/// <summary>
/// Checks for cover along the flight path of the bullet, doesn't check for walls or plants, only intended for cover with partial fillPercent
/// </summary>
private bool GetPartialCoverBetween(Vector3 sourceLoc, Vector3 targetLoc, out Thing cover)
{
//Sanity check
if (this.verbProps.projectileDef.projectile.flyOverhead)
{
cover = null;
return(false);
}
sourceLoc.Scale(new Vector3(1, 0, 1));
targetLoc.Scale(new Vector3(1, 0, 1));
//Calculate segment vector and segment amount
Vector3 shotVec = sourceLoc - targetLoc; //Vector from target to source
Vector3 segmentVec = shotVec.normalized * segmentLength;
float distToCheck = Mathf.Min(distToCheckForCover, shotVec.magnitude); //The distance to raycast
float numSegments = distToCheck / segmentLength;
//Raycast accross all segments to check for cover
List <IntVec3> checkedCells = new List <IntVec3>();
Thing targetThing = GridsUtility.GetEdifice(targetLoc.ToIntVec3());
Thing newCover = null;
for (int i = 0; i <= numSegments; i++)
{
IntVec3 cell = (targetLoc + segmentVec * i).ToIntVec3();
if (!checkedCells.Contains(cell))
{
//Cover check, if cell has cover compare fillPercent and get the highest piece of cover, ignore if cover is the target (e.g. solar panels, crashed ship, etc)
Thing coverAtCell = GridsUtility.GetCover(cell);
if (coverAtCell != null &&
(targetThing == null || !coverAtCell.Equals(targetThing)) &&
(newCover == null || newCover.def.fillPercent < coverAtCell.def.fillPercent))
{
newCover = coverAtCell;
}
}
}
cover = newCover;
//Report success if found cover that is not a wall or plant
return(cover != null &&
cover.def.Fillage != FillCategory.Full &&
cover.def.category != ThingCategory.Plant); //Don't care about trees
}
