Varesa / Chevreuse / Iansan / Mavuika

# KQM Iansan quick guide, Iansan / Varesa / Chevreuse / Mavuika:
#   Varesa ECP1 > Chevreuse Q hE > Iansan ECQ > Mavuika Q C2D E / EQ C2D >
#   Varesa (ECP sQ)1 ECP ECP (sQ) ECP ECP (sQ) CP CP
#   1 first rotation
# Varesa's combo in gcsim (ECP when her skill is ready, else CP; the
# 30-energy burst after a plunge out of Fiery Passion) is the one of the
# community config behind Varesa / Bennett / Mavuika / Chevreuse
# (db.kqm.gg), the same team with Bennett for Iansan.
fn varesa_combo(amt) {
  for let j = 0; j < amt; j = j + 1 {
    if .varesa.skill.ready {
      varesa skill, attack, high_plunge[collision=1];
    } else {
      varesa charge, high_plunge[collision=1];
    }
    if .varesa.energy >= 30 && .varesa.status.apex-drive {
      varesa burst;
    }
  }
}
# Iansan's burst restores Nightsoul points from the active character's
# movement, which gcsim counts only when the rotation reports it. The
# Iansan quick guide says Varesa easily keeps Iansan's Nightsoul points
# above 42 for the higher ATK buff (said of her Furina / Xianyun team;
# same carry and combo), so every action reports movement at 9 m/s since
# the previous one: the lowest speed tried (6, 9, 12) above which the
# score stops rising, so her higher ATK buff stays up (design §5.4).
let _last = f();
let _ea = execute_action;
fn execute_action(c number, a number, p map) {
  let now = f();
  movement(9 * (now - _last) / 60);
  _last = now;
  return _ea(c, a, p);
}
active varesa;
let first = 1;
if first == 1 {
  varesa_combo(1);
}
if .chevreuse.burst.ready {
  chevreuse burst;
}
chevreuse skill[hold=1];
iansan skill, charge, burst;
if first == 1 {
  mavuika burst, charge:2, dash, skill;
  varesa_combo(7);
} else {
  mavuika skill, burst, charge:2, dash;
  varesa_combo(6);
}
first = 0;