Orbiting projectiles

Three questions for the mechanic

• Can the whole orbit be read before contact?

  Show the anchor, complete radius, direction, projectile count, and spacing together. A player should be able to predict every occupied position rather than infer the rear half after it arrives.

• Does commitment preserve the formation?

  Lock radius, angular speed, direction, and relative spacing when collision begins. Check each projectile body separately so the safe gap shown by the signal matches the gap used by collision.

• Does the response stay reachable through motion?

  Sweep the full player body through the intended route over time. Leave enough angular and radial clearance to follow a gap, enter a pocket, or remain outside without requiring an unstated dash or invulnerability window.

Design mistakes

• The back half appears without a signal

  Showing only the nearest projectiles hides count and spacing. Reveal the entire formation or use a persistent orbit guide before the active rotation.

• The orbit changes radius during the dodge

  Unannounced contraction or expansion erases a planned pocket. Treat a radius change as a new signal and commitment instead of silently modifying the active rule.

• The visual gap is smaller in collision

  Large hidden hitboxes turn a readable opening into a trap. Test projectile radius plus the player’s full body and keep effects from obscuring the true clearance.

Tune the attack

• Store one formation state

  Represent anchor, radius, base angle, angular speed, direction, count, projectile radius, and activation time once. Derive rendering and collision from that same state.

• Measure the narrowest gap

  Compute edge-to-edge clearance between neighboring projectiles, not only their center angles. Compare it with the player diameter and movement available during the crossing window.

• Keep the anchor legible

  If the boss moves, decide whether the formation follows rigidly, lags, or remains world-anchored. Signal that relationship because it changes every future projectile position.

• Escalate one orbital variable at a time

  Later variants can reverse direction, add a second radius, or release selected projectiles. Give each change its own cue so the learned base orbit still supports prediction.

Arena

• What the mechanic communicates

  An orbit makes Kern feel like the stable center of a rune system rather than a source of disposable shots. The ordered formation gives Tavi a visible moving boundary that can be understood before it must be crossed.

Player upgrades

• Adapt it to the player verbs

  Basic movement can follow a wide gap or stay beyond the perimeter. A dash can cross a narrower opening, while block, parry, or projectile destruction may remove one body; state whether the remaining formation closes the gap or preserves its spacing.

Do not confuse this with

• Keep the mechanic distinct

  Orbiting projectiles stay bound to an anchor while their positions rotate. A ring volley launches outward, a spiral barrage expands along a path, and rotating beams create continuous radial segments. Preserve the persistent anchor and discrete spacing.