public static void Show(TreeNodeEditor treeNode)
{
EditorGUI.BeginChangeCheck();
TreeDetailNode treeDetail = treeNode.TreeDetailNode;
treeDetail.Prefab = (GameObject)
EditorGUILayout.ObjectField(new GUIContent("Tree"), treeDetail.Prefab, typeof(GameObject), false);
Show(treeDetail, () => {
treeDetail.RandomRotation = EditorGUILayout.Toggle("Random Rotation", treeDetail.RandomRotation);
treeDetail.BendFactor = EditorGUILayout.FloatField("Bend Factor", treeDetail.BendFactor);
});
if (EditorGUI.EndChangeCheck())
{
treeNode.serializedObject.ApplyModifiedProperties();
}
}
/// <summary>
/// Adds trees according to the <see cref="_biomeMap"/> in
/// this <see cref="Tile"/>
/// </summary>
public IEnumerator AddTrees()
{
if (_biomeMap == null)
{
yield break;
}
//Collect prototypes from tree nodes
TreeDetailNode[] allTreeNodes = _painter.Biomes
.SelectMany(biome => biome.GetTreeInputs())
.ToArray();
List <TreePrototype> prototypes = new List <TreePrototype>(allTreeNodes.Length);
foreach (TreeDetailNode treeNode in allTreeNodes)
{
prototypes.Add((TreePrototype)treeNode.GetDetailPrototype());
}
int coroutineRes = TerraConfig.Instance.Generator.CoroutineRes;
int iterations = 0;
GenerationData conf = TerraConfig.Instance.Generator;
_terrain.terrainData.treePrototypes = prototypes.ToArray();
_terrain.terrainData.RefreshPrototypes();
_terrain.treeDistance = conf.TreeDistance;
_terrain.treeBillboardDistance = conf.BillboardStart;
_terrain.treeMaximumFullLODCount = conf.MaxMeshTrees;
BiomeNode[] biomeNodes = _painter.Biomes;
int prototypeIndex = 0;
for (int i = 0; i < biomeNodes.Length; i++)
{
//Collect all trees for this biome
BiomeNode biome = biomeNodes[i];
TreeDetailNode[] treeNodes = biome.GetTreeInputs();
if (treeNodes.Length == 0) //A biome may contain no trees
{
continue;
}
foreach (TreeDetailNode treeNode in treeNodes)
{
//Get map of normalized "tree positions"
Vector2[] samples = null;
if (!TerraConfig.Instance.IsEditor)
{
bool isDone = false;
TreeDetailNode node = treeNode;
TerraConfig.Instance.Worker.Enqueue(() => samples = node.SamplePositions(_tile.Random), () => isDone = true);
while (!isDone)
{
yield return(null);
}
}
else
{
samples = treeNode.SamplePositions(_tile.Random);
}
foreach (Vector2 sample in samples)
{
int selectedBiome = _sampler.GetBiomeAtInterpolatedCoords(_biomeMap, sample.x, sample.y);
if (iterations > coroutineRes)
{
iterations = 0;
yield return(null);
}
if (selectedBiome != i)
{
continue; //Not in this biome, skip
}
//Check whether a tree can be placed here
float amp = TerraConfig.Instance.Generator.Amplitude;
float height = _terrain.terrainData.GetInterpolatedHeight(sample.x, sample.y) / amp;
float angle = Vector3.Angle(Vector3.up, _terrain.terrainData.GetInterpolatedNormal(sample.x, sample.y)) / 90;
Vector2 world = MathUtil.NormalToWorld(_tile.GridPosition, sample);
if (treeNode.ShouldPlaceAt(world.x, world.y, height, angle))
{
//Add tree to terrain
Vector3 treeLoc = new Vector3(sample.x, height, sample.y);
//Tree sample set index matches the tree prototype index (j)
TreeInstance tree = treeNode.GetTreeInstance(treeLoc, prototypeIndex, _tile.Random);
_terrain.AddTreeInstance(tree);
}
}
prototypeIndex++;
}
}
}