resource stuff

Nerfed.Runtime/Resource/Resource.cs

@@ -1,8 +1,30 @@
+using System;
 namespace Nerfed.Runtime;
 
+public enum ResourceState
+{
+    Unloaded,
+    Queued,
+    Loading,
+    Loaded,
+    Failed
+}
+
 public abstract class Resource
 {
+    public Guid Id { get; internal set; }
     public string Path { get; internal set; }
+    
+    /// <summary>
+    /// Natively tracks if the resource is currently in RAM/VRAM.
+    /// </summary>
+    public ResourceState State { get; internal set; } = ResourceState.Unloaded;
+
+    /// <summary>
+    /// Tracks how many entities or systems currently need this loaded.
+    /// When it hits 0, the ResourceManager handles unloading natively.
+    /// </summary>
+    public int ReferenceCount { get; internal set; } = 0;
 
     internal abstract void Load(Stream stream);
     internal abstract void Unload();