//TODO: Update this to be individual maps
public virtual void UpdateLOS()
{
this.view = LOS.LosAt(Map.current, location, visionRadius);
}
private void BuildRange(Vector2Int point)
{
switch (areaType)
{
case AreaType.SINGLE_TARGET:
MarkArea(point.x, point.y, true); //Mark us again, just for funsies
break;
case AreaType.CHEBYSHEV_AREA: //Easy case first
for (int i = point.x - radius; i <= point.x + radius; i++)
{
for (int j = point.y - radius; j <= point.y + radius; j++)
{
MarkArea(i, j, true);
}
}
break;
case AreaType.MANHATTAN_AREA: //Second easiest case
for (int i = point.x - radius; i <= point.x + radius; i++)
{
for (int j = point.y - radius; j <= point.y + radius; j++)
{
if (Mathf.Abs(point.x - i) + Mathf.Abs(point.y - j) <= radius)
{
MarkArea(i, j, true);
}
}
}
break;
case AreaType.EUCLID_AREA: //Most complex
for (int i = point.x - radius; i <= point.x + radius; i++)
{
for (int j = point.y - radius; j <= point.y + radius; j++)
{
if (Vector2Int.Distance(point, new Vector2Int(i, j)) <= radius) //TODO: Confirm this actually works
{
MarkArea(i, j, true);
}
}
}
break;
case AreaType.LOS_AREA: //Most expensive call, but easy to understand
LOSData data = LOS.LosAt(Map.current, point, radius);
for (int i = point.x - radius; i <= point.x + radius; i++)
{
for (int j = point.y - radius; j <= point.y + radius; j++)
{
if (data.ValueAtWorld(i, j))
{
MarkArea(i, j, true);
}
}
}
break;
case AreaType.CONE: //This one is pretty wack. Try some vector fanciness?
/*
* General Strategy:
* Figure out the cosine value we're trying to reach (1/2 degree), and the main direction
* Normalize everything down to 1
* Run through every square, and figure out it's direction. Normalize it, dot it with
* other direction. Compare to cosine value, and if it's >, return a hit
*
* This trick works because dot(x, y) = |x||y|cos(theta), so by normalizing we can really
* cheaply compute the angle between the vectors
*/
float cosDeg = Mathf.Cos(Mathf.Deg2Rad * degree / 2);
Vector2 dir = ((Vector2)(point - origin)).normalized; //Get a good indicator of our direction
for (int i = origin.x - radius; i <= origin.x + radius; i++)
{
for (int j = origin.y - radius; j <= origin.y + radius; j++)
{
//Perform checks for in cone
Vector2 spot = new Vector2(i - origin.x, j - origin.y);
float dist = Mathf.Max(Mathf.Abs(spot.x), Mathf.Abs(spot.y));
if (dist <= radius) //TODO: Should this be < ?
{
if (Vector2.Dot(dir, spot.normalized) > cosDeg)
{
MarkArea(i, j, true);
}
}
}
}
break;
}
}
