/// <summary>
/// Generates a chunk by getting an array of heights then placing blocks of varying types up to that height
/// then it adds trees (leaves first then trunk)
///
/// </summary>
/// <returns>The chunk.</returns>
/// <param name="position">Position.</param>
public Chunk GenerateChunk(Coordinates2D position)
{
// TODO: Add Ores
// TODO: Add Caves
int trees = new Random().Next(0, 10);
int[,] heights = new int[16, 16];
int[,] treeBasePositions = new int[trees, 2];
for (int t = 0; t < trees; t++)
{
treeBasePositions[t, 0] = new Random().Next(1, 16);
treeBasePositions[t, 1] = new Random().Next(1, 16);
}
//Make a new Chunk
var chunk = new Chunk(position);
//Loop through all the blocks in the chunk
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
int height = GetHeight(chunk.X * Chunk.Width + x, chunk.Z * Chunk.Depth + z);
for (int y = 0; y < height; y++)
{
if (y == 0) // if at the bottom then set block to bedrock
chunk.SetBlockId(new Coordinates3D(x, y, z), 7);
else if (y < height - 1) // if not at the top set the block to dirt or stone depending on height
{
if (!(y < (height / 4) * 3))
chunk.SetBlockId(new Coordinates3D(x, y, z), 3);
else
chunk.SetBlockId(new Coordinates3D(x, y, z), 1);
}
else if (y < waterLevel) // if below the water set to sand or clay
{
if (new Random().Next(1, 40) < 5 && y < waterLevel - 4)
chunk.SetBlockId(new Coordinates3D(x, y, z), 82);
else
chunk.SetBlockId(new Coordinates3D(x, y, z), 12);
}
else
{
// otherwise set the block to grass or gravel rarely
chunk.SetBlockId(new Coordinates3D(x, y, z), 2);
}
chunk.SetBiome((byte)x, (byte)z, Biome.ExtremeHills);
if (y < waterLevel + 17)
chunk.SetBiome((byte)x, (byte)z, Biome.ExtremeHillsEdge);
if (y < waterLevel + 10)
chunk.SetBiome((byte)x, (byte)z, Biome.Beach);
}
heights[x, z] = height;
//create beaches and place water
if (height <= waterLevel)
{
for (int w = 0; w < waterLevel - 3; w++)
{
if (chunk.GetBlockId(new Coordinates3D(x, w, z)) == 0)
{
chunk.SetBlockId(new Coordinates3D(x, w, z), 8);
}
}
}
// Generate colour of the wood and leaves
int woodColor = new Random().Next(1, 3);
if (woodColor == 1)
woodColor = 0;
// Generate trees
for (int pos = 0; pos < trees; pos++)
{
int random = new Random().Next(3, 4);
int treeBase = heights[treeBasePositions[pos, 0], treeBasePositions[pos, 1]];//chunk.GetHeight((byte)treeBasePositions[pos, 0], (byte)treeBasePositions[pos, 1]);
if (treeBasePositions[pos, 0] < 14 && treeBasePositions[pos, 0] > 4 && treeBasePositions[pos, 1] < 14 && treeBasePositions[pos, 1] > 4)
{
if (treeBase < waterLevel + 10)
break;
int leafwidth = 4;
for (int layer = 0; layer <= height; layer++)
{
for (int w = 0; w <= leafwidth; w++)
{
for (int l = 0; l <= leafwidth; l++)
{
chunk.SetBlockId(new Coordinates3D(treeBasePositions[pos, 0] - (leafwidth / 2) + w, treeBase + layer + random, treeBasePositions[pos, 1] - (leafwidth / 2) + l), 18);
chunk.SetMetadata(new Coordinates3D(treeBasePositions[pos, 0] - (leafwidth / 2) + w, treeBase + layer + random, treeBasePositions[pos, 1] - (leafwidth / 2) + l), (byte)woodColor);
}
}
leafwidth -= 1;
}
for (int t = 0; t <= (random + 2); t++)
{
chunk.SetBlockId(new Coordinates3D(treeBasePositions[pos, 0], treeBase + t, treeBasePositions[pos, 1]), 17);
chunk.SetMetadata(new Coordinates3D(treeBasePositions[pos, 0], treeBase + t, treeBasePositions[pos, 1]), (byte)woodColor);
}
}
}
}
}
return chunk;
}
public Chunk GenerateChunk(Coordinates2D position)
{
var chunk = new Chunk(position);
int y = 0;
for (int i = 0; i < Layers.Count; i++)
{
int height = y + Layers[i].Height;
while (y < height)
{
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
chunk.SetBlockId(new Coordinates3D(x, y, z), Layers[i].BlockId);
chunk.SetMetadata(new Coordinates3D(x, y, z), Layers[i].Metadata);
}
}
y++;
}
}
for (int i = 0; i < chunk.Biomes.Length; i++)
chunk.Biomes[i] = (byte)Biome;
return chunk;
}