Examples

Sixteen runnable samples in src/Box3D.NET.Samples, each headless, self-checking and small enough to read in one sitting. They assert on their own results rather than only printing, so CI runs them — published with NativeAOT — and a regression fails the build instead of producing plausible output nobody reads.

dotnet run --project src/Box3D.NET.Samples -- --list      # what there is
dotnet run --project src/Box3D.NET.Samples -- raycast     # run one
dotnet run --project src/Box3D.NET.Samples                # run all of them

Start here

Sample	Teaches	Guide
`basic-world`	A world, a body, a shape, a step	Getting started
`dynamic-body`	Gravity acting on a falling body	Bodies
`collision`	A falling box landing on static ground	Bodies

Reacting to the simulation

Sample	Teaches	Guide
`raycast`	Closest-hit and callback ray casts	Queries
`contact-events`	Reading contacts after a step	Events
`sensor`	A trigger volume that reports overlaps without colliding	Events
`entities`	Associating game objects with bodies through user data	Getting started

Geometry

Sample	Teaches	Guide
`compound`	Several shapes on one body, and many baked into one	Shapes
`mesh`	Collision against a triangle mesh	Terrain and meshes
`height-field`	Terrain from a height map	Terrain and meshes
`continuous`	A fast body that would otherwise tunnel through a wall	The simulation step

Joints

Sample	Teaches	Guide
`hinged-door`	A revolute joint with limits	Joints
`chain`	A hanging chain of revolute joints	Joints
`vehicle`	A wheeled vehicle built from wheel joints	Joints

The rest

Sample	Teaches	Guide
`character`	A kinematic character walking, sliding and climbing	Characters
`debug-draw`	Feeding the world's debug geometry to a renderer	Debug draw

character is the one to copy. It builds a complete controller — gravity, jumping, ground detection, slope limits, wall sliding — on the three mover primitives in about eighty lines.

Seeing them run

The gallery renders nine scenes to animated GIFs through the public debug draw interface. Same library, same API, a renderer with no privileged access.