Fixing not recreating canvas context if it already exists.

Author: Ad5001

common/src/module/canvas.mjs

@@ -212,8 +212,9 @@ class CanvasAPI extends Module {
  */
  redraw() {
  if(!this.initialized) throw new Error("Attempting redraw before initialize!")
+ if(this.#ctx == null)
+ this.#ctx = this.#canvas.getContext("2d")
  this.#redrawCount = (this.#redrawCount + 1) % 10000
- this.#ctx = this.#canvas.getContext("2d")
  this._computeAxes()
  this._reset()
  this._drawGrid()