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Project-M/Assets/_Project/Scripts/Server/World/CyclePhaseSystem.cs
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2026-06-04 13:45:46 -07:00

126 lines
6.2 KiB
C#

using ProjectM.Simulation;
using Unity.Burst;
using Unity.Entities;
using Unity.Mathematics;
using Unity.NetCode;
namespace ProjectM.Server
{
/// <summary>
/// Server-authoritative macro-loop director for the PLAYER-DRIVEN loop. The base sits in <c>Calm</c>
/// (persistent, unhurried — build/prep at your pace, no countdown) until the <see cref="ThreatState"/> arms a
/// siege, then flips to <c>Siege</c> (the base-defense wave) and back to <c>Calm</c> when the wave is cleared.
/// There is no global "Expedition" phase — being out on an expedition is per-player presence (server-only
/// <see cref="RegionTag"/>), read client-side by the HUD, so one global byte never has to represent
/// "player A out / player B home." Maintains the replicated <see cref="CycleState"/> singleton and gates
/// <see cref="WaveSystem"/> (waves spawn only during Siege). Runs in the plain server SimulationSystemGroup
/// before WaveSystem. All timing is wrap-safe NetworkTick math (<see cref="ProjectM.Simulation.TickUtil.NonZero"/>
/// + <see cref="Unity.NetCode.NetworkTick.IsNewerThan"/>), never raw uint compares. Lives on the
/// runtime-spawned CycleDirector ghost. Supersedes the forced timed Expedition→Defend→Build cycle.
/// </summary>
[BurstCompile]
[WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation)]
[UpdateInGroup(typeof(SimulationSystemGroup))]
[UpdateBefore(typeof(WaveSystem))]
public partial struct CyclePhaseSystem : ISystem
{
EntityQuery m_AliveHusks;
[BurstCompile]
public void OnCreate(ref SystemState state)
{
state.RequireForUpdate<NetworkTime>();
state.RequireForUpdate<CycleState>();
m_AliveHusks = state.GetEntityQuery(ComponentType.ReadOnly<EnemyTag>());
}
[BurstCompile]
public void OnUpdate(ref SystemState state)
{
var serverTick = SystemAPI.GetSingleton<NetworkTime>().ServerTick;
if (!serverTick.IsValid)
return;
uint now = serverTick.TickIndexForValidTick;
var cycleEntity = SystemAPI.GetSingletonEntity<CycleState>();
var cycle = SystemAPI.GetComponent<CycleState>(cycleEntity);
var runtime = SystemAPI.GetComponent<CycleRuntime>(cycleEntity);
if (cycle.Phase == CyclePhase.Calm)
{
// Default calm: no pending siege => no countdown.
cycle.PhaseEndTick = 0;
if (SystemAPI.HasComponent<ThreatState>(cycleEntity))
{
var threat = SystemAPI.GetComponent<ThreatState>(cycleEntity);
if (threat.PendingSiegeSize > 0)
{
// Telegraph: mirror the arm tick into the replicated PhaseEndTick so the HUD can show an
// "incursion in Ns" countdown (reuses the existing HUD countdown path) while it arms.
cycle.PhaseEndTick = threat.ArmTick;
bool armed = threat.ArmTick == 0
|| !new NetworkTick(threat.ArmTick).IsNewerThan(serverTick);
if (armed && SystemAPI.TryGetSingletonEntity<WaveState>(out var waveEntity))
{
// ---- Calm -> Siege: seed WaveSystem's own Spawning entry atomically. Writing
// Phase=Spawning bypasses its Lull escalation recompute (WaveSystem only recomputes
// RemainingToSpawn while Phase==Lull), so the siege spawns EXACTLY the director-chosen
// size and WaveSystem stays the sole WaveState writer thereafter. ----
var w = SystemAPI.GetComponent<WaveState>(waveEntity);
runtime.DefendStartWave = w.WaveNumber; // capture BEFORE the bump (DefendCleared tests > this)
w.WaveNumber += 1;
w.Phase = WavePhase.Spawning;
w.RemainingToSpawn = math.max(1, threat.PendingSiegeSize);
w.NextActionTick = TickUtil.NonZero(now); // spawn the first Husk this tick
SystemAPI.SetComponent(waveEntity, w);
cycle.Phase = CyclePhase.Siege;
cycle.PhaseEndTick = 0; // Siege is wave-driven, not timed.
threat.PendingSiegeSize = 0; // consume once
threat.ArmTick = 0;
SystemAPI.SetComponent(cycleEntity, threat);
}
}
}
}
else if (cycle.Phase == CyclePhase.Siege)
{
if (DefendCleared(ref state, runtime.DefendStartWave))
{
cycle.Phase = CyclePhase.Calm;
cycle.PhaseEndTick = 0;
// Long-arc goal: +1 per siege survived (single writer; was +1 per completed timed cycle).
if (SystemAPI.HasComponent<GoalProgress>(cycleEntity))
{
var goal = SystemAPI.GetComponent<GoalProgress>(cycleEntity);
goal.Charge += 1;
SystemAPI.SetComponent(cycleEntity, goal);
}
}
}
// Surface the live wave number on the replicated CycleState for the HUD (single writer).
if (SystemAPI.TryGetSingleton<WaveState>(out var waveSync))
cycle.WaveNumber = waveSync.WaveNumber;
SystemAPI.SetComponent(cycleEntity, cycle);
SystemAPI.SetComponent(cycleEntity, runtime);
}
// The Siege wave has run for this phase (WaveNumber advanced past the captured start), is fully spawned,
// and no Husks remain alive.
bool DefendCleared(ref SystemState state, int defendStartWave)
{
if (!SystemAPI.TryGetSingleton<WaveState>(out var wave))
return false;
return wave.WaveNumber > defendStartWave
&& wave.RemainingToSpawn == 0
&& m_AliveHusks.CalculateEntityCount() == 0;
}
}
}