1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
package qwd
import (
"github.com/osm/quake/common/buffer"
"github.com/osm/quake/common/context"
)
type Cmd struct {
Msec byte
UserAngle [3]float32
Forward uint16
Side uint16
Up uint16
Buttons byte
Impulse byte
Padding [3]byte
Angle [3]float32
}
func (cmd *Cmd) Bytes() []byte {
buf := buffer.New()
buf.PutByte(cmd.Msec)
for i := 0; i < 3; i++ {
buf.PutFloat32(cmd.UserAngle[i])
}
buf.PutUint16(cmd.Forward)
buf.PutUint16(cmd.Side)
buf.PutUint16(cmd.Up)
for i := 0; i < 3; i++ {
buf.PutByte(cmd.Padding[i])
}
buf.PutByte(cmd.Buttons)
buf.PutByte(cmd.Impulse)
for i := 0; i < 3; i++ {
buf.PutFloat32(cmd.Angle[i])
}
return buf.Bytes()
}
func parseCmd(ctx *context.Context, buf *buffer.Buffer) (*Cmd, error) {
var err error
var cmd Cmd
if cmd.Msec, err = buf.ReadByte(); err != nil {
return nil, err
}
for i := 0; i < 3; i++ {
if cmd.UserAngle[i], err = buf.GetFloat32(); err != nil {
return nil, err
}
}
if cmd.Forward, err = buf.GetUint16(); err != nil {
return nil, err
}
if cmd.Side, err = buf.GetUint16(); err != nil {
return nil, err
}
if cmd.Up, err = buf.GetUint16(); err != nil {
return nil, err
}
for i := 0; i < 3; i++ {
if cmd.Padding[i], err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Buttons, err = buf.ReadByte(); err != nil {
return nil, err
}
if cmd.Impulse, err = buf.ReadByte(); err != nil {
return nil, err
}
for i := 0; i < 3; i++ {
if cmd.Angle[i], err = buf.GetFloat32(); err != nil {
return nil, err
}
}
return &cmd, nil
}
|