()
| 21 | } |
| 22 | |
| 23 | override async didApply(): Promise<ActionApplyResult> { |
| 24 | this.engine.state({ |
| 25 | particles: '' |
| 26 | }); |
| 27 | return { advance: true }; |
| 28 | } |
| 29 | |
| 30 | override async revert(): Promise<void> { |
| 31 | const history = this.engine.history('particle') as string[]; |