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