BAS file parsing

ParkanPlayground/BasParser.cs

@@ -0,0 +1,86 @@
+using Common;
+
+namespace ParkanPlayground;
+
+public record BasContours(InnerContour[] Inner, OuterContour[] Outer);
+public record InnerContour(Vector3[] Points, uint[] Nums1, uint[] Nums2);
+public record OuterContour(Vector3[] Points);
+
+public static class BasParser
+{
+    public static BasContours ReadFile(string path)
+    {
+        using FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+
+        return ReadFile(fs);
+    }
+
+    public static BasContours ReadFile(Stream fs)
+    {
+        var innerContourCount = fs.ReadUInt32LittleEndian();
+
+        InnerContour[] innerContours = new InnerContour[innerContourCount];
+
+        for (var i = 0; i < innerContourCount; i++)
+        {
+            var pointCount = fs.ReadUInt32LittleEndian();
+
+            Vector3[] points = new Vector3[pointCount + 1];
+    
+            for (var j = 0; j < pointCount + 1; j++)
+            {
+                var x = fs.ReadFloatLittleEndian();
+                var y = fs.ReadFloatLittleEndian();
+                var z = fs.ReadFloatLittleEndian();
+
+                points[j] = new Vector3(x, y, z);
+            }
+
+            uint[] nums1 = new uint[pointCount];
+
+            // batch 1
+            for (var j = 0; j < pointCount; j++)
+            {
+                var num = fs.ReadUInt32LittleEndian();
+                nums1[j] = num;
+            }
+
+            uint[] nums2 = new uint[pointCount];
+
+            // batch 2
+            for (var j = 0; j < pointCount; j++)
+            {
+                var num = fs.ReadUInt32LittleEndian();
+                nums2[j] = num;
+            }
+    
+            innerContours[i] = new InnerContour(points, nums1, nums2);
+        }
+
+
+        var outerContourCount = fs.ReadUInt32LittleEndian();
+
+        OuterContour[] outerContours = new OuterContour[outerContourCount];
+
+        for (var i = 0; i < outerContourCount; i++)
+        {
+            var pointCount = fs.ReadUInt32LittleEndian();
+
+            Vector3[] points = new Vector3[pointCount + 1];
+            for (var j = 0; j < pointCount + 1; j++)
+            {
+                var x = fs.ReadFloatLittleEndian();
+                var y = fs.ReadFloatLittleEndian();
+                var z = fs.ReadFloatLittleEndian();
+        
+                points[j] = new Vector3(x, y, z);
+            }
+
+            outerContours[i] = new OuterContour(points);
+        }
+
+        BasContours contours = new BasContours(innerContours, outerContours);
+
+        return contours;
+    }
+}

ParkanPlayground/Program.cs

@@ -1,63 +1,3 @@
-using ResTreeLib;
+using Common;
 
 System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
-var trfPath = Directory.EnumerateFiles(@"C:\Program Files (x86)\Nikita\Iron Strategy\MISSIONS\SCRIPTS", "*.trf").First();
-var nodes = ResTreeParser.Parse(trfPath);
-
-var active = nodes.Where(n => !string.IsNullOrWhiteSpace(n.ShortName) && (n.Node.ResearchCost > 0 || n.Node.ResearchTime > 0)).ToList();
-Console.WriteLine($"active={active.Count}");
-
-Analyze("X from Cost", active.Select(n => (A:n.Node.ResearchCost, B:n.Node.ViewPosX, Name:n.ShortName, Idx:n.Index)).ToList());
-Analyze("Y from Time", active.Select(n => (A:n.Node.ResearchTime, B:n.Node.ViewPosY, Name:n.ShortName, Idx:n.Index)).ToList());
-
-Console.WriteLine();
-Console.WriteLine("Largest |Y-Time| (active):");
-foreach (var n in active.OrderByDescending(n => Math.Abs(n.Node.ViewPosY - n.Node.ResearchTime)).Take(20))
-{
-    Console.WriteLine($"idx={n.Index,3} {n.ShortName,-12} T={n.Node.ResearchTime,6:0.##} Y={n.Node.ViewPosY,6:0.##} d={n.Node.ViewPosY-n.Node.ResearchTime,6:0.##}");
-}
-
-Console.WriteLine();
-Console.WriteLine("Largest |X-Cost| (active):");
-foreach (var n in active.OrderByDescending(n => Math.Abs(n.Node.ViewPosX - n.Node.ResearchCost)).Take(20))
-{
-    Console.WriteLine($"idx={n.Index,3} {n.ShortName,-12} C={n.Node.ResearchCost,6:0.##} X={n.Node.ViewPosX,6:0.##} d={n.Node.ViewPosX-n.Node.ResearchCost,6:0.##}");
-}
-
-static void Analyze(string title, List<(float A, float B, string Name, int Idx)> data)
-{
-    float meanA = data.Average(x => x.A);
-    float meanB = data.Average(x => x.B);
-    float cov=0, varA=0;
-    foreach (var d in data)
-    {
-        var da = d.A - meanA;
-        var db = d.B - meanB;
-        cov += da*db;
-        varA += da*da;
-    }
-    float slope = varA == 0 ? 0 : cov / varA;
-    float intercept = meanB - slope*meanA;
-
-    float mae = data.Average(d => Math.Abs((slope*d.A + intercept) - d.B));
-    float rmse = MathF.Sqrt(data.Average(d => MathF.Pow((slope*d.A + intercept) - d.B,2)));
-
-    float corr = Corr(data.Select(x=>x.A).ToArray(), data.Select(x=>x.B).ToArray());
-
-    Console.WriteLine($"{title}: corr={corr:0.###}, slope={slope:0.###}, intercept={intercept:0.###}, MAE={mae:0.###}, RMSE={rmse:0.###}");
-}
-
-static float Corr(float[] a, float[] b)
-{
-    if (a.Length != b.Length || a.Length == 0) return 0;
-    var ma = a.Average();
-    var mb = b.Average();
-    float top=0, aa=0, bb=0;
-    for(int i=0;i<a.Length;i++)
-    {
-        var da=a[i]-ma; var db=b[i]-mb;
-        top += da*db; aa += da*da; bb += db*db;
-    }
-    if (aa<=0||bb<=0) return 0;
-    return top / MathF.Sqrt(aa*bb);
-}