Method changeMapCol

src/MAPFVisualizer.jsx:259–265

(e)

  }

  changeMapCol(e) {
    let t = parseInt(e.target.value);
    t = t > 30 ? 30 : t < 4 ? 4 : t;
    t = Math.max(t, this.state.numRow);
    this.setState({ tempCol: t });
    this.adjustMap(this.state.numRow, t, this.createEmptyMap(this.state.numRow, t));
  }

  handleAddAgent(e) {
    e.preventDefault();