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public IEnumerator AddTrees() | |
{ | |
ClearTrees(); | |
int height = _terrain.terrainData.heightmapWidth; | |
int width = _terrain.terrainData.heightmapWidth; | |
float[,] heights = _terrain.terrainData.GetHeights(0, 0, width, height); | |
float[, ,] map = _terrain.terrainData.GetAlphamaps(0, 0, width - 1, height - 1); | |
Perlin perlin = new Perlin(); | |
perlin.Seed = seed; | |
Noise2D noisePlane = new Noise2D(width, height, perlin); | |
noisePlane.GeneratePlanar(0, 1, 0, 1); | |
float[,] noiseData = noisePlane.GetData(); | |
System.Random rand = new System.Random(seed); | |
int treesThisFrame = 0; | |
int totalTrees = 0; | |
trees = new List<Vector3>(); | |
for (int x = 0; x < width - 1; x++) | |
{ | |
for (int y = 0; y < height - 1; y++) | |
{ | |
float Locheight = heights[x, y]; | |
float mapVal = map[y, x, 0]; | |
float noiseVal = noiseData[x, y]; | |
/*if (x == y) | |
{ | |
Vector3 treePos = new Vector3(x / (float)width, 0, y / (float)height); | |
TreeInstance ti = new TreeInstance(); | |
ti.prototypeIndex = 0; | |
ti.heightScale = 1.0f; | |
ti.widthScale = 1.0f; | |
ti.color = Color.white; | |
ti.position = new Vector3(x / (float)width, 0, y / (float)height); | |
_terrain.AddTreeInstance(ti); | |
trees.Add(treePos); | |
treesThisFrame++; | |
totalTrees++; | |
}*/ | |
if (mapVal == 1) | |
{ | |
int treeScarcity = 100; | |
if (noiseVal >= 0 && noiseVal <= 1) | |
{ | |
treeScarcity = 80; | |
} | |
else if (noiseVal >= 1 && noiseVal <= 2) | |
{ | |
treeScarcity = 85; | |
} | |
else | |
{ | |
treeScarcity = 90; | |
} | |
if (rand.Next(0, 100) >= treeScarcity) | |
{ | |
TreeInstance ti = new TreeInstance(); | |
ti.prototypeIndex = 0; | |
ti.heightScale = 1.0f; | |
ti.widthScale = 1.0f; | |
ti.color = Color.white; | |
ti.position = new Vector3(x / (float)width, 0, y / (float)height); | |
_terrain.AddTreeInstance(ti); | |
treesThisFrame++; | |
totalTrees++; | |
} | |
} | |
} | |
if (x % 10 == 0) | |
{ | |
Debug.Log("Added " + treesThisFrame + " trees this frame."); | |
treesThisFrame = 0; | |
yield return new WaitForEndOfFrame(); | |
} | |
} | |
Debug.Log("Added " + totalTrees + " trees in total."); | |
} |
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