<!-- SOLID CITY · part 594 -->
(k.ShiftLeft || k.ShiftRight || mag > 0.95 && IS_TOUCH ? 22 : 12) * mag;
    if (S.rfly) sp *= 2.2; // royal flight: the superhero covers ground
    var fx = -Math.sin(S.camYaw), fz = -Math.cos(S.camYaw), rx = Math.cos(S.camYaw), rz = -Math.sin(S.camYaw);
    var vx = (fx * -my + rx * mx) / (Math.hypot(mx, my) || 1), vz = (fz * -my + rz * mx) / (Math.hypot(mx, my) || 1);
    P.x += vx * sp * dt; P.z += vz * sp * dt;
    var want = Math.atan2(vx, vz), dA = ((want - P.face + Math.PI * 3) % (Math.PI * 2)) - Math.PI; P.face += dA * Math.min(1, dt * 10);
    P.walk = (P.walk || 0) + dt * sp * 1.4;
  }
  if (S.ai && !DRV) { // Hyper Controller AI walk: user input always wins
    if (mag > 0.08) S.ai(null);
    else { var st = S.ai(dt); if (st) { P.x += st.vx * dt; P.z += st.vz * dt; var wa = Math.atan2(st.vx, st.vz), da = ((wa - P.face + Math.PI * 3) % (Math.PI * 2)) - Math.PI; P.face += da * Math.min(1, dt * 8); P.walk = (P.walk || 0) + dt * st.sp * 1.1; mag = 1; } }
  }
  if (DRV) driveStep(dt);
  else if (window.CityFleet && CityFleet.active()) CityFleet.stepDrive(dt);
  // everything visible is solid
  collideXZ(P, DRV ? 1.15 : 0.45, P.y + 1);
  var sx = SABLE_POS.x - P.x, sz = SABLE_POS.z - P.z, sd = Math.hypot(sx, sz); if (sd < 1.3 && sd > 0) { P.x = SABLE_POS.x - sx / sd * 1.3; P.z = SABLE_POS.z - sz / sd * 1.3; }
  var RF = !!S.rfly;
  if (RF) {
    var rise = S.rflyRise || 0;
    if (k.KeyR || k.Space) rise = 1; if (k.KeyF) rise = -1;
    S.rflyT = (S.rflyT || 0) + dt;
    if (S.rflyLand) rise = -1; else if (rise === 0 && S.rflyT < 1.1) rise = 1; // the lift-off
    S.rflyV = (S.rflyV || 0) + (rise * 14 - (S.rflyV || 0)) * Math.min(1, dt * 6);
    P.y += S.rflyV * dt;
    if (P.y > 420) P.y = 420;
  }
  var gy = groundAt(P.x, P.z); if (gy < 0.5) { gy = 0.5; } // wading at the shore, no deeper
  if (window.CityForge) { var fy = CityForge.standY(P.x, P.z, P.y); if (fy > gy) gy = fy; }   // stand on Forge pieces (steps, slabs)
  if (window.CityAncestorRoads && CityAncestorRoads.topY) { var ap = CityAncestorRoads.pos; if (Math.hypot(P.x - ap.x, P.z - ap.z) < 560) { var ay = CityAncestorRoads.topY(); if (ay > gy) gy = ay; } }   // stand on the Ancestral Roads terrace
  if (window.CityVillageMauna && CityVillageMauna.standY) { var vy = CityVillageMauna.standY(P.x, P.z); if (vy > gy) gy = vy; }
  if (window.CityMountainHomes && CityMountainHomes.standY) { var mhy = CityMountainHomes.standY(P.x, P.z, P.y); if (mhy > gy) gy = mhy; }   // stand in the Ancestors' Homes (pads, lanai, floors, stairs)   // stand on Kauhale Mauna terraces
  if (window.CitySkyTrain && CitySkyTrain.standY) { var sky2 = CitySkyTrain.standY(P.x, P.z, P.y); if (sky2 > gy) gy = sky2; }   // stand on the sky trains' observation decks + the ward station discs
  if (window.CityRingCity && CityRingCity.standY) { var rc2 = CityRingCity.standY(P.x, P.z, P.y); if (rc2 > gy) gy = rc2; }   // stand on the Ring City's floors and port
  if (window.CityTunnelBore && CityTunnelBore.standY) { var ty = CityTunnelBore.standY(P.x, P.z); if (ty > gy) gy = ty; }   // stand on the Bore floor
  if (window.CityStarwell && CityStarwell.standY) { var wy = CityStarwell.standY(P.x, P.z); if (wy > gy) gy = wy; }   // stand on the Starwell floor
  if (window.CityHyperTrain && CityHyperTrain.standY) { var hy = CityHyperTrain.standY(P.x, P.z); if (hy > gy) gy = hy; }   // stand on train platforms
  if (window.CityHyperCity && CityHyperCity.standY) { var hcy = CityHyperCity.standY(P.x, P.z); if (hcy > gy) gy = hcy; }   // stand on hyper building floors
  if (window.CityAnnex && CityAnnex.standY) { var any = CityAnnex.standY(P.x, P.z); if (any > gy) gy = any; }   // stand on the Annex floors
  if (window.CityQuadrantCrown && CityQuadrantCrown.standY) { var qcy = CityQuadrantCrown.standY(P.x, P.z); if (qcy > gy) gy = qcy; }   // stand on Quadrant Crown floors
  if (window.CitySpaceport && CitySpaceport.standY) { var spy = CitySpaceport.standY(P.x, P.z); if (spy > gy) gy = spy; }
  if (window.CityLostWings && CityLostWings.standY) { var lwy = CityLostWings.standY(P.x, P.z, P.y); if (lwy > gy) gy = lwy; }
  if (window.CityOctaPool && CityOctaPool.standY) { var opy = CityOctaPool.standY(P.x, P.z, P.y); if (opy > gy) gy = opy; }
  if (window.CitySkyward && CitySkyward.standY) { var sky = CitySkyward.standY(P.x, P.z, P.y); if (sky > gy) gy = sky; }   // stand on the Skyway Branch deck
  if (window.CityJubilee && CityJubilee.standY) { var jub = CityJubilee.standY(P.x, P.z, P.y); if (jub > gy) gy = jub; }   // stand on the Jubilee discs
  if (window.CitySouthGate && CitySouthGate.standY) { var sgt = CitySouthGate.standY(P.x, P.z, P.y); if (sgt > gy) gy = sgt; }   // stand on the South Gate's deck
  if (window.CityWardHouses && CityWardHouses.standY) { var wh = CityWardHouses.standY(P.x, P.z, P.y); if (wh > gy) gy = wh; }   // stand in the Pilot House + on the joins
  if (window.CityBetweenStones && CityBetweenStones.standY) { var bsy = CityBetweenS