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New terrain generation for the vents #6591

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477978e
Cave and vents terrain prototypes
Patryk26g Dec 4, 2025
0f7edad
Spawning improvements
Patryk26g Dec 11, 2025
a1da19d
File structure changes
Patryk26g Dec 11, 2025
9ed168f
Change spawn logic
Patryk26g Dec 14, 2025
c523691
Spawn changes
Patryk26g Dec 17, 2025
e20d081
Merge branch 'refs/heads/master' into new_terrains
Patryk26g Dec 17, 2025
1829868
Optimize collision shapes and lower the microbe background plane down
Patryk26g Dec 19, 2025
831d473
Revert to previous grid spawning logic, fix grid borders and increase…
Patryk26g Dec 20, 2025
dde59ef
Remove new cave terrain generation (will be in a different PR) and de…
Patryk26g Dec 20, 2025
fb1d39c
Code cleanup
Patryk26g Dec 20, 2025
deeadaf
Blank lines before comments
Patryk26g Dec 20, 2025
7012875
Fix error prints
Patryk26g Dec 20, 2025
06c27ee
Fix despawning I just messed up
Patryk26g Dec 20, 2025
8cf131e
Improve spawning of chunks without collisions
Patryk26g Dec 21, 2025
55f1fd6
Increase terrain spawning area
Patryk26g Dec 21, 2025
531004b
Remove comment
Patryk26g Dec 21, 2025
3663457
Merge branch 'master' into new_terrains
Patryk26g Jan 16, 2026
fca6495
Revert some changes
Patryk26g Jan 18, 2026
c75715a
Merge branch 'master' into new_terrains
Patryk26g Feb 3, 2026
082a4f3
Fixes
Patryk26g Feb 4, 2026
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17 changes: 14 additions & 3 deletions simulation_parameters/Constants.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -188,8 +188,10 @@ public static class Constants

public const float CLOUD_CHEAT_DENSITY = 16000.0f;

public const float TERRAIN_GRID_SIZE = 200;
public const float TERRAIN_GRID_SIZE_INV = 1 / TERRAIN_GRID_SIZE;
public const float TERRAIN_GRID_SIZE_X = 330;
public const float TERRAIN_GRID_SIZE_Z = 315;
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@hhyyrylainen hhyyrylainen Jan 7, 2026

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These grid sizes seem a bit specific... Any reason why not a round number like 300?

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@Patryk26g Patryk26g Jan 10, 2026 •
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well, when I was messing with it it used to be more rectangular since the screens are wider, so that chunks would spawn further horizontally and less vertically (for example 200x300 but with such low difference now it doesn't make sense to keep it)

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@hhyyrylainen hhyyrylainen Jan 10, 2026

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That doesn't fully make sense to me because the spawn system spawn radius is a circle, so having more horizontal space doesn't really help with stuck-in-terrain spawns...

public const float TERRAIN_GRID_SIZE_INV_X = 1 / TERRAIN_GRID_SIZE_X;
public const float TERRAIN_GRID_SIZE_INV_Z = 1 / TERRAIN_GRID_SIZE_Z;
public const float TERRAIN_EDGE_PROTECTION_SIZE = 1;

/// <summary>
Expand All @@ -202,7 +204,16 @@ public static class Constants
/// If too low, then pop in is visible and the spawn system can spawn stuff in that then gets covered
/// by the terrain.
/// </summary>
public const int TERRAIN_SPAWN_AREA_NUMBER = 4;
public const int TERRAIN_SPAWN_AREA_NUMBER = 1;

public const int TERRAIN_VENT_SEGMENTS = 6;
public const int TERRAIN_VENT_RINGS_MAX = 5;
public const int TERRAIN_VENT_RINGS_MIN = 2;
public const int TERRAIN_SECOND_VENT_RINGS_MIN_THRESHOLD = 3;
public const float TERRAIN_SECOND_VENT_CHANCE = 0.4f;
public const int TERRAIN_VENT_OVERLAP_MARGIN = 2;
public const int TERRAIN_VENT_RING_HEIGHT_REDUCTION = 10;
public const int TERRAIN_VENT_OUTER_RING_HEIGHT = -27;
Comment on lines +201 to +208
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@hhyyrylainen hhyyrylainen Jan 7, 2026

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I haven't read all the code yet, but my impression is that these would be nice to configure from the JSON.


public const int MEMBRANE_RESOLUTION = 10;
public const int MEMBRANE_VERTICAL_RESOLUTION = 7;
Expand Down
177 changes: 28 additions & 149 deletions simulation_parameters/microbe_stage/biomes.json
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Original file line number Diff line number Diff line change
Expand Up @@ -543,11 +543,12 @@
}
},
"Terrain": {
"MinClusters": 0,
"MaxClusters": 5,
"MinClusters": 2,
"MaxClusters": 8,
"PotentialClusters": [
{
"RelativeChance": 1,
"SpawnStrategy": 1,
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@hhyyrylainen hhyyrylainen Jan 7, 2026

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Please use enum value names here in the JSON so that it is easy to read.

"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -559,32 +560,18 @@
{
"Visuals": "PyriteTerrain1",
"CollisionShapePath": "res://assets/models/microbe_terrain/PyriteTerrainChunk1.shape",
"Radius": 14.6,
"Radius": 13,
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "PyriteTerrain2",
"CollisionShapePath": "res://assets/models/microbe_terrain/PyriteTerrainChunk2.shape",
"Radius": 18,
"Radius": 13,
"RelativePosition": {
"x": 0,
"y": 0,
Expand All @@ -598,6 +585,7 @@
},
{
"RelativeChance": 1,
"SpawnStrategy": 1,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -616,21 +604,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "ChalcopyriteTerrain2",
"CollisionShapePath": "res://assets/models/microbe_terrain/ChalcopyriteTerrainChunk2.shape",
Expand All @@ -647,7 +621,8 @@
]
},
{
"RelativeChance": 1,
"RelativeChance": 2,
"SpawnStrategy": 1,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -666,25 +641,11 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "SerpentiniteTerrain2",
"CollisionShapePath": "res://assets/models/microbe_terrain/SerpentiniteTerrainChunk2.shape",
"Radius": 17.5,
"Radius": 13.5,
"RelativePosition": {
"x": 0,
"y": 0,
Expand All @@ -697,7 +658,7 @@
]
},
{
"RelativeChance": 1,
"RelativeChance": 7,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -716,21 +677,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "BariteTerrainChunk2",
"CollisionShapePath": "res://assets/models/microbe_terrain/BariteTerrainChunk2.shape",
Expand All @@ -747,7 +694,8 @@
]
},
{
"RelativeChance": 1,
"RelativeChance": 3,
"SpawnStrategy": 1,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -766,21 +714,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "CalciteTerrainChunk2",
"CollisionShapePath": "res://assets/models/microbe_terrain/CalciteTerrainChunk2.shape",
Expand All @@ -797,7 +731,8 @@
]
},
{
"RelativeChance": 1,
"RelativeChance": 3,
"SpawnStrategy": 1,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -816,21 +751,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "QuartzTerrain2",
"CollisionShapePath": "res://assets/models/microbe_terrain/QuartzTerrainChunk2.shape",
Expand All @@ -841,25 +762,11 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "QuartzTerrain3",
"CollisionShapePath": "res://assets/models/microbe_terrain/QuartzTerrainChunk3.shape",
"Radius": 13.1,
"Radius": 12,
"RelativePosition": {
"x": 0,
"y": 0,
Expand Down Expand Up @@ -3265,11 +3172,11 @@
}
},
"Terrain": {
"MinClusters": 4,
"MaxClusters": 8,
"MinClusters": 2,
"MaxClusters": 7,
"PotentialClusters": [
{
"RelativeChance": 1,
"RelativeChance": 3,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -3288,21 +3195,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "CalciteTerrainChunk2",
"CollisionShapePath": "res://assets/models/microbe_terrain/CalciteTerrainChunk2.shape",
Expand All @@ -3319,7 +3212,7 @@
]
},
{
"RelativeChance": 1,
"RelativeChance": 2,
"TerrainGroups": [
{
"RelativePosition": {
Expand All @@ -3338,21 +3231,7 @@
"z": 0
},
"RandomizeRotation": true
}
]
}
]
},
{
"RelativeChance": 1,
"TerrainGroups": [
{
"RelativePosition": {
"x": 0,
"y": 0,
"z": 0
},
"Chunks": [
},
{
"Visuals": "BasaltTerrainChunk2",
"CollisionShapePath": "res://assets/models/microbe_terrain/BasaltTerrainChunk2.shape",
Expand Down
1 change: 1 addition & 0 deletions src/microbe_stage/MicrobeCamera.tscn
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Expand Up @@ -16,3 +16,4 @@ backgroundPlane = NodePath("BackgroundPlane")
current = true

[node name="BackgroundPlane" parent="." instance=ExtResource("2_yrakl")]
transform = Transform3D(1.1, 0, 0, 0, 1.1, 0, 0, 0, 1.1, 0, 0, -10)
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@hhyyrylainen hhyyrylainen Jan 7, 2026

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What's this change?

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@Patryk26g Patryk26g Jan 10, 2026

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Like I said in the description, I lowered the background image a bit

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@hhyyrylainen hhyyrylainen Jan 10, 2026

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Ah, okay.
Did you test with the max multicellular zoom out distance to see if the edges of the plane are visible?

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@Patryk26g Patryk26g Jan 10, 2026

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Well, I also increased the size of the background to negate it but I will have to check

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@hhyyrylainen hhyyrylainen Jan 10, 2026

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Somehow I missed that. Otherwise I would have made sure the size to UV ratio is the same so that the visuals aren't stretched differently than before.

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