{"schemaVersion":1,"record":{"key":"mechanic/phone-motion--family-rhythm","type":"mechanic","id":"phone-motion--family-rhythm","lang":"en","title":"Shaking, repetition and rhythm","summary":"Phone movements become rhythmic input. Just Dance Controller’s handheld mode uses a smartphone held in the dancer’s right hand.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-motion--family-rhythm/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-motion--family-rhythm.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-motion--family-rhythm.md","aliases":[],"tags":["Phone motion interactions","Mechanics catalog"],"sourceIds":["source-9e248e5f84ed1429"],"sources":[{"id":"source-9e248e5f84ed1429","title":"Just Dance Controller","url":"https://apps.apple.com/us/app/just-dance-controller/id1634629424?uo=4","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"A series of movements becomes a number, tempo, intensity or timing pattern."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-rhythm-variants\"></a>\n\n- Shaking like a team. Action: A series of multidirectional oscillations is interpreted as one gesture. Application: Field reset, mixing, clearing an effect, calling an action. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: Count the entire series, and not each half-wave as a separate command. <a id=\"variant-m025\"></a>\n- Accumulation from movement. Action: A measure of the intensity of movement over time fills a virtual resource. Application: Battery charge, warming up, spell energy, creature arousal. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: This is a conditional game resource, not a measurement of work or calories burned. <a id=\"variant-m026\"></a>\n- Counting complete cycles. Action: Completed pairs of phases of a repeating movement are counted. Application: Pump, swing, motor skills trainer, tasks for a certain number of repetitions. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: Do not confuse the cycle with the number of peaks; set the minimum duration and range. <a id=\"variant-m027\"></a>\n- Maintaining the pace. Action: Repetition rate must remain within target range. Applications: Rowing, machine operation, combustion maintenance, rhythmic conveyor. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: Requires several cycles for evaluation; the pace should be comfortable and adapt to the user. <a id=\"variant-m028\"></a>\n- Hitting the musical beat. Action: The impulse is evaluated relative to a given moment. Application: Rhythm game, virtual drum, synchronized action to music. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: Rely on timestamps and take into account audio, sensor and feedback delays. <a id=\"variant-m029\"></a>\n- The right intensity. Action: Success is given for movement within the range, and not for the maximum. Application: Beating a mixture, calibrating a machine, caring for a fragile creature. Sensors: Name: Accelerometer; Value: Sufficient for the specified simplified scenario under the described conditions. Limitations: Show lower and upper bounds; compare a smoothed measure, not a single outlier. <a id=\"variant-m030\"></a>\n- Alternation of directions. Action: The order of movements along the axes or change of direction is checked. Application: Combination “left-right-up”, hacking, dance party, ritual. Sensors: Name: Accelerometer + gyroscope; Meaning: A bunch of sensors for orientation, rotation and separation of movement from gravity. Limitations: With A set a fixed grip; AG helps maintain sense of directions when rotating. <a id=\"variant-m031\"></a>\n- Rocking and changing rhythm. Action: Smooth periodic movement, acceleration or deceleration of the rhythm controls the process. Application: Rocking a character, rocking a swing, accelerating resonance, tempo spell. Sensors: Name: Accelerometer + gyroscope; Meaning: Bundle of sensors for orientation, rotation and separating movement from gravity. Limitations: Separate rotation from linear movement and match the game frequency with a convenient gesture. <a id=\"variant-m032\"></a>"},{"id":"context","title":"Context and limits","body":"96 mechanics and scenarios; Basic gestures, control schemes and derived applications are separated into layers. Examples are design ideas other than individually confirmed products."}],"relations":[],"placements":[{"catalogId":"phone-motion","id":"family-rhythm","title":"Phone motion interactions","url":"https://gamemechanics.pro/en/mechanics/phone-motion/#family-rhythm","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Shaking, repetition and rhythm","description":"Phone movements become rhythmic input. Just Dance Controller’s handheld mode uses a smartphone held in the dancer’s right hand.","image":{"src":"images/mechanics/input-just-dance-controller-2.webp","width":663,"height":1440,"game":"Just Dance Controller","sourceUrl":"https://apps.apple.com/us/app/just-dance-controller/id1634629424?uo=4","originalUrl":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b6/a5/88/b6a58827-cba5-34a3-70dc-05cab7b47a16/JD27_1320x2868_EN_3.jpg/720x1560bb.jpg","credit":"Ubisoft","rights":"Imagery © Ubisoft. Developer-distributed screenshot or frame; all rights reserved. Excluded from MIT and CC BY 4.0.","caption":"Just Dance Controller: handheld mode needs a compatible console","alt":"Just Dance Controller: handheld mode needs a compatible console","markers":[{"x":53,"y":70,"label":"Hand Controller mode uses a phone held in the hand"}]},"tips":["Do not equate one hand’s motion with precise full-body pose tracking."],"examples":[{"title":"Just Dance Controller","url":"https://apps.apple.com/us/app/just-dance-controller/id1634629424?uo=4"}]}},"endsAt":null,"provenance":"Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.","license":"CC-BY-4.0","codeLicense":"MIT","attribution":"gamemechanics.pro contributors","catalogKey":"catalog/phone-motion"}}