// Generate houses based on noise height value
private void GenerateHouses()
{
int aboveGroundPlaceholderY = 10;
int checkForEveryCoordinates = 50;
float minNoiseHeight = 0.05f;
float[,] noiseMap = GenerateCityNoiseMap(this.mapWidth, this.mapHeight, this.offsets);
for (int y = 0; y < mapHeight; y += checkForEveryCoordinates)
{
for (int x = 0; x < mapWidth; x += checkForEveryCoordinates)
{
// If the current location is within the noisemap position
if (noiseMap[x, y] <= minNoiseHeight)
{
Vector3 position = new Vector3(x + this.offsets.x, aboveGroundPlaceholderY, y + this.offsets.y);
// Get random building index from thhe list of buildings
GameObject building = buildingGenerator.Generate(position);
building.SetActive(false);
// Calculate bounds and calculate the houseposition for the center of the house, also get the correct Y value for the building
Bounds houseBounds = CalculateBounds(building);
Vector3 housePosition = PositionCorrection(position);
Vector3 tilePosition = new Vector3(this.offsets.x, 0, this.offsets.y);
// Get tile and check if it exists before making a house
Tile tile = WorldBuilder.GetTile(tilePosition);
// Check if valid position
if (tile != null && ValidHousePosition(housePosition, houseBounds))
{
building.transform.position = housePosition;
building.SetActive(true);
// Turn house with consistent random numbers
int xRandomIndex = terrainGenerator.RandomNumbers[(x + 1) * (y + 1) * Math.Abs((int)this.offsets.x) % terrainGenerator.RandomNumbers.Length];
int zRandomIndex = terrainGenerator.RandomNumbers[(x + 1) * (y + 1) * Math.Abs((int)this.offsets.y) % (terrainGenerator.RandomNumbers.Length - 1)];
Vector3 lookAtPosition = new Vector3(xRandomIndex, building.transform.position.y, zRandomIndex);
building.transform.LookAt(lookAtPosition);
// Add house to tile
tile.AddBuilding(building);
}
else
{
Destroy(building);
}
}
}
}
}
private SafeMesh GenerateCaveMap(Vector3 offsets)
{
int size = WorldBuilder.CHUNK_SIZE + 1;
Tile currentTile = WorldBuilder.GetTile(offsets);
// Gets added to coordinates, is a decimal to make sure it does not end up at an integer
float addendum = 1000.17777f;
// Coordinates are divided by scale, larger scale = larger/more spread out caves
float scale = 20f;
float[,,] caveMap = new float[size, CAVE_DEPTH * 2, size];
for (int x = 0; x < size; x++)
{
for (int z = 0; z < size; z++)
{
// -5 to make the amount of rocks sticking out of the terrain lower
int coordinateHeight = Mathf.FloorToInt(currentTile.HeightMap[x, z]) - 5;
int caveHeight = coordinateHeight + CAVE_DEPTH;
// Cave height make height dynamic based on heightmap[x,z]
for (int y = 0; y < caveHeight; y++)
{
if (y == 0)
{
caveMap[x, y, z] = 1;
}
else if (y <= 2)
{
double tempVal = ridgedMultifractal.GetValue((z + offsets.z + addendum) / scale, (y + addendum) / scale, (x + offsets.x + addendum) / scale);
int isCave = tempVal < 0 ? 0 : 1;
caveMap[x, y, z] = isCave;
}
else
{
double tempVal = ridgedMultifractal.GetValue((x + offsets.x + addendum) / scale, (y + addendum) / scale, (z + offsets.z + addendum) / scale);
int isCave = tempVal < 0.35 ? 0 : 1;
caveMap[x, y, z] = isCave;
}
}
}
}
SafeMesh safeMesh = MarchingCubes.BuildMesh(caveMap);
safeMesh.position = offsets;
return(safeMesh);
}
private void OnCaveDataReceived(SafeMesh safeMesh)
{
Tile currentTile = WorldBuilder.GetTile(safeMesh.position);
// Check if currentTile is not already unloaded
if (currentTile != null)
{
Mesh mesh = new Mesh();
mesh.vertices = safeMesh.Vertices;
mesh.triangles = safeMesh.Triangles;
currentTile.Cave.MeshFilter.mesh = mesh;
mesh.uv = GenerateUV.CalculateUVs(safeMesh.Vertices, 1);
mesh.RecalculateNormals();
currentTile.Cave.MeshCollider.sharedMesh = mesh;
currentTile.Cave.GameObject.SetActive(true);
}
}
//Generate Decorations based on Perlin noise
public void Generate(float[,] heightMap, Vector3 position)
{
Tile tile = WorldBuilder.GetTile(position);
bool placeTree = true;
float scale = 0.17777f;
for (int y = 0; y < 11; y = y + interval)
{
for (int x = 0; x < 11; x = x + interval)
{
double sampleX = (x + position.x) / scale;
double sampleY = (y + position.z) / scale;
float noiseHeight = (float)(perlin.GetValue(sampleY, 0, sampleX) + 1) / 2;
Biome biome = terrainGenerator.GetBiomeByCoordinates(new Vector2(position.x + x, position.z + y));
if (biome.BiomeType is DefaultBiomeType || biome.BiomeType is ForestBiomeType || biome.BiomeType is PlainsBiomeType || biome.BiomeType is ShrublandBiomeType)
{
if (noiseHeight >= PlantThreshold && noiseHeight <= PlantThreshold + MarginThreshold)
{
Vector3 pos = new Vector3((position.x + x), heightMap[x, y], (position.z + y));
tile.AddDecoration(fractalTree.GeneratePlants(pos, biome.BiomeType));
}
if (noiseHeight >= TreeThreshold && placeTree && noiseHeight <= TreeThreshold + MarginThreshold)
{
int jitterValue = Mathf.RoundToInt((float)(perlin.GetValue(sampleY + terrainGenerator.RandomNumbers[x], 0, sampleX + terrainGenerator.RandomNumbers[y])) * 5);
// Prevent jitterValue to exceed index elemends
if (jitterValue > 5 || jitterValue < -5)
{
jitterValue = 5;
}
Vector3 pos = new Vector3(position.x + 5 + jitterValue, heightMap[5 + jitterValue, 5 + jitterValue], position.z + 5 + jitterValue);
// Check Biome again for Tree Placement
Biome biome2 = terrainGenerator.GetBiomeByCoordinates(new Vector2(pos.x, pos.z));
if (biome2.BiomeType is DefaultBiomeType || biome2.BiomeType is ForestBiomeType || biome2.BiomeType is PlainsBiomeType || biome2.BiomeType is ShrublandBiomeType)
{
tile.AddDecoration(fractalTree.GenerateTree(pos, biome.BiomeType));
placeTree = false;
}
}
}
}
}
}
// When thread is done set all the unity specific values
private void OnTileDataReceived(TileData tileData)
{
Tile currentTile = WorldBuilder.GetTile(tileData.offsets);
// Check to see if the current tile is not already unloaded
if (currentTile != null)
{
Vector2 offsets = new Vector2(tileData.offsets.x, tileData.offsets.z);
Vector2 cityOffsets = new Vector2(tileData.offsets.x - 5, tileData.offsets.z - 5);
currentTile.HeightMap = tileData.heightMap;
caveBuilder.Instantiate(tileData.offsets);
grassMap = new Texture2D(TILE_DIMENSION, TILE_DIMENSION);
splatmapsArray = new Texture2DArray(TILE_DIMENSION, TILE_DIMENSION, 3, TextureFormat.RGBA32, true);
int levelOfDetail = WorldBuilder.GetTile(tileData.offsets).LevelOfDetail;
splatmapsArray.SetPixels(tileData.splatMap1, 0);
splatmapsArray.SetPixels(tileData.splatMap2, 1);
splatmapsArray.SetPixels(tileData.splatMap3, 2);
grassMap.SetPixels(tileData.grassMap);
splatmapsArray.wrapMode = TextureWrapMode.Clamp;
splatmapsArray.Apply();
grassMap.wrapMode = TextureWrapMode.Clamp;
grassMap.Apply();
Material[] matArray = currentTile.Terrain.MeshRenderer.materials;
matArray[0].SetTexture("_SplatMaps", splatmapsArray);
matArray[1].SetTexture("_GrassSplatMap", grassMap);
currentTile.Terrain.MeshRenderer.materials = matArray;
GameObject ocean = currentTile.Ocean.GameObject;
ocean.SetActive(tileData.hasOcean);
MeshData meshData = GenerateMesh(levelOfDetail, tileData.heightMap, false);
SetMesh(meshData.CreateMesh(), currentTile);
currentTile.Terrain.GameObject.SetActive(true);
cityGenerator.Generate(cityOffsets);
decorationGenerator.Generate(tileData.heightMap, tileData.offsets);
}
}
