protected void GenerateRiver(IChunk c, int x, int y, int z, double heightPercentage, BIOME_TYPE type)
{
// Rivers under water? Nope.
if (y <= 63)
{
return;
}
double lakeIntens = CalcLakeIntensity(x + c.Coords.ChunkX * 16, z + c.Coords.ChunkZ * 16);
short currentIndex = (short)(x << 11 | z << 7 | y);
if (lakeIntens < 0.2)
{
if (heightPercentage < 0.001)
{
c.SetType(x, y, z, BlockData.Blocks.Air, false);
}
else if (heightPercentage < 0.02)
{
if (type == BIOME_TYPE.SNOW)
{
// To be sure that there's no snow above us
c.SetType(x, y + 1, z, BlockData.Blocks.Air, false);
c.SetType(x, y, z, BlockData.Blocks.Ice, false);
}
else
{
c.SetType(x, y, z, BlockData.Blocks.Still_Water, false);
}
}
}
}
private void GenerateTree(IChunk c, int x, int y, int z)
{
// Trees should only be placed in direct sunlight
if (!CanSeeTheSky(x, y + 1, z, c))
{
return;
}
double r2 = _FastRandom.standNormalDistrDouble();
/*if (r2 > -2 && r2 < -1)
* {*/
// Standard tree
for (int by = y + 4; by < y + 6; by++)
{
for (int bx = x - 2; bx <= x + 2; bx++)
{
for (int bz = z - 2; bz <= z + 2; bz++)
{
c.SetType(bx, by, bz, BlockData.Blocks.Leaves, false);
c.SetData(bx, by, bz, 0, false);
}
}
}
for (int bx = x - 1; bx <= x + 1; bx++)
{
for (int bz = z - 1; bz <= z + 1; bz++)
{
c.SetType(bx, y + 6, bz, BlockData.Blocks.Leaves, false);
c.SetData(bx, y + 6, bz, 0, false);
}
}
for (int by = y + 1; by < y + 6; by++)
{
c.SetType(x, by, z, BlockData.Blocks.Wood, false);
c.SetData(x, by, z, 0, false);
}
//}
// TODO: other tree types
/*else if (r2 > 1 && r2 < 2)
* {
* c.setBlock(x, y + 1, z, (byte)0x0);
* c.getParent().getObjectGenerator("firTree").generate(c.getBlockWorldPosX(x), y + 1, c.getBlockWorldPosZ(z), false);
* }
* else
* {
* c.setBlock(x, y + 1, z, (byte)0x0);
* c.getParent().getObjectGenerator("tree").generate(c.getBlockWorldPosX(x), y + 1, c.getBlockWorldPosZ(z), false);
* }*/
}
private void GenerateResource(int x, int y, int z, IChunk c)
{
if (r.Next(100 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Diamond_Ore, false);
}
else if (r.Next(100 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Lapis_Lazuli_Ore, false);
}
else if (r.Next(40 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Gold_Ore, false);
}
else if (r.Next(10 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Redstone_Ore_Glowing, false);
}
else if (r.Next(4 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Iron_Ore, false);
}
else if (r.Next(2 * y) == 0)
{
c.SetType(x, y, z, BlockData.Blocks.Coal_Ore, false);
}
}
private void GenerateCactus(IChunk c, int x, int y, int z)
{
int height = (_FastRandom.randomInt() + 1) % 3;
if (!CanSeeTheSky(x, y + 1, z, c))
{
return;
}
for (int by = height; by < y + height; ++y)
{
c.SetType(x, y, z, BlockData.Blocks.Cactus, false);
}
}
private void GenerateInnerLayer(int x, int y, int z, BIOME_TYPE type, IChunk c)
{
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
}
protected void GenerateRiver(IChunk c, int x, int y, int z, double heightPercentage, BIOME_TYPE type)
{
// Rivers under water? Nope.
if (y <= 63)
return;
double lakeIntens = CalcLakeIntensity(x + c.Coords.ChunkX * 16, z + c.Coords.ChunkZ * 16);
short currentIndex = (short)(x << 11 | z << 7 | y);
if (lakeIntens < 0.2)
{
if (heightPercentage < 0.001)
c.SetType(x, y, z, BlockData.Blocks.Air, false);
else if (heightPercentage < 0.02)
{
if (type == BIOME_TYPE.SNOW)
{
// To be sure that there's no snow above us
c.SetType(x, y + 1, z, BlockData.Blocks.Air, false);
c.SetType(x, y, z, BlockData.Blocks.Ice, false);
}
else
c.SetType(x, y, z, BlockData.Blocks.Still_Water, false);
}
}
}
private void GenerateOuterLayer(int x, int y, int z, int firstBlockHeight, BIOME_TYPE type, IChunk c)
{
double heightPercentage = (firstBlockHeight - y) / 128.0;
switch (type)
{
case BIOME_TYPE.PLAINS:
case BIOME_TYPE.MOUNTAINS:
// Beach
if (y >= 60 && y <= 66)
{
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.MOUNTAINS);
c.SetType(x, y, z, BlockData.Blocks.Sand, false);
break;
}
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.MOUNTAINS);
if (heightPercentage == 0.0 && y > 66)
{
// Grass on top
c.SetType(x, y, z, BlockData.Blocks.Grass, false);
}
else if (heightPercentage > 0.2)
{
// Stone
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
}
else
{
// Dirt
c.SetType(x, y, z, BlockData.Blocks.Dirt, false);
}
GenerateRiver(c, x, y, z, heightPercentage, type);
break;
case BIOME_TYPE.SNOW:
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.SNOW);
if (heightPercentage == 0.0 && y > 65)
{
// Snow on top
c.SetType(x, y, z, BlockData.Blocks.Snow, false);
// Grass under the snow
c.SetType(x, y - 1, z, BlockData.Blocks.Grass, false);
}
else if (heightPercentage > 0.2)
// Stone
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
else
// Dirt
c.SetType(x, y, z, BlockData.Blocks.Dirt, false);
GenerateRiver(c, x, y, z, heightPercentage, type);
break;
case BIOME_TYPE.DESERT:
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.DESERT);
/*if (heightPercentage > 0.6 && y < 75)
{
// Stone
data[x << 11 | z << 7 | y] = (byte)BlockData.Blocks.Stone;
}
else*/
if (y < 80)
c.SetType(x, y, z, BlockData.Blocks.Sand, false);
break;
}
}
private void GenerateTree(IChunk c, int x, int y, int z)
{
// Trees should only be placed in direct sunlight
if (!CanSeeTheSky(x, y + 1, z, c))
return;
double r2 = _FastRandom.standNormalDistrDouble();
/*if (r2 > -2 && r2 < -1)
{*/
// Standard tree
for (int by = y + 4; by < y + 6; by++)
for (int bx = x - 2; bx <= x + 2; bx++)
for (int bz = z - 2; bz <= z + 2; bz++)
{
c.SetType(bx, by, bz, BlockData.Blocks.Leaves, false);
c.SetData(bx, by, bz, 0, false);
}
for (int bx = x - 1; bx <= x + 1; bx++)
for (int bz = z - 1; bz <= z + 1; bz++)
{
c.SetType(bx, y + 6, bz, BlockData.Blocks.Leaves, false);
c.SetData(bx, y + 6, bz, 0, false);
}
for (int by = y + 1; by < y + 6; by++)
{
c.SetType(x, by, z, BlockData.Blocks.Wood, false);
c.SetData(x, by, z, 0, false);
}
//}
// TODO: other tree types
/*else if (r2 > 1 && r2 < 2)
{
c.setBlock(x, y + 1, z, (byte)0x0);
c.getParent().getObjectGenerator("firTree").generate(c.getBlockWorldPosX(x), y + 1, c.getBlockWorldPosZ(z), false);
}
else
{
c.setBlock(x, y + 1, z, (byte)0x0);
c.getParent().getObjectGenerator("tree").generate(c.getBlockWorldPosX(x), y + 1, c.getBlockWorldPosZ(z), false);
}*/
}
private void GenerateCactus(IChunk c, int x, int y, int z)
{
int height = (_FastRandom.randomInt() + 1) % 3;
if (!CanSeeTheSky(x, y + 1, z, c))
return;
for (int by = height; by < y + height; ++y)
c.SetType(x, y, z, BlockData.Blocks.Cactus, false);
}
private void GenerateFlora(IChunk c, int x, int z)
{
BIOME_TYPE biome = CalcBiomeType(x, z);
for (int bx = 0; bx < 16; ++bx)
{
int worldX = bx + x * 16;
for (int bz = 0; bz < 16; ++bz)
{
int worldZ = bz + z * 16;
for (int by = 64; by < 128; ++by)
{
int worldY = by;
//int index = bx << 11 | bz << 7 | by + 1;
if (c.GetType(bx, by, bz) == BlockData.Blocks.Grass && c.GetType(bx, by + 1, bz) == (byte)BlockData.Blocks.Air)
{
double grassDens = CalcGrassDensity(worldX, worldZ);
if (grassDens > 0.0)
{
// Generate high grass.
double rand = _FastRandom.standNormalDistrDouble();
if (rand > -0.2 && rand < 0.2)
{
c.SetType(bx, by + 1, bz, BlockData.Blocks.TallGrass, false);
c.SetData(bx, by + 1, bz, 1, false);
}
//Generate flowers.
if (_FastRandom.standNormalDistrDouble() < -2)
{
if (_FastRandom.randomBoolean())
c.SetType(bx, by + 1, bz, BlockData.Blocks.Rose, false);
else
c.SetType(bx, by + 1, bz, BlockData.Blocks.Yellow_Flower, false);
}
}
if (by < 110 && bx % 4 == 0 && bz % 4 == 0)
{
double forestDens = CalcForestDensity(worldX, worldZ);
if (forestDens > 0.005)
{
int randX = bx + _FastRandom.randomInt() % 12 + 4;
int randZ = bz + _FastRandom.randomInt() % 12 + 4;
if (randX < 3)
randX = 3;
else if (randX > 12)
randX = 12;
if (randZ < 3)
randZ = 3;
else if (randZ > 15)
randZ = 12;
if (c.GetType(randX, by, randZ) == BlockData.Blocks.Grass)
GenerateTree(c, randX, by, randZ);
else if (biome == BIOME_TYPE.DESERT && c.GetType(randX, by, randZ) == BlockData.Blocks.Sand)
GenerateCactus(c, randX, by, randZ);
}
}
}
}
}
}
}
private void GenerateResource(int x, int y, int z, IChunk c)
{
if (r.Next(100 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Diamond_Ore, false);
else if (r.Next(100 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Lapis_Lazuli_Ore, false);
else if (r.Next(40 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Gold_Ore, false);
else if (r.Next(10 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Redstone_Ore_Glowing, false);
else if (r.Next(4 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Iron_Ore, false);
else if (r.Next(2 * y) == 0)
c.SetType(x, y, z, BlockData.Blocks.Coal_Ore, false);
}
private void GenerateTerrain(IChunk c, int x, int z)
{
double[, ,] density = new double[17, 129, 17];
// Build the density map with lower resolution, 4*4*16 instead of 16*16*128
for (int bx = 0; bx <= 16; bx += 4)
{
int worldX = bx + (x * 16);
for (int bz = 0; bz <= 16; bz += 4)
{
BIOME_TYPE type = CalcBiomeType(x, z);
int worldZ = bz + (z * 16);
for (int by = 0; by <= 128; by += 8)
{
density[bx, by, bz] = CalcDensity(worldX, by, worldZ, type);
}
}
}
triLerpDensityMap(density);
for (int bx = 0; bx < 16; bx++)
{
int worldX = bx + (x * 16);
for (int bz = 0; bz < 16; bz++)
{
int worldZ = bz + (z * 16);
int firstBlockHeight = -1;
BIOME_TYPE type = CalcBiomeType(worldX, worldZ);
for (int by = 127; by >= 0; --by)
{
//int index = bx << 11 | bz << 7 | by;
if (by == 0) // First bedrock Layer
c.SetType(bx, by, bz, BlockData.Blocks.Bedrock, false);
else if (by > 0 && by < 5 && _FastRandom.randomDouble() > 0.3) // Randomly put blocks of the remaining 4 layers of bedrock
c.SetType(bx, by, bz, BlockData.Blocks.Bedrock, false);
else if (by <= 55)
c.SetType(bx, by, bz, BlockData.Blocks.Stone, false);
else
{
if (by > 55 && by < 64)
{
c.SetType(bx, by, bz, BlockData.Blocks.Still_Water, false);
if (by == 63 && type == BIOME_TYPE.SNOW)
{
c.SetBiomeColumn(bx, bz, (byte)BIOME_TYPE.SNOW);
c.SetType(bx, by, bz, BlockData.Blocks.Ice, false);
}
}
double dens = density[bx, by, bz];
if (dens >= 0.009 && dens <= 0.02)
{
// Some block was set...
if (firstBlockHeight == -1)
firstBlockHeight = by;
GenerateOuterLayer(bx, by, bz, firstBlockHeight, type, c);
}
else if (dens > 0.02)
{
// Some block was set...
if (firstBlockHeight == -1)
firstBlockHeight = by;
if (CalcCaveDensity(worldX, by, worldZ) > -0.6)
GenerateInnerLayer(bx, by, bz, type, c);
}
else
firstBlockHeight = -1;
}
if (c.GetType(bx, by, bz) == BlockData.Blocks.Stone)
GenerateResource(bx, by, bz, c);
}
}
}
}
private void GenerateInnerLayer(int x, int y, int z, BIOME_TYPE type, IChunk c)
{
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
}
private void GenerateOuterLayer(int x, int y, int z, int firstBlockHeight, BIOME_TYPE type, IChunk c)
{
double heightPercentage = (firstBlockHeight - y) / 128.0;
switch (type)
{
case BIOME_TYPE.PLAINS:
case BIOME_TYPE.MOUNTAINS:
// Beach
if (y >= 60 && y <= 66)
{
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.MOUNTAINS);
c.SetType(x, y, z, BlockData.Blocks.Sand, false);
break;
}
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.MOUNTAINS);
if (heightPercentage == 0.0 && y > 66)
{
// Grass on top
c.SetType(x, y, z, BlockData.Blocks.Grass, false);
}
else if (heightPercentage > 0.2)
{
// Stone
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
}
else
{
// Dirt
c.SetType(x, y, z, BlockData.Blocks.Dirt, false);
}
GenerateRiver(c, x, y, z, heightPercentage, type);
break;
case BIOME_TYPE.SNOW:
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.SNOW);
if (heightPercentage == 0.0 && y > 65)
{
// Snow on top
c.SetType(x, y, z, BlockData.Blocks.Snow, false);
// Grass under the snow
c.SetType(x, y - 1, z, BlockData.Blocks.Grass, false);
}
else if (heightPercentage > 0.2)
{
// Stone
c.SetType(x, y, z, BlockData.Blocks.Stone, false);
}
else
{
// Dirt
c.SetType(x, y, z, BlockData.Blocks.Dirt, false);
}
GenerateRiver(c, x, y, z, heightPercentage, type);
break;
case BIOME_TYPE.DESERT:
c.SetBiomeColumn(x, z, (byte)BIOME_TYPE.DESERT);
/*if (heightPercentage > 0.6 && y < 75)
* {
* // Stone
* data[x << 11 | z << 7 | y] = (byte)BlockData.Blocks.Stone;
* }
* else*/
if (y < 80)
{
c.SetType(x, y, z, BlockData.Blocks.Sand, false);
}
break;
}
}
private void GenerateFlora(IChunk c, int x, int z)
{
BIOME_TYPE biome = CalcBiomeType(x, z);
for (int bx = 0; bx < 16; ++bx)
{
int worldX = bx + x * 16;
for (int bz = 0; bz < 16; ++bz)
{
int worldZ = bz + z * 16;
for (int by = 64; by < 128; ++by)
{
int worldY = by;
//int index = bx << 11 | bz << 7 | by + 1;
if (c.GetType(bx, by, bz) == BlockData.Blocks.Grass && c.GetType(bx, by + 1, bz) == (byte)BlockData.Blocks.Air)
{
double grassDens = CalcGrassDensity(worldX, worldZ);
if (grassDens > 0.0)
{
// Generate high grass.
double rand = _FastRandom.standNormalDistrDouble();
if (rand > -0.2 && rand < 0.2)
{
c.SetType(bx, by + 1, bz, BlockData.Blocks.TallGrass, false);
c.SetData(bx, by + 1, bz, 1, false);
}
//Generate flowers.
if (_FastRandom.standNormalDistrDouble() < -2)
{
if (_FastRandom.randomBoolean())
{
c.SetType(bx, by + 1, bz, BlockData.Blocks.Rose, false);
}
else
{
c.SetType(bx, by + 1, bz, BlockData.Blocks.Yellow_Flower, false);
}
}
}
if (by < 110 && bx % 4 == 0 && bz % 4 == 0)
{
double forestDens = CalcForestDensity(worldX, worldZ);
if (forestDens > 0.005)
{
int randX = bx + _FastRandom.randomInt() % 12 + 4;
int randZ = bz + _FastRandom.randomInt() % 12 + 4;
if (randX < 3)
{
randX = 3;
}
else if (randX > 12)
{
randX = 12;
}
if (randZ < 3)
{
randZ = 3;
}
else if (randZ > 15)
{
randZ = 12;
}
if (c.GetType(randX, by, randZ) == BlockData.Blocks.Grass)
{
GenerateTree(c, randX, by, randZ);
}
else if (biome == BIOME_TYPE.DESERT && c.GetType(randX, by, randZ) == BlockData.Blocks.Sand)
{
GenerateCactus(c, randX, by, randZ);
}
}
}
}
}
}
}
}
private void GenerateTerrain(IChunk c, int x, int z)
{
double[, ,] density = new double[17, 129, 17];
// Build the density map with lower resolution, 4*4*16 instead of 16*16*128
for (int bx = 0; bx <= 16; bx += 4)
{
int worldX = bx + (x * 16);
for (int bz = 0; bz <= 16; bz += 4)
{
BIOME_TYPE type = CalcBiomeType(x, z);
int worldZ = bz + (z * 16);
for (int by = 0; by <= 128; by += 8)
{
density[bx, by, bz] = CalcDensity(worldX, by, worldZ, type);
}
}
}
triLerpDensityMap(density);
for (int bx = 0; bx < 16; bx++)
{
int worldX = bx + (x * 16);
for (int bz = 0; bz < 16; bz++)
{
int worldZ = bz + (z * 16);
int firstBlockHeight = -1;
BIOME_TYPE type = CalcBiomeType(worldX, worldZ);
for (int by = 127; by >= 0; --by)
{
//int index = bx << 11 | bz << 7 | by;
if (by == 0) // First bedrock Layer
{
c.SetType(bx, by, bz, BlockData.Blocks.Bedrock, false);
}
else if (by > 0 && by < 5 && _FastRandom.randomDouble() > 0.3) // Randomly put blocks of the remaining 4 layers of bedrock
{
c.SetType(bx, by, bz, BlockData.Blocks.Bedrock, false);
}
else if (by <= 55)
{
c.SetType(bx, by, bz, BlockData.Blocks.Stone, false);
}
else
{
if (by > 55 && by < 64)
{
c.SetType(bx, by, bz, BlockData.Blocks.Still_Water, false);
if (by == 63 && type == BIOME_TYPE.SNOW)
{
c.SetBiomeColumn(bx, bz, (byte)BIOME_TYPE.SNOW);
c.SetType(bx, by, bz, BlockData.Blocks.Ice, false);
}
}
double dens = density[bx, by, bz];
if (dens >= 0.009 && dens <= 0.02)
{
// Some block was set...
if (firstBlockHeight == -1)
{
firstBlockHeight = by;
}
GenerateOuterLayer(bx, by, bz, firstBlockHeight, type, c);
}
else if (dens > 0.02)
{
// Some block was set...
if (firstBlockHeight == -1)
{
firstBlockHeight = by;
}
if (CalcCaveDensity(worldX, by, worldZ) > -0.6)
{
GenerateInnerLayer(bx, by, bz, type, c);
}
}
else
{
firstBlockHeight = -1;
}
}
if (c.GetType(bx, by, bz) == BlockData.Blocks.Stone)
{
GenerateResource(bx, by, bz, c);
}
}
}
}
}
