public TilePaint(Tile tile)
{
_tile = tile;
//Get biome combiner from terraconfig
Combiner = TerraConfig.Instance.Graph.GetBiomeCombiner();
_resolution = TerraConfig.Instance.Generator.SplatmapResolution - 1;
_gridPosition = _tile.GridPosition;
_terrain = _tile.GetComponent <UnityEngine.Terrain>();
if (_terrain == null)
{
Debug.LogError("TilePaint's passed Tile must have an attached Terrain component");
}
}
public BiomeCombinerSampler(BiomeCombinerNode combiner)
{
_combiner = combiner;
}
/// <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.Combiner
.GetConnectedBiomeNodes()
.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;
BiomeCombinerNode combiner = _painter.Combiner;
BiomeNode[] biomeNodes = combiner.GetConnectedBiomeNodes();
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)
{
float[] biomeWeights = combiner.Sampler.GetBiomeWeightsInterpolated(_biomeMap, sample.x, sample.y);
if (iterations > coroutineRes)
{
iterations = 0;
yield return(null);
}
if (biomeWeights[i] < DETAIL_SHOW_THRESHHOLD)
{
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++;
}
}
}
/// <summary>
/// Adds all non-tree details to the Terrain according to the
/// <see cref="_biomeMap"/> in this <see cref="Tile"/>. This adds
/// grass and detail meshes.
/// </summary>
public IEnumerator AddDetailLayers()
{
BiomeCombinerNode combiner = _painter.Combiner;
BiomeNode[] biomeNodes = combiner.GetConnectedBiomeNodes();
int res = TerraConfig.Instance.Generator.DetailmapResolution;
//Collect prototypes
GrassDetailNode[] allDetailNodes = biomeNodes
.SelectMany(bn => bn.GetGrassInputs())
.ToArray();
List <DetailPrototype> prototypes = new List <DetailPrototype>(allDetailNodes.Length);
foreach (GrassDetailNode detailNode in allDetailNodes)
{
prototypes.Add((DetailPrototype)detailNode.GetDetailPrototype());
}
int coroutineRes = TerraConfig.Instance.Generator.CoroutineRes;
int iterations = 0;
int prototypeIndex = 0;
GenerationData conf = TerraConfig.Instance.Generator;
_terrain.terrainData.SetDetailResolution(res, 16);
_terrain.terrainData.detailPrototypes = prototypes.ToArray();
_terrain.detailObjectDistance = conf.DetailDistance;
_terrain.detailObjectDensity = conf.DetailDensity;
for (int i = 0; i < biomeNodes.Length; i++)
{
//Collect all details for this biome
BiomeNode biome = biomeNodes[i];
GrassDetailNode[] grassNodes = biome.GetGrassInputs();
if (grassNodes.Length == 0) //A biome may contain no grass nodes
{
continue;
}
foreach (GrassDetailNode grassNode in grassNodes)
{
int[,] layer = new int[res, res];
//Get map of normalized placement positions
Vector2[] samples = null;
if (!TerraConfig.Instance.IsEditor)
{
bool isDone = false;
GrassDetailNode node = grassNode;
TerraConfig.Instance.Worker.Enqueue(() => samples = node.SamplePositions(_tile.Random), () => isDone = true);
while (!isDone)
{
yield return(null);
}
}
else
{
samples = grassNode.SamplePositions(_tile.Random);
}
foreach (Vector2 sample in samples)
{
iterations++;
if (iterations > coroutineRes)
{
iterations = 0;
yield return(null);
}
float[] biomeWeights = combiner.Sampler.GetBiomeWeightsInterpolated(_biomeMap, sample.x, sample.y);
if (biomeWeights[i] < DETAIL_SHOW_THRESHHOLD)
{
continue; //Not in this biome, skip
}
//Check whether an object 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 (grassNode.ShouldPlaceAt(world.x, world.y, height, angle))
{
//Convert normalized x,y coordinates to positions in layer map
Vector2 sampleWorld = sample * res;
int x = Mathf.Clamp(Mathf.RoundToInt(sampleWorld.x), 0, res - 1);
int y = Mathf.Clamp(Mathf.RoundToInt(sampleWorld.y), 0, res - 1);
layer[y, x] = 1; //Display object here
}
}
_terrain.terrainData.SetDetailLayer(0, 0, prototypeIndex, layer);
prototypeIndex++;
}
}
}