R26_dev8 - First public commit

2026-05-17 21:15:21 +08:00 · 2017-09-21 20:33:05 +10:00
commit a8243c3e0e
391 changed files with 157678 additions and 0 deletions
@@ -0,0 +1,93 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SharpDX;
+using SharpDX.Direct3D;
+using SharpDX.Direct3D11;
+using Device = SharpDX.Direct3D11.Device;
+using Buffer = SharpDX.Direct3D11.Buffer;
+using SharpDX.DXGI;
+
+namespace CodeWalker.Rendering
+{
+    public class UnitDisc
+    {
+        public int SegmentCount { get; set; }
+        public int IndexCount { get; set; }
+        public Buffer VertexBuffer { get; set; }
+        public Buffer IndexBuffer { get; set; }
+
+        private VertexBufferBinding vbbinding;
+
+        public UnitDisc(Device device, int segmentCount, bool invert = false)
+        {
+            SegmentCount = segmentCount;
+            List<Vector3> verts = new List<Vector3>();
+            List<uint> inds = new List<uint>();
+            verts.Add(Vector3.Zero);
+            float incr = (float)Math.PI * 2.0f / segmentCount;
+            for (int i = 0; i < segmentCount; i++)
+            {
+                float a = incr * i;
+                float px = (float)Math.Sin(a);
+                float py = (float)Math.Cos(a);
+                verts.Add(new Vector3(px, py, 0));
+            }
+            for (int i = 0; i < segmentCount; i++)
+            {
+                uint ci = (uint)((i == 0) ? segmentCount : i);
+                uint ni = (uint)i + 1;
+                inds.Add(0);
+                inds.Add(invert ? ni : ci);
+                inds.Add(invert ? ci : ni);
+            }
+            IndexCount = inds.Count;
+
+            VertexBuffer = Buffer.Create(device, BindFlags.VertexBuffer, verts.ToArray());
+            IndexBuffer = Buffer.Create(device, BindFlags.IndexBuffer, inds.ToArray());
+            vbbinding = new VertexBufferBinding(VertexBuffer, 12, 0);
+        }
+
+
+        public void Draw(DeviceContext context)
+        {
+            context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
+            context.InputAssembler.SetVertexBuffers(0, vbbinding);
+            context.InputAssembler.SetIndexBuffer(IndexBuffer, Format.R32_UInt, 0);
+            context.DrawIndexed(IndexCount, 0, 0);
+        }
+        public void DrawInstanced(DeviceContext context, int instcount)
+        {
+            context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
+            context.InputAssembler.SetVertexBuffers(0, vbbinding);
+            context.InputAssembler.SetIndexBuffer(IndexBuffer, Format.R32_UInt, 0);
+            context.DrawIndexedInstanced(IndexCount, instcount, 0, 0, 0);
+        }
+
+        public void Dispose()
+        {
+            if (VertexBuffer != null)
+            {
+                VertexBuffer.Dispose();
+                VertexBuffer = null;
+            }
+            if (IndexBuffer != null)
+            {
+                IndexBuffer.Dispose();
+                IndexBuffer = null;
+            }
+        }
+
+        public InputElement[] GetLayout()
+        {
+            return new[]
+            {
+                new InputElement("POSITION", 0, Format.R32G32B32_Float, 0, 0),
+            };
+        }
+
+
+    }
+}