//TODO clean this up to be easier to read/understand now that it is optimized for cylinder check only
public static void findShieldedPartsCylinder(Part basePart, List <Part> shieldedParts, float topY, float bottomY, float topRadius, float bottomRadius)
{
float height = topY - bottomY;
float largestRadius = topRadius > bottomRadius ? topRadius : bottomRadius;
Vector3 lookupCenterLocal = new Vector3(0, bottomY + (height * 0.5f), 0);
Vector3 lookupTopLocal = new Vector3(0, topY, 0);
Vector3 lookupBottomLocal = new Vector3(0, bottomY, 0);
Vector3 lookupCenterGlobal = basePart.transform.TransformPoint(lookupCenterLocal);
Ray lookupRay = new Ray(lookupBottomLocal, new Vector3(0, 1, 0));
List <Part> partsFound = new List <Part>();
//do a basic sphere check vs the maximal size of the cylinder
Collider[] foundColliders = Physics.OverlapSphere(lookupCenterGlobal, height * 1.5f, 1);
foreach (Collider col in foundColliders)
{
Part pt = col.gameObject.GetComponentUpwards <Part>();
if (pt != null && pt != basePart && pt.vessel == basePart.vessel && !partsFound.Contains(pt))
{
partsFound.Add(pt);
}
}
Vector3 otherPartCenterLocal;
float partYPos;
float partYPercent;
float partYRadius;
float radiusOffset = topRadius - bottomRadius;
foreach (Part pt in partsFound)
{
Vector3 otherPartCenter = pt.partTransform.TransformPoint(PartGeometryUtil.FindBoundsCentroid(pt.GetRendererBounds(), pt.transform));
//check part bounds center point against conic projection of the fairing
otherPartCenterLocal = basePart.transform.InverseTransformPoint(otherPartCenter);
//check vs top and bottom of the shielded area
if (otherPartCenterLocal.y > lookupTopLocal.y || otherPartCenterLocal.y < lookupBottomLocal.y)
{
continue;
}
//quick check vs cylinder radius
float distFromLine = SSTUUtils.distanceFromLine(lookupRay, otherPartCenterLocal);
if (distFromLine > largestRadius)
{
continue;
}
//more precise check vs radius of the cone at that Y position
partYPos = otherPartCenterLocal.y - lookupBottomLocal.y;
partYPercent = partYPos / height;
partYRadius = partYPercent * radiusOffset;
if (distFromLine > (partYRadius + bottomRadius))
{
continue;
}
shieldedParts.Add(pt);
//print("Shielding part: " + pt);
}
}
public static void findShieldedPartsCylinder(Part basePart, Bounds fairingRenderBounds, List <Part> shieldedParts, float topY, float bottomY, float topRadius, float bottomRadius)
{
float height = topY - bottomY;
float largestRadius = topRadius > bottomRadius ? topRadius : bottomRadius;
Vector3 lookupCenterLocal = new Vector3(0, bottomY + (height * 0.5f), 0);
Vector3 lookupTopLocal = new Vector3(0, topY, 0);
Vector3 lookupBottomLocal = new Vector3(0, bottomY, 0);
Vector3 lookupCenterGlobal = basePart.transform.TransformPoint(lookupCenterLocal);
Ray lookupRay = new Ray(lookupBottomLocal, new Vector3(0, 1, 0));
List <Part> partsFound = new List <Part>();
Collider[] foundColliders = Physics.OverlapSphere(lookupCenterGlobal, height * 1.5f, 1);
foreach (Collider col in foundColliders)
{
Part pt = col.gameObject.GetComponentUpwards <Part>();
if (pt != null && pt != basePart && pt.vessel == basePart.vessel && !partsFound.Contains(pt))
{
partsFound.Add(pt);
}
}
Bounds[] otherPartBounds;
Vector3 otherPartCenterLocal;
float partYPos;
float partYPercent;
float partYRadius;
float radiusOffset = topRadius - bottomRadius;
foreach (Part pt in partsFound)
{
//check basic render bounds for containment
//TODO this check misses the case where the fairing is long/tall, containing a wide part; it will report that the wide part can fit inside
//of the fairing, due to the relative size of their colliders
otherPartBounds = pt.GetRendererBounds();
if (PartGeometryUtil.MergeBounds(otherPartBounds, pt.transform).size.sqrMagnitude > fairingRenderBounds.size.sqrMagnitude)
{
continue;
}
Vector3 otherPartCenter = pt.partTransform.TransformPoint(PartGeometryUtil.FindBoundsCentroid(otherPartBounds, pt.transform));
if (!fairingRenderBounds.Contains(otherPartCenter))
{
continue;
}
//check part bounds center point against conic projection of the fairing
otherPartCenterLocal = basePart.transform.InverseTransformPoint(otherPartCenter);
//check vs top and bottom of the shielded area
if (otherPartCenterLocal.y > lookupTopLocal.y || otherPartCenterLocal.y < lookupBottomLocal.y)
{
continue;
}
//quick check vs cylinder radius
float distFromLine = SSTUUtils.distanceFromLine(lookupRay, otherPartCenterLocal);
if (distFromLine > largestRadius)
{
continue;
}
//more precise check vs radius of the cone at that Y position
partYPos = otherPartCenterLocal.y - lookupBottomLocal.y;
partYPercent = partYPos / height;
partYRadius = partYPercent * radiusOffset;
if (distFromLine > (partYRadius + bottomRadius))
{
continue;
}
shieldedParts.Add(pt);
}
}