daily update on 20240508 by nitload youmu, partical added

2024-05-09 04:14:36 +08:00
parent fc19ab3298
commit 56459deec5
58 changed files with 1507 additions and 431 deletions
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.Geometries
+{
+    public class PlainInstancingBuffer<T> where T : IInstancing<T>
+    {
+        private List<Vector4> coordList;
+        private List<float> scalingList;
+        private List<IInstancing<T>> instanceList;
+
+        public PlainInstancingBuffer()
+        {
+            coordList = new List<Vector4>();
+            instanceList = new List<IInstancing<T>>();
+            scalingList = new List<float>();
+        }
+
+        internal List<Vector4> CoordList 
+        {
+            get => coordList;
+        }
+
+        internal List<float> ScalingList
+        {
+            get => scalingList;
+        }
+
+        public int CreateInstanceID()
+        {
+            int ret = instanceList.Count;
+            coordList.Add(new Vector4());
+            scalingList.Add(0);
+            return ret;
+        }
+
+        public void Remove(T instance)
+        {
+            if (instance.GlobalBuffer != this)
+            {
+                throw new ArgumentException();
+            }
+            int index = instance.BufferId;
+            IInstancing<T> temp = instanceList[instanceList.Count - 1];
+            instanceList[instance.BufferId] = temp;
+            temp.BufferId = instance.BufferId;
+            
+            coordList[instance.BufferId] = coordList[coordList.Count - 1];
+            scalingList[instance.BufferId] = scalingList[scalingList.Count - 1];
+
+            instanceList.RemoveAt(instanceList.Count - 1);
+            coordList.RemoveAt(coordList.Count - 1);
+            scalingList.RemoveAt(scalingList.Count - 1);
+        }
+
+        
+
+    }
+}