aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/ScriptEngine/Common/ScriptEngineBase/AsyncCommandPlugins/SensorRepeat.cs
blob: aaea2eeeafcb125d0b8edc9164d02cc3ecf0caf8 (plain)
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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSim Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
//#define SPAM
using System;
using System.Collections.Generic;
using libsecondlife;
using OpenSim.Framework;
using OpenSim.Region.Environment.Scenes;

namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase.AsyncCommandPlugins
{
    public class SensorRepeat
    {
        public AsyncCommandManager m_CmdManager;

        public SensorRepeat(AsyncCommandManager CmdManager)
        {
            m_CmdManager = CmdManager;
        }

        public Dictionary<uint, Dictionary<LLUUID, LSL_Types.list>> SenseEvents =
            new Dictionary<uint, Dictionary<LLUUID, LSL_Types.list>>();
        private Object SenseLock = new Object();

        //
        // SenseRepeater and Sensors
        //
        private class SenseRepeatClass
        {
            public uint localID;
            public LLUUID itemID;
            public double interval;
            public DateTime next;

            public string name;
            public LLUUID keyID;
            public int type;
            public double range;
            public double arc;
            public SceneObjectPart host;
        }

        private List<SenseRepeatClass> SenseRepeaters = new List<SenseRepeatClass>();
        private object SenseRepeatListLock = new object();

        public void SetSenseRepeatEvent(uint m_localID, LLUUID m_itemID,
            string name, LLUUID keyID, int type, double range, double arc, double sec, SceneObjectPart host)
        {
            #if SPAM
            Console.WriteLine("SetSensorEvent");
            #endif
            // Always remove first, in case this is a re-set
            UnSetSenseRepeaterEvents(m_localID, m_itemID);
            if (sec == 0) // Disabling timer
                return;

            // Add to timer
            SenseRepeatClass ts = new SenseRepeatClass();
            ts.localID = m_localID;
            ts.itemID = m_itemID;
            ts.interval = sec;
            ts.name = name;
            ts.keyID = keyID;
            ts.type = type;
            ts.range = range;
            ts.arc = arc;
            ts.host = host;

            ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
            lock (SenseRepeatListLock)
            {
                SenseRepeaters.Add(ts);
            }
        }

        public void UnSetSenseRepeaterEvents(uint m_localID, LLUUID m_itemID)
        {
            // Remove from timer
            lock (SenseRepeatListLock)
            {
                List<SenseRepeatClass> NewSensors = new List<SenseRepeatClass>();
                foreach (SenseRepeatClass ts in SenseRepeaters)
                {
                    if (ts.localID != m_localID && ts.itemID != m_itemID)
                    {
                        NewSensors.Add(ts);
                    }
                }
                SenseRepeaters.Clear();
                SenseRepeaters = NewSensors;
            }
        }

        public void CheckSenseRepeaterEvents()
        {
            // Nothing to do here?
            if (SenseRepeaters.Count == 0)
                return;

            lock (SenseRepeatListLock)
            {
                // Go through all timers
                foreach (SenseRepeatClass ts in SenseRepeaters)
                {
                    // Time has passed?
                    if (ts.next.ToUniversalTime() < DateTime.Now.ToUniversalTime())
                    {
                        SensorSweep(ts);
                        // set next interval
                        ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
                    }
                }
            } // lock
        }

        public void SenseOnce(uint m_localID, LLUUID m_itemID,
                              string name, LLUUID keyID, int type,
                              double range, double arc, SceneObjectPart host)
        {
            // Add to timer
            SenseRepeatClass ts = new SenseRepeatClass();
            ts.localID = m_localID;
            ts.itemID = m_itemID;
            ts.interval = 0;
            ts.name = name;
            ts.keyID = keyID;
            ts.type = type;
            ts.range = range;
            ts.arc = arc;
            ts.host = host;
            SensorSweep(ts);
        }

        public LSL_Types.list GetSensorList(uint m_localID, LLUUID m_itemID)
        {
            lock (SenseLock)
            {
                Dictionary<LLUUID, LSL_Types.list> Obj = null;
                if (!SenseEvents.TryGetValue(m_localID, out Obj))
                {
                    #if SPAM
                    m_CmdManager.m_ScriptEngine.Log.Info("[AsyncLSL]: GetSensorList missing localID: " + m_localID);
                    #endif
                    return null;
                }
                lock (Obj)
                {
                    // Get script
                    LSL_Types.list SenseList = null;
                    if (!Obj.TryGetValue(m_itemID, out SenseList))
                    {
                        #if SPAM
                        m_CmdManager.m_ScriptEngine.Log.Info("[AsyncLSL]: GetSensorList missing itemID: " + m_itemID);
                        #endif
                        return null;
                    }
                    return SenseList;
                }
            }
        }

        private void SensorSweep(SenseRepeatClass ts)
        {
            //m_ScriptEngine.Log.Info("[AsyncLSL]:Enter SensorSweep");
            SceneObjectPart SensePoint = ts.host;

            if (SensePoint == null)
            {

                #if SPAM
                //m_ScriptEngine.Log.Info("[AsyncLSL]: Enter SensorSweep (SensePoint == null) for "+ts.itemID.ToString());
                #endif
                return;
            }
            //m_ScriptEngine.Log.Info("[AsyncLSL]: Enter SensorSweep Scan");

            LLVector3 sensorPos = SensePoint.AbsolutePosition;
            LLVector3 regionPos = new LLVector3(m_CmdManager.m_ScriptEngine.World.RegionInfo.RegionLocX * Constants.RegionSize, m_CmdManager.m_ScriptEngine.World.RegionInfo.RegionLocY * Constants.RegionSize, 0);
            LLVector3 fromRegionPos = sensorPos + regionPos;

            LLQuaternion q = SensePoint.RotationOffset;
            LSL_Types.Quaternion r = new LSL_Types.Quaternion(q.X, q.Y, q.Z, q.W);
            LSL_Types.Vector3 forward_dir = (new LSL_Types.Vector3(1, 0, 0) * r);
            double mag_fwd = LSL_Types.Vector3.Mag(forward_dir);

            // Here we should do some smart culling ...
            // math seems quicker than strings so try that first
            LSL_Types.list SensedObjects = new LSL_Types.list();
            LSL_Types.Vector3 ZeroVector = new LSL_Types.Vector3(0, 0, 0);

            foreach (EntityBase ent in m_CmdManager.m_ScriptEngine.World.Entities.Values)
            {
                LLVector3 toRegionPos = ent.AbsolutePosition + regionPos;
                double dis = Math.Abs((double)Util.GetDistanceTo(toRegionPos, fromRegionPos));
                if (dis <= ts.range)
                {
                    // In Range, is it the right Type ?
                    int objtype = 0;

                    if (m_CmdManager.m_ScriptEngine.World.GetScenePresence(ent.UUID) != null) objtype |= 0x01; // actor
                    if (ent.Velocity.Equals(ZeroVector))
                        objtype |= 0x04; // passive non-moving
                    else
                        objtype |= 0x02; // active moving
                    if (ent is IScript) objtype |= 0x08; // Scripted. It COULD have one hidden ...

                    if (((ts.type & objtype) != 0) || ((ts.type & objtype) == ts.type))
                    {
                        // docs claim AGENT|ACTIVE should find agent objects OR active objects
                        // so the bitwise AND with object type should be non-zero

                        // Right type too, what about the other params , key and name ?
                        bool keep = true;
                        if (ts.arc < Math.PI)
                        {
                            // not omni-directional. Can you see it ?
                            // vec forward_dir = llRot2Fwd(llGetRot())
                            // vec obj_dir = toRegionPos-fromRegionPos
                            // dot=dot(forward_dir,obj_dir)
                            // mag_fwd = mag(forward_dir)
                            // mag_obj = mag(obj_dir)
                            // ang = acos(dot /(mag_fwd*mag_obj))
                            double ang_obj = 0;
                            try
                            {
                                LLVector3 diff = toRegionPos - fromRegionPos;
                                LSL_Types.Vector3 obj_dir = new LSL_Types.Vector3(diff.X, diff.Y, diff.Z);
                                double dot = LSL_Types.Vector3.Dot(forward_dir, obj_dir);
                                double mag_obj = LSL_Types.Vector3.Mag(obj_dir);
                                ang_obj = Math.Acos(dot / (mag_fwd * mag_obj));
                            }
                            catch
                            {
                            }

                            if (ang_obj > ts.arc) keep = false;
                        }

                        if (keep && (ts.keyID != LLUUID.Zero) && (ts.keyID != ent.UUID))
                        {
                            keep = false;
                        }

                        if (keep && (ts.name.Length > 0))
                        {
                            string avatarname=null;
                            string objectname=null;
                            string entname =ent.Name;

                            // try avatar username surname
                            UserProfileData profile = m_CmdManager.m_ScriptEngine.World.CommsManager.UserService.GetUserProfile(ent.UUID);
                            if (profile != null)
                            {
                               avatarname = profile.FirstName + " " + profile.SurName;
                            }
                            // try an scene object
                            SceneObjectPart SOP = m_CmdManager.m_ScriptEngine.World.GetSceneObjectPart(ent.UUID);
                            if (SOP != null)
                            {
                                objectname = SOP.Name;
                            }

                            if ((ts.name != entname) && (ts.name != avatarname) && (ts.name != objectname))
                            {
                               keep = false;
                            }
                        }

                        if (keep == true) SensedObjects.Add(ent.UUID);
                    }
                }
            }
            #if SPAM
            //m_ScriptEngine.Log.Info("[AsyncLSL]: Enter SensorSweep SenseLock");
            #endif
            lock (SenseLock)
            {
                // Create object if it doesn't exist
                if (SenseEvents.ContainsKey(ts.localID) == false)
                {
                    SenseEvents.Add(ts.localID, new Dictionary<LLUUID, LSL_Types.list>());
                }
                // clear if previous traces exist
                Dictionary<LLUUID, LSL_Types.list> Obj;
                SenseEvents.TryGetValue(ts.localID, out Obj);
                if (Obj.ContainsKey(ts.itemID) == true)
                    Obj.Remove(ts.itemID);

                // note list may be zero length
                Obj.Add(ts.itemID, SensedObjects);

                if (SensedObjects.Length == 0)
                {
                    // send a "no_sensor"
                    // Add it to queue
                    m_CmdManager.m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(ts.localID, ts.itemID, "no_sensor", EventQueueManager.llDetectNull,
                                                                        new object[] { });
                }
                else
                {
                    m_CmdManager.m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(ts.localID, ts.itemID, "sensor", EventQueueManager.llDetectNull,
                                                                        new object[] { new LSL_Types.LSLInteger(SensedObjects.Length) });
                }
                m_CmdManager.m_ScriptEngine.World.EventManager.TriggerTimerEvent(ts.localID, ts.interval);
            }
        }
    }
}