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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright (C)
* Copyright (C)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "MovementPacketBuilder.h"
#include "MoveSpline.h"
#include "ByteBuffer.h"
namespace Movement
{
inline void operator << (ByteBuffer& b, const Vector3& v)
{
b << v.x << v.y << v.z;
}
inline void operator >> (ByteBuffer& b, Vector3& v)
{
b >> v.x >> v.y >> v.z;
}
enum MonsterMoveType
{
MonsterMoveNormal = 0,
MonsterMoveStop = 1,
MonsterMoveFacingSpot = 2,
MonsterMoveFacingTarget = 3,
MonsterMoveFacingAngle = 4
};
void PacketBuilder::WriteCommonMonsterMovePart(const MoveSpline& move_spline, ByteBuffer& data)
{
MoveSplineFlag splineflags = move_spline.splineflags;
data << uint8(0); // sets/unsets MOVEMENTFLAG2_UNK7 (0x40)
data << move_spline.spline.getPoint(move_spline.spline.first(), true);
data << move_spline.GetId();
switch (splineflags & MoveSplineFlag::Mask_Final_Facing)
{
case MoveSplineFlag::Final_Target:
data << uint8(MonsterMoveFacingTarget);
data << move_spline.facing.target;
break;
case MoveSplineFlag::Final_Angle:
data << uint8(MonsterMoveFacingAngle);
data << move_spline.facing.angle;
break;
case MoveSplineFlag::Final_Point:
data << uint8(MonsterMoveFacingSpot);
data << move_spline.facing.f.x << move_spline.facing.f.y << move_spline.facing.f.z;
break;
default:
data << uint8(MonsterMoveNormal);
break;
}
// add fake Enter_Cycle flag - needed for client-side cyclic movement (client will erase first spline vertex after first cycle done)
// Xinef: this flag breaks cycle for ground movement, client teleports npc between last and first point instead of using smooth movement
if (splineflags & MoveSplineFlag::Flying)
splineflags.enter_cycle = move_spline.isCyclic();
data << uint32(splineflags & uint32(~MoveSplineFlag::Mask_No_Monster_Move));
if (splineflags.animation)
{
data << splineflags.getAnimationId();
data << move_spline.effect_start_time;
}
data << move_spline.Duration();
if (splineflags.parabolic)
{
data << move_spline.vertical_acceleration;
data << move_spline.effect_start_time;
}
}
void PacketBuilder::WriteStopMovement(Vector3 const& pos, uint32 splineId, ByteBuffer& data)
{
data << uint8(0); // sets/unsets MOVEMENTFLAG2_UNK7 (0x40)
data << pos;
data << splineId;
data << uint8(MonsterMoveStop);
}
void WriteLinearPath(const Spline<int32>& spline, ByteBuffer& data)
{
uint32 last_idx = spline.getPointCount() - 3;
const Vector3 * real_path = &spline.getPoint(1, true);
data << last_idx;
data << real_path[last_idx]; // destination
if (last_idx > 1)
{
Vector3 middle = (real_path[0] + real_path[last_idx]) / 2.f;
Vector3 offset;
// first and last points already appended
for (uint32 i = 1; i < last_idx; ++i)
{
offset = middle - real_path[i];
data.appendPackXYZ(offset.x, offset.y, offset.z);
}
}
}
void WriteCatmullRomPath(const Spline<int32>& spline, ByteBuffer& data)
{
uint32 count = spline.getPointCount() - 3;
data << count;
data.append<Vector3>(&spline.getPoint(2, true), count);
}
void WriteCatmullRomCyclicPath(const Spline<int32>& spline, ByteBuffer& data, bool flying)
{
uint32 count = spline.getPointCount() - 3;
data << uint32(count+1);
if (flying)
{
data << spline.getPoint(1, true); // fake point, client will erase it from the spline after first cycle done
data.append<Vector3>(&spline.getPoint(2, true), count);
}
else
{
data.append<Vector3>(&spline.getPoint(2, true), count);
data << Vector3::zero(); //Xinef: fake point
}
}
void PacketBuilder::WriteMonsterMove(const MoveSpline& move_spline, ByteBuffer& data)
{
WriteCommonMonsterMovePart(move_spline, data);
const Spline<int32>& spline = move_spline.spline;
MoveSplineFlag splineflags = move_spline.splineflags;
if (splineflags & MoveSplineFlag::Mask_CatmullRom)
{
if (splineflags.cyclic)
WriteCatmullRomCyclicPath(spline, data, splineflags & MoveSplineFlag::Flying);
else
WriteCatmullRomPath(spline, data);
}
else
WriteLinearPath(spline, data);
}
void PacketBuilder::WriteCreate(const MoveSpline& move_spline, ByteBuffer& data)
{
//WriteClientStatus(mov, data);
//data.append<float>(&mov.m_float_values[SpeedWalk], SpeedMaxCount);
//if (mov.SplineEnabled())
{
MoveSplineFlag const& splineFlags = move_spline.splineflags;
data << splineFlags.raw();
if (splineFlags.final_angle)
{
data << move_spline.facing.angle;
}
else if (splineFlags.final_target)
{
data << move_spline.facing.target;
}
else if (splineFlags.final_point)
{
data << move_spline.facing.f.x << move_spline.facing.f.y << move_spline.facing.f.z;
}
data << move_spline.timePassed();
data << move_spline.Duration();
data << move_spline.GetId();
data << float(1.f); // splineInfo.duration_mod; added in 3.1
data << float(1.f); // splineInfo.duration_mod_next; added in 3.1
data << move_spline.vertical_acceleration; // added in 3.1
data << move_spline.effect_start_time; // added in 3.1
uint32 nodes = move_spline.getPath(true).size();
data << nodes;
data.append<Vector3>(&move_spline.getPath(true)[0], nodes);
data << uint8(move_spline.spline.mode()); // added in 3.1
data << (move_spline.isCyclic() ? Vector3::zero() : move_spline.FinalDestination());
}
}
}
|
