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unknown 2023-06-25 03:33:17 -05:00
parent f0b9bc6ed6
commit f6ab7a9b5d
8 changed files with 158 additions and 34 deletions
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44
core/entity/chunk.go
View File

@ -3,43 +3,27 @@ package entity
import (
"log"
"sync"
"github.com/CPunch/gopenfusion/config"
)
type ChunkPosition struct {
X int
Y int
}
func makeChunkPosition(x, y int) ChunkPosition {
return ChunkPosition{
X: x / (config.VIEW_DISTANCE / 3),
Y: y / (config.VIEW_DISTANCE / 3),
}
}
type Chunk struct {
Position ChunkPosition
entities map[Entity]struct{}
Entities map[Entity]struct{}
lock sync.Mutex
}
func NewChunk(position ChunkPosition) *Chunk {
return &Chunk{
Position: position,
entities: make(map[Entity]struct{}),
Entities: make(map[Entity]struct{}),
}
}
func (c *Chunk) AddEntity(entity Entity) {
entity.SetChunk(c)
c.entities[entity] = struct{}{}
c.Entities[entity] = struct{}{}
}
func (c *Chunk) RemoveEntity(entity Entity) {
entity.SetChunk(nil)
delete(c.entities, entity)
delete(c.Entities, entity)
}
// send packet to all peers in this chunk and kill each peer if error
@ -47,7 +31,7 @@ func (c *Chunk) SendPacket(typeID uint32, pkt ...interface{}) {
c.lock.Lock()
defer c.lock.Unlock()
for entity := range c.entities {
for entity := range c.Entities {
if entity.GetKind() != ENTITY_KIND_PLAYER {
continue
}
@ -59,6 +43,7 @@ func (c *Chunk) SendPacket(typeID uint32, pkt ...interface{}) {
peer := plr.Peer
if err := peer.Send(typeID, pkt...); err != nil {
log.Printf("Error sending packet to peer %p: %v", peer, err)
peer.Kill()
}
}
@ -77,3 +62,20 @@ func (c *Chunk) GetAdjacentPositions() []ChunkPosition {
{c.Position.X + 1, c.Position.Y + 1},
}
}
// https://stackoverflow.com/a/45428032 lol
func ChunkSliceDifference(a, b []*Chunk) []*Chunk {
m := make(map[*Chunk]struct{})
for _, item := range b {
m[item] = struct{}{}
}
var diff []*Chunk
for _, item := range a {
if _, ok := m[item]; !ok {
diff = append(diff, item)
}
}
return diff
}

15
core/entity/chunkposition.go Normal file
View File

@ -0,0 +1,15 @@
package entity
import "github.com/CPunch/gopenfusion/config"
type ChunkPosition struct {
X int
Y int
}
func MakeChunkPosition(x, y int) ChunkPosition {
return ChunkPosition{
X: x / (config.VIEW_DISTANCE / 3),
Y: y / (config.VIEW_DISTANCE / 3),
}
}

9
core/entity/entity.go
View File

@ -1,5 +1,7 @@
package entity
import "github.com/CPunch/gopenfusion/core/protocol"
type EntityKind int
const (
@ -10,11 +12,14 @@ const (
type Entity interface {
GetKind() EntityKind
GetChunk() *Chunk
GetChunk() ChunkPosition
GetPosition() (x int, y int, z int)
GetAngle() int
SetChunk(chunk *Chunk)
SetChunk(chunk ChunkPosition)
SetPosition(x, y, z int)
SetAngle(angle int)
DisappearFromViewOf(peer *protocol.CNPeer)
EnterIntoViewOf(peer *protocol.CNPeer)
}

39
core/entity/player.go
View File

@ -7,7 +7,7 @@ import (
type Player struct {
Peer *protocol.CNPeer
CurrentChunk *Chunk
Chunk ChunkPosition
PlayerID int
AccountID int
AccountLevel int
@ -35,6 +35,7 @@ type Player struct {
ActiveNanoSlotNum int
Fatigue int
CurrentMissionID int
IPCState int8
}
// ==================== Entity interface ====================
@ -43,8 +44,8 @@ func (plr *Player) GetKind() EntityKind {
return ENTITY_KIND_PLAYER
}
func (plr *Player) GetChunk() *Chunk {
return plr.CurrentChunk
func (plr *Player) GetChunk() ChunkPosition {
return plr.Chunk
}
func (plr *Player) GetPosition() (x int, y int, z int) {
@ -55,6 +56,10 @@ func (plr *Player) GetAngle() int {
return plr.Angle
}
func (plr *Player) SetChunk(chunk ChunkPosition) {
plr.Chunk = chunk
}
func (plr *Player) SetPosition(x, y, z int) {
plr.X = x
plr.Y = y
@ -65,8 +70,16 @@ func (plr *Player) SetAngle(angle int) {
plr.Angle = angle
}
func (plr *Player) SetChunk(chunk *Chunk) {
plr.CurrentChunk = chunk
func (plr *Player) DisappearFromViewOf(peer *protocol.CNPeer) {
peer.Send(protocol.P_FE2CL_PC_EXIT, protocol.SP_FE2CL_PC_EXIT{
IID: int32(plr.PlayerID),
})
}
func (plr *Player) EnterIntoViewOf(peer *protocol.CNPeer) {
peer.Send(protocol.P_FE2CL_PC_NEW, protocol.SP_FE2CL_PC_NEW{
PCAppearanceData: plr.GetAppearanceData(),
})
}
func (plr *Player) ToPCLoadData2CL() protocol.SPCLoadData2CL {
@ -96,3 +109,19 @@ func (plr *Player) ToPCLoadData2CL() protocol.SPCLoadData2CL {
IFatigue: 50,
}
}
func (plr *Player) GetAppearanceData() protocol.SPCAppearanceData {
return protocol.SPCAppearanceData{
IID: int32(plr.PlayerID),
IHP: int32(plr.HP),
ILv: int16(plr.Level),
IX: int32(plr.X),
IY: int32(plr.Y),
IZ: int32(plr.Z),
IAngle: int32(plr.Angle),
PCStyle: plr.PCStyle,
IPCState: plr.IPCState,
ItemEquip: plr.Equip,
Nano: protocol.SNano{}, //plr.Nanos[plr.ActiveNanoSlotNum],
}
}

65
shard/chunks.go
View File

@ -1,6 +1,8 @@
package shard
import "github.com/CPunch/gopenfusion/core/entity"
import (
"github.com/CPunch/gopenfusion/core/entity"
)
func (server *ShardServer) getChunk(pos entity.ChunkPosition) *entity.Chunk {
chunk, ok := server.chunks[pos]
@ -12,12 +14,67 @@ func (server *ShardServer) getChunk(pos entity.ChunkPosition) *entity.Chunk {
return chunk
}
func (server *ShardServer) getViewableChunks(plr *entity.Player) []*entity.Chunk {
func (server *ShardServer) getViewableChunks(pos entity.ChunkPosition) []*entity.Chunk {
chunks := make([]*entity.Chunk, 0, 9)
for _, pos := range plr.GetChunk().GetAdjacentPositions() {
for _, pos := range server.getChunk(pos).GetAdjacentPositions() {
chunks = append(chunks, server.getChunk(pos))
}
return chunks
}
func (server *ShardServer) sendPacketToViewableChunks(plr *entity.Player, typeID uint32, pkt ...interface{}) error {
for _, chunk := range server.getViewableChunks(plr.Chunk) {
chunk.SendPacket(typeID, pkt...)
}
return nil
}
func (server *ShardServer) removeEntityFromChunks(chunks []*entity.Chunk, this entity.Entity) {
for _, chunk := range chunks {
for e, _ := range chunk.Entities {
if e.GetKind() == entity.ENTITY_KIND_PLAYER {
otherPlr := e.(*entity.Player)
this.DisappearFromViewOf(otherPlr.Peer)
}
if this.GetKind() == entity.ENTITY_KIND_PLAYER {
thisPlr := this.(*entity.Player)
e.DisappearFromViewOf(thisPlr.Peer)
}
}
}
}
func (server *ShardServer) addEntityToChunks(chunks []*entity.Chunk, this entity.Entity) {
for _, chunk := range chunks {
for e, _ := range chunk.Entities {
if e.GetKind() == entity.ENTITY_KIND_PLAYER {
otherPlr := e.(*entity.Player)
this.EnterIntoViewOf(otherPlr.Peer)
}
if this.GetKind() == entity.ENTITY_KIND_PLAYER {
thisPlr := this.(*entity.Player)
e.EnterIntoViewOf(thisPlr.Peer)
}
}
}
}
func (server *ShardServer) updateEntityChunk(e entity.Entity, from entity.ChunkPosition, to entity.ChunkPosition) {
oldViewables := server.getViewableChunks(from)
newViewables := server.getViewableChunks(to)
// compute differences
toExit := entity.ChunkSliceDifference(oldViewables, newViewables)
toEnter := entity.ChunkSliceDifference(newViewables, oldViewables)
// update chunks
server.removeEntityFromChunks(toExit, e)
server.addEntityToChunks(toEnter, e)
server.getChunk(from).RemoveEntity(e)
server.getChunk(to).AddEntity(e)
e.SetChunk(to)
}

5
shard/join.go
View File

@ -22,9 +22,10 @@ func (server *ShardServer) attachPlayer(peer *protocol.CNPeer, meta redis.LoginM
if err != nil {
return nil, err
}
plr.Peer = peer
server.setPlayer(peer, plr)
return plr, err
return plr, nil
}
func (server *ShardServer) RequestEnter(peer *protocol.CNPeer, pkt protocol.Packet) error {
@ -57,6 +58,8 @@ func (server *ShardServer) RequestEnter(peer *protocol.CNPeer, pkt protocol.Pack
peer.SetActiveKey(protocol.USE_FE)
log.Printf("Player %d (AccountID %d) entered\n", resp.IID, loginData.AccountID)
server.updatePlayerPosition(peer, int(plr.X), int(plr.Y), int(plr.Z), int(plr.Angle))
return peer.Send(protocol.P_FE2CL_REP_PC_ENTER_SUCC, resp)
}

7
shard/movement.go
View File

@ -1,6 +1,7 @@
package shard
import (
"github.com/CPunch/gopenfusion/core/entity"
"github.com/CPunch/gopenfusion/core/protocol"
)
@ -9,12 +10,16 @@ func (server *ShardServer) updatePlayerPosition(peer *protocol.CNPeer, X, Y, Z,
if err != nil {
return err
}
newPos := entity.MakeChunkPosition(X, Y)
oldPos := plr.Chunk
plr.X = X
plr.Y = Y
plr.Z = Z
plr.Angle = Angle
if newPos != oldPos {
server.updateEntityChunk(plr, oldPos, newPos)
}
return nil
}

8
shard/shardServer.go
View File

@ -115,6 +115,14 @@ func (server *ShardServer) disconnect(peer *protocol.CNPeer) {
server.peerLock.Lock()
defer server.peerLock.Unlock()
// remove from chunk(s)
plr, ok := server.peers[peer]
if ok {
log.Printf("Player %d (AccountID %d) disconnected\n", plr.PlayerID, plr.AccountID)
server.removeEntityFromChunks(server.getViewableChunks(plr.Chunk), plr)
server.getChunk(plr.Chunk).RemoveEntity(plr)
}
log.Printf("Peer %p disconnected from SHARD\n", peer)
delete(server.peers, peer)
}