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implement runtime nav mesh generation

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This commit is contained in:
in0finite 2022-01-08 18:25:33 +01:00
parent f962e29c47
commit 9aef106f5d
3 changed files with 108 additions and 4 deletions
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104
Assets/Scripts/Behaviours/World/Cell.cs
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@ -8,12 +8,14 @@ using System.Linq;
using SanAndreasUnity.Behaviours.WorldSystem;
using UnityEngine;
using Profiler = UnityEngine.Profiling.Profiler;
using UnityEngine.AI;
namespace SanAndreasUnity.Behaviours.World
{
public class Cell : MonoBehaviour
{
private Dictionary<Instance, StaticGeometry> m_insts;
public IReadOnlyDictionary<Instance, StaticGeometry> StaticGeometries => m_insts;
public int NumStaticGeometries => m_insts.Count;
private MapObject[] m_cars;
private List<EntranceExitMapObject> m_enexes;
@ -113,18 +115,32 @@ namespace SanAndreasUnity.Behaviours.World
public float yellowTrafficLightDuration = 2;
public float greenTrafficLightDuration = 7;
private NavMeshData _navMeshData = null;
private List<NavMeshBuildSource> _navMeshBuildSources = new List<NavMeshBuildSource>(1024);
private AsyncOperation _navMeshUpdateAsyncOperation = null;
private List<MapObject> _mapObjectsWithNavMeshToAdd = new List<MapObject>(128);
public float navMeshUpdateInterval = 2f;
public float NavMeshUpdatePercentage => _navMeshUpdateAsyncOperation?.progress ?? 1f;
public int NumMapObjectsWithNavMeshToAdd => _mapObjectsWithNavMeshToAdd.Count;
private void Awake()
private void Awake()
{
if (null == Instance)
Instance = this;
//this.InvokeRepeating(nameof(this.UpdateNavMesh), this.navMeshUpdateInterval, this.navMeshUpdateInterval);
}
internal void CreateStaticGeometry ()
{
_navMeshData = new NavMeshData(0);
NavMesh.AddNavMeshData(_navMeshData);
var placements = Item.GetPlacements<Instance>(CellIds.ToArray());
m_insts = new Dictionary<Instance,StaticGeometry> (48 * 1024);
@ -372,5 +388,87 @@ namespace SanAndreasUnity.Behaviours.World
}
}
}
public void RegisterNavMeshObject(MapObject mapObject)
{
_mapObjectsWithNavMeshToAdd.Add(mapObject);
}
void UpdateNavMesh()
{
if (null == _navMeshData)
return;
if (_navMeshUpdateAsyncOperation != null && !_navMeshUpdateAsyncOperation.isDone) // still in progress
return;
if (_mapObjectsWithNavMeshToAdd.Count == 0) // nothing changed
return;
NavMeshBuildSettings navMeshBuildSettings = NavMesh.GetSettingsByID(0);
for (int i = 0; i < _mapObjectsWithNavMeshToAdd.Count; i++)
{
_navMeshBuildSources.AddRange(GetNavMeshBuildSources(_mapObjectsWithNavMeshToAdd[i].transform));
}
_mapObjectsWithNavMeshToAdd.Clear();
_navMeshUpdateAsyncOperation = NavMeshBuilder.UpdateNavMeshDataAsync(
_navMeshData,
navMeshBuildSettings,
_navMeshBuildSources,
new Bounds(this.transform.position, Vector3.one * this.WorldSize));
}
public static List<NavMeshBuildSource> GetNavMeshBuildSources(Transform root)
{
var list = new List<NavMeshBuildSource>();
NavMeshBuilder.CollectSources(root, -1, NavMeshCollectGeometry.PhysicsColliders, 0, new List<NavMeshBuildMarkup>(), list);
return list;
}
public List<NavMeshBuildSource> GetWaterNavMeshBuildSources()
{
if (null == this.Water)
return new List<NavMeshBuildSource>();
var list = new List<NavMeshBuildSource>();
NavMeshBuilder.CollectSources(this.Water.transform, -1, NavMeshCollectGeometry.RenderMeshes, NavMesh.GetAreaFromName("Not Walkable"), new List<NavMeshBuildMarkup>(), list);
return list;
}
/*public static bool GetNavMeshBuildSourceFromCollider(Collider collider, out NavMeshBuildSource source)
{
source = new NavMeshBuildSource();
source.transform = collider.transform.localToWorldMatrix;
if (collider is MeshCollider meshCollider)
{
source.shape = NavMeshBuildSourceShape.Mesh;
source.sourceObject = meshCollider.sharedMesh;
}
else if (collider is BoxCollider boxCollider)
{
source.shape = NavMeshBuildSourceShape.Box;
source.size = boxCollider.size;
}
else if (collider is CapsuleCollider capsuleCollider)
{
source.shape = NavMeshBuildSourceShape.Capsule;
source.size = new Vector3(capsuleCollider.radius, capsuleCollider.height, capsuleCollider.radius);
}
else if (collider is SphereCollider sphereCollider)
{
source.shape = NavMeshBuildSourceShape.Sphere;
source.size = Vector3.one * sphereCollider.radius;
}
else
{
return false;
}
return true;
}*/
}
}

4
Assets/Scripts/Behaviours/World/StaticGeometry.cs
View file

@ -184,6 +184,10 @@ namespace SanAndreasUnity.Behaviours.World
_isGeometryLoaded = true;
this.UpdateVisibility();
if (null == this.LodParent) // only register high LOD objects for nav mesh
Cell.Instance.RegisterNavMeshObject(this);
}
private void OnCollisionModelAttached ()

4
Assets/Scripts/Stats/WorldStats.cs
View file

@ -24,7 +24,9 @@ namespace SanAndreasUnity.Stats
if (cell != null)
{
sb.Append($"max draw distance {cell.MaxDrawDistance}\n");
sb.Append($"nav mesh update percentage {cell.NavMeshUpdatePercentage}\n");
sb.Append($"NumMapObjectsWithNavMeshToAdd {cell.NumMapObjectsWithNavMeshToAdd}\n");
sb.Append($"max draw distance {cell.MaxDrawDistance}\n");
sb.Append($"num focus points {cell.FocusPointManager?.FocusPoints.Count ?? 0}\n");
sb.Append($"num static objects {cell.NumStaticGeometries}\n");
sb.Append($"num TOBJ objects {StaticGeometry.TimedObjects.Count}\n");