Generate Wave card for Game Builder

generate_wave.js

// User-editable properties for this card:
export const PROPS = [
  propNumber('range', 10)
];

// Make surrounding things tagged with "wave" do The Wave
export function onTick() {
  card.cycle = (card.cycle || 0) + 1;

  let actors = overlapSphere(getPos(), props.range);
  actors = actors.filter(function(a) { return hasTag("wave", a); });
  actors.sort(function(a1, a2) {
    if (getDistanceTo(a1) < getDistanceTo(a2)) {
      return 1;
    } else {
      return -1;
    }
  });
  // Find all the ones tagged "wave", and make them oscillate
  for (let i = 0; i < actors.length; i++) {
    let actor = actors[i];
    let mag = (card.cycle + i * 10) % 100 == 0 ? 5 : 0;
    push(actor, getUp(mag, actor));
  }
}

export function onResetGame() {
  card.cycle = 0;
}

Updated to fix bug where non-wave actors entering or leaving the overlapSphere could cause some wave objects to get double-boosted.