Method changeMapCol

src/EECBSVisualizer.jsx:263–278

(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,
      numCol: t,
      map: this.createEmptyMap(this.state.numRow, t),
      agents: [],
      numAgents: 0,
      startToAdd: false,
      goalToAdd: false,
      addedSRowClick: null,
      addedSColClick: null,
    });
  }

  handleAddAgent(e) {
    e.preventDefault();