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add platformer window infrastructure

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This commit is contained in:
David Allemang
2018-04-08 20:29:20 -04:00
parent edb2985a98
commit f175dd84f4
12 changed files with 328 additions and 0 deletions
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11
Platformer/Driver.cs Normal file
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namespace Platformer
{
internal static class Driver
{
public static void Main(string[] args)
{
using (var pw = new PlatformWindow())
pw.Run();
}
}
}

74
Platformer/PlatformWindow.cs Normal file
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using System;
using OpenTK;
using OpenTK.Graphics.OpenGL4;
using Platformer.Util;
using Buffer = Platformer.Util.Buffer;
namespace Platformer
{
public class PlatformWindow : GameWindow
{
private Program _render;
private Buffer _vbo;
private Buffer _ibo;
private Vector4[] _verts;
private uint[] _inds;
private VertexArray _vao;
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
_verts = new[]
{
new Vector4(-.5f, -.5f, +0, +1),
new Vector4(-.5f, +.5f, +0, +1),
new Vector4(+.5f, -.5f, +0, +1),
new Vector4(+.5f, +.5f, +0, +1),
};
_inds = new uint[]
{
0, 1, 2,
};
var vert = Shader.Compile("shaders/simple.vert");
var frag = Shader.Compile("shaders/simple.frag");
_render = Program.Link(vert, frag);
_vbo = new Buffer();
_vbo.SetData(_verts);
_ibo = new Buffer();
_ibo.SetData(_inds);
_vao = new VertexArray();
_vao.VertexPointer(_vbo, index: 0, size: 4);
}
protected override void OnRenderFrame(FrameEventArgs e)
{
base.OnRenderFrame(e);
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.Viewport(ClientRectangle);
GL.UseProgram(_render);
GL.BindVertexArray(_vao);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _ibo);
GL.DrawElements(BeginMode.Triangles, _inds.Length, DrawElementsType.UnsignedInt, 0);
GL.Flush();
SwapBuffers();
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
base.OnUpdateFrame(e);
}
}
}

70
Platformer/Platformer.csproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>Platformer</RootNamespace>
<AssemblyName>Platformer</AssemblyName>
<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="OpenTK, Version=3.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4">
<HintPath>..\packages\OpenTK.3.0.0-pre\lib\net20\OpenTK.dll</HintPath>
</Reference>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Data" />
<Reference Include="System.Drawing" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Driver.cs" />
<Compile Include="PlatformWindow.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="Util\Buffer.cs" />
<Compile Include="Util\GlObj.cs" />
<Compile Include="Util\Program.cs" />
<Compile Include="Util\Shader.cs" />
<Compile Include="Util\VertexArray.cs" />
</ItemGroup>
<ItemGroup>
<Content Include="shaders\simple.frag">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
<Content Include="shaders\simple.vert">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>

35
Platformer/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("Platformer")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("Platformer")]
[assembly: AssemblyCopyright("Copyright © 2018")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("9A4A039D-58DF-4FA1-8743-A0CBB452B9D3")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

20
Platformer/Util/Buffer.cs Normal file
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using System;
using System.Runtime.InteropServices;
using OpenTK.Graphics.OpenGL4;
namespace Platformer.Util
{
public class Buffer : GlObj
{
public Buffer() : base(GL.GenBuffer())
{
}
public void SetData<T>(T[] data, BufferUsageHint usage = BufferUsageHint.StaticDraw) where T : struct
{
GL.BindBuffer(BufferTarget.ArrayBuffer, this);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(data.Length * Marshal.SizeOf(typeof(T))), data, usage);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
}
}

14
Platformer/Util/GlObj.cs Normal file
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namespace Platformer.Util
{
public abstract class GlObj
{
public readonly int Id;
public GlObj(int id)
{
Id = id;
}
public static implicit operator int(GlObj o) => o.Id;
}
}

20
Platformer/Util/Program.cs Normal file
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using OpenTK.Graphics.OpenGL4;
namespace Platformer.Util
{
public class Program : GlObj
{
public Program() : base(GL.CreateProgram())
{
}
public static Program Link(params Shader[] shaders)
{
var p = new Program();
foreach (var s in shaders)
GL.AttachShader(p, s);
GL.LinkProgram(p);
return p;
}
}
}

40
Platformer/Util/Shader.cs Normal file
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using System;
using System.Collections.Generic;
using System.IO;
using OpenTK.Graphics.OpenGL4;
namespace Platformer.Util
{
public class Shader : GlObj
{
private static Dictionary<string, ShaderType> _shaderTypes = new Dictionary<string, ShaderType>()
{
[".vert"] = ShaderType.VertexShader,
[".frag"] = ShaderType.FragmentShader,
[".geom"] = ShaderType.GeometryShader,
[".comp"] = ShaderType.ComputeShader,
};
public Shader(ShaderType type) : base(GL.CreateShader(type))
{
}
public static Shader Compile(ShaderType type, string source)
{
var s = new Shader(type);
GL.ShaderSource(s, source);
GL.CompileShader(s);
return s;
}
public static Shader Compile(string filename)
{
var ext = Path.GetExtension(filename);
if (!_shaderTypes.ContainsKey(ext))
throw new InvalidOperationException($"Can't infer shader type for {filename}");
return Compile(_shaderTypes[ext], File.ReadAllText(filename));
}
}
}

26
Platformer/Util/VertexArray.cs Normal file
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using OpenTK.Graphics.OpenGL4;
namespace Platformer.Util
{
public class VertexArray : GlObj
{
public VertexArray() : base(GL.GenVertexArray())
{
}
public void VertexPointer(Buffer buffer, int index, int size,
VertexAttribPointerType type = VertexAttribPointerType.Float,
bool normalized = false, int stride = 0, int offset = 0)
{
GL.BindVertexArray(this);
GL.BindBuffer(BufferTarget.ArrayBuffer, buffer);
GL.VertexAttribPointer(index, size, type, normalized, stride, offset);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.EnableVertexArrayAttrib(this, index);
GL.BindVertexArray(0);
}
}
}

5
Platformer/shaders/simple.frag Normal file
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#version 430
void main () {
gl_Fragcolor = vec4(1);
}

7
Platformer/shaders/simple.vert Normal file
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#version 430
in vec4 pos;
void main () {
gl_Position = pos;
}

6
Tetrahedrons.sln
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@@ -2,6 +2,8 @@
Microsoft Visual Studio Solution File, Format Version 12.00
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tetrahedrons", "Tetrahedrons\Tetrahedrons.csproj", "{D70DFA78-49B4-404B-BE1C-7CDC0DAE26FD}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Platformer", "Platformer\Platformer.csproj", "{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -12,5 +14,9 @@ Global
{D70DFA78-49B4-404B-BE1C-7CDC0DAE26FD}.Debug|Any CPU.Build.0 = Debug|Any CPU
{D70DFA78-49B4-404B-BE1C-7CDC0DAE26FD}.Release|Any CPU.ActiveCfg = Release|Any CPU
{D70DFA78-49B4-404B-BE1C-7CDC0DAE26FD}.Release|Any CPU.Build.0 = Release|Any CPU
{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}.Debug|Any CPU.Build.0 = Debug|Any CPU
{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}.Release|Any CPU.ActiveCfg = Release|Any CPU
{9A4A039D-58DF-4FA1-8743-A0CBB452B9D3}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal