Basic2D Scene (Falling Shapes)

Create a minimal 2D scene using toolkit helpers and place multiple capsule primitives with flat materials. Demonstrates primitive creation, basic positioning, and attaching the entities to the scene. The shapes will fall due to physics, showcasing the integration of Bepu physics in a 2D scene.

The Program.cs file shows how to:

Creating a 2D primitive with Create2DPrimitive
Applying a flat material with CreateFlatMaterial
Setting an entity position through primitive options
Adding entities to a Scene (rootScene)
Using helpers: SetupBase2DScene

View on GitHub.

using Stride.BepuPhysics.Definitions.Colliders;
using Stride.CommunityToolkit.Bepu;
using Stride.CommunityToolkit.Engine;
using Stride.CommunityToolkit.Rendering.ProceduralModels;
using Stride.Core.Mathematics;
using Stride.Engine;

const int ShapeCount = 30;

using var game = new Game();

game.Run(start: Start);

void Start(Scene rootScene)
{
    game.SetupBase2DScene();
    game.AddProfiler();

    var otherShape = game.Create2DPrimitive(Primitive2DModelType.Rectangle, new()
    {
        Material = game.CreateFlatMaterial(Color.Gold),
        Size = new Vector2(0.5f, 0.8f)
    });
    otherShape.Transform.Position = new Vector3(0.2f, 4f, 0);
    otherShape.Scene = rootScene;

    for (int i = 0; i <= ShapeCount; i++)
    {
        var shape = game.Create2DPrimitive(Primitive2DModelType.Capsule, new()
        {
            Material = game.CreateFlatMaterial(Color.White),
            Component = new Body2DComponent()
            {
                Collider = new CompoundCollider(),
                FrictionCoefficient = 0.35f
            }
        });
        shape.Transform.Position = new Vector3(0.001f * i, 10 + i * 2, 0);
        shape.Scene = rootScene;
    }
}

Table of Contents

Basic2D Scene (Falling Shapes)