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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
package deltausercommand
import (
"github.com/osm/quake/common/buffer"
"github.com/osm/quake/common/context"
"github.com/osm/quake/protocol"
)
type Command struct {
ProtocolVersion uint32
Bits byte
CMAngle1 float32
CMAngle2 float32
CMAngle3 float32
CMForward8 byte
CMForward16 uint16
CMSide8 byte
CMSide16 uint16
CMUp8 byte
CMUp16 uint16
CMButtons byte
CMImpulse byte
CMMsec byte
}
func (cmd *Command) Bytes() []byte {
buf := buffer.New()
buf.PutByte(cmd.Bits)
if cmd.Bits&protocol.CMAngle1 != 0 {
buf.PutAngle16(cmd.CMAngle1)
}
if cmd.Bits&protocol.CMAngle2 != 0 {
buf.PutAngle16(cmd.CMAngle2)
}
if cmd.Bits&protocol.CMAngle3 != 0 {
buf.PutAngle16(cmd.CMAngle3)
}
if cmd.ProtocolVersion <= 26 {
if cmd.Bits&protocol.CMForward != 0 {
buf.PutByte(cmd.CMForward8)
}
if cmd.Bits&protocol.CMSide != 0 {
buf.PutByte(cmd.CMSide8)
}
if cmd.Bits&protocol.CMUp != 0 {
buf.PutByte(cmd.CMUp8)
}
} else {
if cmd.Bits&protocol.CMForward != 0 {
buf.PutUint16(cmd.CMForward16)
}
if cmd.Bits&protocol.CMSide != 0 {
buf.PutUint16(cmd.CMSide16)
}
if cmd.Bits&protocol.CMUp != 0 {
buf.PutUint16(cmd.CMUp16)
}
}
if cmd.Bits&protocol.CMButtons != 0 {
buf.PutByte(cmd.CMButtons)
}
if cmd.Bits&protocol.CMImpulse != 0 {
buf.PutByte(cmd.CMImpulse)
}
if cmd.ProtocolVersion <= 26 && cmd.Bits&protocol.CMMsec != 0 {
buf.PutByte(cmd.CMMsec)
} else if cmd.ProtocolVersion >= 27 {
buf.PutByte(cmd.CMMsec)
}
return buf.Bytes()
}
func Parse(ctx *context.Context, buf *buffer.Buffer) (*Command, error) {
var err error
var cmd Command
cmd.ProtocolVersion = ctx.GetProtocolVersion()
if cmd.Bits, err = buf.ReadByte(); err != nil {
return nil, err
}
if cmd.Bits&protocol.CMAngle1 != 0 {
if cmd.CMAngle1, err = buf.GetAngle16(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMAngle2 != 0 {
if cmd.CMAngle2, err = buf.GetAngle16(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMAngle3 != 0 {
if cmd.CMAngle3, err = buf.GetAngle16(); err != nil {
return nil, err
}
}
if cmd.ProtocolVersion <= 26 {
if cmd.Bits&protocol.CMForward != 0 {
if cmd.CMForward8, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMSide != 0 {
if cmd.CMSide8, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMUp != 0 {
if cmd.CMUp8, err = buf.ReadByte(); err != nil {
return nil, err
}
}
} else {
if cmd.Bits&protocol.CMForward != 0 {
if cmd.CMForward16, err = buf.GetUint16(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMSide != 0 {
if cmd.CMSide16, err = buf.GetUint16(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMUp != 0 {
if cmd.CMUp16, err = buf.GetUint16(); err != nil {
return nil, err
}
}
}
if cmd.Bits&protocol.CMButtons != 0 {
if cmd.CMButtons, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.Bits&protocol.CMImpulse != 0 {
if cmd.CMImpulse, err = buf.ReadByte(); err != nil {
return nil, err
}
}
if cmd.ProtocolVersion <= 26 && cmd.Bits&protocol.CMMsec != 0 {
if cmd.CMMsec, err = buf.ReadByte(); err != nil {
return nil, err
}
} else if cmd.ProtocolVersion >= 27 {
if cmd.CMMsec, err = buf.ReadByte(); err != nil {
return nil, err
}
}
return &cmd, nil
}
|
