380 lines
9.3 KiB
C#
380 lines
9.3 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Runtime.CompilerServices;
|
|
using System.Runtime.InteropServices;
|
|
using MoonTools.ECS.Collections;
|
|
|
|
namespace MoonTools.ECS;
|
|
|
|
// TODO: we should implement a NativeDictionary that can be memcopied
|
|
public class Snapshot : IDisposable
|
|
{
|
|
private List<ComponentSnapshot> ComponentSnapshots = new List<ComponentSnapshot>();
|
|
|
|
// FIXME: we could just have a filter ID
|
|
private Dictionary<FilterSignature, List<Entity>> Filters = new Dictionary<FilterSignature, List<Entity>>();
|
|
|
|
private List<RelationSnapshot> RelationSnapshots = new List<RelationSnapshot>();
|
|
|
|
private Dictionary<Entity, IndexableSet<TypeId>> EntityRelationIndex =
|
|
new Dictionary<Entity, IndexableSet<TypeId>>();
|
|
|
|
private Dictionary<Entity, IndexableSet<TypeId>> EntityComponentIndex =
|
|
new Dictionary<Entity, IndexableSet<TypeId>>();
|
|
|
|
private List<string> EntityTags = new List<string>();
|
|
|
|
private IdAssigner EntityIdAssigner = new IdAssigner();
|
|
|
|
private bool IsDisposed;
|
|
|
|
public void Restore(World world)
|
|
{
|
|
// restore id assigner state
|
|
EntityIdAssigner.CopyTo(world.EntityIdAssigner);
|
|
|
|
// restore filter states
|
|
// this could be sped up if we figured out a direct IndexableSet copy
|
|
foreach (var (signature, entityList) in Filters)
|
|
{
|
|
var filter = world.FilterIndex[signature];
|
|
|
|
filter.Clear();
|
|
|
|
foreach (var entity in entityList)
|
|
{
|
|
filter.AddEntity(entity);
|
|
}
|
|
}
|
|
|
|
// clear all component storages in case any were created after snapshot
|
|
// FIXME: this can be eliminated via component discovery
|
|
foreach (var componentStorage in world.ComponentIndex)
|
|
{
|
|
componentStorage.Clear();
|
|
}
|
|
|
|
// clear all relation storages in case any were created after snapshot
|
|
// FIXME: this can be eliminated via component discovery
|
|
foreach (var relationStorage in world.RelationIndex)
|
|
{
|
|
relationStorage.Clear();
|
|
}
|
|
|
|
for (var i = 0; i < world.ComponentIndex.Count; i += 1)
|
|
{
|
|
var componentStorage = world.ComponentIndex[i];
|
|
ComponentSnapshots[i].Restore(componentStorage);
|
|
}
|
|
|
|
// restore relation state
|
|
for (var i = 0; i < RelationSnapshots.Count; i += 1)
|
|
{
|
|
var relationStorage = world.RelationIndex[i];
|
|
RelationSnapshots[i].Restore(relationStorage);
|
|
}
|
|
|
|
// restore entity relation index state
|
|
// FIXME: arghhhh this is so slow
|
|
|
|
foreach (var (id, relationTypeSet) in world.EntityRelationIndex)
|
|
{
|
|
relationTypeSet.Clear();
|
|
}
|
|
|
|
foreach (var (id, relationTypeSet) in EntityRelationIndex)
|
|
{
|
|
foreach (var typeId in relationTypeSet)
|
|
{
|
|
world.EntityRelationIndex[id].Add(typeId);
|
|
}
|
|
}
|
|
|
|
// restore entity component index state
|
|
// FIXME: arrghghhh this is so slow
|
|
|
|
foreach (var (id, componentTypeSet) in world.EntityComponentIndex)
|
|
{
|
|
componentTypeSet.Clear();
|
|
}
|
|
|
|
foreach (var (id, componentTypeSet) in EntityComponentIndex)
|
|
{
|
|
foreach (var typeId in componentTypeSet)
|
|
{
|
|
world.EntityComponentIndex[id].Add(typeId);
|
|
}
|
|
}
|
|
|
|
// restore entity tags
|
|
world.EntityTags.Clear();
|
|
foreach (var s in EntityTags)
|
|
{
|
|
world.EntityTags.Add(s);
|
|
}
|
|
}
|
|
|
|
public void Take(World world)
|
|
{
|
|
// copy id assigner state
|
|
world.EntityIdAssigner.CopyTo(EntityIdAssigner);
|
|
|
|
// copy filter states
|
|
foreach (var (_, filter) in world.FilterIndex)
|
|
{
|
|
TakeFilterSnapshot(filter);
|
|
}
|
|
|
|
// copy components
|
|
for (var i = ComponentSnapshots.Count; i < world.ComponentIndex.Count; i += 1)
|
|
{
|
|
ComponentSnapshots.Add(new ComponentSnapshot(world.ComponentIndex[i].ElementSize));
|
|
}
|
|
|
|
for (var i = 0; i < world.ComponentIndex.Count; i += 1)
|
|
{
|
|
ComponentSnapshots[i].Take(world.ComponentIndex[i]);
|
|
}
|
|
|
|
// copy relations
|
|
for (var i = RelationSnapshots.Count; i < world.RelationIndex.Count; i += 1)
|
|
{
|
|
RelationSnapshots.Add(new RelationSnapshot(world.RelationIndex[i].ElementSize));
|
|
}
|
|
|
|
for (var i = 0; i < world.RelationIndex.Count; i += 1)
|
|
{
|
|
RelationSnapshots[i].Take(world.RelationIndex[i]);
|
|
}
|
|
|
|
// copy entity relation index
|
|
// FIXME: arghhhh this is so slow
|
|
foreach (var (id, relationTypeSet) in world.EntityRelationIndex)
|
|
{
|
|
if (!EntityRelationIndex.ContainsKey(id))
|
|
{
|
|
EntityRelationIndex.Add(id, new IndexableSet<TypeId>());
|
|
}
|
|
|
|
EntityRelationIndex[id].Clear();
|
|
|
|
foreach (var typeId in relationTypeSet)
|
|
{
|
|
EntityRelationIndex[id].Add(typeId);
|
|
}
|
|
}
|
|
|
|
// copy entity component index
|
|
// FIXME: arghhhh this is so slow
|
|
foreach (var (id, componentTypeSet) in world.EntityComponentIndex)
|
|
{
|
|
if (!EntityComponentIndex.ContainsKey(id))
|
|
{
|
|
EntityComponentIndex.Add(id, new IndexableSet<TypeId>());
|
|
}
|
|
|
|
EntityComponentIndex[id].Clear();
|
|
|
|
foreach (var typeId in componentTypeSet)
|
|
{
|
|
EntityComponentIndex[id].Add(typeId);
|
|
}
|
|
}
|
|
|
|
// copy entity tags
|
|
EntityTags.Clear();
|
|
foreach (var s in world.EntityTags)
|
|
{
|
|
EntityTags.Add(s);
|
|
}
|
|
}
|
|
|
|
private void TakeFilterSnapshot(Filter filter)
|
|
{
|
|
if (!Filters.TryGetValue(filter.Signature, out var entities))
|
|
{
|
|
entities = new List<Entity>();
|
|
Filters.Add(filter.Signature, entities);
|
|
}
|
|
|
|
entities.Clear();
|
|
|
|
foreach (var entity in filter.EntitySet.AsSpan())
|
|
{
|
|
entities.Add(entity);
|
|
}
|
|
}
|
|
|
|
private class ComponentSnapshot : IDisposable
|
|
{
|
|
private readonly NativeArray<Entity> DenseArray;
|
|
private readonly NativeArray<int> SparseArray;
|
|
private nint ElementArray;
|
|
private int ElementArrayCapacity;
|
|
|
|
private bool IsDisposed;
|
|
|
|
public unsafe ComponentSnapshot(int elementSize)
|
|
{
|
|
ElementArray = (nint) NativeMemory.Alloc((nuint) (16 * elementSize));
|
|
DenseArray = new NativeArray<Entity>(elementSize);
|
|
SparseArray = new NativeArray<int>(elementSize);
|
|
}
|
|
|
|
public unsafe void Take(ComponentStorage componentStorage)
|
|
{
|
|
componentStorage.DenseArray.CopyTo(DenseArray);
|
|
componentStorage.SparseArray.CopyTo(SparseArray);
|
|
if (componentStorage.ElementArrayCapacity > ElementArrayCapacity)
|
|
{
|
|
ElementArrayCapacity = componentStorage.ElementArrayCapacity;
|
|
NativeMemory.Realloc((void*) ElementArray, (nuint) (componentStorage.ElementSize * ElementArrayCapacity));
|
|
}
|
|
NativeMemory.Copy((void*) componentStorage.ElementArray, (void*) ElementArray, (nuint) (ElementArrayCapacity * componentStorage.ElementSize));
|
|
}
|
|
|
|
public unsafe void Restore(ComponentStorage componentStorage)
|
|
{
|
|
DenseArray.CopyTo(componentStorage.DenseArray);
|
|
SparseArray.CopyTo(componentStorage.SparseArray);
|
|
NativeMemory.Copy((void*) ElementArray, (void*) componentStorage.ElementArray, (nuint) (ElementArrayCapacity * componentStorage.ElementSize));
|
|
}
|
|
|
|
protected unsafe virtual void Dispose(bool disposing)
|
|
{
|
|
if (!IsDisposed)
|
|
{
|
|
if (disposing)
|
|
{
|
|
DenseArray.Dispose();
|
|
SparseArray.Dispose();
|
|
}
|
|
|
|
NativeMemory.Free((void*) ElementArray);
|
|
|
|
IsDisposed = true;
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
|
Dispose(disposing: true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
}
|
|
|
|
private class RelationSnapshot : IDisposable
|
|
{
|
|
private NativeArray Relations;
|
|
private NativeArray RelationDatas;
|
|
|
|
private bool IsDisposed;
|
|
|
|
public RelationSnapshot(int elementSize)
|
|
{
|
|
Relations = new NativeArray(Unsafe.SizeOf<(Entity, Entity)>());
|
|
RelationDatas = new NativeArray(elementSize);
|
|
}
|
|
|
|
public void Take(RelationStorage relationStorage)
|
|
{
|
|
relationStorage.Relations.CopyAllTo(Relations);
|
|
relationStorage.RelationDatas.CopyAllTo(RelationDatas);
|
|
}
|
|
|
|
public void Restore(RelationStorage relationStorage)
|
|
{
|
|
relationStorage.Clear();
|
|
|
|
Relations.CopyAllTo(relationStorage.Relations);
|
|
RelationDatas.CopyAllTo(relationStorage.RelationDatas);
|
|
|
|
for (int index = 0; index < Relations.Count; index += 1)
|
|
{
|
|
var relation = Relations.Get<(Entity, Entity)>(index);
|
|
relationStorage.Indices[relation] = index;
|
|
|
|
relationStorage.Indices[relation] = index;
|
|
|
|
if (!relationStorage.OutRelationSets.ContainsKey(relation.Item1))
|
|
{
|
|
relationStorage.OutRelationSets[relation.Item1] =
|
|
relationStorage.AcquireHashSetFromPool();
|
|
}
|
|
|
|
relationStorage.OutRelationSets[relation.Item1].Add(relation.Item2);
|
|
|
|
if (!relationStorage.InRelationSets.ContainsKey(relation.Item2))
|
|
{
|
|
relationStorage.InRelationSets[relation.Item2] =
|
|
relationStorage.AcquireHashSetFromPool();
|
|
}
|
|
|
|
relationStorage.InRelationSets[relation.Item2].Add(relation.Item1);
|
|
}
|
|
}
|
|
|
|
protected virtual void Dispose(bool disposing)
|
|
{
|
|
if (!IsDisposed)
|
|
{
|
|
if (disposing)
|
|
{
|
|
Relations.Dispose();
|
|
RelationDatas.Dispose();
|
|
}
|
|
|
|
IsDisposed = true;
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
|
Dispose(disposing: true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
}
|
|
|
|
protected virtual void Dispose(bool disposing)
|
|
{
|
|
if (!IsDisposed)
|
|
{
|
|
if (disposing)
|
|
{
|
|
foreach (var componentSnapshot in ComponentSnapshots)
|
|
{
|
|
componentSnapshot.Dispose();
|
|
}
|
|
|
|
foreach (var relationSnapshot in RelationSnapshots)
|
|
{
|
|
relationSnapshot.Dispose();
|
|
}
|
|
|
|
foreach (var componentSet in EntityComponentIndex.Values)
|
|
{
|
|
componentSet.Dispose();
|
|
}
|
|
|
|
foreach (var relationSet in EntityRelationIndex.Values)
|
|
{
|
|
relationSet.Dispose();
|
|
}
|
|
|
|
EntityIdAssigner.Dispose();
|
|
}
|
|
|
|
IsDisposed = true;
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
|
Dispose(disposing: true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
}
|