156 lines
4.4 KiB
C#
156 lines
4.4 KiB
C#
using System;
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using Diamond;
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using Diamond.Buffers;
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using Diamond.Level;
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using Diamond.Shaders;
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using Diamond.Textures;
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using Diamond.Util;
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using Newtonsoft.Json.Linq;
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using OpenTK;
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using OpenTK.Graphics;
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using OpenTK.Graphics.OpenGL4;
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namespace hexworld
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{
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public class HexRender : GameWindow
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{
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#region Fields
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#region GLObjects
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private Program _texPgm;
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private Texture _doorTex;
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private Texture _grassTex;
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private GLBuffer<ObjVertex> _meshBuffer;
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private GLBuffer<TileData> _tileBuffer;
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protected override void OnClosed(EventArgs e)
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{
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_texPgm?.Dispose();
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_doorTex?.Dispose();
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_grassTex?.Dispose();
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_meshBuffer?.Dispose();
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_tileBuffer?.Dispose();
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}
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#endregion
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private SubArray<TileData> _floorTiles;
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private SubArray<TileData> _doorTiles;
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private Mesh<ObjVertex> _cubeMesh;
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private Matrix4 _view;
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private Matrix4 _proj;
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private double _time;
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#endregion
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public HexRender(int width, int height)
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: base(width, height, new GraphicsMode(32, 24, 0, 0))
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{
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Width = width;
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Height = Height;
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X = (DisplayDevice.Default.Width - Width) / 2;
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Y = (DisplayDevice.Default.Height - Height) / 2;
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}
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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_texPgm = Program.FromFiles("res/obj.vs.glsl", "res/obj.fs.glsl");
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_doorTex = Texture.FromFile("res/door.png");
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_grassTex = Texture.FromFile("res/grass.png");
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_meshBuffer = new GLBuffer<ObjVertex>(BufferTarget.ArrayBuffer);
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_tileBuffer = new GLBuffer<TileData>(BufferTarget.ArrayBuffer, BufferUsageHint.DynamicDraw);
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var dir = "res";
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var json = JObject.Parse(File.ReadAllText("res/level.json"));
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var allTiles = json["tiles"]
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.GroupBy(ti => ti["tex"])
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.Select(g => g
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.Select(ti => ti["pos"])
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.Select(pos => pos.ToObject<Vector3>())
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.Select(pos => new TileData(pos))
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.ToArray())
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.Select(arr => new SubArray<TileData>(arr))
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.ToArray();
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_doorTiles = allTiles[0];
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_floorTiles = allTiles[1];
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_tileBuffer.Data(SubArray.Join(_doorTiles, _floorTiles));
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var cubeMesh = json["models"]
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.Select(path => (string) path)
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.Select(path => Path.Combine(dir, path))
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.Select(path => Mesh.FromObj(path, false))
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.SelectMany(meshes => meshes)
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.First(mesh => mesh.Name == "Cube");
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_cubeMesh = cubeMesh;
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_meshBuffer.Data(cubeMesh.Vertices.ToArray());
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// meshes, tiles, etc
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// can still use JObject queries to keep it short,
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// but don't use Level. hat structure is broken
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}
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protected override void OnUpdateFrame(FrameEventArgs e)
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{
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base.OnUpdateFrame(e);
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_time += e.Time;
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_view = Matrix4.CreateRotationZ((float) _time / 3) *
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Matrix4.LookAt(10 * Vector3.One, Vector3.Zero, Vector3.UnitZ);
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_proj = Matrix4.CreateOrthographic(Width / 100f, Height / 100f, -100, 100);
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}
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protected override void OnRenderFrame(FrameEventArgs e)
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{
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base.OnRenderFrame(e);
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GL.Viewport(ClientRectangle);
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GL.ClearColor(0.2392157F, 0.5607843F, 0.9960784F, 1f);
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GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
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GL.Enable(EnableCap.DepthTest);
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GL.DepthFunc(DepthFunction.Lequal);
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GL.Enable(EnableCap.Blend);
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GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
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_texPgm.Use();
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_texPgm.SetAttribPointers(_meshBuffer);
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_texPgm.SetAttribPointers(_tileBuffer);
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_grassTex.Bind(0);
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GL.Uniform1(_texPgm.GetUniform("tex"), 0);
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GL.UniformMatrix4(_texPgm.GetUniform("view"), false, ref _view);
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GL.UniformMatrix4(_texPgm.GetUniform("proj"), false, ref _proj);
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_cubeMesh.DrawInstanced(_floorTiles);
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SwapBuffers();
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}
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}
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} |