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Context steering for NPCs (#12915)

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This commit is contained in:
metalgearsloth
2022-12-12 14:33:43 +11:00
committed by GitHub
parent 881ba0d48d
commit 7910bd3ff4
17 changed files with 952 additions and 228 deletions
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52
Content.Server/NPC/Systems/NPCCombatSystem.Melee.cs
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@@ -1,7 +1,7 @@
using Content.Server.CombatMode;
using Content.Server.NPC.Components;
using Content.Shared.MobState;
using Content.Shared.MobState.Components;
using Content.Server.NPC.Events;
using Content.Shared.NPC;
using Content.Shared.Weapons.Melee;
using Robust.Shared.Map;
using Robust.Shared.Physics.Components;
@@ -17,6 +17,52 @@ public sealed partial class NPCCombatSystem
{
SubscribeLocalEvent<NPCMeleeCombatComponent, ComponentStartup>(OnMeleeStartup);
SubscribeLocalEvent<NPCMeleeCombatComponent, ComponentShutdown>(OnMeleeShutdown);
SubscribeLocalEvent<NPCMeleeCombatComponent, NPCSteeringEvent>(OnMeleeSteering);
}
private void OnMeleeSteering(EntityUid uid, NPCMeleeCombatComponent component, ref NPCSteeringEvent args)
{
args.Steering.CanSeek = true;
if (TryComp<MeleeWeaponComponent>(component.Weapon, out var weapon))
{
var cdRemaining = weapon.NextAttack - _timing.CurTime;
// If CD remaining then backup.
if (cdRemaining < TimeSpan.FromSeconds(1f / weapon.AttackRate) * 0.5f)
return;
if (!_physics.TryGetNearestPoints(uid, component.Target, out _, out var pointB))
return;
var idealDistance = weapon.Range * 1.25f;
var obstacleDirection = pointB - args.WorldPosition;
var obstacleDistance = obstacleDirection.Length;
if (obstacleDistance > idealDistance)
{
// Don't want to get too far.
return;
}
args.Steering.CanSeek = false;
obstacleDirection = args.OffsetRotation.RotateVec(obstacleDirection);
var norm = obstacleDirection.Normalized;
var weight = (obstacleDistance <= args.AgentRadius
? 1f
: (idealDistance - obstacleDistance) / idealDistance);
for (var i = 0; i < SharedNPCSteeringSystem.InterestDirections; i++)
{
var result = -Vector2.Dot(norm, NPCSteeringSystem.Directions[i]) * weight;
if (result < 0f)
continue;
args.Interest[i] = MathF.Max(args.Interest[i], result);
}
}
}
private void OnMeleeShutdown(EntityUid uid, NPCMeleeCombatComponent component, ComponentShutdown args)
@@ -107,7 +153,7 @@ public sealed partial class NPCCombatSystem
// Gets unregistered on component shutdown.
_steering.TryRegister(component.Owner, new EntityCoordinates(component.Target, Vector2.Zero), steering);
if (weapon.NextAttack > curTime)
if (weapon.NextAttack > curTime || !Enabled)
return;
if (_random.Prob(component.MissChance) &&