Function addLine

addLine(
    chart: RpeJson,
    options?: CreateLineOptions,
    createDefualtEvents?: boolean,
): number
Create a new judge line with sensible defaults and append it to the chart's judgeLineList.

The new line has:
- One default event layer (alpha=255, moveX/Y=0, rotation=0, speed=10)
- Default control node arrays (identity transforms)
- An empty notes array
Parameters
- chart: RpeJson
  The RPE chart (modified in place).
- options: CreateLineOptions = {}
  Line creation options.
- createDefualtEvents: boolean = true
Returns number
The index of the newly added line.
Example
```
const li = addLine(chart, { name: 'FX', texture: 'line.png', zOrder: 10 });
addMoveXEvent(chart, li, 0, 0, 4, -675, 675);
```
- Defined in chart-utils.ts:297