{"schemaVersion":1,"record":{"key":"mechanic/phone-camera--family-body","type":"mechanic","id":"phone-camera--family-body","lang":"en","title":"Posture, body movement and active play","summary":"Body pose and motion replace buttons. In Active Arcade the player moves in front of the phone camera to interact with onscreen targets.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-camera--family-body/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-camera--family-body.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-camera--family-body.md","aliases":[],"tags":["Phone camera interactions","Mechanics catalog"],"sourceIds":["source-d3f05312a925ada0","source-186323c99307fc90"],"sources":[{"id":"source-d3f05312a925ada0","title":"MediaPipe Pose Landmarker","url":"https://developers.google.com/edge/mediapipe/solutions/vision/pose_landmarker","verifiedAt":null},{"id":"source-186323c99307fc90","title":"Active Arcade","url":"https://apps.apple.com/us/app/active-arcade/id1553158383?uo=4","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"The phone is installed so that the camera sees the necessary parts of the body. The player needs a visible and free area of ​​space. Posture assessments are approximate and do not replace diagnostics or professional assessment of exercise technique."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-body-variants\"></a>\n\n- The body is like a joystick. Action: Move the body relative to the calibrated center. Application: Runway control, flight, balancing arcade. Technologies: Recognition or machine learning model. <a id=\"variant-cam-097\"></a>\n- Repeat the pose. Action: Match the position of the main joints with the sample. Application: “Wall of poses”, dance movement training, living sculpture. Technologies: Recognition or machine learning model. <a id=\"variant-cam-098\"></a>\n- Squatting and standing up. Action: Cross calibrated pelvic and knee position thresholds. Application: Evasion, jump charge, motor mini-game. Technologies: Recognition or machine learning model. <a id=\"variant-cam-099\"></a>\n- Raising hands and steps. Action: Perform visible actions with the desired limb. Application: Rhythm game, warm-up, coordination tasks. Technologies: Recognition or machine learning model. <a id=\"variant-cam-100\"></a>\n- Angles and amplitude. Action: Achieve a given joint position range. Application: Motor puzzle, avatar size control, coordination training. Technologies: Recognition or machine learning model. <a id=\"variant-cam-101\"></a>\n- Counting repetitions. Action: Perform several completed pose cycles in the correct order. Application: Active tasks, combo series, motor counter. Technologies: Recognition or machine learning model. <a id=\"variant-cam-102\"></a>\n- Reproduction of movement. Action: Repeat a temporal sequence of poses taking into account the tempo. Application: Dancing, choreography, character imitation. Technologies: Recognition or machine learning model. <a id=\"variant-cam-103\"></a>\n- Retention and balance. Action: Maintain a pose within an acceptable range for a specified time. Application: “Freeze”, balancing game, world stability control. Technologies: Recognition or machine learning model. <a id=\"variant-cam-104\"></a>"},{"id":"context","title":"Context and limits","body":"Games, learning, creativity and interactive applications. Author's systematization of game rules based on proven technical capabilities. Examples are application ideas and not statements of released products."}],"relations":[],"placements":[{"catalogId":"phone-camera","id":"family-body","title":"Phone camera interactions","url":"https://gamemechanics.pro/en/mechanics/phone-camera/#family-body","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Posture, body movement and active play","description":"Body pose and motion replace buttons. In Active Arcade the player moves in front of the phone camera to interact with onscreen targets.","image":{"src":"images/mechanics/input-active-arcade-1.webp","width":720,"height":405,"crop":{"x":225,"y":60,"width":495,"height":285},"game":"Active Arcade","sourceUrl":"https://apps.apple.com/us/app/active-arcade/id1553158383?uo=4","originalUrl":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/a6/f6/47/a6f64733-077d-715b-80b4-dfef3fecf396/8e690756-92fb-4664-952a-0adc89822d2d_body-motion-gameplay-.jpg/720x1560bb.jpg","credit":"Nex","rights":"Imagery © Nex. Developer-distributed screenshot or frame; all rights reserved. Excluded from MIT and CC BY 4.0.","caption":"Active Arcade: a person’s movement participates in gameplay","alt":"Active Arcade: a person’s movement participates in gameplay","markers":[{"x":65,"y":43,"label":"The camera sees the player while the game adds scores and effects"}]},"tips":["Show the required distance, frame boundaries and clear movement space."],"examples":[{"title":"Active Arcade","url":"https://apps.apple.com/us/app/active-arcade/id1553158383?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-camera"}}