Integrate finite physical mortar assets and archive inventory regression
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// Owned and ticked by HQ. Initial assets are authored once; losses are never replaced.
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class ERR_MortarSystem
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{
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protected ERR_HQ m_HQ;
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protected ref array<ref ERR_MortarBattery> m_Batteries = {};
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protected ref ERR_SettlementSafety m_Settlements = new ERR_SettlementSafety();
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protected bool m_Prepared;
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protected bool m_Stopped;
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protected float m_NextDecision;
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string SafetyReason;
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string SettlementReason;
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void ERR_MortarSystem(ERR_HQ hq) { m_HQ = hq; }
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static ERR_MortarSystem Get()
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{
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ERR_HQ hq = ERR_HQ.Get();
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if (!hq || !Replication.IsServer()) return null;
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return hq.Mortars();
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}
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static bool NearPlayer(vector position)
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{
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array<IEntity> players = {};
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ERR_Actors.Players(players);
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foreach (IEntity player : players)
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if (vector.DistanceXZ(player.GetOrigin(), position) <= 1200) return true;
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return false;
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}
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bool Prepare()
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{
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if (!Replication.IsServer() || m_Prepared || m_Stopped) return false;
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m_Prepared = true;
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vector position = ERR_Actors.Ground("6000 0 7000");
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if (position[1] < 1) return false;
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IEntity gun = ERR_Actors.Spawn(ERR_MortarBattery.GUN, position);
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SCR_AIGroup group = SCR_AIGroup.Cast(ERR_Actors.Spawn(MortarGroup(), ERR_Actors.Ground(position + "0 0 4")));
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if (!gun || !group)
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{
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ERR_Actors.DeleteSpawned(gun);
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ERR_Actors.DeleteSpawned(group);
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return false;
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}
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group.InitFactionKey("USSR");
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FactionAffiliationComponent affiliation = FactionAffiliationComponent.Cast(gun.FindComponent(FactionAffiliationComponent));
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if (affiliation) affiliation.SetAffiliatedFaction(ERR_GameMode.Get().EnemyFaction());
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ERR_MortarBattery battery = new ERR_MortarBattery();
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battery.Bind(1, group, gun, GetGame().GetWorld().GetWorldTime());
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m_Batteries.Insert(battery);
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ERR_GameMode mode = ERR_GameMode.Get();
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mode.Own(gun);
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mode.RegisterGroup(group);
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m_HQ.ReserveGroup(group);
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battery.Audit("DEPLOY", "authored gun and four-person crew; finite ammunition initialization pending");
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return true;
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}
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static ResourceName MortarGroup() { return "{B84C05941C4C81B8}Prefabs/ERR/MortarCrew.et"; }
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ERR_MortarBattery FindGun(IEntity gun)
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{
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foreach (ERR_MortarBattery battery : m_Batteries)
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if (gun && battery.Gun == gun) return battery;
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return null;
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}
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ERR_MortarBattery FindGroup(SCR_AIGroup group)
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{
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foreach (ERR_MortarBattery battery : m_Batteries)
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if (group && battery.Group == group) return battery;
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return null;
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}
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ERR_HQReport Latest(ERR_MortarBattery battery, float now)
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{
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// Only the coordinates actually delivered to this battery are available.
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// A newer HQ contact cannot update a gun's knowledge without another downlink.
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if (!battery || !ERR_MortarPrediction.Fresh(battery.Report, now)) return null;
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return battery.Report;
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}
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string ContactFailure(ERR_MortarBattery battery)
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{
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if (!battery.Report) return "no delivered target report";
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return "delivered target report expired or invalid";
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}
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bool OutsideSettlements(vector impact)
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{
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bool clear = m_Settlements.OutsideSettlements(impact);
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SettlementReason = m_Settlements.SettlementReason;
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return clear;
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}
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bool Safe(ERR_MortarBattery battery, vector impact, float flight)
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{
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SafetyReason = "clear";
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if (!battery.Operational()) { SafetyReason = battery.OperationalReason(); return false; }
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if (!OutsideSettlements(impact)) { SafetyReason = SettlementReason; return false; }
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if (SCR_TerrainHelper.GetTerrainY(impact) < 0) { SafetyReason = "impact below Everon sea level"; return false; }
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Faction faction = battery.Group.GetFaction();
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if (!faction) { SafetyReason = "battery faction missing"; return false; }
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array<IEntity> friendlies = {};
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m_HQ.PhysicalForces(friendlies);
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foreach (IEntity entity : friendlies)
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{
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Faction friendly = SCR_FactionManager.SGetFaction(entity);
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if (!friendly || faction.IsFactionEnemy(friendly) || !ERR_Actors.Alive(entity)) continue;
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vector velocity;
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IEntity moving = CompartmentAccessComponent.GetVehicleIn(entity);
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if (!moving) moving = entity;
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if (moving.GetPhysics()) velocity = moving.GetPhysics().GetVelocity();
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if (ERR_MortarPrediction.ThreatensFriendly(impact, entity.GetOrigin(), velocity, flight))
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{
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SafetyReason = "friendly physical force can enter the impact area";
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return false;
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}
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}
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return true;
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}
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bool Withhold(ERR_MortarBattery battery, string reason, string detail = "")
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{
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battery.LastFailure = reason + "; " + detail;
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battery.Trace("WITHHELD", reason, detail);
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// Finish the activity from the next HQ tick, never from inside its own node.
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battery.Rejected = true;
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return false;
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}
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bool AllowShot(ERR_MortarBattery battery)
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{
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float now = GetGame().GetWorld().GetWorldTime();
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if (!ERR_HQ.MissionActive()) return Withhold(battery, "mission inactive");
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if (!battery.Operational()) return Withhold(battery, battery.OperationalReason());
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if (!battery.CommandOpen || battery.OrderShots >= ERR_MortarSalvo.ROUNDS) return Withhold(battery, "salvo complete or order closed");
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if (battery.Released) return Withhold(battery, "waiting for committed projectile");
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if (battery.AimedShot != battery.OrderShots || battery.AimedAt < 0 || now - battery.AimedAt > 10000) return Withhold(battery, "fresh aim solution required");
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ERR_HQReport report = Latest(battery, now);
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if (!report) return Withhold(battery, ContactFailure(battery));
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vector updated;
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if (!ERR_MortarPrediction.Predict(report, now, battery.FlightTime, updated)) return Withhold(battery, ERR_MortarPrediction.FailureReason);
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updated += battery.AimOffset;
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if (vector.DistanceXZ(updated, battery.Impact) > 60) return Withhold(battery, "predicted target left aimed impact area");
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if (!OutsideSettlements(updated)) return Withhold(battery, SettlementReason);
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if (!Safe(battery, battery.Impact, battery.FlightTime)) return Withhold(battery, SafetyReason);
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return true;
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}
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protected void AdvanceOrder(ERR_MortarBattery battery, float now)
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{
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if (!battery.RadioOrder) return;
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int state = battery.RadioOrder.Advance(now, m_HQ.Journal());
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if (state == 0) return;
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ERR_HQReport delivered = battery.PendingRadioReport;
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battery.RadioOrder = null;
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battery.PendingRadioReport = null;
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if (state < 0 || !ERR_MortarPrediction.Fresh(delivered, now) || !battery.Operational() || battery.Activity || !battery.SupplyGunner())
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{
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battery.Cancel("radio delivery, report freshness or gunner availability failed");
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battery.NextOrder = now + 10000;
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return;
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}
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battery.Order(delivered, now);
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}
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void Tick(float now)
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{
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if (m_Stopped || !Replication.IsServer()) return;
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foreach (ERR_MortarBattery battery : m_Batteries)
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{
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if (battery.Rejected && !battery.Released)
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{
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battery.Cancel("native aim or firing authorization rejected");
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battery.NextOrder = now + 10000;
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}
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battery.Rejected = false;
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battery.Update(now);
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AdvanceOrder(battery, now);
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}
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if (now < m_NextDecision) return;
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m_NextDecision = now + 10000;
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array<ref ERR_HQReport> reports = {};
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m_HQ.SupportContacts(reports, now);
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ERR_MortarBattery selected;
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ERR_HQReport target;
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float distance = float.MAX;
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foreach (ERR_MortarBattery battery : m_Batteries)
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{
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if (!battery.StartupActivated || !battery.Operational() || battery.Activity || battery.RadioOrder || now < battery.NextOrder || battery.CountShells() == 0) continue;
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foreach (ERR_HQReport report : reports)
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{
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float candidate = vector.DistanceXZ(battery.Position, report.Position);
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if (candidate < 350 || candidate > 4000 || candidate >= distance || !OutsideSettlements(report.Position)) continue;
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selected = battery;
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target = report;
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distance = candidate;
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}
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}
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if (!selected || !target) return;
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ERR_HQRoute route = m_HQ.Downlink(selected.Group, "MORTAR ORDER", target.Description(now), target.MessageId);
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if (!route) return;
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selected.BeginRequest(target, now);
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selected.RadioId = route.MessageId;
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selected.RadioOrder = route;
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selected.PendingRadioReport = target.Snapshot();
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m_NextDecision = now + 20000;
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}
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void AppendGuns(array<IEntity> entities)
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{
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foreach (ERR_MortarBattery battery : m_Batteries)
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if (battery.Gun && !entities.Contains(battery.Gun)) entities.Insert(battery.Gun);
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}
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string Status()
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{
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int ready, shells;
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foreach (ERR_MortarBattery battery : m_Batteries)
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{
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if (battery.StartupActivated && battery.Operational()) ready++;
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shells += battery.CountShells();
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}
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return string.Format("mortars %1/%2; HE shells %3", ready, m_Batteries.Count(), shells);
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}
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void Stop()
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{
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m_Stopped = true;
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foreach (ERR_MortarBattery battery : m_Batteries) battery.Cancel("HQ stopped");
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}
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}
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