public static bool Algorithm(ISpecies species,
ActiveSite site)
{
return(Reproduction.SufficientResources(species, site) &&
Reproduction.Establish(species, site) &&
Reproduction.MaturePresent(species, site));
}
//---------------------------------------------------------------------
public static bool Algorithm(ISpecies species,
ActiveSite site)
{
if (species.EffectiveSeedDist == Universal)
{
return(UniversalDispersal.Algorithm(species, site));
}
if (!Reproduction.SufficientResources(species, site))
{
if (isDebugEnabled)
{
log.DebugFormat("site {0}: {1} not seeded: insufficient light",
site.Location, species.Name);
}
return(false);
}
if (!Reproduction.Establish(species, site))
{
if (isDebugEnabled)
{
log.DebugFormat("site {0}: {1} not seeded: cannot establish",
site.Location, species.Name);
}
return(false);
}
if (Reproduction.MaturePresent(species, site))
{
if (isDebugEnabled)
{
log.DebugFormat("site {0}: {1} seeded on site",
site.Location, species.Name);
}
return(true);
}
if (isDebugEnabled)
{
log.DebugFormat("site {0}: search neighbors for {1}",
site.Location, species.Name);
}
foreach (RelativeLocationWeighted reloc in Seeding.MaxSeedQuarterNeighborhood)
{
double distance = reloc.Weight;
int rRow = (int)reloc.Location.Row;
int rCol = (int)reloc.Location.Column;
double EffD = (double)species.EffectiveSeedDist;
double MaxD = (double)species.MaxSeedDist;
if (distance > MaxD + ((double)Model.Core.CellLength / 2.0 * 1.414))
{
return(false); //Check no further
}
double dispersalProb = GetDispersalProbability(EffD, MaxD, distance);
//First check the Southeast quadrant:
if (dispersalProb > Model.Core.GenerateUniform())
{
Site neighbor = site.GetNeighbor(reloc.Location);
if (neighbor != null && neighbor.IsActive)
{
if (Reproduction.MaturePresent(species, (ActiveSite)neighbor))
{
return(true);
}
}
}
//Next, check all other quadrants:
if (dispersalProb > Model.Core.GenerateUniform())
{
Site neighbor = site.GetNeighbor(new RelativeLocation(rRow * -1, rCol));
if (rCol == 0)
{
neighbor = site.GetNeighbor(new RelativeLocation(0, rRow));
}
if (neighbor != null && neighbor.IsActive)
{
if (Reproduction.MaturePresent(species, (ActiveSite)neighbor))
{
return(true);
}
}
}
if (dispersalProb > Model.Core.GenerateUniform())
{
Site neighbor = site.GetNeighbor(new RelativeLocation(rRow * -1, rCol * -1));
if (neighbor != null && neighbor.IsActive)
{
if (Reproduction.MaturePresent(species, (ActiveSite)neighbor))
{
return(true);
}
}
}
if (dispersalProb > Model.Core.GenerateUniform())
{
Site neighbor = site.GetNeighbor(new RelativeLocation(rRow, rCol * -1));
if (rCol == 0)
{
neighbor = site.GetNeighbor(new RelativeLocation(0, rRow * -1));
}
if (neighbor != null && neighbor.IsActive)
{
if (Reproduction.MaturePresent(species, (ActiveSite)neighbor))
{
return(true);
}
}
}
} // end foreach relativelocation
return(false);
}
