264 lines
12 KiB
C#
264 lines
12 KiB
C#
using SpaceGame.Simulation.Api.Data;
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using SpaceGame.Simulation.Api.Contracts;
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namespace SpaceGame.Simulation.Api.Simulation;
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public sealed partial class SimulationEngine
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{
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private void UpdateStations(SimulationWorld world, float deltaSeconds, ICollection<SimulationEventRecord> events)
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{
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var factionPopulation = new Dictionary<string, float>(StringComparer.Ordinal);
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foreach (var station in world.Stations)
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{
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UpdateStationPopulation(station, deltaSeconds, events);
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ReviewStationMarketOrders(world, station);
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RunStationProduction(world, station, deltaSeconds, events);
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factionPopulation[station.FactionId] = GetInventoryAmount(factionPopulation, station.FactionId) + station.Population;
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}
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foreach (var faction in world.Factions)
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{
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faction.PopulationTotal = GetInventoryAmount(factionPopulation, faction.Id);
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}
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}
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private void UpdateStationPopulation(StationRuntime station, float deltaSeconds, ICollection<SimulationEventRecord> events)
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{
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station.WorkforceRequired = MathF.Max(12f, station.InstalledModules.Count * 14f);
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var requiredWater = station.Population * WaterConsumptionPerWorkerPerSecond * deltaSeconds;
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var consumedWater = RemoveInventory(station.Inventory, "water", requiredWater);
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var waterSatisfied = requiredWater <= 0.01f || consumedWater + 0.001f >= requiredWater;
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var hasPower = station.EnergyStored > 0.01f;
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var habitatModules = CountModules(station.InstalledModules, "habitat-ring");
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station.PopulationCapacity = 40f + (habitatModules * 220f);
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if (waterSatisfied && hasPower)
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{
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if (habitatModules > 0 && station.Population < station.PopulationCapacity)
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{
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station.Population = MathF.Min(station.PopulationCapacity, station.Population + (PopulationGrowthPerSecond * deltaSeconds));
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}
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}
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else if (station.Population > 0f)
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{
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var previous = station.Population;
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station.Population = MathF.Max(0f, station.Population - (PopulationAttritionPerSecond * deltaSeconds));
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if (MathF.Floor(previous) > MathF.Floor(station.Population))
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{
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events.Add(new SimulationEventRecord("station", station.Id, "population-loss", $"{station.Definition.Label} lost population due to support shortages.", DateTimeOffset.UtcNow));
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}
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}
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station.WorkforceEffectiveRatio = ComputeWorkforceRatio(station.Population, station.WorkforceRequired);
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}
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private void ReviewStationMarketOrders(SimulationWorld world, StationRuntime station)
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{
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if (station.CommanderId is null)
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{
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return;
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}
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var desiredOrders = new List<DesiredMarketOrder>();
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var fuelReserve = MathF.Max(80f, CountModules(station.InstalledModules, "power-core") * 140f);
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var waterReserve = MathF.Max(30f, station.Population * 3f);
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var refinedReserve = HasStationModules(station, "fabricator-array") ? 140f : 40f;
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var oreReserve = HasRefineryCapability(station) ? 180f : 0f;
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var gasReserve = CanProcessFuel(station) ? 120f : 0f;
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AddDemandOrder(desiredOrders, station, "fuel", fuelReserve, valuationBase: 1.2f);
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AddDemandOrder(desiredOrders, station, "water", waterReserve, valuationBase: 1.1f);
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AddDemandOrder(desiredOrders, station, "ore", oreReserve, valuationBase: 1.0f);
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AddDemandOrder(desiredOrders, station, "gas", gasReserve, valuationBase: 0.95f);
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AddDemandOrder(desiredOrders, station, "refined-metals", refinedReserve, valuationBase: 1.15f);
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AddSupplyOrder(desiredOrders, station, "fuel", fuelReserve * 1.5f, reserveFloor: fuelReserve, valuationBase: 0.8f);
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AddSupplyOrder(desiredOrders, station, "water", waterReserve * 1.5f, reserveFloor: waterReserve, valuationBase: 0.65f);
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AddSupplyOrder(desiredOrders, station, "ore", oreReserve * 1.4f, reserveFloor: oreReserve, valuationBase: 0.7f);
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AddSupplyOrder(desiredOrders, station, "gas", gasReserve * 1.4f, reserveFloor: gasReserve, valuationBase: 0.72f);
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AddSupplyOrder(desiredOrders, station, "refined-metals", refinedReserve * 1.4f, reserveFloor: refinedReserve, valuationBase: 0.95f);
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ReconcileStationMarketOrders(world, station, desiredOrders);
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}
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private void RunStationProduction(SimulationWorld world, StationRuntime station, float deltaSeconds, ICollection<SimulationEventRecord> events)
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{
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var recipe = SelectProductionRecipe(world, station);
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if (recipe is null || station.EnergyStored <= 0.01f)
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{
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station.ProcessTimer = 0f;
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return;
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}
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if (!TryConsumeStationEnergy(station, world.Balance.Energy.MoveDrain * deltaSeconds))
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{
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station.ProcessTimer = 0f;
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return;
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}
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station.ProcessTimer += deltaSeconds * station.WorkforceEffectiveRatio;
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if (station.ProcessTimer < recipe.Duration)
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{
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return;
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}
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station.ProcessTimer = 0f;
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foreach (var input in recipe.Inputs)
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{
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RemoveInventory(station.Inventory, input.ItemId, input.Amount);
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}
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var produced = 0f;
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foreach (var output in recipe.Outputs)
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{
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produced += TryAddStationInventory(world, station, output.ItemId, output.Amount);
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}
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if (produced <= 0.01f)
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{
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return;
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}
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events.Add(new SimulationEventRecord("station", station.Id, "production-complete", $"{station.Definition.Label} completed {recipe.Label}.", DateTimeOffset.UtcNow));
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var faction = world.Factions.FirstOrDefault(candidate => candidate.Id == station.FactionId);
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if (faction is not null)
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{
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faction.GoodsProduced += produced;
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}
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}
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private static RecipeDefinition? SelectProductionRecipe(SimulationWorld world, StationRuntime station) =>
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world.Recipes.Values
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.Where(recipe => RecipeAppliesToStation(station, recipe))
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.OrderByDescending(recipe => recipe.Priority)
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.FirstOrDefault(recipe => CanRunRecipe(world, station, recipe));
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private static bool RecipeAppliesToStation(StationRuntime station, RecipeDefinition recipe)
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{
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var categoryMatch = string.Equals(station.Definition.Category, recipe.FacilityCategory, StringComparison.Ordinal)
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|| (string.Equals(recipe.FacilityCategory, "station", StringComparison.Ordinal)
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&& station.Definition.Category is "station" or "shipyard" or "defense" or "gate");
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return categoryMatch && recipe.RequiredModules.All(moduleId => station.InstalledModules.Contains(moduleId, StringComparer.Ordinal));
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}
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private static bool CanRunRecipe(SimulationWorld world, StationRuntime station, RecipeDefinition recipe)
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{
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if (recipe.Inputs.Any(input => GetInventoryAmount(station.Inventory, input.ItemId) + 0.001f < input.Amount))
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{
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return false;
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}
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return recipe.Outputs.All(output => CanAcceptStationInventory(world, station, output.ItemId, output.Amount));
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}
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private static bool CanAcceptStationInventory(SimulationWorld world, StationRuntime station, string itemId, float amount)
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{
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if (amount <= 0f || !world.ItemDefinitions.TryGetValue(itemId, out var itemDefinition))
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{
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return false;
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}
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var requiredModule = GetStorageRequirement(itemDefinition.Storage);
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if (requiredModule is not null && !station.InstalledModules.Contains(requiredModule, StringComparer.Ordinal))
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{
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return false;
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}
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if (!station.Definition.Storage.TryGetValue(itemDefinition.Storage, out var capacity))
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{
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return false;
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}
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var used = station.Inventory
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.Where(entry => world.ItemDefinitions.TryGetValue(entry.Key, out var definition) && definition.Storage == itemDefinition.Storage)
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.Sum(entry => entry.Value);
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return used + amount <= capacity + 0.001f;
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}
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private static void AddDemandOrder(ICollection<DesiredMarketOrder> desiredOrders, StationRuntime station, string itemId, float targetAmount, float valuationBase)
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{
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var current = GetInventoryAmount(station.Inventory, itemId);
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if (current >= targetAmount - 0.01f)
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{
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return;
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}
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var deficit = targetAmount - current;
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var scarcity = targetAmount <= 0.01f ? 1f : MathF.Min(1f, deficit / targetAmount);
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desiredOrders.Add(new DesiredMarketOrder(MarketOrderKinds.Buy, itemId, deficit, valuationBase + scarcity, null));
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}
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private static void AddSupplyOrder(ICollection<DesiredMarketOrder> desiredOrders, StationRuntime station, string itemId, float triggerAmount, float reserveFloor, float valuationBase)
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{
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var current = GetInventoryAmount(station.Inventory, itemId);
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if (current <= triggerAmount + 0.01f)
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{
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return;
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}
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var surplus = current - reserveFloor;
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if (surplus <= 0.01f)
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{
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return;
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}
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desiredOrders.Add(new DesiredMarketOrder(MarketOrderKinds.Sell, itemId, surplus, valuationBase, reserveFloor));
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}
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private static void ReconcileStationMarketOrders(SimulationWorld world, StationRuntime station, IReadOnlyCollection<DesiredMarketOrder> desiredOrders)
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{
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var existingOrders = world.MarketOrders
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.Where(order => order.StationId == station.Id && order.ConstructionSiteId is null)
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.ToList();
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foreach (var desired in desiredOrders)
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{
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var order = existingOrders.FirstOrDefault(candidate =>
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candidate.Kind == desired.Kind &&
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candidate.ItemId == desired.ItemId &&
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candidate.ConstructionSiteId is null);
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if (order is null)
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{
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order = new MarketOrderRuntime
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{
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Id = $"market-order-{station.Id}-{desired.Kind}-{desired.ItemId}",
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FactionId = station.FactionId,
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StationId = station.Id,
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Kind = desired.Kind,
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ItemId = desired.ItemId,
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Amount = desired.Amount,
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RemainingAmount = desired.Amount,
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Valuation = desired.Valuation,
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ReserveThreshold = desired.ReserveThreshold,
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State = MarketOrderStateKinds.Open,
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};
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world.MarketOrders.Add(order);
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station.MarketOrderIds.Add(order.Id);
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existingOrders.Add(order);
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continue;
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}
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order.RemainingAmount = desired.Amount;
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order.Valuation = desired.Valuation;
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order.ReserveThreshold = desired.ReserveThreshold;
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order.State = desired.Amount <= 0.01f ? MarketOrderStateKinds.Cancelled : MarketOrderStateKinds.Open;
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}
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foreach (var order in existingOrders.Where(order => desiredOrders.All(desired => desired.Kind != order.Kind || desired.ItemId != order.ItemId)))
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{
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order.RemainingAmount = 0f;
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order.State = MarketOrderStateKinds.Cancelled;
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}
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}
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private static bool HasRefineryCapability(StationRuntime station) =>
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HasStationModules(station, "refinery-stack", "power-core", "bulk-bay");
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private static bool CanProcessFuel(StationRuntime station) =>
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HasStationModules(station, "fuel-processor", "power-core", "gas-tank", "liquid-tank");
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private sealed record DesiredMarketOrder(string Kind, string ItemId, float Amount, float Valuation, float? ReserveThreshold);
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}
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