/// <summary>
/// Attempts to add a branch generator to the list.
/// Branches are generated last so as not to mess up vertex order.
/// A generator is only added if a randomly selected face doesn't face down.
/// </summary>
/// <param name="remainingSegments">Remaning number of segments</param>
private void AddBranchGenerator(float segmentLength, int remainingSegments)
{
int ringStartIndex = vertices.Count - 2 * numSides;
int faceIndex = Random.Range(0, numSides - 1);
//Find the normal of the face
int i = ringStartIndex + faceIndex;
int j = (faceIndex < numSides - 1) ? i + 1 : ringStartIndex;
Vector3 normal = MeshHelper.Normal(
vertices[i + numSides],
vertices[j + numSides],
vertices[i]
);
//Only generate if not facing down
if (normal.y > 0)
{
//Find the center of the face
Vector3 l = Vector3.Lerp(vertices[i], vertices[i + numSides], 0.5f);
Vector3 r = Vector3.Lerp(vertices[j], vertices[j + numSides], 0.5f);
Vector3 center = Vector3.Lerp(l, r, 0.5f);
float radius = (l - r).magnitude / 2;
var generator = new BranchGenerator(
tree, mesh, this, center, normal, radius, segmentLength, remainingSegments
);
branchGenerators.Add(generator);
}
}
private GeneratedBranch GenerateBranch(IEntity branchEntity, IEntity sender, Portal portal, IProgress <string> progress)
{
var generator = new BranchGenerator();
var generatedBranch = generator.Generate(_systemContainer, branchEntity, progress);
foreach (Map map in generatedBranch.Maps)
{
_systemContainer.MapSystem.MapCollection.AddMap(map);
}
_systemContainer.ActivitySystem.Pop();
_systemContainer.PositionSystem.SetPosition(sender, portal.Destination);
_systemContainer.EventSystem.Try(EventType.UsePortal, sender, portal);
return(generatedBranch);
}
public override void Generate(ISystemContainer systemContainer, GeneratedBranch generatedBranch, IEntity branch, IRandom random, IProgress <string> progress)
{
progress.Report("Generating random exit portals");
BranchGenerator.PlaceDefaultExitPortal(systemContainer, generatedBranch, random);
}
public override void Generate(ISystemContainer systemContainer, GeneratedBranch generatedBranch, IEntity branch, IRandom random, IProgress<string> progress)
{
progress.Report("Placing stairs");
BranchGenerator.PlaceStairs(systemContainer, generatedBranch, random);
}
