public void Generate(int chunkX, int chunkZ)
{
// Vertices are shared
Vector3 renderOffset = new Vector3(chunkX * chunkSize * cellSize, 0, chunkZ * chunkSize * cellSize);
vertices = new Vector3[chunkSize * chunkSize * 4];
uvs = new Vector2[vertices.Length];
triangles = new int[chunkSize * chunkSize * 6];
int v = 0;
int t = 0;
float vertexOffset = cellSize * 0.5f; // Multiplication is not as intensive as division.
for (int cellX = 0; cellX < chunkSize; cellX++)
{
for (int cellZ = 0; cellZ < chunkSize; cellZ++)
{
Vector3 cellOffset = new Vector3(cellX * cellSize, 0, cellZ * cellSize);
vertices[v] = new Vector3(-vertexOffset, 0, -vertexOffset) + cellOffset + renderOffset;
vertices[v + 1] = new Vector3(-vertexOffset, 0, vertexOffset) + cellOffset + renderOffset;
vertices[v + 2] = new Vector3(vertexOffset, 0, -vertexOffset) + cellOffset + renderOffset;
vertices[v + 3] = new Vector3(vertexOffset, 0, vertexOffset) + cellOffset + renderOffset;
triangles[t] = v;
triangles[t + 1] = triangles[t + 4] = v + 1;
triangles[t + 2] = triangles[t + 3] = v + 2;
triangles[t + 5] = v + 3;
v += 4;
t += 6;
}
}
// UVs
Vector2[] dirt1 = SpriteLoader.GetTileUVs("Dirt_0");
Vector2[] dirt2 = SpriteLoader.GetTileUVs("Dirt_1");
Vector2[] water1 = SpriteLoader.GetTileUVs("Water_0");
int k = 0;
for (int g = 0; g < vertices.Length / 4; g++)
{
float groundNoise = amplitude * Mathf.PerlinNoise(seed + (g / freqX), seed + (g / freqZ));
float riverNoise = amplitude * Mathf.PerlinNoise(seed + (g / freqX * 2), seed + (g / freqZ * 2));
if (riverNoise <= 0.3f)
{
for (int i = 0; i < water1.Length; i++)
{
uvs[i + k] = water1[i];
}
}
if (groundNoise < 0.5f)
{
for (int i = 0; i < dirt1.Length; i++)
{
uvs[i + k] = dirt1[i];
}
}
else
{
for (int i = 0; i < dirt2.Length; i++)
{
uvs[i + k] = dirt2[i];
}
}
k += 4;
}
UpdateMesh();
InstantiateEntities(chunkX, chunkZ);
}
