Initial commit

C#/CodeWalker.Core/World/Heightmaps.cs

@@ -0,0 +1,170 @@
+using CodeWalker.GameFiles;
+using SharpDX;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace CodeWalker.World
+{
+    public class Heightmaps : BasePathData
+    {
+        public volatile bool Inited = false;
+        public GameFileCache GameFileCache;
+
+        public List<HeightmapFile> HeightmapFiles = new List<HeightmapFile>();
+
+
+        public Vector4[] GetNodePositions()
+        {
+            return NodePositions;
+        }
+        public EditorVertex[] GetPathVertices()
+        {
+            return null;
+        }
+        public EditorVertex[] GetTriangleVertices()
+        {
+            return TriangleVerts;
+        }
+
+        public Vector4[] NodePositions;
+        public EditorVertex[] TriangleVerts;
+
+
+        public void Init(GameFileCache gameFileCache, Action<string> updateStatus)
+        {
+            Inited = false;
+
+            GameFileCache = gameFileCache;
+
+
+            HeightmapFiles.Clear();
+
+
+            if (gameFileCache.EnableDlc)
+            {
+                LoadHeightmap("update\\update.rpf\\common\\data\\levels\\gta5\\heightmap.dat");
+                LoadHeightmap("update\\update.rpf\\common\\data\\levels\\gta5\\heightmapheistisland.dat");
+            }
+            else
+            {
+                LoadHeightmap("common.rpf\\data\\levels\\gta5\\heightmap.dat");
+            }
+
+
+            BuildVertices();
+
+            Inited = true;
+        }
+
+        private void LoadHeightmap(string filename)
+        {
+            var hmf = GameFileCache.RpfMan.GetFile<HeightmapFile>(filename);
+            HeightmapFiles.Add(hmf);
+        }
+
+
+
+        public void BuildVertices()
+        {
+
+            var vlist = new List<EditorVertex>();
+            var nlist = new List<Vector4>();
+
+            foreach (var hmf in HeightmapFiles)
+            {
+                BuildHeightmapVertices(hmf, vlist, nlist);
+            }
+
+            if (vlist.Count > 0)
+            {
+                TriangleVerts = vlist.ToArray();
+            }
+            else
+            {
+                TriangleVerts = null;
+            }
+            if (nlist.Count > 0)
+            {
+                NodePositions = nlist.ToArray();
+            }
+            else
+            {
+                NodePositions = null;
+            }
+
+        }
+        private void BuildHeightmapVertices(HeightmapFile hmf, List<EditorVertex> vl, List<Vector4> nl)
+        {
+            var v1 = new EditorVertex();
+            var v2 = new EditorVertex();
+            var v3 = new EditorVertex();
+            var v4 = new EditorVertex();
+
+            uint cgrn = (uint)new Color(0, 128, 0, 60).ToRgba();
+            uint cyel = (uint)new Color(128, 128, 0, 200).ToRgba();
+
+            var w = hmf.Width;
+            var h = hmf.Height;
+            var hmin = hmf.MinHeights;
+            var hmax = hmf.MaxHeights;
+            var min = hmf.BBMin;
+            var max = hmf.BBMax;
+            var siz = max - min;
+            var step = siz / new Vector3(w - 1, h - 1, 255);
+
+            v1.Colour = v2.Colour = v3.Colour = v4.Colour = cyel;
+            for (int yi = 1; yi < h; yi++)
+            {
+                var yo = yi - 1;
+                for (int xi = 1; xi < w; xi++)
+                {
+                    var xo = xi - 1;
+                    var o1 = yo * w + xo;
+                    var o2 = yo * w + xi;
+                    var o3 = yi * w + xo;
+                    var o4 = yi * w + xi;
+                    v1.Position = min + step * new Vector3(xo, yo, hmin[o1]);
+                    v2.Position = min + step * new Vector3(xi, yo, hmin[o2]);
+                    v3.Position = min + step * new Vector3(xo, yi, hmin[o3]);
+                    v4.Position = min + step * new Vector3(xi, yi, hmin[o4]);
+                    vl.Add(v1); vl.Add(v2); vl.Add(v3);
+                    vl.Add(v3); vl.Add(v2); vl.Add(v4);
+                }
+            }
+            v1.Colour = v2.Colour = v3.Colour = v4.Colour = cgrn;
+            for (int yi = 1; yi < h; yi++)
+            {
+                var yo = yi - 1;
+                for (int xi = 1; xi < w; xi++)
+                {
+                    var xo = xi - 1;
+                    var o1 = yo * w + xo;
+                    var o2 = yo * w + xi;
+                    var o3 = yi * w + xo;
+                    var o4 = yi * w + xi;
+                    v1.Position = min + step * new Vector3(xo, yo, hmax[o1]);
+                    v2.Position = min + step * new Vector3(xi, yo, hmax[o2]);
+                    v3.Position = min + step * new Vector3(xo, yi, hmax[o3]);
+                    v4.Position = min + step * new Vector3(xi, yi, hmax[o4]);
+                    vl.Add(v1); vl.Add(v2); vl.Add(v3);
+                    vl.Add(v3); vl.Add(v2); vl.Add(v4);
+                }
+            }
+
+            for (int y = 0; y < h; y++)
+            {
+                for (int x = 0; x < w; x++)
+                {
+                    var o = y * w + x;
+                    nl.Add(new Vector4(min + step * new Vector3(x, y, hmin[o]), 10));
+                    nl.Add(new Vector4(min + step * new Vector3(x, y, hmax[o]), 10));
+                }
+            }
+
+
+        }
+
+
+    }
+}