riversong code showcase

2026-05-21 15:52:18 +02:00
commit 4c9eea1c02
462 changed files with 23406 additions and 0 deletions
--- a/Source/Riversong/Game/World/Population/PopulationUpdateSystem.cs
+++ b/Source/Riversong/Game/World/Population/PopulationUpdateSystem.cs
@@ -0,0 +1,89 @@
+using Cysharp.Threading.Tasks;
+using Unity.Mathematics;
+using UnityEngine;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    [UpdateAfter(typeof(PopulationNeedsSystem))]
+    public class PopulationUpdateSystem : GameSystem, IInitializable, IUpdatable
+    {
+        [InjectService]
+        private ISignalBus _signalBus;
+
+        [InjectService]
+        private World _world;
+
+        [InjectService]
+        private IEntityCache _entityCache;
+
+        [InjectService]
+        private GameConfig _config;
+
+        public PopulationUpdateSystem(IServiceLocator serviceLocator) : base(serviceLocator)
+        {
+        }
+
+        public UniTask InitializeAsync()
+        {
+            _world.PopulationState.Happiness = _config.Population.InitialeOverallHappiness;
+
+            return UniTask.CompletedTask;
+        }
+
+        public void Update()
+        {
+            if (_world.TimeState.DayNightCycleStep != DayNightCycleStep.Day) return;
+
+            UpdateOverallHappiness();
+            UpdatePopulation();
+        }
+
+        private void UpdateOverallHappiness()
+        {
+            var targetHappiness = 0f;
+            var totalWeight = 0f;
+
+            foreach (var house in _entityCache.GetHouses())
+            {
+                ref var needsState = ref house.GetNeedsStateRW();
+                targetHappiness += needsState.OverallHappinessWeight * needsState.Happiness;
+                totalWeight += needsState.OverallHappinessWeight;
+            }
+
+            if (totalWeight > 0) targetHappiness = math.saturate(targetHappiness / totalWeight);
+
+            var grace = _world.TimeState.TotalWeeks < _config.Population.GraceWeekCount;
+            if (grace) targetHappiness = math.max(targetHappiness, _config.Population.GraceMinHappiness);
+
+            var populationState = _world.PopulationState;
+            var delta = math.abs(targetHappiness - populationState.Happiness);
+            const float halfOnePercent = 0.005f;
+            populationState.Sentiment = delta > halfOnePercent ? math.sign(targetHappiness - populationState.Happiness) : 0;
+            populationState.Happiness = Mathf.MoveTowards(populationState.Happiness, targetHappiness, _config.Population.OverallHappinessChangeRate * Time.deltaTime);
+            populationState.Happiness = math.saturate(populationState.Happiness);
+        }
+
+        private void UpdatePopulation()
+        {
+            var populationState = _world.PopulationState;
+
+            populationState.PopulationCapacity = 0;
+            foreach (var house in _entityCache.GetHouses()) populationState.PopulationCapacity += house.PopulationCapacity;
+
+            var growthRate = _config.Population.GrowthRatePeakValue * _config.Population.GrowthRateCurve.Evaluate(populationState.Happiness);
+            if (populationState.Sentiment > 0) growthRate = math.max(growthRate, 0);
+
+            populationState.GrowthAccumulator += growthRate * Time.deltaTime;
+            if (math.abs(populationState.GrowthAccumulator) < 1) return;
+
+            var delta = (int)math.sign(populationState.GrowthAccumulator);
+            populationState.GrowthAccumulator -= delta;
+
+            var updatedPopulation = math.clamp(populationState.Population + delta, 0, populationState.PopulationCapacity);
+            if (updatedPopulation == populationState.Population) return;
+
+            populationState.Population = updatedPopulation;
+            _signalBus.Raise(new PopulationChangedSignal(updatedPopulation));
+        }
+    }
+}