This started as a test bed: I wanted to see how Photon Fusion 2 and Photon Voice 2 behave inside a real scene with doors, guards and a getaway, not inside a vendor demo. It grew into a playable solo heist - get into the pawn shop, crack the safe, carry the bags out past guards and police, drive away. The level, props, characters and UI are produced by editor code, which is the only reason one person could keep a project this size coherent. The multiplayer it was built to exercise has not been run yet: no Photon App Id, so no second player.
Constraint
No art team, no level designer, no budget. Everything the player walks through has to come from free asset packs plus code, and the whole block has to be rebuildable from scratch after any change.
Decisions
Source
The stairs decision in code: each step is a cube with its collider stripped, and one hidden, rotated slab underneath is what the player and the NavMesh actually stand on. Two of the three comments are mine for this page; the rest is verbatim.
public static void Stairs(Transform parent, string name, Vector3 start, Vector3 direction, float run,
float rise, float width, int steps, Material material)
{
var root = Empty(name, parent, Vector3.zero).transform;
Vector3 dir = new Vector3(direction.x, 0f, direction.z).normalized;
Vector3 side = Vector3.Cross(Vector3.up, dir);
float stepRun = run / steps;
float stepRise = rise / steps;
for (int i = 0; i < steps; i++)
{
float top = start.y + stepRise * (i + 1);
Vector3 centre = start + dir * (stepRun * (i + 0.5f));
centre.y = top - stepRise * 0.5f;
var go = GameObject.CreatePrimitive(PrimitiveType.Cube);
go.name = "Step";
go.transform.SetParent(root, false);
go.transform.localPosition = centre;
go.transform.localRotation = Quaternion.LookRotation(dir, Vector3.up);
go.transform.localScale = new Vector3(width, stepRise, stepRun);
go.GetComponent<MeshRenderer>().sharedMaterial = material;
Object.DestroyImmediate(go.GetComponent<Collider>()); // the eye gets steps
}
BuildRamp(root, start, dir, side, run, rise, width); // the feet get a slope
}
private static void BuildRamp(Transform parent, Vector3 start, Vector3 dir, Vector3 side,
float run, float rise, float width)
{
const float thickness = 0.4f;
float slope = Mathf.Sqrt(run * run + rise * rise);
Vector3 alongSlope = (dir * run + Vector3.up * rise).normalized;
Quaternion rotation = Quaternion.LookRotation(alongSlope, Vector3.Cross(alongSlope, side).normalized);
// Sit the ramp so its top face passes through the step noses.
Vector3 topMid = start + dir * (run * 0.5f) + Vector3.up * (rise * 0.5f);
Vector3 centre = topMid - rotation * Vector3.up * (thickness * 0.5f);
var go = GameObject.CreatePrimitive(PrimitiveType.Cube);
go.name = "RampCollider";
go.transform.SetParent(parent, false);
go.transform.localPosition = centre;
go.transform.localRotation = rotation;
go.transform.localScale = new Vector3(width, thickness, slope);
go.GetComponent<MeshRenderer>().enabled = false; // never drawn, always walked on
}Numbers
Stack
Retro
Networking is integrated and compiles against the real SDKs, but it has never carried four players, because I do not have a Photon App Id yet. I will not call the multiplayer done until I have watched it break under real latency and packet loss - anything else would be a claim I cannot back. Generating everything from code was right for a solo project, and it is the first thing I would reconsider the moment a level designer joined: the tooling that liberates one person becomes a wall for the second.
Next
Contact
Tell me what you are building and what is in the way. I answer personally, usually the same day.