function onTouchStart()

in src/lib/OrbitControls.js [739:787]

• 25 lines of code
• 9 McCabe index (conditional complexity)

        function onTouchStart(event) {

            if (scope.enabled === false) return;

            switch (event.touches.length) {

                case 1:	// one-fingered touch: rotate

                    if (scope.enableRotate === false) return;

                    handleTouchStartRotate(event);

                    state = STATE.TOUCH_ROTATE;

                    break;

                case 2:	// two-fingered touch: dolly

                    if (scope.enableZoom === false) return;

                    handleTouchStartDolly(event);

                    state = STATE.TOUCH_DOLLY;

                    break;

                case 3: // three-fingered touch: pan

                    if (scope.enablePan === false) return;

                    handleTouchStartPan(event);

                    state = STATE.TOUCH_PAN;

                    break;

                default:

                    state = STATE.NONE;

            }

            if (state !== STATE.NONE) {

                scope.dispatchEvent(startEvent);

            }

        }