Core Game Loop Additions

2026-06-03 22:41:27 -07:00
parent 79ff06a7df
commit 8e9b4412ce
70 changed files with 3084 additions and 2 deletions
@@ -0,0 +1,88 @@
+using ProjectM.Simulation;
+using Unity.Burst;
+using Unity.Collections;
+using Unity.Entities;
+using Unity.Mathematics;
+using Unity.Transforms;
+
+namespace ProjectM.Server
+{
+    /// <summary>
+    /// Server-only procedural expedition-field manager. Edge-triggered off the cycle phase (via the server-only
+    /// <see cref="CycleRuntime.PrevPhase"/>): on ENTERING Expedition for a not-yet-seeded cycle it scatters
+    /// <see cref="ResourceFieldSpawner.Count"/> resource-node ghosts (seeded by CycleNumber via
+    /// <see cref="Unity.Mathematics.Random"/>) around the expedition region origin, each
+    /// <see cref="RegionTag"/>{Expedition}; on LEAVING Expedition it destroys every node. Runs in the plain
+    /// server SimulationSystemGroup <c>[UpdateAfter(CyclePhaseSystem)]</c> so the phase edge is observed the
+    /// same tick. Server-authoritative; clients despawn nodes via GhostDespawnSystem. Per-cycle reproducible
+    /// (the seed is the monotonic int CycleNumber, compared by equality — never tick math; never seed 0).
+    /// </summary>
+    [BurstCompile]
+    [WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation)]
+    [UpdateInGroup(typeof(SimulationSystemGroup))]
+    [UpdateAfter(typeof(CyclePhaseSystem))]
+    public partial struct ExpeditionFieldSystem : ISystem
+    {
+        [BurstCompile]
+        public void OnCreate(ref SystemState state)
+        {
+            state.RequireForUpdate<ResourceFieldSpawner>();
+            state.RequireForUpdate<CycleState>();
+        }
+
+        [BurstCompile]
+        public void OnUpdate(ref SystemState state)
+        {
+            var cycleEntity = SystemAPI.GetSingletonEntity<CycleState>();
+            var cycle = SystemAPI.GetComponent<CycleState>(cycleEntity);
+            var runtime = SystemAPI.GetComponent<CycleRuntime>(cycleEntity);
+            var spawner = SystemAPI.GetSingleton<ResourceFieldSpawner>();
+
+            float3 baseCenter = new float3(0f, 1f, 0f);
+            if (SystemAPI.TryGetSingleton<BaseAnchor>(out var anchor))
+                baseCenter = BaseGridMath.PlotCenter(anchor);
+            float3 origin = RegionMath.RegionOrigin(RegionId.Expedition, baseCenter);
+
+            var ecb = new EntityCommandBuffer(Allocator.Temp);
+
+            // SPAWN edge: entered Expedition for a cycle we have not seeded yet.
+            if (cycle.Phase == CyclePhase.Expedition
+                && runtime.LastSpawnedCycle != cycle.CycleNumber
+                && spawner.Prefab != Entity.Null)
+            {
+                var baseXform = SystemAPI.GetComponent<LocalTransform>(spawner.Prefab);
+                var prefabNode = SystemAPI.GetComponent<ResourceNode>(spawner.Prefab);
+                var rng = new Random((uint)math.max(1, cycle.CycleNumber));
+                int count = math.max(1, spawner.Count);
+                for (int i = 0; i < count; i++)
+                {
+                    var node = ecb.Instantiate(spawner.Prefab);
+
+                    float ang = rng.NextFloat(0f, math.PI * 2f);
+                    float rad = spawner.Radius * math.sqrt(rng.NextFloat(0f, 1f));
+                    var xform = baseXform;
+                    xform.Position = origin + new float3(math.cos(ang) * rad, 0f, math.sin(ang) * rad);
+                    ecb.SetComponent(node, xform);
+
+                    // Round-robin the resource type (Aether / Ore / Biomass) over the prefab's baked node.
+                    var rn = prefabNode;
+                    rn.ResourceId = (byte)(ResourceId.Aether + (byte)(i % 3));
+                    ecb.SetComponent(node, rn);
+                }
+                runtime.LastSpawnedCycle = cycle.CycleNumber;
+            }
+
+            // DESTROY edge: left Expedition — clear the whole field.
+            if (runtime.PrevPhase == CyclePhase.Expedition && cycle.Phase != CyclePhase.Expedition)
+            {
+                foreach (var (rn, e) in SystemAPI.Query<RefRO<ResourceNode>>().WithEntityAccess())
+                    ecb.DestroyEntity(e);
+            }
+
+            runtime.PrevPhase = cycle.Phase;
+            SystemAPI.SetComponent(cycleEntity, runtime);
+
+            ecb.Playback(state.EntityManager);
+        }
+    }
+}