Files
Cortex_Engine/src/CortexEngine.App/Program.cs
T
emil28092005 61f8c7065e feat: WASD free-fly camera with F toggle
- Add ICameraController interface and FreeFlyCameraController.
- WASD moves, Q/E up/down, Shift sprint, right-mouse + mouse look.
- Toggle between Orbit and FreeFly with F key.
- OrbitCameraController now implements ICameraController.
- Update Program.cs to switch active controller on F.
- Update CORTEX_ENGINE_ARCHITECTURE.md with camera controls.
- Debug/Release/ReleaseAOT all build.
2026-06-16 21:14:32 +03:00

348 lines
14 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Numerics;
using Engine.AI;
using SDL;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
#if !RELEASE_AOT
using Engine.AI.Mcp;
using Microsoft.AspNetCore.Builder;
#endif
using Engine.Core;
using Engine.Core.Components;
using Engine.Graphics;
using Engine.Graphics.Loaders;
using Flecs.NET.Core;
namespace CortexEngine.App;
class Program
{
static async Task Main(string[] args)
{
Console.WriteLine("Cortex Engine — Materials, Grid, Lighting, Orbit Camera...");
try
{
if (args.Contains("--mcp-stdio"))
{
RunMcpStdioServer();
return;
}
using var world = World.Create();
using var window = new Sdl3Window("Cortex Engine", 1280, 720);
var timing = new Timing();
var input = new InputMapping();
using var vulkan = new VulkanContext(window, enableValidation: false);
using var swapchain = new Swapchain(vulkan);
using var renderer = new MeshRenderer(vulkan, swapchain);
var (modelPath, mcpPort) = ParseArgs(args);
var mesh = LoadModel(modelPath);
var processor = new AiCommandProcessor(world, LoadModel, path => renderer.RequestScreenshot(path));
var queue = new AiCommandQueue(processor);
var cameraEntity = world.Entity("Camera")
.Set(new Transform(new Vector3(0.0f, 2.5f, -4.0f), Quaternion.Identity, Vector3.One))
.Set(new Camera(
new Vector3(0.0f, 2.5f, -4.0f),
new Vector3(0.0f, 0.5f, 0.0f),
Vector3.UnitY,
MathF.PI / 4.0f,
1280.0f / 720.0f,
0.1f,
100.0f));
world.Entity("MainLight")
.Set(new Transform(new Vector3(0.0f, 0.0f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(new Light(new Vector3(0.5f, -1.0f, -0.5f), new Vector3(1.0f, 0.95f, 0.8f), 1.0f));
world.Entity("FillLight")
.Set(new Transform(new Vector3(0.0f, 0.0f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(new Light(new Vector3(-0.8f, -0.6f, 0.3f), new Vector3(0.3f, 0.4f, 0.6f), 0.6f));
world.Entity("FrontLight")
.Set(new Transform(new Vector3(0.0f, 0.0f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(new Light(new Vector3(0.0f, -0.3f, -1.0f), new Vector3(0.8f, 0.8f, 0.9f), 0.4f));
world.Entity("GroundLight")
.Set(new Transform(new Vector3(0.0f, 0.0f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(new Light(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.15f, 0.15f, 0.2f), 0.3f));
ICameraController[] cameraControllers =
[
new OrbitCameraController(cameraEntity, new Vector3(0.0f, 0.5f, 0.0f)),
new FreeFlyCameraController(cameraEntity)
];
var activeControllerIndex = 0;
var texturePath = GenerateCheckerboardTexture("Content/checkerboard.png", 256);
var model = world.Entity("Model")
.Set(new Transform(new Vector3(0.0f, 0.5f, 0.0f), Quaternion.Identity, new Vector3(0.5f)))
.Set(mesh)
.Set(new Material(new Vector3(0.9f, 0.6f, 0.3f), roughness: 0.4f, metallic: 0.1f));
var floor = world.Entity("Floor")
.Set(new Transform(new Vector3(0.0f, 0.0f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(CreateFloorMesh(20.0f, new Vector3(0.8f, 0.8f, 0.85f)))
.Set(new Material(new Vector3(0.8f, 0.8f, 0.85f), roughness: 0.9f, metallic: 0.0f, texturePath: texturePath));
var grid = world.Entity("Grid")
.Set(new Transform(new Vector3(0.0f, 0.01f, 0.0f), Quaternion.Identity, Vector3.One))
.Set(CreateGridMesh(20, 0.5f, new Vector3(0.5f, 0.5f, 0.55f)))
.Set(new Material(new Vector3(0.5f, 0.5f, 0.55f), roughness: 0.9f, metallic: 0.0f));
// Demo: local AI commands processed on the main thread.
Console.WriteLine("AI demo commands:");
Console.WriteLine(processor.Process("""{ "type": "list_entities" }""").Message);
Console.WriteLine(processor.Process("""{ "type": "spawn_model", "name": "SecondCube", "modelPath": "Content/cube.obj", "position": [0.8, 0, 0], "scale": [0.3, 0.3, 0.3] }""").Message);
Console.WriteLine(processor.Process("""{ "type": "set_transform", "name": "SecondCube", "position": [0.8, 0.5, 0], "rotation": [0, 0, 0, 1], "scale": [0.3, 0.3, 0.3] }""").Message);
var secondCube = world.Lookup("SecondCube");
if ((ulong)secondCube.Id != 0)
secondCube.Set(new Material(new Vector3(0.3f, 0.7f, 0.9f), roughness: 0.3f, metallic: 0.2f));
Console.WriteLine(processor.Process("""{ "type": "list_entities" }""").Message);
Console.WriteLine(processor.Process("""{ "type": "get_world_state" }""").Message);
Console.WriteLine(processor.Process("""{ "type": "capture_screenshot", "outputPath": "Screenshots/demo.png" }""").Message);
#if !RELEASE_AOT
WebApplication? mcpApp = null;
Task? mcpTask = null;
if (mcpPort > 0)
{
// Start the MCP server in the background so AI agents can connect via HTTP.
mcpApp = McpEngineServerHost.Create(args, queue, port: mcpPort);
mcpTask = mcpApp.RunAsync();
_ = mcpTask.ContinueWith(t =>
{
if (t.IsFaulted)
Console.WriteLine($"MCP server error: {t.Exception?.GetBaseException().Message}");
else if (t.IsCanceled)
Console.WriteLine("MCP server canceled.");
else
Console.WriteLine("MCP server stopped.");
}, TaskScheduler.Default);
Console.WriteLine($"MCP HTTP server listening on http://localhost:{mcpPort}/ (SSE)");
}
else
{
Console.WriteLine("MCP server disabled (--mcp-port 0).");
}
#endif
var frames = 0;
var lastFpsTime = 0.0;
var lastWidth = window.Width;
var lastHeight = window.Height;
while (!window.ShouldClose)
{
timing.Tick();
window.PumpEvents(input);
input.BeginFrame();
// Drain any commands that arrived from the MCP server.
var processed = queue.ProcessPending();
if (processed > 0)
Console.WriteLine($"Processed {processed} AI command(s)");
if (window.Width != lastWidth || window.Height != lastHeight)
{
lastWidth = window.Width;
lastHeight = window.Height;
swapchain.Recreate(lastWidth, lastHeight);
ref var camera = ref cameraEntity.Ensure<Camera>();
camera.AspectRatio = (float)lastWidth / lastHeight;
}
// Toggle camera controller with F.
if (input.IsKeyPressed(SDL_Keycode.SDLK_F))
{
activeControllerIndex = (activeControllerIndex + 1) % cameraControllers.Length;
Console.WriteLine($"Camera controller: {cameraControllers[activeControllerIndex].Name}");
}
// Update active camera controller from input.
cameraControllers[activeControllerIndex].Update(input, (float)timing.DeltaTime);
// Slowly rotate the model so we can see it in 3D.
ref var modelTransform = ref model.Ensure<Transform>();
modelTransform.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitY, (float)timing.TotalTime * 0.5f)
* Quaternion.CreateFromAxisAngle(Vector3.UnitX, (float)timing.TotalTime * 0.25f);
renderer.RenderWorld(world);
frames++;
if (timing.TotalTime - lastFpsTime >= 1.0)
{
Console.WriteLine($"FPS: {frames}, Delta: {timing.DeltaTime * 1000.0:F2} ms");
frames = 0;
lastFpsTime = timing.TotalTime;
}
}
Console.WriteLine("Shutting down...");
#if !RELEASE_AOT
if (mcpApp != null)
await mcpApp.StopAsync();
if (mcpTask != null)
await mcpTask;
#endif
}
catch (Exception ex)
{
Console.WriteLine($"Fatal error: {ex}");
Environment.Exit(1);
}
}
private static Mesh LoadModel(string path)
{
return path.EndsWith(".gltf", StringComparison.OrdinalIgnoreCase)
|| path.EndsWith(".glb", StringComparison.OrdinalIgnoreCase)
? GltfLoader.Load(path, new Vector3(0.7f, 0.6f, 0.5f))
: ObjLoader.Load(path, new Vector3(0.7f, 0.6f, 0.5f));
}
private static Mesh CreateGridMesh(int lines, float spacing, Vector3 color)
{
var vertices = new List<Vertex>();
var indices = new List<uint>();
var extent = lines * spacing;
var normal = Vector3.UnitY;
var halfWidth = 0.02f;
for (var i = -lines; i <= lines; i++)
{
var offset = i * spacing;
// Line parallel to X axis as a thin quad.
var baseIndex = (uint)vertices.Count;
vertices.Add(new Vertex(new Vector3(-extent, 0, offset - halfWidth), color, normal));
vertices.Add(new Vertex(new Vector3(extent, 0, offset - halfWidth), color, normal));
vertices.Add(new Vertex(new Vector3(extent, 0, offset + halfWidth), color, normal));
vertices.Add(new Vertex(new Vector3(-extent, 0, offset + halfWidth), color, normal));
indices.Add(baseIndex); indices.Add(baseIndex + 1); indices.Add(baseIndex + 2);
indices.Add(baseIndex); indices.Add(baseIndex + 2); indices.Add(baseIndex + 3);
// Line parallel to Z axis as a thin quad.
baseIndex = (uint)vertices.Count;
vertices.Add(new Vertex(new Vector3(offset - halfWidth, 0, -extent), color, normal));
vertices.Add(new Vertex(new Vector3(offset + halfWidth, 0, -extent), color, normal));
vertices.Add(new Vertex(new Vector3(offset + halfWidth, 0, extent), color, normal));
vertices.Add(new Vertex(new Vector3(offset - halfWidth, 0, extent), color, normal));
indices.Add(baseIndex); indices.Add(baseIndex + 1); indices.Add(baseIndex + 2);
indices.Add(baseIndex); indices.Add(baseIndex + 2); indices.Add(baseIndex + 3);
}
return new Mesh(vertices.ToArray(), indices.ToArray());
}
private static Mesh CreateFloorMesh(float size, Vector3 color)
{
var half = size / 2.0f;
var normal = Vector3.UnitY;
var vertices = new Vertex[]
{
new(new Vector3(-half, 0, -half), color, normal),
new(new Vector3(half, 0, -half), color, normal),
new(new Vector3(half, 0, half), color, normal),
new(new Vector3(-half, 0, half), color, normal)
};
var indices = new uint[] { 0, 1, 2, 0, 2, 3 };
return new Mesh(vertices, indices);
}
private static (string modelPath, int mcpPort) ParseArgs(string[] args)
{
var modelPath = FindModelPath(args);
var mcpPort = 5000;
for (var i = 0; i < args.Length; i++)
{
if (args[i] == "--mcp-port" && i + 1 < args.Length && int.TryParse(args[i + 1], out var port))
{
mcpPort = port;
break;
}
}
return (modelPath, mcpPort);
}
private static string FindModelPath(string[] args)
{
// Skip recognized flags so they are not treated as a model path.
for (var i = 0; i < args.Length; i++)
{
var arg = args[i];
if (arg == "--mcp-port")
{
i++; // skip the value
continue;
}
if (File.Exists(arg))
return arg;
}
var candidates = new[]
{
"Content/cube.obj",
"Models/cube.obj",
"cube.obj"
};
foreach (var candidate in candidates)
{
if (File.Exists(candidate))
return candidate;
}
throw new FileNotFoundException("No model file found. Pass a .obj/.gltf/.glb path as argument or place Content/cube.obj next to the executable.");
}
private static string GenerateCheckerboardTexture(string path, int size)
{
var tileSize = size / 8;
using var image = new Image<Rgba32>(size, size);
for (var y = 0; y < size; y++)
{
for (var x = 0; x < size; x++)
{
var tileX = x / tileSize;
var tileY = y / tileSize;
var isDark = (tileX + tileY) % 2 == 0;
image[x, y] = isDark
? new Rgba32(60, 60, 70, 255)
: new Rgba32(160, 160, 170, 255);
}
}
Directory.CreateDirectory(Path.GetDirectoryName(path)!);
image.SaveAsPng(path);
return path;
}
private static void RunMcpStdioServer()
{
Console.WriteLine("Starting headless stdio MCP server...");
using var world = World.Create();
var processor = new AiCommandProcessor(world, LoadModel, _ => { });
var server = new Engine.AI.Stdio.McpStdioServer(processor);
server.Run();
}
}