public TerrainBlock(Terrain terrain, int depth, GraphicsDevice GraphicsDevice, Effect effect, PlanetBlock planetBlock,
Planet.GetNeighbourDelegate method, Point location,TerrainBlock parent, Vector3 blockOffset = new Vector3())
{
this.GraphicsDevice = GraphicsDevice;
this.effect = effect;
this.depth = depth;
this.planet = true;
this.waterSphere = new BoundingSphere(Vector3.Zero, Terrain.PlanetRadius + Planet.HeightMag);
this.GetNeighbour = method;
this.location = location;
this.parent = parent;
if (blockOffset == Vector3.Zero)
this.blockOffset = new Vector3(0, 0, Planet.PlanetRes);
else
this.blockOffset = new Vector3(blockOffset.X, blockOffset.Y, blockOffset.Z);
this.planet = planet;
this.pWidth = terrain.Size;
this.busy = false;
this.baseTexture = terrain.baseTexture;
this.children = new TerrainBlock[BlockRes, BlockRes];
this.terrain = new Terrain[BlockRes, BlockRes];
if (planet)
this.SplitMainTerrainPlanet(terrain);
this.visible = true;
//this.SplitChildren(Vector3.Zero);
}
public void SplitChildrenPlanet(object input)
{
Vector3 position = (Vector3)input;
if (this.depth >= maxDepth)
return;
if (this.busy)
return;
this.busy = true;
for (int x = 0; x < BlockRes; x++)
for (int y = 0; y < BlockRes; y++)
{
int t = this.terrain[x, y].Size - 1;
Vector3 a = this.terrain[x, y].Center + this.terrain[x, y].Position;//c
Vector3 b = this.terrain[x, y].GetAdjustedPos(this.terrain[x, y].vertices[0].Position) + this.terrain[x, y].Position;//NW
Vector3 c = this.terrain[x, y].GetAdjustedPos(this.terrain[x, y].vertices[t].Position) + this.terrain[x, y].Position;//NE
Vector3 d = this.terrain[x, y].GetAdjustedPos(this.terrain[x, y].vertices[this.terrain[x, y].vertices.Count() - 1].Position) + this.terrain[x, y].Position;//SE
Vector3 e = this.terrain[x, y].GetAdjustedPos(this.terrain[x, y].vertices[this.terrain[x, y].vertices.Count() - t - 1].Position) + this.terrain[x, y].Position;//SW
//float d = (Vector3.Cross((a - b), (b - position))).Length() / (a - b).Length();
if (((a - position).Length() > Terrain.PlanetRadius / (1.1f * (Math.Pow(2, this.depth))) &&
(b - position).Length() > Terrain.PlanetRadius / (1.1f * (Math.Pow(2, this.depth))) &&
(c - position).Length() > Terrain.PlanetRadius / (1.1f * (Math.Pow(2, this.depth))) &&
(d - position).Length() > Terrain.PlanetRadius / (1.1f * (Math.Pow(2, this.depth))) &&
(e - position).Length() > Terrain.PlanetRadius / (1.1f * (Math.Pow(2, this.depth)))) ||
waterSphere.Contains(new BoundingBox(b, d)) == ContainmentType.Contains)
{
if (this.children[x, y] != null)
{
this.children[x, y].nullChildren();
this.children[x, y] = null;
}
continue;
}
if (children[x, y] == null)
{
int size = Planet.PlanetRes;
Terrain tmp = new Terrain(terrain[x, y].CellSize / 4.0f, terrain[x, y].Height, terrain[x, y].TextureTiling, size,
new Vector3(terrain[x, y].Position.X, terrain[x, y].Position.Y, terrain[x, y].Position.Z),
effect, baseTexture, Terrain.Type.CubeFace, this.depth + 1);
float[,] heights = new float[size, size];
for (int x1 = 0; x1 < size; x1++)
for (int y1 = 0; y1 < size; y1++)
heights[x1, y1] = this.terrain[x, y].heightMaps[x1 / 2, y1 / 2];
Vector3 blcOff = new Vector3(blockOffset.X, blockOffset.Y, (blockOffset.Z - 1) * 2 + 1);
blcOff.X *= 2;
blcOff.Y *= 2;
blcOff.X += (size - 1) * x;
blcOff.Y += (size - 1) * y;
tmp.GenerateCustom(new Fractal(size, (this.depth + 1) * 8).stepFrac(heights, 1), blcOff);
tmp.GlobalRot = terrain[x, y].GlobalRot;
TerrainBlock tb = new TerrainBlock(tmp, this.depth + 1, GraphicsDevice, effect, this.planetBlock, this.GetNeighbour, new Point(x, y), this, blcOff);
children[x, y] = tb;
}
if (children[x, y] != null)
children[x, y].SplitChildrenPlanet(position);
}
this.busy = false;
}
public List<float>[] GetNeighbourTerrain(Point myLoc, TerrainBlock parent)
{
//ltrb
List<float>[] result = new List<float>[4];
if (parent == null)
return result;
if (myLoc.X == 0 && myLoc.Y == 0)
{
result[2] = parent.terrain[1, 0].MyRawHeightBorders[0];
result[3] = parent.terrain[0, 1].MyRawHeightBorders[1];
}
else if (myLoc.X == 0 && myLoc.Y == 1)
{
result[1] = parent.terrain[0, 0].MyRawHeightBorders[3];
result[2] = parent.terrain[1, 1].MyRawHeightBorders[0];
}
else if (myLoc.X == 1 && myLoc.Y == 0)
{
result[0] = parent.terrain[0, 0].MyRawHeightBorders[2];
result[3] = parent.terrain[1, 1].MyRawHeightBorders[1];
}
else if (myLoc.X == 1 && myLoc.Y == 1)
{
result[0] = parent.terrain[0, 1].MyRawHeightBorders[2];
result[1] = parent.terrain[1, 0].MyRawHeightBorders[3];
}
return result;
}
public Planet(GraphicsDevice GraphicsDevice, ContentManager Content)
{
this.isWater = false;
Effect effect = Content.Load<Effect>(@"effects/PPModel");
Texture2D texture = Content.Load<Texture2D>(@"textures/base");
Vector3 pos = Vector3.Zero;
top = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
top.GenerateFractual();
float[][] borders = new float[4][];
borders[2] = top.MyHeightBorders[0].ToArray();
left = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
left.GenerateFractualSlice(new Vector3(0, 0, 90), borders, Fractal.BorderType.Right);
borders = new float[4][];
borders[0] = top.MyHeightBorders[2].ToArray();
right = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
right.GenerateFractualSlice(new Vector3(0, 0, -90), borders, Fractal.BorderType.Left);
borders = new float[4][];
borders[0] = left.MyHeightBorders[3].ToArray();
borders[1] = top.MyHeightBorders[3].ToArray();
borders[2] = right.MyHeightBorders[3].ToArray();
Array.Reverse(borders[0]);
front = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
front.GenerateFractualSlice(new Vector3(90, 0, 0), borders, Fractal.BorderType.Left | Fractal.BorderType.Top | Fractal.BorderType.Right);
borders = new float[4][];
borders[0] = left.MyHeightBorders[1].ToArray();
borders[2] = right.MyHeightBorders[1].ToArray();
borders[3] = top.MyHeightBorders[1].ToArray();
Array.Reverse(borders[2]);
back = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
back.GenerateFractualSlice(new Vector3(-90, 0, 0), borders, Fractal.BorderType.Left | Fractal.BorderType.Bottom | Fractal.BorderType.Right);
borders = new float[4][];
borders[0] = left.MyHeightBorders[0].ToArray();
borders[1] = front.MyHeightBorders[3].ToArray();
borders[2] = right.MyHeightBorders[2].ToArray();
borders[3] = back.MyHeightBorders[1].ToArray();
Array.Reverse(borders[0]);
Array.Reverse(borders[2]);
bottom = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, effect, texture, Terrain.Type.CubeFace);
bottom.GenerateFractualSlice(new Vector3(180, 0, 0), borders, Fractal.BorderType.All);
///////////////////
top.loadPosBorders(left.MyRawHeightBorders[2], Fractal.BorderType.Left, false);
top.loadPosBorders(right.MyRawHeightBorders[0], Fractal.BorderType.Right, false);
top.loadPosBorders(front.MyRawHeightBorders[1], Fractal.BorderType.Bottom, false);
top.loadPosBorders(back.MyRawHeightBorders[3], Fractal.BorderType.Top, false);
top.PostNormalize();
left.loadPosBorders(top.MyRawHeightBorders[0], Fractal.BorderType.Right, false);
left.loadPosBorders(front.MyRawHeightBorders[0], Fractal.BorderType.Bottom, true);
left.loadPosBorders(back.MyRawHeightBorders[0], Fractal.BorderType.Top, false);
left.loadPosBorders(bottom.MyRawHeightBorders[0], Fractal.BorderType.Left, true);
left.PostNormalize();
right.loadPosBorders(top.MyRawHeightBorders[2], Fractal.BorderType.Left, false);
right.loadPosBorders(front.MyRawHeightBorders[2], Fractal.BorderType.Bottom, false);
right.loadPosBorders(back.MyRawHeightBorders[2], Fractal.BorderType.Top, true);
right.loadPosBorders(bottom.MyRawHeightBorders[2], Fractal.BorderType.Right, true);
right.PostNormalize();
front.loadPosBorders(top.MyRawHeightBorders[3], Fractal.BorderType.Top, false);
front.loadPosBorders(left.MyRawHeightBorders[3], Fractal.BorderType.Left, true);
front.loadPosBorders(right.MyRawHeightBorders[3], Fractal.BorderType.Right, false);
front.loadPosBorders(bottom.MyRawHeightBorders[1], Fractal.BorderType.Bottom, false);
front.PostNormalize();
back.loadPosBorders(top.MyRawHeightBorders[1], Fractal.BorderType.Bottom, false);
back.loadPosBorders(right.MyRawHeightBorders[1], Fractal.BorderType.Right, true);
back.loadPosBorders(left.MyRawHeightBorders[1], Fractal.BorderType.Left, false);
back.loadPosBorders(bottom.MyRawHeightBorders[3], Fractal.BorderType.Top, false);
back.PostNormalize();
bottom.loadPosBorders(left.MyRawHeightBorders[0], Fractal.BorderType.Left, true);
bottom.loadPosBorders(front.MyRawHeightBorders[3], Fractal.BorderType.Top, false);
bottom.loadPosBorders(right.MyRawHeightBorders[2], Fractal.BorderType.Right, true);
bottom.loadPosBorders(back.MyRawHeightBorders[1], Fractal.BorderType.Bottom, false);
bottom.PostNormalize();
topBlock = new TerrainBlock(top, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Top, this.GetNeighbourTerrain, new Point(), null);
leftBlock = new TerrainBlock(left, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Left, this.GetNeighbourTerrain, new Point(), null);
rightBlock = new TerrainBlock(right, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Right, this.GetNeighbourTerrain, new Point(), null);
frontBlock = new TerrainBlock(front, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Front, this.GetNeighbourTerrain, new Point(), null);
backBlock = new TerrainBlock(back, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Back, this.GetNeighbourTerrain, new Point(), null);
bottomBlock = new TerrainBlock(bottom, 0, GraphicsDevice, effect, TerrainBlock.PlanetBlock.Bottom, this.GetNeighbourTerrain, new Point(), null);
topBlock.GetNeighbour = this.GetNeighbourTerrain;
leftBlock.GetNeighbour = this.GetNeighbourTerrain;
rightBlock.GetNeighbour = this.GetNeighbourTerrain;
frontBlock.GetNeighbour = this.GetNeighbourTerrain;
backBlock.GetNeighbour = this.GetNeighbourTerrain;
bottomBlock.GetNeighbour = this.GetNeighbourTerrain;
water = new Planet(GraphicsDevice, Content, true);
}
public Planet(GraphicsDevice GraphicsDevice, ContentManager Content, Vector3 sunPosition)
{
this.isWater = false;
Vector3 pos = Vector3.Zero;
top = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
top.GenerateFractual();
top.LightPosition = sunPosition;
topBlock = new TerrainBlock(top, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
//l,t,r,b
float[,] borders = new float[4, PlanetRes];
for (int i = 0; i < 4; i++)
for (int c = 0; c < PlanetRes; c++)
if (i == 2)
borders[i, c] = top.heightMaps[0, c];
left = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
left.GenerateFractualSlice(new Vector3(0, 0, 90), borders, Fractal.BorderType.Right);
left.LightPosition = sunPosition;
leftBlock = new TerrainBlock(left, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
//l,t,r,b
borders = new float[4, PlanetRes];
for (int i = 0; i < 4; i++)
for (int c = 0; c < PlanetRes; c++)
if (i == 0)
borders[i, c] = top.heightMaps[(PlanetRes - 1), c];
right = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
right.GenerateFractualSlice(new Vector3(0, 0, -90), borders, Fractal.BorderType.Left);
right.LightPosition = sunPosition;
rightBlock = new TerrainBlock(right, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
//l,t,r,b
borders = new float[4, PlanetRes];
for (int i = 0; i < 4; i++)
for (int c = 0; c < PlanetRes; c++)
if (i == 0)
borders[i, c] = left.heightMaps[(PlanetRes - 1) - c, (PlanetRes - 1)];
else if (i == 1)
borders[i, c] = top.heightMaps[c, (PlanetRes - 1)];
else if (i == 2)
borders[i, c] = right.heightMaps[c, (PlanetRes - 1)];
front = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
front.GenerateFractualSlice(new Vector3(90, 0, 0), borders, Fractal.BorderType.Left | Fractal.BorderType.Top | Fractal.BorderType.Right);
front.LightPosition = sunPosition;
frontBlock = new TerrainBlock(front, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
//l,t,r,b
borders = new float[4, PlanetRes];
for (int i = 0; i < 4; i++)
for (int c = 0; c < PlanetRes; c++)
if (i == 0)
borders[i, c] = left.heightMaps[c, 0];
else if (i == 2)
borders[i, c] = right.heightMaps[(PlanetRes - 1) - c, 0];
else if (i == 3)
borders[i, c] = top.heightMaps[c, 0];
back = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
back.GenerateFractualSlice(new Vector3(-90, 0, 0), borders, Fractal.BorderType.Left | Fractal.BorderType.Bottom | Fractal.BorderType.Right);
back.LightPosition = sunPosition;
backBlock = new TerrainBlock(back, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
//l,t,r,b
borders = new float[4, PlanetRes];
for (int i = 0; i < 4; i++)
for (int c = 0; c < PlanetRes; c++)
if (i == 0)
borders[i, c] = left.heightMaps[0, (PlanetRes - 1) - c];
else if (i == 1)
borders[i, c] = front.heightMaps[c, (PlanetRes - 1)];
else if (i == 2)
borders[i, c] = right.heightMaps[(PlanetRes - 1), (PlanetRes - 1) - c];
else if (i == 3)
borders[i, c] = back.heightMaps[c, 0];
bottom = new Terrain(4096, HeightMag, 1f, PlanetRes, pos, new Vector3(1, -1, 0), GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"), Content.Load<Texture2D>(@"textures/base"), Terrain.Type.CubeFace);
bottom.GenerateFractualSlice(new Vector3(180, 0, 0), borders, Fractal.BorderType.All);
bottom.LightPosition = sunPosition;
bottomBlock = new TerrainBlock(bottom, 0, true, GraphicsDevice, Content.Load<Effect>(@"effects/Terrain"));
water = new Planet(GraphicsDevice, Content, true, sunPosition);
}
public void SplitChildrenPlanet(object input)
{
Vector3 position = (Vector3)input;
if (this.depth >= maxDepth)
return;
if (this.busy)
return;
this.busy = true;
for (int i = 0; i < 4; i++)
{
int t = this.terrain[i].width - 1;
Vector3 a = this.terrain[i].Center + this.terrain[i].Position;//c
Vector3 b = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[0].Position) + this.terrain[i].Position;//NW
Vector3 c = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[t].Position) + this.terrain[i].Position;//NE
Vector3 d = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[this.terrain[i].vertices.Count() - 1].Position) + this.terrain[i].Position;//SE
Vector3 e = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[this.terrain[i].vertices.Count() - t - 1].Position) + this.terrain[i].Position;//SW
//float d = (Vector3.Cross((a - b), (b - position))).Length() / (a - b).Length();
if (((a - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (2.5f - (0 * depth)) &&
(b - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (2.5f - (0 * depth)) &&
(c - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (2.5f - (0 * depth)) &&
(d - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (2.5f - (0 * depth)) &&
(e - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (2.5f - (0 * depth))) ||
waterSphere.Contains(new BoundingBox(b, d)) == ContainmentType.Contains)
{
if (this.children[i] != null)
{
this.children[i].nullChildren();
this.children[i] = null;
}
continue;
}
if (children[i] == null)
{
Terrain tmp = new Terrain(terrain[i].cellSize / 2.0f, terrain[i].height, terrain[i].textureTiling, (int)(terrain[i].width * 2 - 1),
new Vector3(terrain[i].Position.X, terrain[i].Position.Y, terrain[i].Position.Z),
terrain[i].lightDirection, GraphicsDevice, effect, baseTexture, Terrain.Type.CubeFace);
int size = terrain[i].width * 2 - 1;
float[,] heights = new float[size, size];
for (int x = 0; x < size; x += 2)
for (int y = 0; y < size; y += 2)
heights[x, y] = terrain[i].heightMaps[x / 2, y / 2];
Vector3 blcOff = new Vector3(blockOffset.X, blockOffset.Y, -1);
switch (i)
{
case 0:
blcOff.X *= 2;
blcOff.Y *= 2;
break;
case 1:
blcOff.X *= 2;
blcOff.X += size - 1;
blcOff.Y *= 2;
break;
case 2:
blcOff.X *= 2;
blcOff.Y *= 2;
blcOff.Y += size - 1;
break;
case 3:
blcOff.X *= 2;
blcOff.X += size - 1;
blcOff.Y *= 2;
blcOff.Y += size - 1;
break;
}
tmp.GenerateCustom(new Fractal(size, this.depth + 8).singleStep(heights), terrain[i].LightPosition, blcOff);
tmp.GlobalRot = terrain[i].GlobalRot;
TerrainBlock tb = new TerrainBlock(tmp, this.depth + 1, this.planet, GraphicsDevice, effect, blcOff);
children[i] = tb;
}
if (children[i] != null)
children[i].SplitChildren(position);
}
this.busy = false;
}
public void SplitChildren(object input)
{
if (this.planet)
{
this.SplitChildrenPlanet(input);
return;
}
Vector3 position = (Vector3)input;
if (this.depth >= maxDepth)
return;
if (this.busy)
return;
this.busy = true;
for (int i = 0; i < 4; i++)
{
int t = this.terrain[i].width - 1;
Vector3 a = this.terrain[i].Center + this.terrain[i].Position;//c
Vector3 b = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[0].Position) + this.terrain[i].Position;//NW
Vector3 c = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[t].Position) + this.terrain[i].Position;//NE
Vector3 d = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[this.terrain[i].vertices.Count() - 1].Position) + this.terrain[i].Position;//SE
Vector3 e = this.terrain[i].getAdjustedPos(this.terrain[i].vertices[this.terrain[i].vertices.Count() - t - 1].Position) + this.terrain[i].Position;//SW
//float d = (Vector3.Cross((a - b), (b - position))).Length() / (a - b).Length();
if ((a - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (1.75f + (0.075f * depth)) &&
(b - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (1.25f + (0.075f * depth)) &&
(c - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (1.25f + (0.075f * depth)) &&
(d - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (1.25f + (0.075f * depth)) &&
(e - position).Length() > this.terrain[i].width * this.terrain[i].cellSize * (1.25f + (0.075f * depth)))
{
if (this.children[i] != null)
{
this.children[i].nullChildren();
this.children[i] = null;
}
continue;
}
float sizeOffset = (float)terrain[i].cellSize * ((float)terrain[i].width / 8.0f);
Terrain tmp = new Terrain(terrain[i].cellSize / 2.0f, terrain[i].height, terrain[i].textureTiling, (int)(terrain[i].width * 2 - 1),
new Vector3(terrain[i].Position.X - sizeOffset, terrain[i].Position.Y, terrain[i].Position.Z - sizeOffset),
terrain[i].lightDirection,GraphicsDevice,effect, baseTexture);
int size = terrain[i].width * 2 - 1;
float[,] heights = new float[size, size];
for (int x = 0; x < size; x += 2)
for (int y = 0; y < size; y += 2)
heights[x, y] = terrain[i].heightMaps[x / 2, y / 2];
if (children[i] == null)
{
tmp.GenerateCustom(new Fractal(size, this.depth + 8).singleStep(heights));
TerrainBlock tb = new TerrainBlock(tmp, this.depth + 1, this.planet, GraphicsDevice, effect);
children[i] = tb;
}
if (children[i] != null)
children[i].SplitChildren(position);
}
this.busy = false;
}
