static void SpawnRocks(PrefabSpawner spawner)
{
var allowedNodeTypes = new MapGraph.NodeType[] {
MapGraph.NodeType.Grass,
MapGraph.NodeType.TallGrass,
MapGraph.NodeType.Rocky
};
var rockNodes = mapGraph.FilterNodes(allowedNodeTypes).ToList();
int numRocks = (int)(rockNodes.Count * settings.rockAvgDensity);
for (int i = 0; i < numRocks; i++)
{
// Randomly select a node. If it has more than the maximum number
// of occupants, try again.
var node = rockNodes.ElementAt(prng.Next(rockNodes.Count));
if (node.numEnvironmentOccupants > 0)
{
i--;
continue;
}
MeshRenderer obj = spawner.SpawnPrefab(
settings.rockPrefab,
RandomOffset(node.centerPoint, mapGraph.center, settings.rockPositionDeviation),
RandomRotation(settings.rockRotationDeviation),
RandomScaling(settings.rockScale, settings.rockScaleDeviation)
);
obj.transform.gameObject.AddComponent <MeshCollider>();
// Increment the number of environmental occupants for the
// current node.
node.numEnvironmentOccupants++;
}
}
private static void FloodFill(
MapGraph.Node node,
MapGraph.NodeType targetType,
MapGraph.NodeType replacementType
)
{
if (targetType == replacementType ||
node.nodeType != targetType)
{
return;
}
node.nodeType = replacementType;
foreach (var neighbor in node.GetNeighbourNodes())
{
FloodFill(neighbor, targetType, replacementType);
}
}
