1 files changed, 142 insertions, 0 deletions
diff --git a/packet/command/sound/sound.go b/packet/command/sound/sound.go
new file mode 100644
index 0000000..09c0149
--- /dev/null
+++ b/packet/command/sound/sound.go
@@ -0,0 +1,142 @@
+package sound
+
+import (
+	"github.com/osm/quake/common/buffer"
+	"github.com/osm/quake/common/context"
+	"github.com/osm/quake/protocol"
+)
+
+type Command struct {
+	CoordSize uint8
+	IsNQ      bool
+
+	Bits        byte
+	SoundIndex  byte
+	Channel     uint16
+	Volume      byte
+	Attenuation byte
+	SoundNum    byte
+	Coord       [3]float32
+}
+
+func (cmd *Command) Bytes() []byte {
+	buf := buffer.New()
+
+	buf.PutByte(protocol.SVCSound)
+
+	if cmd.IsNQ {
+		buf.PutByte(cmd.Bits)
+
+		if cmd.Bits&protocol.NQSoundVolume != 0 {
+			buf.PutByte(cmd.Volume)
+		}
+
+		if cmd.Bits&protocol.NQSoundAttenuation != 0 {
+			buf.PutByte(cmd.Attenuation)
+		}
+
+		buf.PutUint16(cmd.Channel)
+		buf.PutByte(cmd.SoundIndex)
+
+		for i := 0; i < 3; i++ {
+			buf.PutCoord16(cmd.Coord[i])
+		}
+	} else {
+		writeCoord := buf.PutCoord16
+		if cmd.CoordSize == 4 {
+			writeCoord = buf.PutCoord32
+		}
+
+		buf.PutUint16(cmd.Channel)
+
+		if cmd.Channel&protocol.SoundVolume != 0 {
+			buf.PutByte(cmd.Volume)
+		}
+
+		if cmd.Channel&protocol.SoundAttenuation != 0 {
+			buf.PutByte(cmd.Attenuation)
+		}
+
+		buf.PutByte(cmd.SoundNum)
+
+		for i := 0; i < 3; i++ {
+			writeCoord(cmd.Coord[i])
+		}
+	}
+
+	return buf.Bytes()
+}
+
+func Parse(ctx *context.Context, buf *buffer.Buffer) (*Command, error) {
+	var err error
+	var cmd Command
+
+	cmd.IsNQ = ctx.GetIsNQ()
+
+	if cmd.IsNQ {
+		if cmd.Bits, err = buf.ReadByte(); err != nil {
+			return nil, err
+		}
+
+		if cmd.Bits&protocol.NQSoundVolume != 0 {
+			if cmd.Volume, err = buf.ReadByte(); err != nil {
+				return nil, err
+			}
+		}
+
+		if cmd.Bits&protocol.NQSoundAttenuation != 0 {
+			if cmd.Attenuation, err = buf.ReadByte(); err != nil {
+				return nil, err
+			}
+		}
+
+		if cmd.Channel, err = buf.GetUint16(); err != nil {
+			return nil, err
+		}
+
+		if cmd.SoundIndex, err = buf.ReadByte(); err != nil {
+			return nil, err
+		}
+
+		for i := 0; i < 3; i++ {
+			if cmd.Coord[i], err = buf.GetCoord16(); err != nil {
+				return nil, err
+			}
+		}
+
+	} else {
+		cmd.CoordSize = ctx.GetCoordSize()
+		readCoord := buf.GetCoord16
+		if cmd.CoordSize == 4 {
+			readCoord = buf.GetCoord32
+		}
+
+		if cmd.Channel, err = buf.GetUint16(); err != nil {
+			return nil, err
+		}
+
+		if cmd.Channel&protocol.SoundVolume != 0 {
+			if cmd.Volume, err = buf.ReadByte(); err != nil {
+				return nil, err
+			}
+		}
+
+		if cmd.Channel&protocol.SoundAttenuation != 0 {
+			if cmd.Attenuation, err = buf.ReadByte(); err != nil {
+				return nil, err
+			}
+		}
+
+		if cmd.SoundNum, err = buf.ReadByte(); err != nil {
+			return nil, err
+		}
+
+		for i := 0; i < 3; i++ {
+			if cmd.Coord[i], err = readCoord(); err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	return &cmd, nil
+}