private void TrySpawnCavePlant()
{
WildSpawner.undergroundCells.Clear();
CellRect.CellRectIterator iterator = CellRect.WholeMap(this.map).GetIterator();
while (!iterator.Done())
{
IntVec3 current = iterator.Current;
if (GenPlantReproduction.GoodRoofForCavePlantReproduction(current, this.map))
{
if (current.GetFirstItem(this.map) == null && current.GetFirstPawn(this.map) == null && current.GetFirstBuilding(this.map) == null)
{
bool flag = false;
for (int i = 0; i < WildSpawner.cavePlants.Count; i++)
{
if (WildSpawner.cavePlants[i].CanEverPlantAt(current, this.map))
{
flag = true;
break;
}
}
if (flag)
{
WildSpawner.undergroundCells.Add(current);
}
}
}
iterator.MoveNext();
}
if (WildSpawner.undergroundCells.Any <IntVec3>())
{
IntVec3 cell = WildSpawner.undergroundCells.RandomElement <IntVec3>();
ThingDef plantDef = (from x in WildSpawner.cavePlants
where x.CanEverPlantAt(cell, this.map)
select x).RandomElement <ThingDef>();
GenPlantReproduction.TryReproduceFrom(cell, plantDef, SeedTargFindMode.Cave, this.map);
}
}
public static bool TryFindReproductionDestination(IntVec3 source, ThingDef plantDef, SeedTargFindMode mode, Map map, out IntVec3 foundCell)
{
float radius = -1f;
if (mode == SeedTargFindMode.Reproduce)
{
radius = plantDef.plant.reproduceRadius;
}
else if (mode == SeedTargFindMode.MapGenCluster)
{
radius = plantDef.plant.WildClusterRadiusActual;
}
else if (mode == SeedTargFindMode.MapEdge)
{
radius = 40f;
}
else if (mode == SeedTargFindMode.Cave)
{
radius = plantDef.plant.WildClusterRadiusActual;
}
int num = 0;
int num2 = 0;
float num3 = 0f;
CellRect cellRect = CellRect.CenteredOn(source, Mathf.RoundToInt(radius));
cellRect.ClipInsideMap(map);
for (int i = cellRect.minZ; i <= cellRect.maxZ; i++)
{
for (int j = cellRect.minX; j <= cellRect.maxX; j++)
{
IntVec3 c2 = new IntVec3(j, 0, i);
Plant plant = c2.GetPlant(map);
if (plant != null && (mode != SeedTargFindMode.Cave || plant.def.plant.cavePlant))
{
num++;
if (plant.def == plantDef)
{
num2++;
}
}
num3 += c2.GetTerrain(map).fertility;
}
}
float num4 = (mode != SeedTargFindMode.Cave) ? map.Biome.plantDensity : 0.5f;
float num5 = num3 * num4;
bool flag = (float)num > num5;
bool flag2 = (float)num > num5 * 1.25f;
if (flag2)
{
foundCell = IntVec3.Invalid;
return(false);
}
if (mode != SeedTargFindMode.MapGenCluster && mode != SeedTargFindMode.Cave)
{
BiomeDef curBiome = map.Biome;
float num6 = curBiome.AllWildPlants.Sum((ThingDef pd) => curBiome.CommonalityOfPlant(pd));
float num7 = curBiome.CommonalityOfPlant(plantDef) / num6;
float num8 = curBiome.CommonalityOfPlant(plantDef) * plantDef.plant.wildCommonalityMaxFraction / num6;
float num9 = num5 * num8;
if ((float)num2 > num9)
{
foundCell = IntVec3.Invalid;
return(false);
}
float num10 = num5 * num7;
bool flag3 = (float)num2 < num10 * 0.5f;
if (flag && !flag3)
{
foundCell = IntVec3.Invalid;
return(false);
}
}
Predicate <IntVec3> validator = (IntVec3 c) => plantDef.CanEverPlantAt(c, map) && (!plantDef.plant.cavePlant || GenPlantReproduction.GoodRoofForCavePlantReproduction(c, map)) && GenPlant.SnowAllowsPlanting(c, map) && source.InHorDistOf(c, radius) && GenSight.LineOfSight(source, c, map, true, null, 0, 0);
return(CellFinder.TryFindRandomCellNear(source, map, Mathf.CeilToInt(radius), validator, out foundCell));
}