OUT-VOID

Runtime levels that the AI can navigate

PROBLEM

Levels are assembled at runtime, so there is no NavMesh baked in the editor for enemies to path on, and building everything in one frame would freeze the loading screen.

SOLUTION

The first prototype generated a 5×5 tile grid procedurally: weighted tiles (rifts, dunes, rough or smooth ground), random 90° rotations and a single-pass rule that keeps rifts from touching. The current build places an authored map per level from level data, with randomized player and portal spawn points. In both versions NavMeshSurface.BuildNavMesh() bakes navigation right after the map exists, inside a staged coroutine that yields between steps and drives the loading bar.

RESULT

The runtime bake takes 100–150 ms at level load, the loading screen stays responsive, and gameplay holds a stable 60 FPS.

// MapManager.cs (excerpt): build the level in stages, one frame apart
GenerarMapa();                    // instantiate this level's map
barraCargaEscena.value = 0.3f;
yield return null;

ActualizarNavMesh();              // navSurface.BuildNavMesh()
barraCargaEscena.value = 0.5f;
yield return null;

SpawnearJugador();
SpawnearPortales();

Enemies that fall from portals onto the NavMesh

PROBLEM

Enemies drop out of portals in mid-air, but a NavMeshAgent that isn't on the NavMesh can't move, and landing on clutter or a ledge can leave it stuck.

SOLUTION

Enemies fall with a Rigidbody while their agent is disabled. When they touch the ground, NavMesh.SamplePosition finds the nearest walkable point within 4 m and a sphere check confirms there is room. Only then does the body turn kinematic and the agent get enabled and warped onto that point. The Kamikaze then alerts by sight or proximity, chases, and arms for 1.2 s with an accelerating emissive blink before its explosion.

RESULT

Enemies land with physical weight and reliably hand over to pathfinding, and the blink gives players a readable window to react.

// Kamikaze.cs (simplified): physics → NavMesh handoff on landing
if (!haAterrizado && collision.gameObject.CompareTag("Suelo"))
{
    if (NavMesh.SamplePosition(transform.position, out NavMeshHit hit, 4.0f, NavMesh.AllAreas)
        && !Physics.CheckSphere(hit.position, 0.8f, capaObstaculos))
    {
        haAterrizado = true;
        agent.enabled = true;
        agent.Warp(hit.position);
        rb.isKinematic = true;
    }
}

Scattering props on the real terrain

PROBLEM

Every level needs decoration that sits on the actual ground surface, not floating or buried, without placing each object by hand.

SOLUTION

Random points inside the ground's bounds cast rays downward and only accept hits on the ground collider; each hit spawns a random prop with a random rotation. Placement has an attempt budget (15 tries per object) so it always terminates, and some props are limited to slopes under 15°.

RESULT

Each run gets varied decoration that follows the terrain, and level loading can never hang in a placement loop.