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public static GetClosestPtOnBox ( |
||
| box | ||
| pIn | System.Point | |
| pOut | System.Point | |
| Résultat | uint | |
internal byte WalkboxFindTarget(Actor a, int destbox, Point walkdest)
{
var actor = (Actor0)a;
byte nextBox = (byte)GetNextBox(a.Walkbox, (byte)destbox);
if (nextBox != 0xFF && nextBox == destbox && AreBoxesNeighbors(a.Walkbox, nextBox))
{
actor.NewWalkTo = walkdest;
return(nextBox);
}
if (nextBox != 0xFF && nextBox != a.Walkbox)
{
Point p;
ScummMath.GetClosestPtOnBox(GetBoxCoordinates(nextBox), a.Position, out p);
actor.NewWalkTo = p;
}
else
{
if (walkdest.X == -1)
{
actor.NewWalkTo = actor.CurrentWalkTo;
}
else
{
actor.NewWalkTo = walkdest;
}
}
return(nextBox);
}
void GetGates(BoxCoords box1, BoxCoords box2, Point[] gateA, Point[] gateB)
{
int i, j;
var dist = new int[8];
var minDist = new int[3];
var closest = new int[3];
var box = new bool[3];
var closestPoint = new Point[8];
var boxCorner = new Point[8];
int line1, line2;
// For all corner coordinates of the first box, compute the point closest
// to them on the second box (and also compute the distance of these points).
boxCorner[0] = box1.UpperLeft;
boxCorner[1] = box1.UpperRight;
boxCorner[2] = box1.LowerRight;
boxCorner[3] = box1.LowerLeft;
for (i = 0; i < 4; i++)
{
dist[i] = (int)ScummMath.GetClosestPtOnBox(box2, boxCorner[i], out closestPoint[i]);
}
// Now do the same but with the roles of the first and second box swapped.
boxCorner[4] = box2.UpperLeft;
boxCorner[5] = box2.UpperRight;
boxCorner[6] = box2.LowerRight;
boxCorner[7] = box2.LowerLeft;
for (i = 4; i < 8; i++)
{
dist[i] = (int)ScummMath.GetClosestPtOnBox(box1, boxCorner[i], out closestPoint[i]);
}
// Find the three closest "close" points between the two boxes.
for (j = 0; j < 3; j++)
{
minDist[j] = 0xFFFF;
for (i = 0; i < 8; i++)
{
if (dist[i] < minDist[j])
{
minDist[j] = dist[i];
closest[j] = i;
}
}
dist[closest[j]] = 0xFFFF;
minDist[j] = (int)Math.Sqrt(minDist[j]);
box[j] = (closest[j] > 3); // Is the point on the first or on the second box?
}
// Finally, compute the actual "gate".
if (box[0] == box[1] && Math.Abs(minDist[0] - minDist[1]) < 4)
{
line1 = closest[0];
line2 = closest[1];
}
else if (box[0] == box[1] && minDist[0] == minDist[1])
{ // parallel
line1 = closest[0];
line2 = closest[1];
}
else if (box[0] == box[2] && minDist[0] == minDist[2])
{ // parallel
line1 = closest[0];
line2 = closest[2];
}
else if (box[1] == box[2] && minDist[1] == minDist[2])
{ // parallel
line1 = closest[1];
line2 = closest[2];
}
else if (box[0] == box[2] && Math.Abs(minDist[0] - minDist[2]) < 4)
{
line1 = closest[0];
line2 = closest[2];
}
else if (Math.Abs(minDist[0] - minDist[2]) < 4)
{
line1 = closest[1];
line2 = closest[2];
}
else if (Math.Abs(minDist[0] - minDist[1]) < 4)
{
line1 = closest[0];
line2 = closest[1];
}
else
{
line1 = closest[0];
line2 = closest[0];
}
// Set the gate
if (line1 < 4)
{
gateA[0] = boxCorner[line1];
gateA[1] = closestPoint[line1];
}
else
{
gateA[1] = boxCorner[line1];
gateA[0] = closestPoint[line1];
}
if (line2 < 4)
{
gateB[0] = boxCorner[line2];
gateB[1] = closestPoint[line2];
}
else
{
gateB[1] = boxCorner[line2];
gateB[0] = closestPoint[line2];
}
}
public override void Walk()
{
Point foundPath, tmp;
int new_dir, next_box;
if (Moving.HasFlag(MoveFlags.Turn))
{
new_dir = UpdateActorDirection(false);
if (Facing != new_dir)
{
SetDirection(new_dir);
}
else
{
Moving = MoveFlags.None;
}
return;
}
if (Moving == MoveFlags.None)
{
return;
}
if (Moving.HasFlag(MoveFlags.InLeg))
{
ActorWalkStep();
}
else
{
if (Moving.HasFlag(MoveFlags.LastLeg))
{
Moving = MoveFlags.None;
StartAnimActor(StandFrame);
if (_targetFacing != _walkdata.DestDir)
{
TurnToDirection(_walkdata.DestDir);
}
}
else
{
SetBox(_walkdata.CurBox);
if (Walkbox == _walkdata.DestBox)
{
foundPath = _walkdata.Dest;
Moving |= MoveFlags.LastLeg;
}
else
{
next_box = _scumm.GetNextBox(Walkbox, _walkdata.DestBox);
if (next_box < 0)
{
Moving |= MoveFlags.LastLeg;
return;
}
// Can't walk through locked boxes
var flags = _scumm.GetBoxFlags((byte)next_box);
if ((flags.HasFlag(BoxFlags.Locked)) && !((flags.HasFlag(BoxFlags.PlayerOnly) && !IsPlayer)))
{
Moving |= MoveFlags.LastLeg;
//_walkdata.destdir = -1;
}
_walkdata.CurBox = (byte)next_box;
ScummMath.GetClosestPtOnBox(_scumm.GetBoxCoordinates(_walkdata.CurBox), RealPosition, out tmp);
ScummMath.GetClosestPtOnBox(_scumm.GetBoxCoordinates(Walkbox), tmp, out foundPath);
}
CalcMovementFactor(foundPath);
}
}
}
