void UpdateLosForUnit(int unitid, IUnitDef unitdef)
{
int thisframecount = aicallback.GetCurrentFrame();
Float3 pos = friendlyunitpositionobserver.PosById[unitid] as Float3;
int seenmapx = (int)(pos.x / 16);
int seenmapy = (int)(pos.z / 16);
// int radius = (int)( unitdef.losRadius / 8 / 2 );
int radius = (int)unitdef.losRadius;
if (csai.DebugOn)
{
//aicallback.SendTextMsg( "Updating los for " + unitid + " " + unitdef.humanName + " los radius " + radius, 0 );
DrawingUtils.DrawCircle(pos, radius * 16);
}
logfile.WriteLine("Updating los for " + unitid + " " + unitdef.humanName + " los radius " + radius + " pos " + pos.ToString());
// go line by line, determine positive and negative extent of line, mark lostime
for (int deltay = -radius; deltay <= radius; deltay++)
{
int xextent = (int)Math.Sqrt(radius * radius - deltay * deltay);
for (int deltax = -xextent; deltax <= xextent; deltax++)
{
int thisx = seenmapx + deltax;
int thisy = seenmapy + deltay;
if (thisx >= 0 && thisx < mapwidth / 2 && thisy >= 0 && thisy < mapheight / 2)
{
LastSeenFrameCount[thisx, thisy] = thisframecount;
}
}
// in progress
}
LastLosRefreshFrameCountByUnitId[unitid] = thisframecount;
PosAtLastRefreshByUnitId[unitid] = pos;
logfile.WriteLine("...done");
}
// note: need to check compatible area
public Float3 GetNearestUnseen(Float3 currentpos, IUnitDef unitdef, int unseensmeansthismanyframes)
{
int currentunitarea = MovementMaps.GetInstance().GetArea(unitdef, currentpos);
int losmapwidth = LastSeenFrameCount.GetUpperBound(0) + 1;
int losmapheight = LastSeenFrameCount.GetUpperBound(0) + 1;
int maxradius = Math.Max(losmapheight, losmapwidth);
int unitlosradius = (int)unitdef.losRadius; // this is in map / 2 units, so it's ok
Int2[] circlepoints = CreateCirclePoints(unitlosradius);
int bestradius = 10000000;
int bestarea = 0;
Float3 bestpos = null;
int unitmapx = (int)(currentpos.x / 16);
int unitmapy = (int)(currentpos.y / 16);
int thisframecount = aicallback.GetCurrentFrame();
// step around in unitlosradius / 2 steps
for (int radius = unitlosradius * 2; radius <= maxradius; radius += unitlosradius / 2)
{
// calculate angle for a unitlosradius / 2 step at this radius.
double anglestepradians = 2 * Math.Asin(unitlosradius / 2 / 2 / radius);
for (double angleradians = 0; angleradians <= Math.PI * 2; angleradians += anglestepradians)
{
int unseenarea = 0;
int searchmapx = unitmapx + (int)((double)radius * Math.Cos(angleradians));
int searchmapy = unitmapy + (int)((double)radius * Math.Sin(angleradians));
int thisareanumber = MovementMaps.GetInstance().GetArea(unitdef, new Float3(searchmapx * 16, 0, searchmapy * 16));
if (thisareanumber == currentunitarea)
{
if (csai.DebugOn)
{
DrawingUtils.DrawCircle(new Float3(searchmapx * 16, 100, searchmapy * 16), unitlosradius);
}
foreach (Int2 point in circlepoints)
{
if (thisframecount - LastSeenFrameCount[searchmapx + point.x, searchmapx + point.y] > unseensmeansthismanyframes)
{
unseenarea++;
}
}
if (unseenarea >= (circlepoints.GetUpperBound(0) + 1) * 8 / 10)
{
return(new Float3(searchmapx * 16, 0, searchmapy * 16));
}
}
}
}
return(null);
}
// note: need to check compatible area
public Float3 GetNearestUnseen(Float3 currentpos, IUnitDef unitdef, int unseensmeansthismanyframes)
{
LosMap losmap = LosMap.GetInstance();
IAICallback aicallback = CSAI.GetInstance().aicallback;
int mapwidth = aicallback.GetMapWidth();
int mapheight = aicallback.GetMapHeight();
int currentunitarea = MovementMaps.GetInstance().GetArea(unitdef, currentpos);
int losmapwidth = losmap.LastSeenFrameCount.GetUpperBound(0) + 1;
int losmapheight = losmap.LastSeenFrameCount.GetUpperBound(0) + 1;
int maxradius = (int)Math.Sqrt(losmapheight * losmapheight + losmapwidth * losmapwidth);
int unitlosradius = (int)unitdef.losRadius; // this is in map / 2 units, so it's ok
Int2[] circlepoints = CreateCirclePoints(unitlosradius);
int bestradius = 10000000;
int bestarea = 0;
Float3 bestpos = null;
int unitmapx = (int)(currentpos.x / 16);
int unitmapy = (int)(currentpos.y / 16);
int thisframecount = aicallback.GetCurrentFrame();
// step around in unitlosradius steps
for (int radiuslosunits = unitlosradius * 2; radiuslosunits <= maxradius; radiuslosunits += unitlosradius)
{
// calculate angle for a unitlosradius / 2 step at this radius.
// DrawingUtils.DrawCircle(currentpos, radiuslosunits * 16);
double anglestepradians = 2 * Math.Asin((double)unitlosradius / 2 / (double)radiuslosunits);
//csai.DebugSay("anglestepradians: " + anglestepradians);
//return null;
for (double angleradians = 0; angleradians <= Math.PI * 2; angleradians += anglestepradians)
{
int unseenarea = 0;
int searchmapx = unitmapx + (int)((double)radiuslosunits * Math.Cos(angleradians));
int searchmapy = unitmapy + (int)((double)radiuslosunits * Math.Sin(angleradians));
if (searchmapx >= 0 && searchmapy >= 0 && searchmapx < (mapwidth / 2) && searchmapy < (mapheight / 2))
{
// if (csai.DebugOn)
// {
// int groupnumber = DrawingUtils.DrawCircle(new Float3(searchmapx * 16, 50 + aicallback.GetElevation( searchmapx * 16, searchmapy * 16 ), searchmapy * 16), unitlosradius * 16);
// aicallback.SetFigureColor(groupnumber, 1, 1, 0, 0.5);
// }
int thisareanumber = MovementMaps.GetInstance().GetArea(unitdef, new Float3(searchmapx * 16, 0, searchmapy * 16));
if (thisareanumber == currentunitarea)
{//
//if (csai.DebugOn)
// {
// int groupnumber = DrawingUtils.DrawCircle(new Float3(searchmapx * 16, 100, searchmapy * 16), unitlosradius * 16);
// aicallback.SetFigureColor(groupnumber, 1, 1, 0, 0.5);
// }
foreach (Int2 point in circlepoints)
{
int thismapx = searchmapx + point.x;
int thismapy = searchmapy + point.y;
if (thismapx >= 0 && thismapy >= 0 && thismapx < mapwidth / 2 && thismapy < mapheight / 2)
{
if (thisframecount - losmap.LastSeenFrameCount[thismapx, thismapy] > unseensmeansthismanyframes)
{
unseenarea++;
}
}
}
if (unseenarea >= (circlepoints.GetUpperBound(0) + 1) * 8 / 10)
{
int groupnumber = DrawingUtils.DrawCircle(new Float3(searchmapx * 16, 100 * aicallback.GetElevation(searchmapx * 16, searchmapy * 16), searchmapy * 16), unitlosradius * 16);
aicallback.SetFigureColor(groupnumber, 1, 0, 1, 0.5);
return(new Float3(searchmapx * 16, 0, searchmapy * 16));
}
// return new Float3(searchmapx * 16, 0, searchmapy * 16); // for debugging, remove later
}
}
}
}
return(null);
}