public int sub_1003F160(ref AnimPathData backoff)
{
Span <int> directionOffsets = stackalloc int[8]
{
4,
5,
3,
6,
2,
7,
1,
0
};
var flags = backoff.flags;
var minDistTiles = backoff.distTiles;
backoff.flags = flags & ~AnimPathDataFlags.UNK800;
int tileDelta = backoff.srcLoc.EstimateDistance(backoff.destLoc);
if (tileDelta >= minDistTiles)
{
return(0);
}
var savedDestLocDist = 0;
var savedDestLoc = locXY.Zero;
// The distance we need to back off is reduced by how far we're already away
var neededDistance = minDistTiles - tileDelta;
var relPosCode = backoff.srcLoc.GetCompassDirection(backoff.destLoc);
// Try all directions
int result = 0;
foreach (var directionOffset in directionOffsets)
{
var direction = relPosCode.Rotate(directionOffset);
BackOffInDirection(backoff.srcLoc, direction, neededDistance, out backoff.destLoc);
result = SearchInStraightLine(ref backoff);
if (result != 0)
{
break;
}
if (savedDestLocDist < backoff.distTiles)
{
savedDestLocDist = backoff.distTiles;
savedDestLoc = backoff.destLoc;
}
}
backoff.flags |= AnimPathDataFlags.UNK800;
if (result == 0 && savedDestLocDist > 0)
{
backoff.destLoc = savedDestLoc;
result = SearchInStraightLine(ref backoff);
}
return(result);
}
private int SearchInStraightLine(ref AnimPathData boPkt)
{
if (boPkt.srcLoc.EstimateDistance(boPkt.destLoc) > 32)
{
return(0);
}
var regardSinks = (boPkt.flags & AnimPathDataFlags.UNK_8) != 0;
MapObjectSystem.ObstacleFlag flags = 0;
if ((boPkt.flags & AnimPathDataFlags.CantOpenDoors) != 0)
{
flags = MapObjectSystem.ObstacleFlag.UNK_1;
}
if ((boPkt.flags & AnimPathDataFlags.UNK_4) != 0)
{
flags |= MapObjectSystem.ObstacleFlag.UNK_2;
}
if ((boPkt.flags & AnimPathDataFlags.UNK10) != 0)
{
flags |= MapObjectSystem.ObstacleFlag.UNK_4;
}
var curLoc = boPkt.srcLoc;
int i;
for (i = 0; i < boPkt.size; i++)
{
if (curLoc == boPkt.destLoc)
{
break;
}
var direction = curLoc.GetCompassDirection(boPkt.destLoc);
boPkt.deltas[i] = (sbyte)direction;
var nextLoc = curLoc.Offset(direction);
var backoffFlags = boPkt.flags;
if ((backoffFlags & AnimPathDataFlags.UNK40) == 0)
{
if (nextLoc == boPkt.destLoc && (backoffFlags & AnimPathDataFlags.UNK_1) != 0)
{
curLoc = nextLoc;
continue;
}
if (!regardSinks &&
(backoffFlags & AnimPathDataFlags.UNK_4000) == 0 &&
GameSystems.Tile.IsBlockingOldVersion(nextLoc))
{
break;
}
if (GameSystems.MapObject.HasBlockingObjectInDir(boPkt.handle, new LocAndOffsets(curLoc), direction,
flags))
{
break;
}
if ((boPkt.flags & AnimPathDataFlags.UNK_2000) != 0)
{
using var objIterator = new RaycastPacket();
objIterator.flags |= RaycastFlag.StopAfterFirstFlyoverFound
| RaycastFlag.StopAfterFirstBlockerFound
| RaycastFlag.HasSourceObj
| RaycastFlag.HasRadius;
objIterator.targetLoc.location.locx = nextLoc.locx;
objIterator.origin = new LocAndOffsets(curLoc);
objIterator.targetLoc.location.locy = nextLoc.locy;
objIterator.radius = boPkt.handle.GetRadius() * 0.5f;
objIterator.sourceObj = boPkt.handle;
if (objIterator.Raycast() > 0)
{
break;
}
}
var trap = FindTrapAtLocation(nextLoc);
if (trap != null && GameSystems.Trap.KnowsAboutDangerousTrap(boPkt.handle, trap))
{
break;
}
if ((boPkt.flags & AnimPathDataFlags.UNK400) != 0)
{
if (FindBurningScenery(nextLoc) != null)
{
break;
}
}
}
curLoc = nextLoc;
}
// Did not reach the destination
if (curLoc != boPkt.destLoc)
{
boPkt.distTiles = i;
return(0);
}
if ((boPkt.flags & AnimPathDataFlags.UNK_1) != 0)
{
return(i - 1);
}
return(i);
}
public int AnimPathSearch(ref AnimPathData pathData)
{
var backoffFlags = pathData.flags;
if ((backoffFlags & AnimPathDataFlags.UNK800) != 0)
{
return(sub_1003F160(ref pathData));
}
pathData.distTiles = 0;
if (pathData.srcLoc == pathData.destLoc)
{
return(0);
}
if ((backoffFlags & AnimPathDataFlags.UNK80) != 0 ||
(backoffFlags & AnimPathDataFlags.UNK100) != 0)
{
return(GameSystems.PathX.RasterizeLineBetweenLocsScreenspace(pathData.srcLoc, pathData.destLoc,
pathData.deltas));
}
if ((backoffFlags & (AnimPathDataFlags.UNK40 | AnimPathDataFlags.UNK_1)) == 0)
{
if ((backoffFlags & AnimPathDataFlags.UNK_8) == 0 &&
(backoffFlags & AnimPathDataFlags.UNK_4000) == 0 &&
GameSystems.Tile.IsBlockingOldVersion(pathData.destLoc))
{
return(0);
}
ObjList objListResult;
if ((pathData.flags & AnimPathDataFlags.UNK_2000) != 0)
{
var rangeInches = pathData.handle.GetRadius();
objListResult = ObjList.ListRadius(new LocAndOffsets(pathData.destLoc), rangeInches,
ObjectListFilter.OLC_CRITTERS | ObjectListFilter.OLC_SCENERY | ObjectListFilter.OLC_CONTAINER);
}
else
{
objListResult = ObjList.ListTile(pathData.destLoc,
ObjectListFilter.OLC_CRITTERS | ObjectListFilter.OLC_SCENERY | ObjectListFilter.OLC_CONTAINER);
}
var foundObjAtTarget = false;
foreach (var objAtTarget in objListResult)
{
if (!objAtTarget.HasFlag(ObjectFlag.NO_BLOCK))
{
if (!objAtTarget.IsCritter())
{
foundObjAtTarget = true;
break;
}
if (!GameSystems.Critter.IsDeadNullDestroyed(objAtTarget))
{
foundObjAtTarget = true;
break;
}
}
}
objListResult.Dispose();
if (foundObjAtTarget)
{
return(0);
}
}
int result;
if ((pathData.flags & AnimPathDataFlags.UNK200) != 0)
{
result = 0;
}
else
{
result = SearchInStraightLine(ref pathData);
if (result != 0)
{
return(result);
}
}
if ((pathData.flags & AnimPathDataFlags.UNK1000) != 0)
{
throw new NotImplementedException();
// result = sub_1003E240 /*0x1003e240*/(pathData, 300);
}
else if ((pathData.flags & AnimPathDataFlags.UNK20) != 0)
{
throw new NotImplementedException();
// result = sub_1003F2C0 /*0x1003f2c0*/(pathData);
}
return(result);
}
