{"schemaVersion":1,"record":{"key":"mechanic/phone-magnetometer--family-06","type":"mechanic","id":"phone-magnetometer--family-06","lang":"en","title":"Gestures with a magnet","summary":"A scenario can distinguish magnet gestures through peak sequences, duration and field-component changes. The instrument shows the input signal.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-magnetometer--family-06/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-magnetometer--family-06.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-magnetometer--family-06.md","aliases":["Magnet gestures"],"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":"The time sequence of magnet movements is recognized as a gesture with tolerances for distance and speed."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-06-variants\"></a>\n\n- Magnetic swing. Action: Swipe a magnet through a calibrated area from left to right or back. Application: Swinging a weapon, flipping, deflecting a projectile. Limitations: Direction requires learning patterns, not a single field module threshold. Equipment: Phone and external magnet. Preparation: Needs setup. Type: Input method. <a id=\"variant-m041\"></a>\n- Push and pull. Action: Distinguish between the sequences of zoom-remove and remove-zoom. Application: Push or pull an object, throw out or draw in energy. Limitations: Limit the trajectory; the starting position affects the signal pattern. Equipment: Telephone and external magnet. Preparation: Needs setup. Type: Input method. <a id=\"variant-m042\"></a>\n- Circle gesture. Action: Move the magnet in a circle in a selected plane. Application: Create a portal, mix a potion, charge a circular attack. Limitations: Requires discernible patterns; turning the magnet itself may distort the signal. Equipment: Phone and external magnet. Preparation: Experimental. Type: Input method. <a id=\"variant-m043\"></a>\n- Eight gesture. Action: Repeat two connected paths in the work area. Application: Complex spell, special move, ritual design. Limitations: This is limited gesture recognition; do not pass off as measuring an exact contour. Equipment: Telephone and external magnet. Preparation: Experimental. Type: Input method. <a id=\"variant-m044\"></a>\n- Zigzag or broken line. Action: Alternate directions of movement according to a trained pattern. Application: Lightning, cutting, connecting virtual contacts. Limitations: Too similar gestures require a simplified vocabulary. Equipment: Phone and external magnet. Preparation: Experimental. Type: Input method. <a id=\"variant-m045\"></a>\n- Wrist rotation with magnet. Action: Distinguish characteristic changes in the orientation of a magnet on a ring or holder. Application: Rotate an object, switch tool mode, rotate a virtual pen. Limitations: Hand movement and change in magnet position are mixed in one signal. Equipment: Phone and external magnet. Preparation: Experimental. Type: Input method. <a id=\"variant-m046\"></a>\n- Dictionary of user gestures. Action: Record several repetitions of gestures and match the new signal with patterns. Application: Personal spells, accessible input, secret game command. Limitations: Requires training, checking for false positives and refusing to answer confidently when in doubt. Equipment: Phone and external magnet. Preparation: Experimental. Type: Input method. <a id=\"variant-m047\"></a>\n- Gesture speed profile. Action: Distinguish similar movements by the “slow-fast-slow” pattern. Application: Quality of impact, musical articulation, manufacturing technique. Limitations: Estimation of speed is relative without a known trajectory; Temporary patterns are compared. Equipment: Phone and external magnet. Preparation: Experimental. Type: Game rule. <a id=\"variant-m048\"></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-06","title":"Phone magnetometer interactions","url":"https://gamemechanics.pro/en/mechanics/phone-magnetometer/#family-06","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Magnet gestures","description":"A scenario can distinguish magnet gestures through peak sequences, duration and field-component changes. The instrument shows the input signal.","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 recording of sharp magnetic-field changes","alt":"Physics Toolbox: a recording of sharp magnetic-field changes","markers":[{"x":44,"y":64,"label":"A field peak can supply a threshold-action input"}]},"tips":["Test gestures at several distances and separate them from accidental phone motion."],"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"}}