public void ApplyDefaults()
{
Theme = new RealisticMapGenBlockTheme(MapGenTheme.Forest);
Seed = (new Random()).Next();
// default map dimensions
MapWidth = 256;
MapLength = 256;
MapHeight = 96;
// default terrain elevation / depth
MaxHeight = 20;
MaxDepth = 12;
MaxHeightVariation = 4;
MaxDepthVariation = 0;
// water defaults: 50% water level, approx 50% coverage
AddWater = true;
CustomWaterLevel = false;
MatchWaterCoverage = false;
WaterLevel = 48;
WaterCoverage = .5f;
// bias defaults (no bias at all)
UseBias = false;
DelayBias = false;
Bias = 0;
RaisedCorners = 0;
LoweredCorners = 0;
MidPoint = 0;
// default heightmap filtering options
DetailScale = 7;
FeatureScale = 1;
Roughness = .5f;
LayeredHeightmap = false;
MarbledHeightmap = false;
InvertHeightmap = false;
AboveFuncExponent = 1;
BelowFuncExponent = 1;
// default tree params (small tress only)
AddTrees = true;
AddGiantTrees = false;
TreeSpacingMin = 7;
TreeSpacingMax = 11;
TreeHeightMin = 5;
TreeHeightMax = 7;
// default cave/ore params (all off)
AddCaves = false;
AddOre = false;
AddCaveWater = false;
AddCaveLava = false;
CaveDensity = 2;
CaveSize = 1;
// default snow params (off)
AddSnow = false;
SnowAltitude = 70;
SnowTransition = 7;
// default cliff params (on)
AddCliffs = true;
CliffSmoothing = true;
CliffThreshold = 1;
CliffsideBlockThreshold = 0.01f;
// default beach params (off)
AddBeaches = false;
BeachExtent = 6;
BeachHeight = 2;
}
public RealisticMapGenParameters([NotNull] XElement root)
: this()
{
if (root == null)
{
throw new ArgumentNullException("root");
}
XAttribute versionTag = root.Attribute("version");
int version = 0;
if (versionTag != null && !String.IsNullOrEmpty(versionTag.Value))
{
version = Int32.Parse(versionTag.Value);
}
XElement el = root.Element("theme");
if (el != null)
{
string themeVal = el.Value;
MapGenTheme theme;
if (EnumUtil.TryParse(themeVal, out theme, true))
{
// for old versions of MapGen templates, use enum
Theme = new RealisticMapGenBlockTheme(theme);
}
else
{
// for newer versions, use the whole custom thing
Theme = new RealisticMapGenBlockTheme(el);
}
}
Seed = Int32.Parse(root.Element("seed").Value);
MapWidth = Int32.Parse(root.Element("dimX").Value);
MapLength = Int32.Parse(root.Element("dimY").Value);
MapHeight = Int32.Parse(root.Element("dimH").Value);
MaxHeight = Int32.Parse(root.Element("maxHeight").Value);
MaxDepth = Int32.Parse(root.Element("maxDepth").Value);
AddWater = Boolean.Parse(root.Element("addWater").Value);
if (root.Element("customWaterLevel") != null)
{
CustomWaterLevel = Boolean.Parse(root.Element("customWaterLevel").Value);
}
MatchWaterCoverage = Boolean.Parse(root.Element("matchWaterCoverage").Value);
WaterLevel = Int32.Parse(root.Element("waterLevel").Value);
WaterCoverage = float.Parse(root.Element("waterCoverage").Value);
UseBias = Boolean.Parse(root.Element("useBias").Value);
if (root.Element("delayBias") != null)
{
DelayBias = Boolean.Parse(root.Element("delayBias").Value);
}
Bias = float.Parse(root.Element("bias").Value);
RaisedCorners = Int32.Parse(root.Element("raisedCorners").Value);
LoweredCorners = Int32.Parse(root.Element("loweredCorners").Value);
MidPoint = Int32.Parse(root.Element("midPoint").Value);
if (version == 0)
{
DetailScale = Int32.Parse(root.Element("minDetailSize").Value);
FeatureScale = Int32.Parse(root.Element("maxDetailSize").Value);
}
else
{
DetailScale = Int32.Parse(root.Element("detailScale").Value);
FeatureScale = Int32.Parse(root.Element("featureScale").Value);
}
Roughness = float.Parse(root.Element("roughness").Value);
LayeredHeightmap = Boolean.Parse(root.Element("layeredHeightmap").Value);
MarbledHeightmap = Boolean.Parse(root.Element("marbledHeightmap").Value);
InvertHeightmap = Boolean.Parse(root.Element("invertHeightmap").Value);
if (root.Element("aboveFuncExponent") != null)
{
AboveFuncExponent = float.Parse(root.Element("aboveFuncExponent").Value);
}
if (root.Element("belowFuncExponent") != null)
{
BelowFuncExponent = float.Parse(root.Element("belowFuncExponent").Value);
}
AddTrees = Boolean.Parse(root.Element("addTrees").Value);
TreeSpacingMin = Int32.Parse(root.Element("treeSpacingMin").Value);
TreeSpacingMax = Int32.Parse(root.Element("treeSpacingMax").Value);
TreeHeightMin = Int32.Parse(root.Element("treeHeightMin").Value);
TreeHeightMax = Int32.Parse(root.Element("treeHeightMax").Value);
if (root.Element("addCaves") != null)
{
AddCaves = Boolean.Parse(root.Element("addCaves").Value);
AddCaveLava = Boolean.Parse(root.Element("addCaveLava").Value);
AddCaveWater = Boolean.Parse(root.Element("addCaveWater").Value);
AddOre = Boolean.Parse(root.Element("addOre").Value);
CaveDensity = float.Parse(root.Element("caveDensity").Value);
CaveSize = float.Parse(root.Element("caveSize").Value);
}
if (root.Element("addSnow") != null)
{
AddSnow = Boolean.Parse(root.Element("addSnow").Value);
}
if (root.Element("snowAltitude") != null)
{
SnowAltitude = Int32.Parse(root.Element("snowAltitude").Value);
}
if (root.Element("snowTransition") != null)
{
SnowTransition = Int32.Parse(root.Element("snowTransition").Value);
}
if (root.Element("addCliffs") != null)
{
AddCliffs = Boolean.Parse(root.Element("addCliffs").Value);
}
if (root.Element("cliffSmoothing") != null)
{
CliffSmoothing = Boolean.Parse(root.Element("cliffSmoothing").Value);
}
if (root.Element("cliffThreshold") != null)
{
CliffThreshold = float.Parse(root.Element("cliffThreshold").Value);
}
if (root.Element("addBeaches") != null)
{
AddBeaches = Boolean.Parse(root.Element("addBeaches").Value);
}
if (root.Element("beachExtent") != null)
{
BeachExtent = Int32.Parse(root.Element("beachExtent").Value);
}
if (root.Element("beachHeight") != null)
{
BeachHeight = Int32.Parse(root.Element("beachHeight").Value);
}
if (root.Element("maxHeightVariation") != null)
{
MaxHeightVariation = Int32.Parse(root.Element("maxHeightVariation").Value);
}
if (root.Element("maxDepthVariation") != null)
{
MaxDepthVariation = Int32.Parse(root.Element("maxDepthVariation").Value);
}
if (root.Element("addGiantTrees") != null)
{
AddGiantTrees = Boolean.Parse(root.Element("addGiantTrees").Value);
}
Validate();
}
Map GenerateMap()
{
Map map = new Map(null, genParams.MapWidth, genParams.MapLength, genParams.MapHeight, true);
theme = genParams.Theme;
// scale features vertically based on map height
double verticalScale = (genParams.MapHeight / 96.0) / 2 + 0.5;
maxHeightScaled = (int)Math.Round(genParams.MaxHeight * verticalScale);
maxDepthScaled = (int)Math.Round(genParams.MaxDepth * verticalScale);
snowAltitudeScaled = (int)Math.Round(genParams.SnowAltitude * verticalScale);
// Match water coverage
float desiredWaterLevel = .5f;
if (genParams.MatchWaterCoverage)
{
ReportRelativeProgress(2, "Heightmap Processing: Matching water coverage");
// find a number between 0 and 1 ("desiredWaterLevel") for the heightmap such that
// the fraction of heightmap coordinates ("blocks") that are below this threshold ("underwater")
// match the specified WaterCoverage
desiredWaterLevel = Noise.FindThreshold(heightMap, genParams.WaterCoverage);
}
// Calculate above/below water multipliers
float aboveWaterMultiplier = 0;
if (desiredWaterLevel < 1)
{
aboveWaterMultiplier = (maxHeightScaled / (1 - desiredWaterLevel));
}
// Apply power functions to above/below water parts of the heightmap
if (Math.Abs(genParams.BelowFuncExponent - 1) > float.Epsilon ||
Math.Abs(genParams.AboveFuncExponent - 1) > float.Epsilon)
{
ReportRelativeProgress(5, "Heightmap Processing: Adjusting slope");
for (int x = heightMap.GetLength(0) - 1; x >= 0; x--)
{
for (int y = heightMap.GetLength(1) - 1; y >= 0; y--)
{
if (heightMap[x, y] < desiredWaterLevel)
{
float normalizedDepth = 1 - heightMap[x, y] / desiredWaterLevel;
heightMap[x, y] = desiredWaterLevel -
(float)Math.Pow(normalizedDepth, genParams.BelowFuncExponent) *
desiredWaterLevel;
}
else
{
float normalizedHeight = (heightMap[x, y] - desiredWaterLevel) / (1 - desiredWaterLevel);
heightMap[x, y] = desiredWaterLevel +
(float)Math.Pow(normalizedHeight, genParams.AboveFuncExponent) *
(1 - desiredWaterLevel);
}
}
}
}
// Calculate the slope
if (genParams.CliffSmoothing)
{
ReportRelativeProgress(2, "Heightmap Processing: Smoothing");
slopeMap = Noise.CalculateSteepness(Noise.GaussianBlur5X5(heightMap));
}
else
{
slopeMap = Noise.CalculateSteepness(heightMap);
}
// Randomize max height/depth
float[,] altMap = null;
if (genParams.MaxHeightVariation != 0 || genParams.MaxDepthVariation != 0)
{
ReportRelativeProgress(5, "Heightmap Processing: Randomizing");
altMap = new float[map.Width, map.Length];
int blendMapDetailSize = (int)Math.Log(Math.Max(genParams.MapWidth, genParams.MapLength), 2) - 2;
new Noise(rand.Next(), NoiseInterpolationMode.Cosine)
.PerlinNoise(altMap,
Math.Min(blendMapDetailSize, 3),
blendMapDetailSize,
0.5f,
0,
0);
Noise.Normalize(altMap, -1, 1);
}
int snowStartThreshold = snowAltitudeScaled - genParams.SnowTransition;
int snowThreshold = snowAltitudeScaled;
ReportRelativeProgress(10, "Filling");
if (theme.AirBlock != Block.Air)
{
map.Blocks.MemSet((byte)theme.AirBlock);
}
for (int x = heightMap.GetLength(0) - 1; x >= 0; x--)
{
for (int y = heightMap.GetLength(1) - 1; y >= 0; y--)
{
int level;
float slope;
if (heightMap[x, y] < desiredWaterLevel)
{
// for blocks below "sea level"
float depth = maxDepthScaled;
if (altMap != null)
{
depth += altMap[x, y] * genParams.MaxDepthVariation;
}
slope = slopeMap[x, y] * depth;
level = genParams.WaterLevel -
(int)
Math.Round(
Math.Pow(1 - heightMap[x, y] / desiredWaterLevel, genParams.BelowFuncExponent) * depth);
if (genParams.AddWater)
{
if (genParams.WaterLevel - level > 3)
{
map.SetBlock(x, y, genParams.WaterLevel, theme.DeepWaterSurfaceBlock);
}
else
{
map.SetBlock(x, y, genParams.WaterLevel, theme.WaterSurfaceBlock);
}
for (int i = genParams.WaterLevel; i > level; i--)
{
map.SetBlock(x, y, i, theme.WaterBlock);
}
for (int i = level; i >= 0; i--)
{
if (level - i < theme.SeaFloorThickness)
{
map.SetBlock(x, y, i, theme.SeaFloorBlock);
}
else
{
map.SetBlock(x, y, i, theme.BedrockBlock);
}
}
}
else
{
if (blendMap != null && blendMap[x, y] > .25 && blendMap[x, y] < .75)
{
map.SetBlock(x, y, level, theme.CliffBlock);
}
else
{
if (slope < genParams.CliffThreshold)
{
map.SetBlock(x, y, level, theme.GroundSurfaceBlock);
}
else
{
map.SetBlock(x, y, level, theme.CliffBlock);
}
}
for (int i = level - 1; i >= 0; i--)
{
if (level - i < theme.GroundThickness)
{
if (blendMap != null && blendMap[x, y] > CliffsideBlockThreshold &&
blendMap[x, y] < (1 - CliffsideBlockThreshold))
{
map.SetBlock(x, y, i, theme.CliffBlock);
}
else
{
if (slope < genParams.CliffThreshold)
{
map.SetBlock(x, y, i, theme.GroundBlock);
}
else
{
map.SetBlock(x, y, i, theme.CliffBlock);
}
}
}
else
{
map.SetBlock(x, y, i, theme.BedrockBlock);
}
}
}
}
else
{
// for blocks above "sea level"
float height;
if (altMap != null)
{
height = maxHeightScaled + altMap[x, y] * genParams.MaxHeightVariation;
}
else
{
height = maxHeightScaled;
}
slope = slopeMap[x, y] * height;
if (height != 0)
{
level = genParams.WaterLevel +
(int)
Math.Round(
Math.Pow(heightMap[x, y] - desiredWaterLevel, genParams.AboveFuncExponent) *
aboveWaterMultiplier / maxHeightScaled * height);
}
else
{
level = genParams.WaterLevel;
}
bool snow = genParams.AddSnow &&
(level > snowThreshold ||
(level > snowStartThreshold &&
rand.NextDouble() <
(level - snowStartThreshold) / (double)(snowThreshold - snowStartThreshold)));
if (blendMap != null && blendMap[x, y] > .25 && blendMap[x, y] < .75)
{
map.SetBlock(x, y, level, theme.CliffBlock);
}
else
{
if (slope < genParams.CliffThreshold)
{
map.SetBlock(x, y, level, (snow ? theme.SnowBlock : theme.GroundSurfaceBlock));
}
else
{
map.SetBlock(x, y, level, theme.CliffBlock);
}
}
for (int i = level - 1; i >= 0; i--)
{
if (level - i < theme.GroundThickness)
{
if (blendMap != null && blendMap[x, y] > CliffsideBlockThreshold &&
blendMap[x, y] < (1 - CliffsideBlockThreshold))
{
map.SetBlock(x, y, i, theme.CliffBlock);
}
else
{
if (slope < genParams.CliffThreshold)
{
if (snow)
{
map.SetBlock(x, y, i, theme.SnowBlock);
}
else
{
map.SetBlock(x, y, i, theme.GroundBlock);
}
}
else
{
map.SetBlock(x, y, i, theme.CliffBlock);
}
}
}
else
{
map.SetBlock(x, y, i, theme.BedrockBlock);
}
}
}
}
}
if (genParams.AddCaves || genParams.AddOre)
{
AddCaves(map);
}
if (genParams.AddBeaches)
{
ReportRelativeProgress(5, "Processing: Adding beaches");
AddBeaches(map);
}
if (genParams.AddTrees)
{
ReportRelativeProgress(5, "Processing: Planting trees");
if (genParams.AddGiantTrees)
{
Map outMap = new Map(null, map.Width, map.Length, map.Height, false)
{
Blocks = (byte[])map.Blocks.Clone()
};
var foresterArgs = new ForesterArgs {
Map = map,
Rand = rand,
TreeCount =
(int)
(map.Width * map.Length * 4 / (1024f * (genParams.TreeSpacingMax + genParams.TreeSpacingMin) / 2)),
Operation = Forester.ForesterOperation.Add,
PlantOn = theme.GroundSurfaceBlock
};
foresterArgs.BlockPlacing += (sender, e) => outMap.SetBlock(e.Coordinate, e.Block);
Forester.Generate(foresterArgs);
map = outMap;
}
GenerateTrees(map);
}
if (genParams.AddFloodBarrier)
{
MakeFloodBarrier(map);
}
return(map);
}
