public void GetChunk(int x, int y, int z, VoxelVolume chunk)
{
if (!started)
{
Init();
started = true;
}
//for (var xx = 0; xx < ChunkManager.CHUNK_SIZE; xx++)
// for (var zz = 0; zz < ChunkManager.CHUNK_SIZE; zz++)
// chunk[xx, 0, zz] = 0xffffff;
//chunk[0, 1, 0] = 0xffffff;
//chunk[0, 1, 1] = 0xffffff;
//chunk[0, 1, 2] = 0xffffff;
//chunk[0, 1, 3] = 0xffffff;
////chunk[1, 2, 1] = 0xffffff;
////chunk[1, 2, 2] = 0xffffff;
////chunk[2, 2, 2] = 0xffffff;
////chunk[1, 0, 1] = 0xffffff;
////chunk[1, 0, 2] = 0xffffff;
////chunk[2, 0, 2] = 0xffffff;
//return;
bool addCaves = false; // (bool)m.GetOption("DefaultGenCaves");
bool addCaveLava = false; // (bool)m.GetOption("DefaultGenLavaCaves");
int ChunkSize = Constants.CHUNK_SIZE;// m.GetChunkSize();
x *= ChunkSize;
y *= ChunkSize;
z *= ChunkSize;
int chunksize = ChunkSize;
var noise = new FastNoise();
noise.Frequency = 0.01;
for (int xx = 0; xx < chunksize; xx++)
{
for (int yy = 0; yy < chunksize; yy++)
{
int currentHeight = (byte)((finalTerrain.GetValue((xx + x) / 100.0f, 0, (yy + y) / 100.0f) * 60) + 64);
int ymax = currentHeight;
int biome = (int)(BiomeSelect.GetValue((x + xx) / 100.0f, 0, (y + yy) / 100.0f) * 2); //MD * 2
uint toplayer = BLOCK_DIRT;
if (biome == 0)
{
toplayer = BLOCK_DIRT;
}
if (biome == 1)
{
toplayer = BLOCK_SAND;
}
if (biome == 2)
{
toplayer = BLOCK_DIRT;
}
if (biome == 3)
{
toplayer = BLOCK_DIRT;
}
if (biome == 4)
{
toplayer = BLOCK_DIRT;
}
if (biome == 5)
{
toplayer = BLOCK_CLAY;
}
int stoneHeight = (int)currentHeight - ((64 - (currentHeight % 64)) / 8) + 1;
if (ymax < seaLevel)
{
ymax = seaLevel;
}
ymax++;
if (ymax > z + chunksize - 1)
{
ymax = z + chunksize - 1;
}
for (int bY = z; bY <= ymax; bY++)
{
uint curBlock = 0;
// Place bedrock
if (bY == 0)
{
curBlock = BLOCK_BEDROCK;
}
else if (bY < currentHeight)
{
if (bY < stoneHeight)
{
curBlock = BLOCK_STONE;
// Add caves
if (addCaves)
{
if (caveNoise.GetValue((x + xx) / 4.0f, (bY) / 1.5f, (y + yy) / 4.0f) > cavestreshold)
{
if (bY < 10 && addCaveLava)
{
curBlock = BLOCK_LAVA;
}
else
{
curBlock = BLOCK_AIR;
}
}
}
}
else
{
curBlock = toplayer;
}
}
else if ((currentHeight + 1) == bY && bY > seaLevel && biome == 3)
{
curBlock = BLOCK_SNOW;
continue;
}
else if ((currentHeight + 1) == bY && bY > seaLevel + 1)
{
if (biome == 1 || biome == 0)
{
continue;
}
double f = flowers.GetValue(x + xx / 10.0f, 0, y + yy / 10.0f);
if (f < -0.999)
{
curBlock = BLOCK_RED_ROSE;
}
else if (f > 0.999)
{
curBlock = BLOCK_YELLOW_FLOWER;
}
else if (f < 0.001 && f > -0.001)
{
curBlock = BLOCK_PUMPKIN;
}
}
else if (currentHeight == bY)
{
if (bY == seaLevel || bY == seaLevel - 1 || bY == seaLevel - 2)
{
curBlock = BLOCK_SAND; // FF
}
else if (bY < seaLevel - 1)
{
curBlock = BLOCK_GRAVEL; // FF
}
else if (toplayer == BLOCK_DIRT)
{
curBlock = BLOCK_GRASS;
}
else
{
curBlock = toplayer; // FF
}
}
else
{
if (bY <= seaLevel)
{
curBlock = BLOCK_WATER; // FF
}
else
{
curBlock = BLOCK_AIR; // FF
}
if (bY == seaLevel && biome == 3)
{
curBlock = BLOCK_ICE;
}
}
//var idx = xx + chunksize * ((yy) + chunksize * (bY - z));
chunk[xx, bY - z, yy] = curBlock;
//chunk[idx] = curBlock;
//chunk[m.Index3d(xx, yy, bY - z, chunksize, chunksize)] = curBlock;
}
}
}
}
public static int ExtractMesh(VoxelVolume volume, bool disableGreedyMeshing = false, bool disableAO = false)
{
volume.PrepareMesh();
VertexPositionColorNormal[] vertices = new VertexPositionColorNormal[5];
var dims = volume.dims;
var f = new Func<int, int, int, uint>((i, j, k) =>
{
if (i < 0 || j < 0 || k < 0 || i >= dims[0] || j >= dims[1] || k >= dims[2])
return volume.GetRelativeVoxel(i, j, k);
//return cm.GetVoxelByRelative(volume.X, volume.Y, volume.Z, i, j, k);
var r = volume[i + dims[0] * (j + dims[1] * k)];
if (r > 0 && (r & 0x1000000u) > 0u)
{
r = 0;
}
return r;
});
//Sweep over 3-axes
// d0 = x, d1 = y, d2 = z
for (var d = 0; d < 3; ++d)
{
int i, j, k, l, w, h
, u = (d + 1) % 3
, v = (d + 2) % 3;
int[] x = { 0, 0, 0 };
int[] q = { 0, 0, 0 };
int[,] posArea = { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } };
int[,] negArea = { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } };
if (mask.Length < dims[u] * dims[v])
{
mask = new uint[dims[u] * dims[v]];
maskLayout = new MaskLayout[dims[u] * dims[v]];
}
q[d] = 1;
posArea[0, u] = -1;
posArea[1, v] = -1;
posArea[2, u] = 1;
posArea[3, v] = 1;
negArea[0, v] = -1;
negArea[1, u] = -1;
negArea[2, v] = 1;
negArea[3, u] = 1;
for (x[d] = -1; x[d] < dims[d]; )
{
//Compute mask
var n = 0;
for (x[v] = 0; x[v] < dims[v]; ++x[v])
{
for (x[u] = 0; x[u] < dims[u]; ++x[u], ++n)
{
var a = f(x[0], x[1], x[2]);
var b = f(x[0] + q[0], x[1] + q[1], x[2] + q[2]);
maskLayout[n].data = 0u;
if ((a != 0) == (b != 0))
{
mask[n] = 0;
}
else if (a != 0)
{
mask[n] = x[d] > -1 ? a : 0;
maskLayout[n].BackFace = false;
}
else
{
mask[n] = x[d] < dims[d] - 1 ? b : 0;
maskLayout[n].BackFace = true;
}
if (disableAO || mask[n] == 0)
{
//maskLayout[n].data = 4095u;
}
else
{
uint side1 = 0, side2 = 0, corner = 0;
var neighbors = new uint[4];
for (var t = 0; t < 4; ++t)
{
var tt = (t + 1) % 4;
if (a != 0)
{
side1 = (f(x[0] + q[0] + posArea[t, 0], x[1] + q[1] + posArea[t, 1], x[2] + q[2] + posArea[t, 2]) > 0u ? 1u : 0u);
side2 = (f(x[0] + q[0] + posArea[tt, 0], x[1] + q[1] + posArea[tt, 1], x[2] + q[2] + posArea[tt, 2]) > 0u ? 1u : 0u);
}
else
{
side1 = (f(x[0] + negArea[t, 0], x[1] + negArea[t, 1], x[2] + negArea[t, 2]) > 0u ? 1u : 0u);
side2 = (f(x[0] + negArea[tt, 0], x[1] + negArea[tt, 1], x[2] + negArea[tt, 2]) > 0u ? 1u : 0u);
}
if (side1 > 0 && side2 > 0)
{
neighbors[t] = 0;
}
else
{
if (a != 0)
{
corner = (f(x[0] + q[0] + posArea[t, 0] + posArea[tt, 0], x[1] + q[1] + posArea[t, 1] + posArea[tt, 1], x[2] + q[2] + posArea[t, 2] + posArea[tt, 2]) > 0u ? 1u : 0u);
}
else
{
corner = (f(x[0] + negArea[t, 0] + negArea[tt, 0], x[1] + negArea[t, 1] + negArea[tt, 1], x[2] + negArea[t, 2] + negArea[tt, 2]) > 0u ? 1u : 0u);
}
neighbors[t] = 3u - (side1 + side2 + corner);
}
maskLayout[n].SetOcclusion(t, neighbors[t]);
}
uint a00 = neighbors[1],
a01 = neighbors[2],
a11 = neighbors[3],
a10 = neighbors[0];
//if (a00 + a01 + a11 + a10 != 12)
// maskLayout[n].AOFace = true;
}
}
}
//Increment x[d]
++x[d];
//Generate mesh for mask using lexicographic ordering
n = 0;
for (j = 0; j < dims[v]; ++j)
{
for (i = 0; i < dims[u]; )
{
var c = mask[n];
if (c != 0)
{
var a = maskLayout[n];
if (disableGreedyMeshing || a.AOFace)
{
w = 1;
h = 1;
}
else
{
//Compute width
for (w = 1; c == mask[n + w] && (a.data == (maskLayout[n + w].data)) && i + w < dims[u]; ++w)
{
}
//Compute height (this is slightly awkward
var done = false;
for (h = 1; j + h < dims[v]; ++h)
{
for (k = 0; k < w; ++k)
{
if (c != mask[n + k + h * dims[u]] || a.data != maskLayout[n + k + h * dims[u]].data)
{
done = true;
break;
}
}
if (done)
{
break;
}
}
}
//Add quad
x[u] = i; x[v] = j;
int[] du = { 0, 0, 0 };
int[] dv = { 0, 0, 0 };
var normal = new Vector3(q[0], q[1], q[2]);
var aoFace = maskLayout[n].AOFace;
if (!maskLayout[n].BackFace)
{
dv[v] = h;
du[u] = w;
}
else
{
du[v] = h;
dv[u] = w;
normal = -normal;
}
var cr = ((c >> 16) & 0xff) / 255f;
var cg = ((c >> 8) & 0xff) / 255f;
var cb = (c & 0xff) / 255f;
var ao = 0f;
var AOcurve = new float[] { 0.45f, 0.65f, 0.85f, 1.0f };
var auCurveFactor = new float[] { 1f, 0.99f, 0.98f, 0.97f, 0.96f };
var aoFactor = auCurveFactor[maskLayout[n].TotalOcclusion()];
for (var o = 0; o < 4; ++o)
{
var pao = disableAO ? 1f : AOcurve[maskLayout[n].GetOcclusion(o)];
//vertices[o].Color = new Color(cr * pao, cg * pao, cb * pao);
vertices[o].Color = new Color(cr * aoFactor, cg * aoFactor, cb * aoFactor);
vertices[o].Normal = normal;
ao += pao;
}
ao /= 4f;
if (aoFace)
{
vertices[0].Position = new Vector3(x[0], x[1], x[2]);
vertices[1].Position = new Vector3(x[0] + du[0], x[1] + du[1], x[2] + du[2]);
vertices[2].Position = new Vector3(x[0] + du[0] + dv[0], x[1] + du[1] + dv[1], x[2] + du[2] + dv[2]);
vertices[3].Position = new Vector3(x[0] + dv[0], x[1] + dv[1], x[2] + dv[2]);
vertices[4].Position = (vertices[0].Position + vertices[1].Position + vertices[2].Position + vertices[3].Position) / 4;
vertices[4].Normal = normal;
vertices[4].Color = new Color(cr * ao, cg * ao, cb * ao);
}
else
{
vertices[0].Position = new Vector3(x[0], x[1], x[2]);
vertices[1].Position = new Vector3(x[0] + du[0], x[1] + du[1], x[2] + du[2]);
vertices[2].Position = new Vector3(x[0] + du[0] + dv[0], x[1] + du[1] + dv[1], x[2] + du[2] + dv[2]);
vertices[3].Position = new Vector3(x[0] + dv[0], x[1] + dv[1], x[2] + dv[2]);
}
var v0 = (ushort)volume.opaqueMesh.Add(vertices[0]);
var v1 = (ushort)volume.opaqueMesh.Add(vertices[1]);
var v2 = (ushort)volume.opaqueMesh.Add(vertices[2]);
var v3 = (ushort)volume.opaqueMesh.Add(vertices[3]);
if (aoFace)
{
var v4 = (ushort)volume.opaqueMesh.Add(vertices[4]);
volume.opaqueMesh.Triangle(v0, v4, v1);
volume.opaqueMesh.Triangle(v1, v4, v2);
volume.opaqueMesh.Triangle(v2, v4, v3);
volume.opaqueMesh.Triangle(v3, v4, v0);
}
else
{
volume.opaqueMesh.Quad(v0, v1, v2, v3);
}
//Zero-out mask
for (l = 0; l < h; ++l)
{
for (k = 0; k < w; ++k)
{
mask[n + k + l * dims[u]] = 0;
maskLayout[n + k + l * dims[u]].data = 4095u;
}
}
//Increment counters and continue
i += w; n += w;
}
else
{
++i; ++n;
}
}
}
}
}
volume.opaqueMesh.Update();
return volume.opaqueMesh.VertexCount;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
instance = this;
base.Initialize();
_chunkManager = new ChunkManager(this.GraphicsDevice);
//var data = new uint[3 * 3 *3];
//for(var i =0;i < data.Length;i++){
// if((i % 4) == 0)
// data[i] = 0xffffff;
//}
//_volume = new Volume(_chunkManager, 0, 0, 0, data, new Dimensions(new int[] { 3, 3, 3 }));
sceneCamera = new Camera(this.GraphicsDevice);
//float tilt = MathHelper.ToRadians(0); // 0 degree angle
//// Use the world matrix to tilt the cube along x and y axes.
//worldMatrix = Matrix.CreateRotationX(tilt) * Matrix.CreateRotationY(tilt);
//viewMatrix = Matrix.CreateLookAt(new Vector3(zoom, zoom, zoom), Vector3.Zero, Vector3.Up);
//projectionMatrix = Matrix.CreatePerspectiveFieldOfView(
// MathHelper.ToRadians(45), // 45 degree angle
// (float)GraphicsDevice.Viewport.Width /
// (float)GraphicsDevice.Viewport.Height,
// 1.0f, 10000.0f);
basicEffect = new BasicEffect(graphics.GraphicsDevice);
basicEffect.World = Matrix.Identity;
basicEffect.View = Matrix.Identity;
basicEffect.Projection = sceneCamera.Projection;
// primitive color
basicEffect.AmbientLightColor = new Vector3(0.1f, 0.1f, 0.1f);
basicEffect.DiffuseColor = new Vector3(1.0f, 1.0f, 1.0f);
basicEffect.SpecularColor = new Vector3(0.25f, 0.25f, 0.25f);
basicEffect.SpecularPower = 5.0f;
basicEffect.Alpha = 1.0f;
basicEffect.VertexColorEnabled = true;
//basicEffect.FogEnabled = true;
//basicEffect.FogColor = new Vector3(0, 0, 0);
//basicEffect.FogStart = 10;
//basicEffect.FogEnd = 100;
wireFrame = new BasicEffect(graphics.GraphicsDevice);
wireFrame.World = Matrix.Identity;
wireFrame.View = Matrix.Identity;
wireFrame.Projection = sceneCamera.Projection;
// primitive color
wireFrame.AmbientLightColor = new Vector3(0.1f, 0.1f, 0.1f);
wireFrame.DiffuseColor = new Vector3(1.0f, 1.0f, 1.0f);
wireFrame.SpecularColor = new Vector3(0.25f, 0.25f, 0.25f);
wireFrame.SpecularPower = 5.0f;
wireFrame.Alpha = 1.0f;
wireFrame.VertexColorEnabled = false;
wireFrame.LightingEnabled = true;
basicEffect.LightingEnabled = true;
if (basicEffect.LightingEnabled)
{
basicEffect.DirectionalLight0.Enabled = true; // enable each light individually
if (basicEffect.DirectionalLight0.Enabled)
{
// x direction
basicEffect.AmbientLightColor = new Vector3(1, 1, 1);
basicEffect.DirectionalLight0.DiffuseColor = new Vector3(0.1f, 0.1f, 0.1f); // range is 0 to 1
basicEffect.DirectionalLight0.Direction = Vector3.Normalize(new Vector3(-0.25f, -1, -0.5f));
// points from the light to the origin of the scene
basicEffect.DirectionalLight0.SpecularColor = Vector3.Zero;
//basicEffect.DirectionalLight0.SpecularColor = Vector3.One;
}
}
mouseState = Mouse.GetState();
keyboardState = Keyboard.GetState();
//_chunkManager.Initialize();
var generator = new DefaultWorldGenerator();
world = new World(GraphicsDevice, 192, 128);
world.Generate(generator);
arialFont = Content.Load<SpriteFont>("fonts/arial");
voxelEffect = Content.Load<Effect>("shaders/voxelshader");
selection = new VoxelVolume(this.GraphicsDevice, new Dimensions(new int[] { world.Size, 1, world.Size }));
}
