public void CalculateRaySpacing(BoundingBox box)
{
horizontalRayCount = FixedMath.RoundToInt(box.height.Div(raySpacing));
verticalRayCount = FixedMath.RoundToInt(box.width.Div(raySpacing));
horizontalRayCount = (int)FixedMath.Max(horizontalRayCount, 2);
verticalRayCount = (int)FixedMath.Max(verticalRayCount, 2);
horizontalRaySpacing = box.height / (horizontalRayCount - 1);
verticalRaySpacing = box.width / (verticalRayCount - 1);
}
public GridNode GetNode()
{
//Calculated closest side to raycast in first
long xDif = OffsettedPos.x - XGrid;
xDif = xDif.ClampOne();
long yDif = OffsettedPos.y - YGrid;
yDif = yDif.ClampOne();
long nodeHalfWidth = FixedMath.One / 2;
//Check to see if we should raycast towards corner first
if ((xDif.Abs() >= nodeHalfWidth / 2) &&
(yDif.Abs() >= nodeHalfWidth / 2))
{
dirX = FixedMath.RoundToInt(xDif);
dirY = FixedMath.RoundToInt(yDif);
}
else
{
if (xDif.Abs() < yDif.Abs())
{
dirX = 0;
dirY = yDif.RoundToInt();
}
else
{
dirX = xDif.RoundToInt();
dirY = 0;
}
}
int layerStartX = dirX,
layerStartY = dirY;
int iterations = 0; // <- this is for debugging
for (layer = 1; layer <= this.MaxTestDistance;)
{
this.CheckPathNode(GridManager.GetNode(XGrid + dirX, YGrid + dirY));
if (this.castNodeFound)
{
return(this.closestNode);
}
AdvanceRotation();
//If we make a full loop
if (layerStartX == dirX && layerStartY == dirY)
{
layer++;
//Advance a layer instead of rotation
if (dirX > 0)
{
dirX = layer;
}
else if (dirX < 0)
{
dirX = -layer;
}
if (dirY > 0)
{
dirY = layer;
}
else if (dirY < 0)
{
dirY = -layer;
}
layerStartX = dirX;
layerStartY = dirY;
}
iterations++;
if (iterations > 500)
{
Debug.Log("tew many");
break;
}
}
//If the cast node is found or the side has been checked, do not raycast on that side
if (!castNodeFound)
{
return(null);
}
return(closestNode);
}
