//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_AltRoutingFloodCluster_r(int areanum)
{
int i, otherareanum;
aas_area_t *area;
aas_face_t *face;
//add the current area to the areas of the current cluster
clusterareas[numclusterareas] = areanum;
numclusterareas++;
//remove the area from the mid range areas
midrangeareas[areanum].valid = qfalse;
//flood to other areas through the faces of this area
area = &aasworld.areas[areanum];
for (i = 0; i < area->numfaces; i++)
{
face = &aasworld.faces[abs(aasworld.faceindex[area->firstface + i])];
//get the area at the other side of the face
if (face->frontarea == areanum) otherareanum = face->backarea;
else otherareanum = face->frontarea;
//if there is an area at the other side of this face
if (!otherareanum) continue;
//if the other area is not a midrange area
if (!midrangeareas[otherareanum].valid) continue;
//
AAS_AltRoutingFloodCluster_r(otherareanum);
} //end for
} //end of the function AAS_AltRoutingFloodCluster_r
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_AlternativeRouteGoals(vec3_t start, int startareanum, vec3_t goal, int goalareanum, int travelflags,
aas_altroutegoal_t *altroutegoals, int maxaltroutegoals,
int type)
{
#ifndef ENABLE_ALTROUTING
return 0;
#else
int i, j, bestareanum;
int numaltroutegoals, nummidrangeareas;
int starttime, goaltime, goaltraveltime;
float dist, bestdist;
vec3_t mid, dir;
#ifdef ALTROUTE_DEBUG
int startmillisecs;
startmillisecs = Sys_MilliSeconds();
#endif
if (!startareanum || !goalareanum)
return 0;
//travel time towards the goal area
goaltraveltime = AAS_AreaTravelTimeToGoalArea(startareanum, start, goalareanum, travelflags);
//clear the midrange areas
Com_Memset(midrangeareas, 0, aasworld.numareas * sizeof(midrangearea_t));
numaltroutegoals = 0;
//
nummidrangeareas = 0;
//
for (i = 1; i < aasworld.numareas; i++)
{
//
if (!(type & ALTROUTEGOAL_ALL))
{
if (!(type & ALTROUTEGOAL_CLUSTERPORTALS && (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL)))
{
if (!(type & ALTROUTEGOAL_VIEWPORTALS && (aasworld.areasettings[i].contents & AREACONTENTS_VIEWPORTAL)))
{
continue;
} //end if
} //end if
} //end if
//if the area has no reachabilities
if (!AAS_AreaReachability(i)) continue;
//tavel time from the area to the start area
starttime = AAS_AreaTravelTimeToGoalArea(startareanum, start, i, travelflags);
if (!starttime) continue;
//if the travel time from the start to the area is greater than the shortest goal travel time
if (starttime > (float) 1.1 * goaltraveltime) continue;
//travel time from the area to the goal area
goaltime = AAS_AreaTravelTimeToGoalArea(i, NULL, goalareanum, travelflags);
if (!goaltime) continue;
//if the travel time from the area to the goal is greater than the shortest goal travel time
if (goaltime > (float) 0.8 * goaltraveltime) continue;
//this is a mid range area
midrangeareas[i].valid = qtrue;
midrangeareas[i].starttime = starttime;
midrangeareas[i].goaltime = goaltime;
Log_Write("%d midrange area %d", nummidrangeareas, i);
nummidrangeareas++;
} //end for
//
for (i = 1; i < aasworld.numareas; i++)
{
if (!midrangeareas[i].valid) continue;
//get the areas in one cluster
numclusterareas = 0;
AAS_AltRoutingFloodCluster_r(i);
//now we've got a cluster with areas through which an alternative route could go
//get the 'center' of the cluster
VectorClear(mid);
for (j = 0; j < numclusterareas; j++)
{
VectorAdd(mid, aasworld.areas[clusterareas[j]].center, mid);
} //end for
VectorScale(mid, 1.0 / numclusterareas, mid);
//get the area closest to the center of the cluster
bestdist = 999999;
bestareanum = 0;
for (j = 0; j < numclusterareas; j++)
{
VectorSubtract(mid, aasworld.areas[clusterareas[j]].center, dir);
dist = VectorLength(dir);
if (dist < bestdist)
{
bestdist = dist;
bestareanum = clusterareas[j];
} //end if
} //end for
//now we've got an area for an alternative route
//FIXME: add alternative goal origin
VectorCopy(aasworld.areas[bestareanum].center, altroutegoals[numaltroutegoals].origin);
altroutegoals[numaltroutegoals].areanum = bestareanum;
altroutegoals[numaltroutegoals].starttraveltime = midrangeareas[bestareanum].starttime;
altroutegoals[numaltroutegoals].goaltraveltime = midrangeareas[bestareanum].goaltime;
altroutegoals[numaltroutegoals].extratraveltime =
(midrangeareas[bestareanum].starttime + midrangeareas[bestareanum].goaltime) -
goaltraveltime;
numaltroutegoals++;
//
#ifdef ALTROUTE_DEBUG
AAS_ShowAreaPolygons(bestareanum, 1, qtrue);
#endif
//don't return more than the maximum alternative route goals
if (numaltroutegoals >= maxaltroutegoals) break;
} //end for
#ifdef ALTROUTE_DEBUG
botimport.Print(PRT_MESSAGE, "alternative route goals in %d msec\n", Sys_MilliSeconds() - startmillisecs);
#endif
return numaltroutegoals;
#endif
} //end of the function AAS_AlternativeRouteGoals
int AAS_AlternativeRouteGoals(vec3_t start, vec3_t goal, int travelflags,
aas_altroutegoal_t *altroutegoals, int maxaltroutegoals,
int color)
{
#ifndef ENABLE_ALTROUTING
return 0;
#else
int i, j, startareanum, goalareanum, bestareanum;
int numaltroutegoals, nummidrangeareas;
int starttime, goaltime, goaltraveltime;
float dist, bestdist;
vec3_t mid, dir;
int reachnum, time;
int a1, a2;
/*#ifdef DEBUG
int startmillisecs;
startmillisecs = Sys_MilliSeconds();
#endif*/
startareanum = AAS_PointAreaNum(start);
if (!startareanum)
{
return 0;
}
goalareanum = AAS_PointAreaNum(goal);
if (!goalareanum)
{
VectorCopy(goal, dir);
dir[2] += 30;
goalareanum = AAS_PointAreaNum(dir);
if (!goalareanum)
{
return 0;
}
}
//travel time towards the goal area
goaltraveltime = AAS_AreaTravelTimeToGoalArea(startareanum, start, goalareanum, travelflags);
//clear the midrange areas
memset(midrangeareas, 0, (*aasworld).numareas * sizeof(midrangearea_t));
numaltroutegoals = 0;
//
nummidrangeareas = 0;
//
for (i = 1; i < (*aasworld).numareas; i++)
{
//
if (!((*aasworld).areasettings[i].contents & AREACONTENTS_ROUTEPORTAL) &&
!((*aasworld).areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL))
{
continue;
}
//if the area has no reachabilities
if (!AAS_AreaReachability(i))
{
continue;
}
//tavel time from the area to the start area
starttime = AAS_AreaTravelTimeToGoalArea(startareanum, start, i, travelflags);
if (!starttime)
{
continue;
}
//if the travel time from the start to the area is greater than the shortest goal travel time
if (starttime > 500 + 3.0 * goaltraveltime)
{
continue;
}
//travel time from the area to the goal area
goaltime = AAS_AreaTravelTimeToGoalArea(i, NULL, goalareanum, travelflags);
if (!goaltime)
{
continue;
}
//if the travel time from the area to the goal is greater than the shortest goal travel time
if (goaltime > 500 + 3.0 * goaltraveltime)
{
continue;
}
//this is a mid range area
midrangeareas[i].valid = qtrue;
midrangeareas[i].starttime = starttime;
midrangeareas[i].goaltime = goaltime;
Log_Write("%d midrange area %d", nummidrangeareas, i);
nummidrangeareas++;
} //end for
//
for (i = 1; i < (*aasworld).numareas; i++)
{
if (!midrangeareas[i].valid)
{
continue;
}
//get the areas in one cluster
numclusterareas = 0;
AAS_AltRoutingFloodCluster_r(i);
//now we've got a cluster with areas through which an alternative route could go
//get the 'center' of the cluster
VectorClear(mid);
for (j = 0; j < numclusterareas; j++)
{
VectorAdd(mid, (*aasworld).areas[clusterareas[j]].center, mid);
} //end for
VectorScale(mid, 1.0 / numclusterareas, mid);
//get the area closest to the center of the cluster
bestdist = 999999;
bestareanum = 0;
for (j = 0; j < numclusterareas; j++)
{
VectorSubtract(mid, (*aasworld).areas[clusterareas[j]].center, dir);
dist = VectorLength(dir);
if (dist < bestdist)
{
bestdist = dist;
bestareanum = clusterareas[j];
} //end if
} //end for
// make sure the route to the destination isn't in the same direction as the route to the source
if (!AAS_AreaRouteToGoalArea(bestareanum, (*aasworld).areawaypoints[bestareanum], goalareanum, travelflags, &time, &reachnum))
{
continue;
}
a1 = (*aasworld).reachability[reachnum].areanum;
if (!AAS_AreaRouteToGoalArea(bestareanum, (*aasworld).areawaypoints[bestareanum], startareanum, travelflags, &time, &reachnum))
{
continue;
}
a2 = (*aasworld).reachability[reachnum].areanum;
if (a1 == a2)
{
continue;
}
//now we've got an area for an alternative route
//FIXME: add alternative goal origin
VectorCopy((*aasworld).areawaypoints[bestareanum], altroutegoals[numaltroutegoals].origin);
altroutegoals[numaltroutegoals].areanum = bestareanum;
altroutegoals[numaltroutegoals].starttraveltime = midrangeareas[bestareanum].starttime;
altroutegoals[numaltroutegoals].goaltraveltime = midrangeareas[bestareanum].goaltime;
altroutegoals[numaltroutegoals].extratraveltime =
(midrangeareas[bestareanum].starttime + midrangeareas[bestareanum].goaltime) -
goaltraveltime;
numaltroutegoals++;
//
/*#ifdef DEBUG
botimport.Print(PRT_MESSAGE, "alternative route goal area %d, numclusterareas = %d\n", bestareanum, numclusterareas);
if (color)
{
AAS_DrawPermanentCross((*aasworld).areas[bestareanum].center, 10, color);
} //end if
//AAS_ShowArea(bestarea, qtrue);
#endif*/
//don't return more than the maximum alternative route goals
if (numaltroutegoals >= maxaltroutegoals)
{
break;
}
} //end for
//botimport.Print(PRT_MESSAGE, "%d alternative route goals\n", numaltroutegoals);
#ifdef DEBUG
// botimport.Print(PRT_MESSAGE, "alternative route goals in %d msec\n", Sys_MilliSeconds() - startmillisecs);
#endif
return numaltroutegoals;
#endif
} //end of the function AAS_AlternativeRouteGoals
