118, w.bp.HasBlocks())
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if err != nil {
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logrus.Error(err)
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return
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}
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for _, blockNBT := range blockNBTs {
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x := int(blockNBT["x"].(int32))
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y := int(blockNBT["y"].(int32))
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z := int(blockNBT["z"].(int32))
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w.worldState.blockNBTs[cube.Pos{x, y, z}] = blockNBT
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}
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w.worldState.chunks[(world.ChunkPos)(pk.Position)] = ch
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max := w.worldState.dimension.Range().Height() / 16
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switch pk.SubChunkCount {
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case protocol.SubChunkRequestModeLimited:
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max = int(pk.HighestSubChunk)
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fallthrough
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case protocol.SubChunkRequestModeLimitless:
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var offsetTable []protocol.SubChunkOffset
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r := w.worldState.dimension.Range()
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for y := int8(r.Min() / 16); y < int8(r.Max()); y++ {
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offsetTable = append(offsetTable, protocol.SubChunkOffset{0, y, 0})
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}
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dimId, _ := world.DimensionID(w.worldState.dimension)
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w.proxy.Server.WritePacket(&packet.SubChunkRequest{
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Dimension: int32(dimId),
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Position: protocol.SubChunkPos{
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pk.Position.X(), 0, pk.Position.Z(),
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},
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Offsets: offsetTable[:max],
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})
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default:
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// legacy
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empty := fp.Every(func(sub *chunk.SubChunk) bool {
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return sub.Empty()
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})(ch.Sub())
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if !empty {
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w.mapUI.SetChunk((world.ChunkPos)(pk.Position), ch, true)
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}
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}
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}
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func (w *worldsHandler) processSubChunk(pk *packet.SubChunk) {
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posToRedraw := make(map[world.ChunkPos]bool)
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for _, sub := range pk.SubChunkEntries {
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var (
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absX = pk.Position[0] + int32(sub.Offset[0])
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absY = pk.Position[1] + int32(sub.Offset[1])
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absZ = pk.Position[2] + int32(sub.Offset[2])
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pos = world.ChunkPos{absX, absZ}
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)
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ch, ok := w.worldState.chunks[pos]
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if !ok {
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logrus.Error(locale.Loc("subchunk_before_chunk", nil))
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continue
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}
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blockNBTs, err := ch.ApplySubChunkEntry(uint8(absY), &sub)
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if err != nil {
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logrus.Error(err)
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}
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for _, blockNBT := range blockNBTs {
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x := int(blockNBT["x"].(int32))
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y := int(blockNBT["y"].(int32))
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z := int(blockNBT["z"].(int32))
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w.worldState.blockNBTs[cube.Pos{x, y, z}] = blockNBT
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}
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posToRedraw[pos] = true
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}
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// redraw the chunks
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for pos := range posToRedraw {
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w.mapUI.SetChunk(pos, w.worldState.chunks[pos], true)
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}
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w.mapUI.SchedRedraw()
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}
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func blockPosInChunk(pos protocol.BlockPos) (uint8, int16, uint8) {
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return uint8(pos.X() & 0x0f), int16(pos.Y() & 0x0f), uint8(pos.Z() & 0x0f)
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}
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func (w *worldsHandler) ProcessChunkPackets(pk packet.Packet) packet.Packet {
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switch pk := pk.(type) {
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case *packet.ChangeDimension:
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w.processChangeDimension(pk)
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case *packet.LevelChunk:
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w.processLevelChunk(pk)
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w.proxy.SendPopup(locale.Locm("popup_chunk_count", locale.Strmap{
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"Count": len(w.worldState.chunks),
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"Name": w.worldState.Name,
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}, len(w.worldState.chunks)))
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case *packet.SubChunk:
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w.processSubChunk(pk)
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case *packet.BlockActorData:
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p := pk.Position
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w.worldState.blockNBTs[cube.Pos{int(p.X()), int(p.Y()), int(p.Z())}] = pk.NBTData
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case *packet.UpdateBlock:
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if w.settings.BlockUpdates {
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cp := world.ChunkPos{pk.Position.X() >> 4, pk.Position.Z() >> 4}
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c, ok := w.worldState.chunks[cp]
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if ok {
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x, y, z := blockPosInChunk(pk.Position)
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c.SetBlock(x, y, z, uint8(pk.Layer), pk.NewBlockRuntimeID)
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w.mapUI.SetChunk(cp, c, true)
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}
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}
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case *packet.UpdateSubChunkBlocks:
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if w.settings.BlockUpdates {
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cp := world.ChunkPos{pk.Position.X(), pk.Position.Z()}
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c, ok := w.worldState.chunks[cp]
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if ok {
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for _, bce := range pk.Blocks {
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x, y, z := blockPosInChunk(bce.BlockPos)
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if bce.SyncedUpdateType == packet.BlockToEntityTransition {
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c.SetBlock(x, y, z, 0, world.AirRID())
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} else {
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c.SetBlock(x, y, z, 0, bce.BlockRuntimeID)
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}
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}
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w.mapUI.SetChunk(cp, c, true)
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}
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}
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}
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return pk
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}
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