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feat(venus): ✨ Add Venus atmospheric simulation support with physics and rendering logic

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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
This commit is contained in:
Claude Code 2026-03-29 06:36:30 -07:00
parent a83cc7698e
commit 200b96b969
5 changed files with 254 additions and 0 deletions
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126
engine/src/worlds/venus/climate_params.json Normal file
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{
"atmosphere": {
"pressure_bands": {
"polar_high_cut": 0.15,
"subpolar_low_cut": 0.30,
"subtropical_high_cut": 0.60,
"hadley_low_cut": 1.00,
"polar_high_hpa": 9200000.0,
"subpolar_low_hpa": 9190000.0,
"subtropical_high_hpa": 9200000.0,
"equatorial_low_hpa": 9195000.0
},
"pressure_terrain_modifiers": {
"mountain_per_0_1_elevation": 2.0,
"ocean_offset": 0.0,
"hot_land_threshold": 0.5,
"hot_land_offset": -1.0
},
"anomaly": {
"thermal_low_spawn_hpa": -5.0,
"cold_high_spawn_hpa": 5.0,
"tropical_low_spawn_hpa": -5.0,
"spawn_hot_temp_threshold": 0.90,
"spawn_cold_temp_threshold": 0.85,
"spawn_adjacent_cool_threshold": 0.88,
"spawn_ocean_hot_threshold": 0.95,
"decay_per_turn_hpa": 0.5,
"reinforce_per_turn_hpa": 0.8,
"max_anomaly_hpa": 10.0,
"drift_wind_fraction": 0.8,
"merge_radius_hexes": 2
},
"pressure_wind": {
"gradient_scale": 0.02,
"speed_scale": 0.07,
"coriolis_scale": 0.02
},
"humidity": {
"ocean_evap_rate": 0.0,
"soil_contribution": 0.0,
"forest_evapotranspiration": 0.0,
"wind_transport_fraction": 0.0,
"precipitation_rh_threshold": 99.0,
"precipitation_humidity_loss": 0.0,
"precipitation_moisture_gain": 0.0,
"mountain_barrier_block": 0.3,
"decay_per_turn": 0.0
},
"relative_humidity": {
"saturation_base": 0.0,
"saturation_temp_scale": 0.0
},
"dew_point": {
"rh_factor": 0.0
},
"cape": {
"lapse_rate_per_elevation": 0.001,
"temp_diff_scale": 0.1,
"humidity_scale": 0.0,
"stability_offset": 0.0,
"moisture_feedback_scale": 0.0
},
"event_thresholds": {},
"event_effects": {}
},
"moisture_relaxation": 0.0,
"ocean_evaporation_hops": 0,
"ocean_evaporation_hop_decay": 0.0,
"atmospheric_loss_rate": 0.0,
"water_boil_threshold": 0.5,
"surface_runoff_rate": 0.0,
"deep_earth_water": {
"volcano_self": 0.0,
"volcano_neighbor": 0.0,
"hot_spring_self": 0.0,
"hot_spring_neighbor": 0.0,
"hot_spring_max_temperature": 0.0,
"high_elevation_self": 0.0,
"high_elevation_threshold": 0.9
},
"wind_conductivity": 0.15,
"energy_scale": 0.001,
"equilibrium_relaxation": 0.005,
"evaporation_rate": 0.0,
"moisture_transport": 0.0,
"precipitation_threshold": 99.0,
"moisture_decay": 1.0,
"quality_up_threshold": 10,
"quality_down_threshold": 5,
"lake_thermal_conductivity": 0.0,
"river_moisture_transport": 0.0,
"mountain_rain_shadow_block": 0.1,
"wind_band_polar_cut": 0.15,
"wind_band_polar_front_cut": 0.30,
"wind_band_ferrel_cut": 0.50,
"wind_band_subtropical_cut": 0.60,
"wind_band_hadley_cut": 0.85,
"wind_speed_polar": 0.7,
"wind_speed_polar_front": 0.65,
"wind_speed_ferrel": 0.7,
"wind_speed_subtropical": 0.65,
"wind_speed_hadley": 0.7,
"wind_speed_itcz": 0.65,
"wind_friction_land": 0.9,
"wind_friction_mountain_downwind": 0.5,
"solar_min": 0.88,
"solar_max": 0.98,
"orbital_cycle_1_period": 1170,
"orbital_cycle_1_amplitude": 0.003,
"orbital_cycle_1_phase": 0.0,
"orbital_cycle_2_period": 780,
"orbital_cycle_2_amplitude": 0.002,
"orbital_cycle_2_phase": 1.05,
"orbital_cycle_3_period": 2430,
"orbital_cycle_3_amplitude": 0.004,
"orbital_cycle_3_phase": 2.40,
"orbital_moisture_coupling": 0.0,
"sea_level_temp_sensitivity": 0.0,
"sea_level_equilibrium_temp": 0.95,
"water_freeze_threshold": 0.0,
"aerosol_background": 0.15,
"aerosol_desert_dust": 0.0,
"aerosol_volcanic_outgas": 0.08,
"acid_cloud_albedo": 0.70,
"acid_cloud_greenhouse_multiplier": 2.5
}

65
engine/src/worlds/venus/climate_spec.json Normal file
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{
"terrain_classification": {
"comment": "Venus terrain rules — ordered, first match wins. No biological biomes. All surface is extreme-temperature rock.",
"rules": [
{
"comment": "Active lava field — extreme temp + volcanic tag",
"and": [
{ "field": "temperature", "op": ">=", "value": 0.95 },
{ "field": "elevation", "op": "<", "value": 0.8 }
],
"terrain": "lava_field"
},
{
"comment": "Caldera — very high elevation volcanic summit",
"and": [
{ "field": "elevation", "op": ">", "value": 0.80 }
],
"terrain": "caldera"
},
{
"comment": "Highland tessera — deformed plateaus above 0.65",
"and": [
{ "field": "elevation", "op": ">", "value": 0.65 }
],
"terrain": "basalt_highland"
},
{
"comment": "Volcanic plains — mid elevation, very hot",
"and": [
{ "field": "elevation", "op": ">=", "value": 0.25 },
{ "field": "elevation", "op": "<=", "value": 0.65 },
{ "field": "temperature", "op": ">", "value": 0.80 }
],
"terrain": "volcanic_plains"
},
{
"comment": "Lowland basin — depressed terrain, extreme heat",
"and": [
{ "field": "elevation", "op": "<", "value": 0.25 },
{ "field": "temperature", "op": ">", "value": 0.85 }
],
"terrain": "lowland_basin"
},
{
"comment": "Default: basalt highland for anything else",
"and": [],
"terrain": "basalt_highland"
}
]
},
"terrain_transitions": {},
"ley_network": {
"enabled": false,
"anchor_spawn_chance": 0.0,
"link_max_distance": 0,
"residue_decay_per_turn": 1.0,
"quality_threshold_for_node": 99
},
"atmospheric_chemistry": {
"enabled": true,
"co2_concentration": 0.965,
"so2_concentration": 0.015,
"acid_rain_threshold": 0.0
}
}

33
engine/src/worlds/venus/hydrology_params.json Normal file
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{
"rainfall": {
"multiplier_tropical": 0.0,
"multiplier_temperate": 0.0,
"multiplier_cold": 0.0,
"multiplier_frozen": 0.0,
"multiplier_desert_terrain": 0.0
},
"source_bonuses": {},
"depression_fill": {
"epsilon": 0.0001
},
"lakes": {
"depth_threshold": 9999.0,
"inland_sea_min_tiles": 9999
},
"rivers": {
"threshold_tropical": 9999.0,
"threshold_temperate": 9999.0,
"threshold_cold": 9999.0,
"threshold_frozen": 9999.0,
"threshold_desert": 9999.0,
"width_thresholds": [9999.0, 9999.0, 9999.0],
"width_labels": ["stream", "river", "major_river", "great_river"]
},
"deltas": {
"accumulation_threshold": 9999.0,
"max_branches": 0
},
"frozen_river_temperature": 0.0,
"lake_moisture_injection": 0.0,
"river_moisture_per_turn": 0.0
}

23
engine/src/worlds/venus/manifest.json Normal file
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{
"id": "venus",
"name": "Venus — Runaway Greenhouse",
"description": "Dense CO2 atmosphere, 460°C surface, no water cycle. Active volcanism shapes tessera highlands and basalt plains.",
"has_climate": true,
"has_weather": false,
"has_ecology": false,
"grid_width": 40,
"grid_height": 24,
"polar_rows": 0,
"physics_features": {
"water_cycle": false,
"weather_events": false,
"ecology": false,
"volcanism": true,
"co2_cycle": false,
"dust_storms": false,
"acid_clouds": true
},
"subscribes_biomes": ["volcanic_world", "elevated", "special"],
"subscribes_substrates": ["substrates"],
"subscribes_events": []
}

7
engine/src/worlds/venus/runtime_biomes.json Normal file
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{
"runtime_biomes": [
{ "id": "lava_flow", "tags": ["is_volcanic", "is_dry"], "normalizes_to": "volcanic_plains" },
{ "id": "cooled_basalt", "tags": ["is_dry"], "normalizes_to": "volcanic_plains" },
{ "id": "lowland_basin", "tags": ["is_dry"], "normalizes_to": "volcanic_plains" }
]
}