private TreePrototype[] GetTreePrototypes()
{
var treePrototypes = new TreePrototype[_vegetationData.Count];
for (var i = 0; i < _vegetationData.Count; i++)
{
var item = _vegetationData.GetObjectAt(i);
treePrototypes[i] = new TreePrototype
{
prefab = item.Mesh
};
}
return(treePrototypes);
}
private void PlaceTrees(List <Vector3> placementPositions, TerrainLookup terrainLookup)
{
var treeInstances = new Dictionary <Terrain, List <TreeInstance> >();
for (var i = 0; i < placementPositions.Count; i++)
{
var terrain = terrainLookup.GetTerrain(placementPositions[i]);
var treePositionOnTerrain = GetTreePosition(terrain, placementPositions[i]);
var protoIndex = UnityEngine.Random.Range(0,
_vegetationData.Count); //TODO: Added Weighted Probability based on Tree Probability value - Risul
var treeInstance = _vegetationData.GetObjectAt(protoIndex);
if (treeInstances.TryGetValue(terrain, out var trees) == false)
{
trees = new List <TreeInstance>();
treeInstances.Add(terrain, trees);
}
var proportionalScale = UnityEngine.Random.Range(treeInstance.MinScale, treeInstance.MaxScale);
var tree = new TreeInstance
{
position = treePositionOnTerrain,
rotation = UnityEngine.Random.Range(treeInstance.MinRotation,
treeInstance.MaxRotation),
prototypeIndex = protoIndex,
color = Color.Lerp(treeInstance.Color1,
treeInstance.Color2, UnityEngine.Random.Range(0, 1)),
lightmapColor = treeInstance.LightColor,
heightScale = proportionalScale,
widthScale = proportionalScale
};
trees.Add(tree);
}
foreach (var treesPerTerrain in treeInstances)
{
treesPerTerrain.Key.terrainData.treeInstances = treesPerTerrain.Value.ToArray();
}
}