Code

Robot Rumble ALPHA
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const pathfindTo = (state, from, to) => {
    let queue = [];
    let discovered = new Set();
    discovered.add(from.toString());
    queue.push(from);
    while (queue.length > 0) {
      let node = queue.shift();
      if (node.walkingDistanceTo(to) == 0) {
        let path = [node];
        while(node.parent) {
          node = node.parent;
          path.push(node);
        }
        return path;
      }
      for (let direction of [Direction.North, Direction.South, Direction.West, Direction.East]) {
        let newNode = node.add(direction.toCoords);
        let obj = state.objByCoords(newNode);
        let isSameTeam = obj != null && obj.objType == ObjType.Unit && obj.team == state.ourTeam;
        // console.log(obj?.objType == ObjType.Terrain);
        if (obj?.objType != ObjType.Terrain && (!isSameTeam) && !discovered.has(newNode.toString())) {
          discovered.add(newNode.toString());
          newNode.parent = node;
          queue.push(newNode);
        }
      }
    }
    return [];
  };


function robot(state, unit) {
    let enemies = state.objsByTeam(state.otherTeam)
    let closestEnemy = _.minBy(enemies,
      e => e.coords.distanceTo(unit.coords)
    );
    let distance = unit.coords.distanceTo(closestEnemy.coords);
    if (distance === 1) return Action.attack(unit.coords.directionTo(closestEnemy.coords));
    else {
      const path = pathfindTo(state, unit.coords, closestEnemy.coords);
      debug.log("Path", path);
      debug.log("Direction", path[path.length - 2]);
      if (path.length === 0) return null;
      return Action.move(unit.coords.directionTo(path[path.length - 2]));
    }
    let direction = unit.coords.directionTo(closestEnemy.coords);
}