smrendererv3/SMCode/SM.Base/Scene/GenericItemCollection.cs

320 lines
No EOL
10 KiB
C#

#region usings
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using SM.Base.Drawing;
using SM.Base.Window;
using SM.Base.Window.Contexts;
#endregion
namespace SM.Base.Scene
{
/// <summary>
/// Contains a list of show items.
/// </summary>
public abstract class GenericItemCollection : List<IShowItem>, IShowItem, IShowCollection, IScriptable, IFixedScriptable
{
private readonly List<IScriptable> _scriptableObjects = new List<IScriptable>();
private readonly List<IFixedScriptable> _fixedScriptables = new List<IFixedScriptable>();
/// <summary>
/// Currently active script objects.
/// </summary>
public ReadOnlyCollection<IScriptable> ScriptableObjects =>
new ReadOnlyCollection<IScriptable>(_scriptableObjects);
/// <inheritdoc />
public bool UpdateActive { get; set; } = true;
/// <inheritdoc />
public List<IShowItem> Objects => this;
/// <inheritdoc />
public object Parent { get; set; }
/// <inheritdoc />
public string Name { get; set; } = "Unnamed Item Collection";
/// <inheritdoc />
public ICollection<string> Flags { get; set; } = new List<string> {"collection"};
/// <inheritdoc cref="IShowItem" />
public bool Active { get; set; } = true;
/// <inheritdoc />
public bool RenderActive { get; set; } = true;
/// <inheritdoc />
public virtual void FixedUpdate(FixedUpdateContext context)
{
if (!Active || !UpdateActive) return;
for (int i = 0; i < _fixedScriptables.Count; i++)
{
_fixedScriptables[i].FixedUpdate(context);
}
}
/// <inheritdoc cref="IShowCollection.Draw" />
public virtual void Draw(DrawContext context)
{
if (!Active || !RenderActive) return;
for (var i = 0; i < Objects.Count; i++)
{
if (!this[i].Active || !this[i].RenderActive) continue;
this[i].Draw(context);
}
}
/// <inheritdoc />
public virtual void Update(UpdateContext context)
{
if (!Active || !UpdateActive) return;
for (var i = 0; i < _scriptableObjects.Count; i++)
{
if (!_scriptableObjects[i].Active || !_scriptableObjects[i].UpdateActive) continue;
_scriptableObjects[i].Update(context);
}
}
/// <inheritdoc />
public virtual void OnAdded(object sender)
{
}
/// <inheritdoc />
public virtual void OnRemoved(object sender)
{
}
/// <summary>
/// Adds items to the draw and the script collection, when applicable.
/// </summary>
public void Add(params ICollectionItem[] items)
{
foreach (var item in items)
{
if (item is IShowItem show)
addObject(show);
if (item is IScriptable scriptable)
addScript(scriptable);
if (item is IFixedScriptable fixedScriptable)
addScript(fixedScriptable);
}
}
/// <summary>
/// Adds the object to the collection.
/// </summary>
/// <param name="item"></param>
[Obsolete("Please use Add()")]
public void AddObject(IShowItem item)
{
addObject(item);
}
/// <summary>
/// Adds the script to the collection.
/// </summary>
/// <param name="item"></param>
[Obsolete("Please use Add()")]
public void AddScript(IScriptable item)
{
addScript(item);
}
private void addObject(IShowItem item)
{
base.Add(item);
item.Parent = this;
item.OnAdded(this);
}
private void addScript(IScriptable item)
{
_scriptableObjects.Add(item);
}
private void addScript(IFixedScriptable item)
{
_fixedScriptables.Add(item);
}
/// <summary>
/// Removes an object from the drawing list.
/// <para>If the object is a scriptable object, it will remove the object from that list as well.</para>
/// </summary>
/// <param name="items"></param>
public void Remove(params ICollectionItem[] items)
{
foreach (var item in items)
{
if (item is IShowItem show)
removeObject(show);
if (item is IScriptable scriptable)
removeScript(scriptable);
if (item is IFixedScriptable fixedScriptable)
removeScript(fixedScriptable);
}
}
/// <summary>
/// Remove the object from the draw collection.
/// </summary>
/// <param name="item"></param>
[Obsolete("Please use Remove()")]
public void RemoveObject(IShowItem item)
{
removeObject(item);
}
private void removeObject(IShowItem item)
{
base.Remove(item);
item.Parent = null;
item.OnRemoved(this);
}
/// <summary>
/// Remove the object from the script collection.
/// </summary>
/// <param name="item"></param>
[Obsolete("Please use Remove()")]
public void RemoveScript(IScriptable item)
{
removeScript(item);
}
private void removeScript(IScriptable item)
{
_scriptableObjects.Remove(item);
}
private void removeScript(IFixedScriptable item)
{
_fixedScriptables.Remove(item);
}
/// <summary>
/// Clears the entire collection of everything.
/// </summary>
public new void Clear()
{
foreach (IShowItem item in this.ToArray()) removeObject(item);
foreach (IScriptable scriptable in _scriptableObjects.ToArray()) removeScript(scriptable);
foreach (IFixedScriptable scriptable in _fixedScriptables.ToArray()) removeScript(scriptable);
}
/// <summary>
/// Clears the entire collection of selected systems.
/// <para>If f.E. a object is both visual and scriptable and you clear the visuals, the scriptable-entry will stay.</para>
/// <param name="visuals">Clears visuals</param>
/// <param name="scriptables">Clears scriptables</param>
/// <param name="fixedScriptables">Clears fixed scriptables</param>
/// </summary>
public void Clear(bool visuals = false, bool scriptables = false, bool fixedScriptables = false)
{
if (visuals) foreach (IShowItem item in this.ToArray()) removeObject(item);
if (scriptables) foreach (IScriptable scriptable in _scriptableObjects.ToArray()) removeScript(scriptable);
if (fixedScriptables) foreach (IFixedScriptable scriptable in _fixedScriptables.ToArray()) removeScript(scriptable);
}
/// <summary>
/// Returns all objects in the drawing list.
/// <para>Not reclusive.</para>
/// </summary>
/// <param name="includeCollections">If true, it will add collections as well.</param>
/// <returns></returns>
public ICollection<IShowItem> GetAllItems(bool includeCollections = false)
{
List<IShowItem> items = new List<IShowItem>();
for (var i = 0; i < Count; i++)
{
if (!includeCollections && this[i] is IShowCollection) continue;
items.Add(this[i]);
}
return items;
}
/// <summary>
/// Returns a object with this name or the default, if not available.
/// <para>Not reclusive.</para>
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public IShowItem GetItemByName(string name)
{
IShowItem obj = default;
for (var i = 0; i < Count; i++)
if (this[i].Name == name)
{
obj = this[i];
break;
}
return obj;
}
/// <summary>
/// Returns a object with this name or the default if not available.
/// <para>Not reclusive.</para>
/// </summary>
/// <typeparam name="TGetItem">Type of return</typeparam>
public TGetItem GetItemByName<TGetItem>(string name)
where TGetItem : IShowItem
{
return (TGetItem) GetItemByName(name);
}
/// <summary>
/// Returns all object that have this flag.
/// <para>Only in this list.</para>
/// </summary>
public ICollection<IShowItem> GetItemsWithFlag(string flag)
{
var list = new List<IShowItem>();
for (var i = 0; i < Count; i++)
{
var obj = this[i];
if (obj.Flags == null) continue;
if (obj.Flags.Contains(flag)) list.Add(obj);
}
return list;
}
}
/// <summary>
/// Contains a list of show items with transformation.
/// </summary>
/// <typeparam name="TTransformation">The type of transformation.</typeparam>
public abstract class GenericItemCollection<TTransformation> : GenericItemCollection,
IShowTransformItem<TTransformation>
where TTransformation : GenericTransformation, new()
{
/// <summary>
/// Transformation of the collection
/// </summary>
public TTransformation Transform { get; set; } = new TTransformation();
/// <inheritdoc />
public override void Draw(DrawContext context)
{
Transform.LastMaster = context.ModelMatrix;
context.ModelMatrix = Transform.MergeMatrix(context.ModelMatrix);
base.Draw(context);
}
}
}