initial commit

Projector.cs

@@ -0,0 +1,64 @@
+using Godot;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+public static class Projector
+{
+    public static int[,] Points = new int[1024,512];
+    private static bool _gathered = false;
+    public static void GatherPoints(PlanetHelper helper, int resolutionH = 2048, bool regather = false)
+    {
+        if (!regather && _gathered)
+            return;
+        Points = new int[resolutionH,resolutionH / 2];
+        string filename = $"user://points-{resolutionH}-{resolutionH / 2}.dat";
+        if (FileAccess.FileExists(filename))
+        {
+            var readfile = FileAccess.Open(filename, FileAccess.ModeFlags.Read);
+            for (int x = 0; x < Points.GetLength(0); x++)
+            {
+                for (int y = 0; y < Points.GetLength(1); y++)
+                {
+                    Points[x, y] = (int)readfile.Get32();
+                }
+            }
+            readfile.Close();
+            return;
+        }
+        
+        Parallel.ForEach(Enumerable.Range(0, Points.GetLength(0)), x =>
+        {
+            for (int y = 0; y < Points.GetLength(1); y++)
+            {
+                float yaw = (float)x / Points.GetLength(0) * 360f;
+                float pitch = (float)y / Points.GetLength(1) * 180f;
+                Vector3 point = Vector3.Up;
+                point = point.Rotated(Vector3.Forward, Mathf.DegToRad(pitch));
+                point = point.Rotated(Vector3.Up, Mathf.DegToRad(yaw));
+                int index = helper.Octree.SearchNearest(point)?.Id ?? -1;
+                Points[x,y] =  index;
+            }
+        });
+        var file = FileAccess.Open(filename, FileAccess.ModeFlags.Write);
+        for (int x = 0; x < Points.GetLength(0); x++)
+            for (int y = 0; y < Points.GetLength(1); y++)
+                file.Store32((uint)Points[x,y]);
+        _gathered = true;
+        file.Close();        
+    }
+
+    public static ImageTexture Render(PlanetHelper helper)
+    {
+        var image = Image.CreateEmpty(Points.GetLength(0) + 1, Points.GetLength(1) + 1, false, Image.Format.Rgb8);;
+        
+        for (int x = 0; x < Points.GetLength(0); x++)
+        {
+            for (int y = 0; y < Points.GetLength(1); y++)
+            {
+                image.SetPixel(x,y, helper.Mdt.GetVertexColor(Points[x,y]));
+            }
+        }
+        return ImageTexture.CreateFromImage(image);
+    }
+}