riversong code showcase

Source/Riversong/Game/World/Agents/Intents/SetFertileTileLockStateIntentExecutionLogic.cs

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+using Cysharp.Threading.Tasks;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class SetFertileTileLockStateIntentExecutionLogic : IntentExecutionLogic
+    {
+        private World _world;
+
+        private ITileSpace _tileSpace;
+
+        public override UniTask InitializeAsync(IServiceLocator serviceLocator)
+        {
+            _world = serviceLocator.GetService<World>();
+            _tileSpace = serviceLocator.GetService<ITileSpace>();
+
+            return UniTask.CompletedTask;
+        }
+
+        public override void OnCanceled(Agent agent, AgentIntent intent)
+        {
+            if (intent.TargetId != Entity.InvalidId) return;
+
+            Unlock(agent);
+        }
+
+        public override IntentExecutionResult Execute(Agent agent, in AgentIntent intent)
+        {
+            return intent.TargetId == Entity.InvalidId ? Unlock(agent) : Lock(agent);
+        }
+
+        private IntentExecutionResult Lock(Agent agent)
+        {
+            ref var path = ref agent.GetPathRW();
+            var tile = path.StepCount > 0 ? path.Steps[^1] : _tileSpace.WorldToTile(agent.Position);
+
+            ref var fertility = ref _world.Fertility.GetValueRW(tile);
+            if (fertility.MaxFertility <= 0 || fertility.CurrentFertility < fertility.MaxFertility || fertility.LockId != Entity.InvalidId) return IntentExecutionResult.Failure;
+
+            fertility.LockId = agent.Id;
+
+            ref var farming = ref agent.GetJobStateRW().Farming;
+            farming.LockedTile = tile;
+
+            return IntentExecutionResult.Success;
+        }
+
+        private IntentExecutionResult Unlock(Agent agent)
+        {
+            ref var farming = ref agent.GetJobStateRW().Farming;
+            if (farming.LockedTile == null) return IntentExecutionResult.Success;
+
+            var tile = farming.LockedTile.Value;
+            ref var fertility = ref _world.Fertility.GetValueRW(tile);
+            if (fertility.LockId == agent.Id) fertility.LockId = Entity.InvalidId;
+
+            farming.LockedTile = null;
+
+            return IntentExecutionResult.Success;
+        }
+    }
+}