b3d-radar

A radar sensor you attach to a platform (an aircraft, a turret). It enumerates the scene's radar-blips, detects those in range · profile and inside its cone, and acquires locks on the nearest opposed contacts — all via the pure, tested radar model. Nest it in the thing it rides:

b3dAircraft({ player: true, y: 0 },
  b3dRadar({ range: 250, coneDeg: 90, lockTime: 1.5, maxLocks: 2 }))

The platform reads radar.tracks (to plot the HUD) and radar.nearestLock (a homing missile's target — no lock ⇒ the missile flies ballistic). A turret wants a cheap one: maxLocks: 1, alignment: 'hostile' (so it only locks the player).

Attributes

Attribute	Default	Description
`range`	`250`	Nominal range — a `profile 1` blip is detected within this.
`coneDeg`	`90`	Detection cone HALF-angle (deg). `90` = front hemisphere.
`lockTime`	`1.5`	Seconds of continuous detection to acquire a lock (`0` = instant).
`maxLocks`	`2`	Max simultaneous locks (the nearest opposed contacts).
`alignment`	`'friendly'`	This radar's own faction. It locks only opposed blips (friendly⇄hostile); neutrals/waypoints show but never lock.
`updateInterval`	`100`	Radar refresh period (ms). Runs below frame-rate and is dithered across frames so many radars don't all recompute the same frame.