Shooting NPCs and more (#18042)
* Add pirate shooting * Shooting working * Basics working * Refactor time * More conversion * Update primitives * Update yml * weh * Building again * Draft * weh * b * Start shutdown * Starting to take form * Code side done * is it worky * Fix prototypes * stuff * Shitty working * Juke events working * Even more cleanup * RTX * Fix interaction combat mode and compquery * GetAmmoCount relays * Fix rotation speed * Juke fixes * fixes * weh * The collision avoidance never ends * Fixes * Pause support * framework * lazy * Fix idling * Fix drip * goobed * Fix takeover shutdown bug * Merge fixes * shitter * Fix carpos
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metalgearsloth
206
Content.Server/NPC/Systems/NPCJukeSystem.cs
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206
Content.Server/NPC/Systems/NPCJukeSystem.cs
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using System.Numerics;
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using Content.Server.NPC.Components;
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using Content.Server.NPC.Events;
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using Content.Server.NPC.HTN.PrimitiveTasks.Operators.Combat;
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using Content.Server.Weapons.Melee;
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using Content.Shared.NPC;
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using Content.Shared.Weapons.Melee;
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using Robust.Shared.Collections;
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using Robust.Shared.Map.Components;
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using Robust.Shared.Physics.Components;
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using Robust.Shared.Physics.Systems;
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using Robust.Shared.Random;
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using Robust.Shared.Timing;
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namespace Content.Server.NPC.Systems;
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public sealed class NPCJukeSystem : EntitySystem
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{
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[Dependency] private readonly IGameTiming _timing = default!;
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[Dependency] private readonly IRobustRandom _random = default!;
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[Dependency] private readonly EntityLookupSystem _lookup = default!;
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[Dependency] private readonly MeleeWeaponSystem _melee = default!;
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[Dependency] private readonly SharedPhysicsSystem _physics = default!;
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private EntityQuery<NPCMeleeCombatComponent> _npcMeleeQuery;
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private EntityQuery<NPCRangedCombatComponent> _npcRangedQuery;
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private EntityQuery<PhysicsComponent> _physicsQuery;
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public override void Initialize()
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{
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base.Initialize();
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_npcMeleeQuery = GetEntityQuery<NPCMeleeCombatComponent>();
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_npcRangedQuery = GetEntityQuery<NPCRangedCombatComponent>();
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_physicsQuery = GetEntityQuery<PhysicsComponent>();
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SubscribeLocalEvent<NPCJukeComponent, EntityUnpausedEvent>(OnJukeUnpaused);
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SubscribeLocalEvent<NPCJukeComponent, NPCSteeringEvent>(OnJukeSteering);
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}
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private void OnJukeUnpaused(EntityUid uid, NPCJukeComponent component, ref EntityUnpausedEvent args)
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{
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component.NextJuke += args.PausedTime;
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}
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private void OnJukeSteering(EntityUid uid, NPCJukeComponent component, ref NPCSteeringEvent args)
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{
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if (component.JukeType == JukeType.AdjacentTile)
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{
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if (_npcRangedQuery.TryGetComponent(uid, out var ranged) &&
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ranged.Status == CombatStatus.NotInSight)
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{
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component.TargetTile = null;
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return;
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}
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if (_timing.CurTime < component.NextJuke)
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{
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component.TargetTile = null;
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return;
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}
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if (!TryComp<MapGridComponent>(args.Transform.GridUid, out var grid))
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{
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component.TargetTile = null;
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return;
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}
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var currentTile = grid.CoordinatesToTile(args.Transform.Coordinates);
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if (component.TargetTile == null)
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{
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var targetTile = currentTile;
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var startIndex = _random.Next(8);
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_physicsQuery.TryGetComponent(uid, out var ownerPhysics);
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var collisionLayer = ownerPhysics?.CollisionLayer ?? 0;
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var collisionMask = ownerPhysics?.CollisionMask ?? 0;
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for (var i = 0; i < 8; i++)
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{
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var index = (startIndex + i) % 8;
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var neighbor = ((Direction) index).ToIntVec() + currentTile;
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var valid = true;
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// TODO: Probably make this a helper on engine maybe
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var tileBounds = new Box2(neighbor, neighbor + grid.TileSize);
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tileBounds = tileBounds.Enlarged(-0.1f);
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foreach (var ent in _lookup.GetEntitiesIntersecting(args.Transform.GridUid.Value, tileBounds))
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{
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if (ent == uid ||
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!_physicsQuery.TryGetComponent(ent, out var physics) ||
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!physics.CanCollide ||
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!physics.Hard ||
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((physics.CollisionMask & collisionLayer) == 0x0 &&
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(physics.CollisionLayer & collisionMask) == 0x0))
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{
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continue;
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}
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valid = false;
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break;
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}
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if (!valid)
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continue;
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targetTile = neighbor;
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break;
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}
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component.TargetTile ??= targetTile;
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}
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var elapsed = _timing.CurTime - component.NextJuke;
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// Finished juke, reset timer.
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if (elapsed.TotalSeconds > component.JukeDuration ||
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currentTile == component.TargetTile)
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{
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component.TargetTile = null;
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component.NextJuke = _timing.CurTime + TimeSpan.FromSeconds(component.JukeDuration);
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return;
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}
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var targetCoords = grid.GridTileToWorld(component.TargetTile.Value);
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var targetDir = (targetCoords.Position - args.WorldPosition);
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targetDir = args.OffsetRotation.RotateVec(targetDir);
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const float weight = 1f;
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var norm = targetDir.Normalized();
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for (var i = 0; i < SharedNPCSteeringSystem.InterestDirections; i++)
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{
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var result = -Vector2.Dot(norm, NPCSteeringSystem.Directions[i]) * weight;
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if (result < 0f)
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continue;
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args.Steering.Interest[i] = MathF.Max(args.Steering.Interest[i], result);
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}
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args.Steering.CanSeek = false;
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}
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if (component.JukeType == JukeType.Away)
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{
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// TODO: Ranged away juking
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if (_npcMeleeQuery.TryGetComponent(uid, out var melee))
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{
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if (!_melee.TryGetWeapon(uid, out var weaponUid, out var weapon))
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return;
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var cdRemaining = weapon.NextAttack - _timing.CurTime;
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var attackCooldown = TimeSpan.FromSeconds(1f / _melee.GetAttackRate(weaponUid, uid, weapon));
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// Might as well get in range.
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if (cdRemaining < attackCooldown * 0.45f)
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return;
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if (!_physics.TryGetNearestPoints(uid, melee.Target, out var pointA, out var pointB))
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return;
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var obstacleDirection = pointB - args.WorldPosition;
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// If they're moving away then pursue anyway.
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// If just hit then always back up a bit.
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if (cdRemaining < attackCooldown * 0.90f &&
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TryComp<PhysicsComponent>(melee.Target, out var targetPhysics) &&
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Vector2.Dot(targetPhysics.LinearVelocity, obstacleDirection) > 0f)
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{
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return;
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}
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if (cdRemaining < TimeSpan.FromSeconds(1f / _melee.GetAttackRate(weaponUid, uid, weapon)) * 0.45f)
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return;
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var idealDistance = weapon.Range * 4f;
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var obstacleDistance = obstacleDirection.Length();
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if (obstacleDistance > idealDistance || obstacleDistance == 0f)
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{
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// Don't want to get too far.
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return;
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}
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obstacleDirection = args.OffsetRotation.RotateVec(obstacleDirection);
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var norm = obstacleDirection.Normalized();
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var weight = obstacleDistance <= args.Steering.Radius
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? 1f
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: (idealDistance - obstacleDistance) / idealDistance;
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for (var i = 0; i < SharedNPCSteeringSystem.InterestDirections; i++)
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{
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var result = -Vector2.Dot(norm, NPCSteeringSystem.Directions[i]) * weight;
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if (result < 0f)
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continue;
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args.Steering.Interest[i] = MathF.Max(args.Steering.Interest[i], result);
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}
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}
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args.Steering.CanSeek = false;
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}
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}
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}
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