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|
package playerinfo
import (
"github.com/osm/quake/common/buffer"
"github.com/osm/quake/common/context"
"github.com/osm/quake/packet/command/deltausercommand"
"github.com/osm/quake/protocol"
"github.com/osm/quake/protocol/fte"
"github.com/osm/quake/protocol/mvd"
)
const fteExtensions uint32 = fte.ExtensionHullSize |
fte.ExtensionTrans |
fte.ExtensionScale |
fte.ExtensionFatness
type Command struct {
IsMVD bool
Index byte
Default *CommandDefault
MVD *CommandMVD
}
type CommandDefault struct {
CoordSize uint8
MVDProtocolExtension uint32
FTEProtocolExtension uint32
Bits uint16
ExtraBits byte
Coord [3]float32
Frame byte
Msec byte
DeltaUserCommand *deltausercommand.Command
Velocity [3]uint16
ModelIndex byte
SkinNum byte
Effects byte
WeaponFrame byte
}
type CommandMVD struct {
CoordSize uint8
Bits uint16
Frame byte
Coord [3]float32
Angle [3]float32
ModelIndex byte
SkinNum byte
Effects byte
WeaponFrame byte
}
func (cmd *Command) Bytes() []byte {
buf := buffer.New()
buf.PutByte(protocol.SVCPlayerInfo)
buf.PutByte(cmd.Index)
if cmd.IsMVD && cmd.MVD != nil {
buf.PutBytes(cmd.MVD.Bytes())
} else if cmd.Default != nil {
buf.PutBytes(cmd.Default.Bytes())
}
return buf.Bytes()
}
func (cmd *CommandDefault) Bytes() []byte {
buf := buffer.New()
writeCoord := buf.PutCoord16
if cmd.CoordSize == 4 ||
cmd.MVDProtocolExtension&mvd.ExtensionFloatCoords != 0 ||
cmd.FTEProtocolExtension&fteExtensions != 0 {
writeCoord = buf.PutCoord32
}
buf.PutUint16(cmd.Bits)
if cmd.FTEProtocolExtension&fteExtensions != 0 && cmd.Bits&fte.UFarMore != 0 {
buf.PutByte(cmd.ExtraBits)
}
for i := 0; i < 3; i++ {
writeCoord(cmd.Coord[i])
}
buf.PutByte(cmd.Frame)
if cmd.Bits&protocol.PFMsec != 0 {
buf.PutByte(cmd.Msec)
}
if cmd.Bits&protocol.PFCommand != 0 {
buf.PutBytes(cmd.DeltaUserCommand.Bytes())
}
for i := 0; i < 3; i++ {
if cmd.Bits&(protocol.PFVelocity1<<i) != 0 {
buf.PutUint16(cmd.Velocity[i])
}
}
if cmd.Bits&protocol.PFModel != 0 {
buf.PutByte(cmd.ModelIndex)
}
if cmd.Bits&protocol.PFSkinNum != 0 {
buf.PutByte(cmd.SkinNum)
}
if cmd.Bits&protocol.PFEffects != 0 {
buf.PutByte(cmd.Effects)
}
if cmd.Bits&protocol.PFWeaponFrame != 0 {
buf.PutByte(cmd.WeaponFrame)
}
return buf.Bytes()
}
func (cmd *CommandMVD) Bytes() []byte {
buf := buffer.New()
writeCoord := buf.PutCoord16
if cmd.CoordSize == 4 {
writeCoord = buf.PutCoord32
}
buf.PutUint16(cmd.Bits)
buf.PutByte(cmd.Frame)
for i := 0; i < 3; i++ {
if cmd.Bits&(protocol.DFOrigin<<i) != 0 {
writeCoord(cmd.Coord[i])
}
}
for i := 0; i < 3; i++ {
if cmd.Bits&(protocol.DFAngles<<i) != 0 {
buf.PutAngle16(cmd.Angle[i])
}
}
if cmd.Bits&protocol.DFModel != 0 {
buf.PutByte(cmd.ModelIndex)
}
if cmd.Bits&protocol.DFSkinNum != 0 {
buf.PutByte(cmd.SkinNum)
}
if cmd.Bits&protocol.DFEffects != 0 {
buf.PutByte(cmd.Effects)
}
if cmd.Bits&protocol.DFWeaponFrame != 0 {
buf.PutByte(cmd.WeaponFrame)
}
return buf.Bytes()
}
func Parse(ctx *context.Context, buf *buffer.Buffer) (*Command, error) {
var err error
var cmd Command
cmd.IsMVD = ctx.GetIsMVD()
if cmd.Index, err = buf.ReadByte(); err != nil {
return nil, err
}
if cmd.IsMVD {
if cmd.MVD, err = parseCommandMVD(ctx, buf); err != nil {
return nil, err
}
} else {
if cmd.Default, err = parseCommandDefault(ctx, buf); err != nil {
return nil, err
}
}
return &cmd, nil
}
func parseCommandDefault(ctx *context.Context, buf *buffer.Buffer) (*CommandDefault, error) {
var err error
var cmd CommandDefault
cmd.FTEProtocolExtension = ctx.GetFTEProtocolExtension()
cmd.MVDProtocolExtension = ctx.GetMVDProtocolExtension()
cmd.CoordSize = ctx.GetCoordSize()
readCoord := buf.GetCoord16
if cmd.CoordSize == 4 ||
cmd.MVDProtocolExtension&mvd.ExtensionFloatCoords != 0 ||
cmd.FTEProtocolExtension&fteExtensions != 0 {
readCoord = buf.GetCoord32
}
if cmd.Bits, err = buf.GetUint16(); err != nil {
return nil, err
}
var bits uint32 = uint32(cmd.Bits)
if cmd.FTEProtocolExtension&fteExtensions != 0 && bits&fte.UFarMore != 0 {
if cmd.ExtraBits, err = buf.ReadByte(); err != nil {
return nil, err
}
bits = (uint32(cmd.ExtraBits) << 16) | uint32(cmd.Bits)
}
for i := 0; i < 3; i++ {
if cmd.Coord[i], err = readCoord(); err != nil {
return nil, err
}
}
if cmd.Frame, err = buf.ReadByte(); err != nil {
return nil, err
}
if bits&protocol.PFMsec != 0 {
if cmd.Msec, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if bits&protocol.PFCommand != 0 {
if cmd.DeltaUserCommand, err = deltausercommand.Parse(ctx, buf); err != nil {
return nil, err
}
}
for i := 0; i < 3; i++ {
if bits&(protocol.PFVelocity1<<i) != 0 {
if cmd.Velocity[i], err = buf.GetUint16(); err != nil {
return nil, err
}
}
}
if bits&protocol.PFModel != 0 {
if cmd.ModelIndex, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if bits&protocol.PFSkinNum != 0 {
if cmd.SkinNum, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if bits&protocol.PFEffects != 0 {
if cmd.Effects, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if bits&protocol.PFWeaponFrame != 0 {
if cmd.WeaponFrame, err = buf.ReadByte(); err != nil {
return nil, err
}
}
return &cmd, nil
}
func parseCommandMVD(ctx *context.Context, buf *buffer.Buffer) (*CommandMVD, error) {
var err error
var cmd CommandMVD
cmd.CoordSize = ctx.GetCoordSize()
readCoord := buf.GetCoord16
if cmd.CoordSize == 4 {
readCoord = buf.GetCoord32
}
if cmd.Bits, err = buf.GetUint16(); err != nil {
return nil, err
}
if cmd.Frame, err = buf.ReadByte(); err != nil {
return nil, err
}
for i := 0; i < 3; i++ {
if cmd.Bits&(protocol.DFOrigin<<i) != 0 {
if cmd.Coord[i], err = readCoord(); err != nil {
return nil, err
}
}
}
for i := 0; i < 3; i++ {
if cmd.Bits&(protocol.DFAngles<<i) != 0 {
if cmd.Angle[i], err = buf.GetAngle16(); err != nil {
return nil, err
}
}
}
if cmd.Bits&protocol.DFModel != 0 {
if cmd.ModelIndex, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.DFSkinNum != 0 {
if cmd.SkinNum, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.DFEffects != 0 {
if cmd.Effects, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.DFWeaponFrame != 0 {
if cmd.WeaponFrame, err = buf.ReadByte(); err != nil {
return nil, err
}
}
return &cmd, nil
}
|
