{"schemaVersion":1,"record":{"key":"mechanic/phone-magnetometer--family-10","type":"mechanic","id":"phone-magnetometer--family-10","lang":"en","title":"Combinations with other channels","summary":"Magnetic heading can be combined with tilt, touch or location. The True compass illustrates correction to geographic north.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-magnetometer--family-10/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-magnetometer--family-10.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-magnetometer--family-10.md","aliases":["Combining input channels"],"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 magnetic signal complements touch, movement, sound or image, maintaining a separate role for each channel."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-10-variants\"></a>\n\n- Touch plus direction. Action: Point the phone at the world azimuth and confirm with a touch. Application: Shot, target selection, directed dialogue, command to a squad. Limitations: The magnetometer sets a horizontal reference; touch separates intention from inspection. Equipment: Telephone without external magnet. Preparation: Easy start. Type: Compound mechanics. <a id=\"variant-m073\"></a>\n- Magnetic touch modifier. Action: Hold the magnet in the area; touches at this moment have a different meaning. Application: Alternate fire, second layer of the tool, temporary editing mode. Limitations: Check the independence of the magnetic signal from movements when touching. Equipment: Phone and external magnet. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m074\"></a>\n- Slope plus magnetic parameter. Action: By tilting the phone, set one parameter, by moving the magnet another. Application: Steering wheel and gas, aim and strength, melody and volume. Limitations: Need to compensate for changes in the orientation of the phone; the original vector background is rotated. Equipment: Phone and external magnet. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m075\"></a>\n- Action only when stationary. Action: Allow magnetic gesture only when the gyroscope and accelerometer indicate a stable position. Application: Accurate input, key confirmation, reduction of accidental activations. Limitations: This is a software condition; Motion sensors by themselves do not remove all magnetic interference. Equipment: Phone and external magnet. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m076\"></a>\n- Geoposition plus azimuth. Action: At a known geographical point, look in the required direction. Application: City quest, search for landmarks, orientation. Limitations: Geoposition is supplied separately; for geographic north, a declination correction is needed. Equipment: Phone without an external magnet. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m077\"></a>\n- Camera plus magnetic channel. Action: The camera determines an object or pose, the magnet sets an additional mode or confirmation. Application: AR artifact, physical toy with a digital effect, interactive stand. Limitations: Positioning is provided by the camera; The magnetometer does not replace visual tracking. Equipment: Phone and external magnet. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m078\"></a>\n- Input with sound and vibration feedback. Action: Find the desired sector or signal strength by sound or vibration without constantly looking at the screen. Application: Audio game, educational device, accessible interface. Limitations: Accessibility requires verification with users; This is a form of feedback, not a new sensor. Equipment: Phone and external magnet. Preparation: Needs setup. Type: Compound mechanics. <a id=\"variant-m079\"></a>\n- Voice plus magnetic gesture. Action: Say a command, and use a magnet to select the intensity or confirm execution. Application: Voice spell, musical instrument, props control. Limitations: Voice is recognized by a microphone; provide a mode in noise and without speech. Equipment: Telephone and external magnet. Preparation: Experimental. Type: Compound mechanics. <a id=\"variant-m080\"></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-10","title":"Phone magnetometer interactions","url":"https://gamemechanics.pro/en/mechanics/phone-magnetometer/#family-10","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Combining input channels","description":"Magnetic heading can be combined with tilt, touch or location. The True compass illustrates correction to geographic north.","image":{"src":"images/mechanics/sensor-physics-magnet-2.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/a9/58/b1/a958b1b9-4cea-7513-75d5-8e6283b73916/03-find-north.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 Magnetic / True compass with True selected","alt":"Physics Toolbox: a Magnetic / True compass with True selected","markers":[{"x":50,"y":38,"label":"317°: heading in the selected true-north mode"}]},"tips":["Align measurement timing and check the availability of every input channel."],"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"}}