//should be able to
// update with new surface height...
public void updateWindowsWithNewSurfaceHeight(int newHeight, int xx, int zz, bool removedABlock)
{
ChangeOfLightStatus lightChangeStatus = ChangeOfLightStatus.NO_CHANGE;
List <LightColumn> needUpdateCols = new List <LightColumn>();
b.bug("upd with new surf height");
//REMOVE COLUMNS IF COLUMN REVEALED
if (removedABlock)
{
b.bug("remove cols above at x: " + xx + " zz: " + zz + "height: " + newHeight);
m_lightColumnMap.removeColumnsAbove(xx, newHeight, zz);
ChunkManager.debugLinesAssistant.clearColumns(); //DBG
}
checkSurfaceStatusAt(newHeight, xx, zz, ref lightChangeStatus, ref needUpdateCols);
//for now
if (lightChangeStatus == ChangeOfLightStatus.DARKENED)
{
Quad area = LightDomainAround(xx, zz);
b.bug("got darken by surface change. reset area" + area.toString());
resetAndUpdateColumnsWithin(area); //TEST WANT
}
else if (lightChangeStatus == ChangeOfLightStatus.LIGHTENED)
{
b.bug("got lightened");
updateColumnsWithin(LightDomainAround(xx, zz), needUpdateCols);
}
}
// this func. represnts our muddled strategy unfortuntly.
private void checkSurfaceStatusAt(int newHeight, int xx, int zz, ref ChangeOfLightStatus lightChangeStatus, ref List <LightColumn> needUpdateCols)
{
foreach (PTwo neighborPoint in DirectionUtil.SurroundingPTwoCoordsFromPTwo(new PTwo(xx, zz)))
{
//inefficient?
DiscreteDomainRangeList <LightColumn> lilcoms = m_lightColumnMap[neighborPoint];
b.bug("checking surface...");
if (lilcoms == null)
{
continue;
}
b.bug("not ull");
for (int i = 0; i < lilcoms.Count; ++i)
{
LightColumn lilc = lilcoms[i];
bool wasAboveSurface = surfaceExposedColumns.Contains(lilc);
if (lilc.range.extent() > newHeight)
{
b.bug("extent was greater than new height");
if (!wasAboveSurface)
{
b.bug("added a column now surf exposed");
lightChangeStatus = ChangeOfLightStatus.LIGHTENED;
surfaceExposedColumns.Add(lilc);
needUpdateCols.Add(lilc);
}
}
else
{
b.bug("below surface new height is: " + newHeight + "lilc range extent is: " + lilc.range.extent());
if (wasAboveSurface)
{
lightChangeStatus = ChangeOfLightStatus.DARKENED;
needUpdateCols.Add(lilc);
surfaceExposedColumns.Remove(lilc);
}
}
}
}
}
