Splatter feel pass: baseline turret, tennis duel, rapid serves, bleeding wounds

- Stand at the baseline: in splatter the player is pinned to the baseline
  (a turret, side-to-side only) — the duel is exempt so it keeps free depth.
- Zombie 1:1 duel now plays like real tennis: no free-aim flick, no drag
  reticle; lane aim + the toss-then-hit serve (gate on !G.interlude in
  doHit/hitServe/keyPressed/canAimServe).
- Rapid serves: the two-stage reticle serve now fires mid-rally too — a ball
  still in flight is banished to a ballistic clone so the next serve launches
  at once. Serve as fast as you can drag-release.
- Wounded skins for multi-hit foes: brute (arm off) and racket boss (arm off,
  then headless) swap by remaining hp, with a graceful fallback to the healthy
  sprite. The headless boss is drawn a head shorter so the shoulders line up.
- Dynamic gore: the blood is NOT painted in — open wounds gush live particles
  every frame (arm stumps + a neck geyser on the headless boss), absurdly, and
  bounded so it self-regulates.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

zombies.js

@@ -155,6 +155,23 @@ export function explode(x, z) {
   if (G.idleT - G.lastOrderT > 3) { voice('order', 0.35); G.lastOrderT = G.idleT; } // the umpire loses composure
 }
 
+// wounded zombies gush blood — continuously and absurdly — from every open wound. Anchors are
+// approximate body-height offsets (drawStatic never mirrors, so a fixed side stays put); the
+// parts loop's gravity arcs each spurt into a spray. Bounded so the geyser self-regulates.
+function bleed(zb) {
+  if (parts.length > 520) return; // absurd, but not unbounded
+  let wounds;
+  if (zb.variant === 'g' && zb.hp < TUNE.bruteHp) wounds = [[-0.3, 1.95, 3.2]];              // brute: torn-off arm
+  else if (zb.variant === 'r' && zb.hp <= 1)      wounds = [[0.05, 1.5, 6.5], [0.4, 1.15, 2.6]]; // headless: neck geyser + torn arm
+  else if (zb.variant === 'r' && zb.hp === 2)     wounds = [[0.4, 1.2, 3]];                   // racket: torn-off arm
+  else return;
+  for (const w of wounds)
+    for (let k = 0; k < 4; k++) parts.push({
+      x: zb.x + w[0] + (Math.random() * 2 - 1) * 0.12, y: w[1] + (Math.random() * 2 - 1) * 0.1, z: zb.z + (Math.random() * 2 - 1) * 0.12,
+      vx: (Math.random() * 2 - 1) * 1.9, vy: w[2] * (0.5 + Math.random() * 0.7), vz: (Math.random() * 2 - 1) * 1.4,
+      t: 0.5 + Math.random() * 0.6, dark: Math.random() < 0.45 });
+}
+
 export function updateZombies(dt) {
   moanT -= dt;
   if (moanT <= 0) { moan(); moanT = 2.5 + Math.random() * 4; }
@@ -183,6 +200,8 @@ export function updateZombies(dt) {
     if (!zb) continue; // a kill can cascade into sweepCourt (game won mid-loop) and gut the array under us
     zb.walkT += dt;
     zb.z += zb.v * dt;
+    bleed(zb); // open wounds bleed every frame they're standing
+
     if (zb.shieldT > 0) zb.shieldT -= dt; // staggered chair comes back up when this runs out
     if (zb.variant === 'r') { /* the racket boss holds station — its AI owns its x */ }
     else if (G.mode === 'splatter' && zb.z > COURT.netZ) { // on YOUR half they close in — each on its own lane, not a column