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Add sub-biomes (#17855)

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This commit is contained in:
metalgearsloth
2023-07-09 15:26:16 +10:00
committed by GitHub
parent af66f0ab8b
commit 9509757155
3 changed files with 108 additions and 0 deletions
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27
Content.Shared/Parallax/Biomes/Layers/BiomeMetaLayer.cs Normal file
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@@ -0,0 +1,27 @@
using Robust.Shared.Noise;
using Robust.Shared.Serialization;
using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
namespace Content.Shared.Parallax.Biomes.Layers;
/// <summary>
/// Contains more biome layers recursively via a biome template.
/// Can be used for sub-biomes.
/// </summary>
[Serializable, NetSerializable]
public sealed class BiomeMetaLayer : IBiomeLayer
{
[DataField("noise")]
public FastNoiseLite Noise { get; } = new(0);
/// <inheritdoc/>
[DataField("threshold")]
public float Threshold { get; } = -1f;
/// <inheritdoc/>
[DataField("invert")]
public bool Invert { get; }
[DataField("template", required: true, customTypeSerializer: typeof(PrototypeIdSerializer<BiomeTemplatePrototype>))]
public string Template = string.Empty;
}

44
Content.Shared/Parallax/Biomes/SharedBiomeSystem.cs
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@@ -106,6 +106,23 @@ public abstract class SharedBiomeSystem : EntitySystem
{
var layer = layers[i];
// Check if the tile is from meta layer, otherwise fall back to default layers.
if (layer is BiomeMetaLayer meta)
{
SetNoise(noise, oldSeed, layer.Noise);
var found = noise.GetNoise(indices.X, indices.Y);
found *= layer.Invert ? -1 : 1;
if (found > layer.Threshold && TryGetBiomeTile(indices, ProtoManager.Index<BiomeTemplatePrototype>(meta.Template).Layers, noise,
grid, out tile))
{
noise.SetSeed(oldSeed);
return true;
}
continue;
}
if (layer is not BiomeTileLayer tileLayer)
continue;
@@ -184,6 +201,8 @@ public abstract class SharedBiomeSystem : EntitySystem
if (!worldLayer.AllowedTiles.Contains(tileId))
continue;
break;
case BiomeMetaLayer:
break;
default:
continue;
@@ -195,7 +214,16 @@ public abstract class SharedBiomeSystem : EntitySystem
value = invert ? value * -1 : value;
if (value < layer.Threshold)
continue;
if (layer is BiomeMetaLayer meta)
{
if (TryGetEntity(indices, ProtoManager.Index<BiomeTemplatePrototype>(meta.Template).Layers, noise, grid, out entity))
{
noise.SetSeed(oldSeed);
return true;
}
continue;
}
@@ -244,6 +272,8 @@ public abstract class SharedBiomeSystem : EntitySystem
if (!worldLayer.AllowedTiles.Contains(tileId))
continue;
break;
case BiomeMetaLayer:
break;
default:
continue;
@@ -252,6 +282,20 @@ public abstract class SharedBiomeSystem : EntitySystem
SetNoise(noise, oldSeed, layer.Noise);
var invert = layer.Invert;
if (layer is BiomeMetaLayer meta)
{
var found = noise.GetNoise(indices.X, indices.Y);
found *= layer.Invert ? -1 : 1;
if (found > layer.Threshold && TryGetDecals(indices, ProtoManager.Index<BiomeTemplatePrototype>(meta.Template).Layers, noise, grid, out decals))
{
noise.SetSeed(oldSeed);
return true;
}
continue;
}
// Check if the other layer should even render, if not then keep going.
if (layer is not BiomeDecalLayer decalLayer)
{

37
Resources/Prototypes/Procedural/biome_templates.yml
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@@ -1,3 +1,40 @@
# Contains several biomes
- type: biomeTemplate
id: Continental
layers:
- !type:BiomeMetaLayer
template: Lava
- !type:BiomeMetaLayer
template: Caves
threshold: -0.5
noise:
frequency: 0.001
noiseType: OpenSimplex2
fractalType: FBm
octaves: 2
lacunarity: 2
gain: 0.5
- !type:BiomeMetaLayer
template: Grasslands
threshold: 0
noise:
frequency: 0.001
noiseType: OpenSimplex2
fractalType: FBm
octaves: 2
lacunarity: 2
gain: 0.5
- !type:BiomeMetaLayer
template: Snow
threshold: 0.5
noise:
frequency: 0.001
noiseType: OpenSimplex2
fractalType: FBm
octaves: 2
lacunarity: 2
gain: 0.5
# Desert
# TODO: Water in desert
- type: biomeTemplate