feat<RealDrawBoard>:

* option to turn off undos.
* turn off undos by default

Author: HarshKhandeparkar

src/constants/defaults/RealDrawBoardDefaults.ts

@@ -4,6 +4,7 @@ export const RealDrawBoardDefaults: RealDrawBoardOptions = {
   brushSize: 1,
   eraserSize: 2,
   brushColor: [1, 1, 1],
-  maxUndos: 15,
+  allowUndo: false,
+  maxUndos: 10,
   mode: 'paint'
 }

src/renderers/RealDrawBoard/RealDrawBoard.ts

@@ -88,7 +88,7 @@ export class RealDrawBoard extends RealRenderer {
     this.brushColor = options.brushColor;
 
     this.eraserSize = options.eraserSize;
-    this._maxSnapshots = Math.max(options.maxUndos, 1);
+    this._maxSnapshots = options.allowUndo ? Math.max(options.maxUndos + 1, 0) : 0;
 
     this.mode = options.mode;
     // *****DEFAULTS*****

src/types/RealDrawBoardTypes.ts

@@ -6,6 +6,7 @@ export interface RealDrawBoardOptions extends RealRendererOptions {
   brushSize?: number,
   brushColor?: Color,
   eraserSize?: number,
+  allowUndo?: boolean,
   maxUndos?: number,
   mode?: 'paint' | 'erase'
 }