rpg-dialogue-js
Version:
A simple roleplay game dialogue engine and editor.
38 lines • 1.73 kB
JavaScript
/**
* @author Ikaros Kappler
* @modified 2021-01-22
* @version 1.0.0
*/
/**
* @classdesc A helper for handling circles with an additional radius-control-point.
*/
export class CircleSectorHelper {
/**
* The constructor.
*
* @constructor
* @name CircleSectorHelper
* @param {CircleSector} circleSector - The circle sector to handle.
* @param {Vertex} controlPointStart - A point to define the radius and start angle (distance and angle from center).
* @param {Vertex} controlPointEnd - A point to define the radius and end angle (distance and angle from center).
* @param {PlotBoilerplate} pb - The PlotBoilerplate which contains the circle sector and both points.
**/
constructor(circleSector, controlPointStart, controlPointEnd, pb) {
circleSector.circle.center.listeners.addDragListener((e) => {
controlPointStart.add(e.params.dragAmount);
controlPointEnd.add(e.params.dragAmount);
});
controlPointStart.listeners.addDragListener((e) => {
circleSector.circle.radius = circleSector.circle.center.distance(controlPointStart);
controlPointEnd.set(circleSector.circle.vertAt(circleSector.endAngle));
circleSector.startAngle = circleSector.circle.center.angle(controlPointStart);
});
controlPointEnd.listeners.addDragListener((e) => {
circleSector.circle.radius = circleSector.circle.center.distance(controlPointEnd);
controlPointStart.set(circleSector.circle.vertAt(circleSector.startAngle));
circleSector.endAngle = circleSector.circle.center.angle(controlPointEnd);
});
}
}
;
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