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VaclavEliasVaclavElias
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Merge pull request #203 from VaclavElias/main
feat: New example added - Example01_Basic3DScene_MeshLine
2 parents 55b164c + cf9f73a commit 12e6e71

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‎Stride.CommunityToolkit.sln‎

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@@ -91,6 +91,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Example14_Raycast", "exampl
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Example15_Constraint", "examples\code-only\Example15_Constraint\Example15_Constraint.csproj", "{490BB399-8A47-43C7-9D8C-7D7DF900CB50}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Example01_Basic3DScene_MeshLine", "examples\code-only\Example01_Basic3DScene_MeshLine\Example01_Basic3DScene_MeshLine.csproj", "{24CE40E8-F42C-44E4-936F-86BB74CAFDBF}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{490BB399-8A47-43C7-9D8C-7D7DF900CB50}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{490BB399-8A47-43C7-9D8C-7D7DF900CB50}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{490BB399-8A47-43C7-9D8C-7D7DF900CB50}.Release|Any CPU.Build.0 = Release|Any CPU
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{24CE40E8-F42C-44E4-936F-86BB74CAFDBF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{24CE40E8-F42C-44E4-936F-86BB74CAFDBF}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{24CE40E8-F42C-44E4-936F-86BB74CAFDBF}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{24CE40E8-F42C-44E4-936F-86BB74CAFDBF}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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{A8DBD6E0-47F3-4CAC-A5F9-DA6E4AB78726} = {30457B66-9E10-4290-9744-D0079DE0448B}
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{B442A84F-737B-45CC-B2DE-89495E2FDDBC} = {30457B66-9E10-4290-9744-D0079DE0448B}
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{490BB399-8A47-43C7-9D8C-7D7DF900CB50} = {30457B66-9E10-4290-9744-D0079DE0448B}
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{24CE40E8-F42C-44E4-936F-86BB74CAFDBF} = {30457B66-9E10-4290-9744-D0079DE0448B}
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {C7A8C18E-C1F5-492F-8173-51EC9495B78C}

‎examples/code-only/Example01_Basic3DScene_MeshLine/Example01_Basic3DScene_MeshLine.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net8.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\..\src\Stride.CommunityToolkit.Bepu\Stride.CommunityToolkit.Bepu.csproj" />
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<ProjectReference Include="..\..\..\src\Stride.CommunityToolkit.Skyboxes\Stride.CommunityToolkit.Skyboxes.csproj" />
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<ProjectReference Include="..\..\..\src\Stride.CommunityToolkit.Windows\Stride.CommunityToolkit.Windows.csproj" />
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</ItemGroup>
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</Project>

‎examples/code-only/Example01_Basic3DScene_MeshLine/NamespaceAnchor.cs‎

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namespace Example01_Basic3DScene_MeshLine;
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/// <summary>
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/// This empty class is here to make the namespace available in the nameof() operator in the main examples project.
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/// </summary>
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internal static class NamespaceAnchor;

‎examples/code-only/Example01_Basic3DScene_MeshLine/Program.cs‎

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using Stride.CommunityToolkit.Bepu;
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using Stride.CommunityToolkit.Engine;
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using Stride.CommunityToolkit.Rendering.Gizmos;
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using Stride.CommunityToolkit.Rendering.ProceduralModels;
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using Stride.CommunityToolkit.Skyboxes;
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using Stride.Core.Mathematics;
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using Stride.Engine;
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using Stride.Graphics;
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using Stride.Rendering;
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using Buffer = Stride.Graphics.Buffer;
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using var game = new Game();
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game.Run(start: Start);
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void Start(Scene rootScene)
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{
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game.SetupBase3DScene();
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game.AddSkybox();
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var lineEntity = CreateLineEntity(game);
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var entity1 = CreateSphereEntity(game);
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entity1.Transform.Position = new Vector3(0, 8, 0);
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entity1.AddChild(lineEntity);
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var entity2 = CreateSphereEntity(game);
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entity2.Transform.Position = new Vector3(-0.01f, 9, -0.01f);
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entity1.Scene = rootScene;
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entity2.Scene = rootScene;
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};
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static Entity CreateSphereEntity(Game game)
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=> game.Create3DPrimitive(PrimitiveModelType.Sphere);
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static Entity CreateLineEntity(Game game)
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{
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// Create vertex buffer with start and end points
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var vertices = new Vector3[] { new(0, 0, 0), new(1, 1, -1) };
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var vertexBuffer = Buffer.New(game.GraphicsDevice, vertices, BufferFlags.VertexBuffer);
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// Create index buffer
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var indices = new short[] { 0, 1 };
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var indexBuffer = Buffer.New(game.GraphicsDevice, indices, BufferFlags.IndexBuffer);
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var material = GizmoEmissiveColorMaterial.Create(game.GraphicsDevice, Color.DarkMagenta);
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// Or use this for a specific color
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//var material = game.CreateMaterial(Color.DarkMagenta);
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var meshDraw = new MeshDraw
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{
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PrimitiveType = PrimitiveType.LineList,
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VertexBuffers = [new VertexBufferBinding(vertexBuffer, new VertexDeclaration(VertexElement.Position<Vector3>()), vertices.Length)],
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IndexBuffer = new IndexBufferBinding(indexBuffer, is32Bit: false, indices.Length),
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DrawCount = indices.Length
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};
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var mesh = new Mesh { Draw = meshDraw };
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var model = new Model { mesh, material };
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return new Entity { new ModelComponent(model) };
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}

‎examples/code-only/Example14_Raycast/Program.cs‎

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using Stride.BepuPhysics;
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using Stride.CommunityToolkit.Bepu;
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using Stride.CommunityToolkit.Engine;
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using Stride.CommunityToolkit.Helpers;
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using Stride.CommunityToolkit.Rendering.Gizmos;
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using Stride.CommunityToolkit.Rendering.ProceduralModels;
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using Stride.CommunityToolkit.Skyboxes;
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using Stride.Core.Mathematics;
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using Stride.Engine;
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using Stride.Games;
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using Stride.Graphics;
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using Stride.Input;
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using Stride.Rendering;
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using Buffer = Stride.Graphics.Buffer;
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CameraComponent? camera = null;
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ModelComponent? lineModelComponent = null;
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Entity? entity = null;
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BodyComponent? body = null;
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Buffer? vertexBuffer = null;
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Vector3[] vertices = new Vector3[2]; // Start and end points
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bool isMoving = false;
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using var game = new Game();
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{
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game.SetupBase3DScene();
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game.AddSkybox();
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game.AddProfiler();
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game.AddGroundGizmo(new(-5, 0, -5), showAxisName: true);
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var entity = game.Create3DPrimitive(PrimitiveModelType.Sphere);
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entity = game.Create3DPrimitive(PrimitiveModelType.Sphere);
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entity.Transform.Position = new Vector3(0, 8, 0);
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body = entity.Get<BodyComponent>();
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entity.Scene = scene;
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camera = scene.GetCamera();
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var lineEntity = CreateLineEntity(game);
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entity.AddChild(lineEntity);
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}
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void Update(Scene scene, GameTime time)
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{
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if (camera == null) return;
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game.DebugTextSystem.Print("Click the sphere to apply a random impulse", new(5, 10));
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game.DebugTextSystem.Print("Click the ground to apply a direction impulse", new(5, 30));
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game.DebugTextSystem.Print("Click the sphere to stop moving", new(5, 50));
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if (game.Input.IsMouseButtonPressed(MouseButton.Left))
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{
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var hit = camera.Raycast(game.Input.MousePosition, 100, out var hitInfo);
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if (hit)
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{
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var body = hitInfo.Collidable.Entity.Get<BodyComponent>();
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Console.WriteLine($"Hit entity: {hitInfo.Collidable.Entity.Name}");
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if (body is null) return;
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if (hitInfo.Collidable.Entity == entity && body != null)
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{
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body.LinearVelocity = Vector3.Zero;
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body.AngularVelocity = Vector3.Zero;
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var randomDirection = VectorHelper.RandomVector3([-1, 1], [0, 1], [-1, 1]);
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return;
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}
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Console.WriteLine($"{hitInfo.Collidable.Entity}, direction: {randomDirection}");
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// ToDo: This point needs to be corrected, because lineEntity is a chidld of entity
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// Update the end vertex
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vertices[1] = hitInfo.Point;
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body.ApplyImpulse(randomDirection * 2, new());
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// Re-upload vertex data to GPU
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vertexBuffer?.SetData(game.GraphicsContext.CommandList, vertices);
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//Console.WriteLine($"{hitInfo.Collidable.Entity}, direction: {randomDirection}");
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if (body is null) return;
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body.ApplyImpulse(hitInfo.Point * 0.5f, new());
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body.Awake = true;
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isMoving = true;
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}
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else
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{
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Console.WriteLine("No hit");
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}
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}
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}
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Entity CreateLineEntity(Game game)
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{
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// Initialize vertices (start at origin, end at origin)
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vertices[0] = Vector3.Zero;
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vertices[1] = Vector3.One;
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// Create vertex buffer with start and end points
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vertexBuffer = Buffer.New(game.GraphicsDevice, vertices, BufferFlags.VertexBuffer);
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// Create index buffer
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var indices = new ushort[] { 0, 1 };
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var indexBuffer = Buffer.New(game.GraphicsDevice, indices, BufferFlags.IndexBuffer);
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var meshDraw = new MeshDraw
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{
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PrimitiveType = PrimitiveType.LineList,
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VertexBuffers = [new VertexBufferBinding(vertexBuffer, new VertexDeclaration(VertexElement.Position<Vector3>()), vertices.Length)],
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IndexBuffer = new IndexBufferBinding(indexBuffer, is32Bit: false, indices.Length),
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DrawCount = indices.Length
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};
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var mesh = new Mesh { Draw = meshDraw };
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lineModelComponent = new ModelComponent { Model = new Model { mesh, GizmoEmissiveColorMaterial.Create(game.GraphicsDevice, Color.DarkMagenta) } };
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return new Entity { lineModelComponent };
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}

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