Class Triangle

src/maths/shapes/Triangle.ts:29–340

 * @standard
 */
export class Triangle implements ShapePrimitive
{
    /**
     * The type of the object, mainly used to avoid `instanceof` checks
     * @example
     * ```ts
     * // Check shape type
     * const shape = new Triangle(0, 0, 100, 0, 50, 100);
     * console.log(shape.type); // 'triangle'
     *
     * // Use in type guards
     * if (shape.type === 'triangle') {
     *     console.log(shape.x2, shape.y2);
     * }
     * ```
     * @readonly
     * @default 'triangle'
     * @see {@link SHAPE_PRIMITIVE} For all shape types
     */
    public readonly type: SHAPE_PRIMITIVE = 'triangle';

    /**
     * The X coordinate of the first point of the triangle.
     * @example
     * ```ts
     * // Set first point x position
     * const triangle = new Triangle();
     * triangle.x = 100;
     * ```
     * @default 0
     */
    public x: number;

    /**
     * The Y coordinate of the first point of the triangle.
     * @example
     * ```ts
     * // Set first point y position
     * const triangle = new Triangle();
     * triangle.y = 100;
     * ```
     * @default 0
     */
    public y: number;

    /**
     * The X coordinate of the second point of the triangle.
     * @example
     * ```ts
     * // Create horizontal line for second point
     * const triangle = new Triangle(0, 0);
     * triangle.x2 = triangle.x + 100; // 100 units to the right
     * ```
     * @default 0
     */
    public x2: number;

    /**