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Improved Resource Placement Formula

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Resource placement now uses a more straightforward power distribution formula with fixed minimum and maximum and a single value to control curvature
Sector mass and radius now also follow power distribution
This commit is contained in:
hyperion51 2020-05-14 23:20:19 +01:00
commit 17673cd264
6 changed files with 76 additions and 38 deletions
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36
Assets/Scripts/ServerShared/ZoneGenerator.cs
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@ -19,18 +19,28 @@ public class ZoneGenerator
out OrbitData[] orbitData,
out PlanetData[] planetsData)
{
var zoneRadius = lerp(context.GlobalData.MinimumZoneRadius,
var zoneRadius = context.Random.NextPowerDistribution(
context.GlobalData.MinimumZoneRadius,
context.GlobalData.MaximumZoneRadius,
mapLayers.First(m => m.Name == "Radius")
.Evaluate(zone.Position,
context.GlobalData));
context.GlobalData.ZoneRadiusExponent,
1 / lerp(
context.GlobalData.ResourceDensityMinimum,
context.GlobalData.ResourceDensityMaximum,
mapLayers
.First(m => m.Name == "Radius")
.Evaluate(zone.Position, context.GlobalData)));
zone.Radius = zoneRadius;
var zoneMass = lerp(context.GlobalData.MinimumZoneMass,
var zoneMass = context.Random.NextPowerDistribution(
context.GlobalData.MinimumZoneMass,
context.GlobalData.MaximumZoneMass,
mapLayers.First(m => m.Name == "Mass")
.Evaluate(zone.Position,
context.GlobalData));
context.GlobalData.ZoneMassExponent,
1 / lerp(
context.GlobalData.ResourceDensityMinimum,
context.GlobalData.ResourceDensityMaximum,
mapLayers
.First(m => m.Name == "Mass")
.Evaluate(zone.Position, context.GlobalData)));
//Debug.Log($"Generating zone at position {zone.Position} with radius {zoneRadius} and mass {zoneMass}");
@ -76,8 +86,8 @@ public class ZoneGenerator
planet.Mass > context.GlobalData.PlanetMass ? BodyType.Planet : BodyType.Planetoid);
if ((bodyType & r.ResourceBodyType) != 0)
{
float quantity = context.Random.NextUnbounded(r.ResourceDensity.Aggregate(1f, (m, rdm) => m * resourceMaps[rdm]), r.DensityBiasPower, r.RandomCeiling);
if (r.ResourceFloor < quantity) dictionary.Add(r.ID, quantity);
float quantity = ResourceValue(r, context, r.ResourceDensity.Aggregate(1f, (m, rdm) => m * resourceMaps[rdm]));
if (r.Floor < quantity) dictionary.Add(r.ID, quantity);
}
}
@ -107,6 +117,12 @@ public class ZoneGenerator
zone.Planets = planetsData.Select(pd => pd.ID).ToArray();
zone.Orbits = orbitData.Select(od => od.ID).ToList();
}
static float ResourceValue(SimpleCommodityData resource, GameContext context, float density)
{
return context.Random.NextPowerDistribution(resource.Minimum, resource.Maximum, resource.Exponent,
1 / lerp(context.GlobalData.ResourceDensityMinimum, context.GlobalData.ResourceDensityMaximum, density));
}
public static Planet[] GenerateEntities(GameContext context, ZoneData data, float mass, float radius)
{