static void RunGame()
{
TimeStopwatch = Stopwatch.StartNew();
InitConsole();
Engine.VFS = new VirtualFileSystem(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
Engine.VFS.Mount("/content/", "./content");
Engine.VFS.Mount("/materials/", "C:/Program Files (x86)/Steam/steamapps/common/GarrysMod/garrysmod/addons/quake_3_gmod_160207505/materials");
string[] SourceGameDirs = Engine.SourceGameDirs.Value.Split(new[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries).Where(Pth => Directory.Exists(Pth)).ToArray();
if (SourceGameDirs.Length > 0)
{
foreach (var GameDir in SourceGameDirs)
{
Engine.VFS.GetSourceProvider().AddRoot(GameDir);
}
}
if (Directory.Exists(Path.Combine(Engine.GamePath, "content")))
{
Engine.VFS.Mount("/content/", Path.Combine(Engine.GamePath, "content"));
}
List <string> ZipResources = new List <string>();
ZipResources.AddRange(Engine.VFS.GetFiles("/content/").Where(P => Path.GetExtension(P) == ".pk3" || Path.GetExtension(P) == ".zip"));
foreach (var ZipResource in ZipResources)
{
Engine.VFS.MountArchive("/content/", ZipResource);
}
FileWatcher.Init("content");
Importers.RegisterAll(Reflect.GetExeAssembly());
Engine.GUI = new NuklearGUI();
Engine.Window = new RenderWindow(Engine.WindowWidth, Engine.WindowHeight, "libTech", Engine.WindowResizable);
Engine.Window.OnMouseMove += Engine.GUI.OnMouseMove;
Engine.Window.OnKey += OnKey;
Engine.Window.OnChar += Engine.GUI.OnChar;
RenderDoc.Init();
GConsole.Init();
GConsole.WriteLine("Running {0}", RenderAPI.Renderer, RenderAPI.Version);
string ExtensionsFile = "extensions.txt";
if (File.Exists(ExtensionsFile))
{
File.Delete(ExtensionsFile);
}
File.WriteAllLines(ExtensionsFile, RenderAPI.Extensions);
EngineRenderer.Init();
Engine.GUI.Init(Engine.Window, new ShaderProgram(new ShaderStage(ShaderType.VertexShader, "content/shaders/gui.vert"), new ShaderStage(ShaderType.FragmentShader, "content/shaders/gui.frag")));
Engine.UI = new libGUI(Engine.Window);
DbgDraw.Init();
Lua.Init();
GConsole.Color = Color.Orange;
foreach (var DllName in FailedToLoadDLLs)
{
GConsole.WriteLine("Failed to load '{0}'", DllName);
}
GConsole.Color = Color.White;
// Graphics init
Gfx.ShadersDirectory = "content/shaders";
//Gfx.Line3D = DefaultShaders.Line3D;
//Gfx.Point3D = DefaultShaders.Point3D;
//Gfx.Default3D = DefaultShaders.DefaultColor3D;
// Camera init
Engine.Camera2D = new Camera();
Engine.Camera2D.SetOrthogonal(0, 0, Engine.Window.WindowWidth, Engine.Window.WindowHeight);
Engine.Camera3D = new Camera();
Engine.Camera3D.SetPerspective(Engine.Window.WindowWidth, Engine.Window.WindowHeight, FarPlane: 16000);
LoadGameDll(Engine.GamePath);
Stopwatch SWatch = Stopwatch.StartNew();
int MaxFPS = Engine.MaxFPS;
if (MaxFPS <= 0)
{
MaxFPS = 900;
}
float FrameCap = 1.0f / MaxFPS;
float Dt = 1.0f / 60.0f;
while (!Engine.Window.ShouldClose)
{
Engine.FrameTime.Push(Dt);
Update(Dt);
EngineRenderer.Draw(Dt);
// TODO: Move frame cap somewhere else
while ((SWatch.ElapsedMilliseconds / 1000.0f) < FrameCap)
{
Thread.Sleep(0);
}
Dt = SWatch.ElapsedMilliseconds / 1000.0f;
SWatch.Restart();
}
}
public static void Draw(float Dt, bool AmbientLighting = true, bool PointLighting = true)
{
RenderDoc.StartFrame();
Engine.GetTexture("skybox").BindTextureUnit(10);
DbgDraw.Enabled = Engine.DebugDraw;
ShaderUniforms.Current.Resolution = Engine.Window.WindowSize;
// Deferred opaque pass
RenderAPI.DbgPushGroup("Deferred opaque pass");
Engine.GBuffer.Push();
{
RenderState RS = Gfx.PeekRenderState();
RS.EnableBlend = false;
Gfx.PushRenderState(RS);
Gfx.Clear(Color.Transparent);
ShaderUniforms.Current.Camera = Engine.Camera3D;
Engine.Map?.DrawOpaque();
Engine.Game.DrawOpaque();
Gfx.PopRenderState();
}
Engine.GBuffer.Pop();
RenderAPI.DbgPopGroup();
// Lighting/transparency pass
RenderAPI.DbgPushGroup("Lighting/transparency pass");
Engine.ScreenRT.Push();
{
// Clear canvas, copy depth buffer, draw skybox
RenderAPI.DbgMessage("Lighting/transparency pass");
Gfx.Clear(Color.Black);
Engine.GBuffer.Framebuffer.Blit(false, true, false, Destination: Engine.ScreenRT.Framebuffer);
Engine.Map?.DrawSkybox();
Engine.GBuffer.Color.BindTextureUnit(0);
Engine.GBuffer.Position.BindTextureUnit(1);
Engine.GBuffer.Normal.BindTextureUnit(2);
Engine.GBuffer.DepthStencil.BindTextureUnit(3);
{
RenderState State = Gfx.PeekRenderState();
State.FrontFace = FrontFace.CounterClockwise;
State.EnableBlend = true;
State.BlendFunc_Src = BlendFactor.SrcAlpha;
State.BlendFunc_Dst = BlendFactor.One;
State.EnableDepthTest = false;
Gfx.PushRenderState(State);
ShaderUniforms.Current.Camera = Engine.Camera2D;
if (AmbientLighting)
{
RenderAPI.DbgPushGroup("Deferred ambient");
// Ambient lighting
ShaderProgram AmbientShader = Engine.GetShader("deferred_ambient");
AmbientShader.Bind(ShaderUniforms.Current);
Engine.ScreenQuad.Draw();
AmbientShader.Unbind();
RenderAPI.DbgPopGroup();
}
// Point lighting
Gfx.PopRenderState();
State.FrontFace = FrontFace.CounterClockwise;
State.EnableDepthMask = false;
State.EnableDepthTest = true;
State.EnableStencilTest = true;
Gfx.PushRenderState(State);
ShaderUniforms.Current.Camera = Engine.Camera3D;
if (Engine.Map != null && PointLighting)
{
DynamicLight[] Lights = Engine.Map.GetLights();
RenderAPI.DbgPushGroup("Point lighting");
for (int i = 0; i < Lights.Length; i++)
{
DbgDraw.DrawCross(Lights[i].Position);
State.SetColorMask(false);
State.EnableBlend = false;
State.EnableDepthTest = true;
State.EnableCullFace = false;
State.StencilFunc(StencilFunction.Always, 0, 0);
State.StencilOpSeparate(StencilFace.Front, StencilOperation.Keep, StencilOperation.IncrWrap, StencilOperation.Keep);
State.StencilOpSeparate(StencilFace.Back, StencilOperation.Keep, StencilOperation.DecrWrap, StencilOperation.Keep);
State.DepthFunc = DepthFunc.LessOrEqual;
Gfx.PushRenderState(State);
Gfx.ClearStencil();
DrawPointLightMask(Lights[i]);
DrawPointLightShadow(Lights[i]);
Gfx.PopRenderState();
State.EnableBlend = true;
State.SetColorMask(true);
State.EnableDepthTest = false;
State.EnableCullFace = true;
State.StencilFunc(StencilFunction.Equal, 1, 0xFF);
State.StencilOp(StencilOperation.Keep, StencilOperation.Keep, StencilOperation.Keep);
Gfx.PushRenderState(State);
ShadePointLight(Lights[i]);
Gfx.PopRenderState();
}
RenderAPI.DbgPopGroup();
}
Gfx.PopRenderState();
}
Engine.GBuffer.DepthStencil.UnbindTextureUnit(3);
Engine.GBuffer.Normal.UnbindTextureUnit(2);
Engine.GBuffer.Position.UnbindTextureUnit(1);
Engine.GBuffer.Color.UnbindTextureUnit(0);
// Draw transparent items
RenderAPI.DbgPushGroup("Transparent items");
Engine.Map?.DrawTransparent();
Engine.Game.DrawTransparent();
RenderAPI.DbgPopGroup();
// Draw debug lines
DbgDraw.FinalizeDraw((long)(Engine.Time * 1000));
}
Engine.ScreenRT.Pop();
RenderAPI.DbgPopGroup();
RenderAPI.DbgPushGroup("2D pass");
{
RenderState State = Gfx.PeekRenderState();
State.EnableDepthTest = false;
Gfx.PushRenderState(State);
{
Gfx.Clear();
ShaderUniforms.Current.Camera = Engine.Camera2D;
ShaderUniforms.Current.TextureSize = Engine.ScreenRT.Color.Size;
ShaderUniforms.Current.MultisampleCount = Engine.ScreenRT.Color.Multisamples;
Gfx.TexturedRectangle(0, 0, Engine.Window.WindowWidth, Engine.Window.WindowHeight, Texture: Engine.ScreenRT.Color, Shader: Engine.GetShader("framebuffer"));
Engine.GUI.Draw(() => {
float FT = Engine.FrameTime.Average();
float FPS = 1.0f / FT;
string DebugString = string.Format("{0} ms\n{1} FPS\n{2} Lights", FT, FPS, Engine.Map.GetLights().Length);
int Lines = 3;
Gfx.DrawText(Engine.UI.DebugFont, new Vector2(2, Engine.WindowHeight - Engine.UI.DebugFont.ScaledLineHeight * Lines - 2), DebugString, Color.White);
Engine.UI.Draw();
Engine.Game.DrawGUI(Dt);
});
}
Gfx.PopRenderState();
}
RenderAPI.DbgPopGroup();
Engine.Window.SwapBuffers();
RenderDoc.EndFrame();
}
