{"schemaVersion":1,"record":{"key":"mechanic/phone-magnetometer--family-11","type":"mechanic","id":"phone-magnetometer--family-11","lang":"en","title":"Cooperative play and roles","summary":"A cooperative design scenario can combine readings from several participants. Field recordings provide shared material for comparison and distributed tasks.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-magnetometer--family-11/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-magnetometer--family-11.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-magnetometer--family-11.md","aliases":["Shared play and roles"],"tags":["Phone magnetometer interactions","Mechanics catalog"],"sourceIds":["source-603978442e60360e"],"sources":[{"id":"source-603978442e60360e","title":"Physics Toolbox Magnetometer","url":"https://apps.apple.com/us/app/physics-toolbox-magnetometer/id1003749103?uo=4","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"Participants distribute monitoring, control and signal exchange among several prepared devices."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-11-variants\"></a>\n\n- Split controller. Action: One player holds the phone, the other controls the magnet. Application: Cooperative piloting, reactor setup, communication game. Limitations: Separate roles and limit the work area; two independent movements complicate the signal. Equipment: Several players and prepared devices. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m081\"></a>\n- Coincidence of team directions. Action: Several phones simultaneously reach specified azimuths. Application: Team ritual, synchronous defense, distributed puzzle. Limitations: Requires data exchange and synchronization; Local magnetic interference varies. Equipment: Multiple players and prepared devices. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m082\"></a>\n- Complementary directions. Action: Each player must maintain his own direction, complementary to the others. Application: Close the circle of protection, cover sectors, distribute surveillance. Limitations: The condition is checked by the application; the direction of each phone to another does not follow from this. Equipment: Several players and prepared devices. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m083\"></a>\n- General turn token. Action: Pass one magnetic object and present it to the phone of the next player. Application: Move in a board game, physical voting rights, relay race. Restrictions: The right to move is supported by the rules and the application; the magnetic token can be copied. Equipment: Several players and prepared devices. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m084\"></a>\n- Drag the summary field. Action: Two players move magnets on guides, trying to bring the common signal into their area. Application: Tug of war, balance, struggle for adjustment. Limitations: Only the total field is evaluated; The individual contribution of each player is not measured. Equipment: Multiple players and prepared devices. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m085\"></a>\n- Discovery relay. Action: Bring one item to several phones in the right order. Application: Physical relay race, artifact delivery, joint route. Limitations: The magnet itself does not transfer the digital state; the order is verified over the network or on one device. Equipment: Multiple players and prepared devices. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m086\"></a>\n- Hidden input of the second player. Action: The player with the magnet makes a permitted gesture outside the screen owner's field of view. Application: Asymmetrical riddle, trick, search for saboteur. Limitations: The phone must recognize a limited vocabulary of actions; there is no reading of thoughts or personality here. Equipment: Several players and prepared devices. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m087\"></a>\n- Controlled magnetic intervention. Action: One player tries to hold the target on a signal, the other changes the field with the prepared props. Application: Asymmetrical combat, sabotage of the device, game to regain control. Limitations: Intervention is the rule; next to a magnet, a compass cannot be considered a reliable world reference. Equipment: Several players and prepared devices. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m088\"></a>"},{"id":"context","title":"Context and limits","body":"Author's working classification for designing games and interactions. Options can overlap and combine; the list is not a generally accepted standard or proven exhaustive list. Application examples are conditional unless a specific verifiable observation is indicated nearby. Sources support individual techniques and technical limitations."}],"relations":[],"placements":[{"catalogId":"phone-magnetometer","id":"family-11","title":"Phone magnetometer interactions","url":"https://gamemechanics.pro/en/mechanics/phone-magnetometer/#family-11","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Shared play and roles","description":"A cooperative design scenario can combine readings from several participants. Field recordings provide shared material for comparison and distributed tasks.","image":{"src":"images/mechanics/sensor-physics-magnet-3.webp","width":665,"height":1440,"crop":{"x":51,"y":323,"width":563,"height":1034},"game":"Physics Toolbox Magnetometer","sourceUrl":"https://apps.apple.com/us/app/physics-toolbox-magnetometer/id1003749103?uo=4","originalUrl":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/76/23/58/7623583b-a84f-fd15-b138-fa78cf800baa/04-record-lab-data.png/720x1560bb.jpg","credit":"Chrystian Vieyra","rights":"© Chrystian Vieyra. Developer-distributed App Store screenshot. All rights reserved; excluded from MIT and CC BY 4.0.","caption":"Physics Toolbox: a field recording as material for a shared task","alt":"Physics Toolbox: a field recording as material for a shared task","markers":[{"x":44,"y":64,"label":"A field peak can supply a threshold-action input"}]},"tips":["Align participants’ measurement timing, axes and calibration."],"examples":[{"title":"Physics Toolbox Magnetometer","url":"https://apps.apple.com/us/app/physics-toolbox-magnetometer/id1003749103?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-magnetometer"}}