{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.gravity-gun","code":"thing-q379481","url":"https://ver.cy/models/thing/q379481/","name":"gravity gun","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Information and virtual systems","entryKind":"thing","plane":"INF","domain":["INF.MED"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A gravity gun is a fictional device that manipulates objects at a distance through purported control of gravity, notably represented by the Zero Point Energy Field Manipulator in Valve's Half-Life 2.","purpose":"Enable an agent to recognise a fictional gravity gun, distinguish its depicted capabilities from its playable implementation, and determine which interactions a particular version permits.","scope":{"in":["The fictional device's identity and names within an identified work or continuity","Depicted gravity or force manipulation and the distinction between fictional explanation and implemented behaviour","Acquiring, holding, moving, releasing and propelling eligible targets","Restrictions, exceptional capability states and interactions with the environment","Evidence linking each capability to a particular depiction or implementation"],"out":["Real gravitational physics and engineering feasibility","Complete models of the games, films or other works containing the device","General firearm mechanics unrelated to gravity-based manipulation","The identities and full capabilities of characters operating the device","Physical merchandise, replicas and individual collectible items","Complete models of manipulated objects and their material properties"],"boundaries":[]},"distinguishingFeatures":["A qualifying depiction presents a device whose attributed function includes manipulating targets through gravity or a related fictional force; the name alone is insufficient evidence.","Determine whether the device manipulates existing environmental objects, emits its own projectiles, or does both; these behaviours distinguish materially different gravity-gun interpretations.","Identify an external implement or explicitly represented device, distinguishing it from an operator's unaided telekinetic ability.","Test whether apparent lifting or attraction is attributed to this device rather than ordinary magnetism, a grappling tether or an unrelated editing tool.","Require a work, continuity or implementation reference before treating two similarly named devices as the same fictional design."],"structure":{"bundles":[{"id":"fictional-device-identity","name":"Fictional device identity","description":"Establishes which gravity-gun concept the entry represents and how its depictions relate.","layers":[{"id":"name-and-referent","name":"Name and referent","description":"Resolves the label against its fictional context.","findings":[{"id":"gravity-gun-identity-anchor","name":"Gravity-gun identity anchor","description":"Record the evidence connecting the registry term to a fictional device, keeping informal labels distinct from source-established names.","questions":[{"text":"Does this registry entry denote a specific franchise's device or a class of fictional gravity-manipulation weapons?","id":"gravity-gun-identity-anchor-q01","kind":"boundary"},{"text":"Which source establishes the device's name and the work or continuity in which it appears?","id":"gravity-gun-identity-anchor-q02","kind":"provenance"}]}]},{"id":"design-and-depiction","name":"Design and depiction","description":"Distinguishes a fictional design from its instances and representations.","findings":[{"id":"depiction-identity-continuity","name":"Identity across depictions","description":"Relate individual appearances, adaptations and implementations without assuming that a shared appearance guarantees shared capabilities.","questions":[{"text":"Which depicted devices are instances of the same design, and which are adaptations or unrelated namesakes?","id":"depiction-identity-continuity-q01","kind":"boundary"},{"text":"What evidence supports carrying a capability from one appearance into another?","id":"depiction-identity-continuity-q02","kind":"provenance"}]}]}]},{"id":"force-and-target-coupling","name":"Force and target coupling","description":"Captures how the device is said to act on objects and which objects it can affect.","layers":[{"id":"attributed-force","name":"Attributed force","description":"Separates fictional explanation from demonstrated manipulation.","findings":[{"id":"mechanism-versus-effect","name":"Mechanism versus effect","description":"Record claims about gravity separately from demonstrated attraction, suspension or repulsion.","questions":[{"text":"Does the source explicitly attribute the device's operation to gravity, or is that interpretation inferred from its name and effects?","id":"mechanism-versus-effect-q01","kind":"definition"},{"text":"Which effects are demonstrated, and which exist only in dialogue, descriptive text or promotional material?","id":"mechanism-versus-effect-q02","kind":"provenance"}]}]},{"id":"eligible-targets","name":"Eligible targets","description":"Defines operation-specific coupling to environmental objects and other entities.","findings":[{"id":"target-selection-rules","name":"Target selection rules","description":"Record eligibility separately for attraction, holding and propulsion, including anchored objects and living targets where relevant.","questions":[{"text":"Which target properties permit or prevent each operation, and are the restrictions explained in fiction or imposed by the implementation?","id":"target-selection-rules-q01","kind":"boundary"},{"text":"Can a target be repelled without being holdable, and what observed cases establish that distinction?","id":"target-selection-rules-q02","kind":"provenance"}]}]}]},{"id":"object-manipulation-cycle","name":"Object manipulation cycle","description":"Models the sequence from selecting an object to holding, releasing or launching it.","layers":[{"id":"acquisition-and-holding","name":"Acquisition and holding","description":"Describes how an eligible target enters and remains under control.","findings":[{"id":"controlled-object-state","name":"Controlled object state","description":"Record acquisition conditions, held position and the events that interrupt control.","questions":[{"text":"What aim, distance, visibility and availability conditions must hold before the device acquires a target?","id":"controlled-object-state-q01","kind":"action"},{"text":"How are holding distance, target orientation and loss of control determined when the operator moves or an obstruction intervenes?","id":"controlled-object-state-q02","kind":"measurement"}]}]},{"id":"release-and-propulsion","name":"Release and propulsion","description":"Distinguishes ending control from actively imparting motion.","findings":[{"id":"release-versus-launch","name":"Release versus launch","description":"Represent dropping, throwing and repelling as separate operations when the depiction supports them.","questions":[{"text":"Which actions simply end suspension, and which actively propel a held or unheld target?","id":"release-versus-launch-q01","kind":"definition"},{"text":"What evidence establishes launch direction, speed or impulse, and how do these depend on the target or device mode?","id":"release-versus-launch-q02","kind":"measurement"}]}]}]},{"id":"capability-limits-and-consequences","name":"Capability limits and consequences","description":"Relates operational restrictions and changing modes to environmental outcomes.","layers":[{"id":"limits-and-mode-changes","name":"Limits and mode changes","description":"Captures capacity, readiness and conditional changes to the interaction rules.","findings":[{"id":"mode-dependent-capability","name":"Mode-dependent capability","description":"Record only evidenced resource constraints and capability modifiers, with their activation and expiry conditions.","questions":[{"text":"What mass, size, range, simultaneous-target or timing limits are established for each operation?","id":"mode-dependent-capability-q01","kind":"measurement"},{"text":"If an enhanced or restricted state exists, what triggers it and exactly which target or operation rules change?","id":"mode-dependent-capability-q02","kind":"action"}]}]},{"id":"environmental-outcomes","name":"Environmental outcomes","description":"Connects manipulation to collisions, object changes and task outcomes.","findings":[{"id":"manipulated-object-consequences","name":"Manipulated-object consequences","description":"Distinguish effects caused directly by the device from effects caused by a moving object's collision or intrinsic properties.","questions":[{"text":"Does an observed impact result from a direct device effect, a propelled object's collision or a property such as the object's explosiveness?","id":"manipulated-object-consequences-q01","kind":"boundary"},{"text":"Which evidenced manipulation sequences can clear an obstruction, place a puzzle object or provide a temporary barrier in this implementation?","id":"manipulated-object-consequences-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of gravity gun this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of gravity gun this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of gravity gun this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of gravity gun this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of gravity gun this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe the gravity gun as a fictional device and its role in games and media.","Distinguish fictional gravity manipulation from real physics."],"mustNot":["Present the device as real or buildable.","Distribute game content in breach of copyright.","Market products as real gravity guns to deceive buyers."],"requiresHuman":["Publishing fan works that use protected game assets."]},"ethics":{"considerations":["Fiction about science shapes public understanding of physics.","Creators' rights in game designs deserve respect."],"affectedParties":["Players and fans","Game creators"]},"owners":{"steward":"The rights holder of the game in which it appears.","roles":[],"masterSystems":[]},"relations":[{"target":"Q124980912","type":"parent","note":"registry parent class"},{"target":"Q15720870","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.gravity-gun","Wikidata: Q379481 (https://www.wikidata.org/wiki/Q379481)"]},"properties":{"applicability":"not-applicable","items":["Fictional identity anchor: Depicting work, continuity, named design and supporting reference","Attributed operating mechanism: Gravity manipulation; other fictional force; explicitly unexplained; unresolved","Supported manipulation operations: Acquire; attract; hold; reposition; release; repel; launch; other evidenced operation","Target eligibility: Operation-specific rules over target type, mobility, attachment, living status and explicit exceptions","Effective interaction distance: Distance per operation in documented world units or metres where a justified conversion exists; otherwise unknown","Manipulation capacity: Documented mass, size or target-count limits with units and version context; otherwise unknown","Operational mode: Source-defined mode, readiness, held-target condition and temporary capability modifiers","Capability evidence context: Claim linked to a scene, passage, official description or reproducible implementation observation"]},"recognition":{"applicability":"optional","items":["In its best-known game, a bulky handheld device with prongs at the front that lifts and launches objects."]},"capabilities":{"applicability":"required","items":["Identify the relevant fictional design and version from a name, depiction or observed interaction.","Check whether a specified target supports acquisition, holding or propulsion under the current rules.","Plan a permitted sequence for moving an object, clearing a route or interacting with a puzzle.","Assess depicted or simulated consequences of releasing or launching a held object.","Compare capability changes across modes, adaptations and implementations.","Flag unsupported capability claims and record unresolved exceptions."]},"hazards":{"applicability":"required","items":["Confusion between fiction and real physics.","Fraudulent products sold as real devices."]},"interfaces":{"applicability":"not-applicable","items":[]},"context":{"applicability":"required","items":["A gravity gun appears in fictional game worlds as a device for manipulating objects at a distance.","Its gameplay uses can include moving obstacles, solving spatial puzzles and interacting with opponents.","Permitted targets, reach and object behavior depend on the particular game's implementation."]}},"sources":[{"title":"Wikidata item Q379481: gravity gun","url":"https://www.wikidata.org/wiki/Q379481","note":"identity and sense of the item"},{"title":"Wikipedia: Gravity Gun","url":"https://en.wikipedia.org/wiki/Gravity_Gun","note":"general description of the item"}],"openQuestions":["Does vr.tr.gravity-gun specifically identify the Half-Life device, another named fictional device or the general fictional category?","Which primary depictions and implementation versions should establish the initial capability baseline?","Which apparent physical limits are documented rules, reproducible observations or scene-specific exceptions?","Are changes in target eligibility separate device designs, temporary modes or differences between adaptations?","Does an existing Vercy world model already cover the resolved concept and therefore provide the authoritative model to link?"],"resources":{"spec":"/models/things/publications/thing-q379481/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q379481/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T10:05:09Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"not-applicable","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:30+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane INF: no invented physical properties.","interaction.interfaces":"No technical standard or official classification specifically governs the capabilities of this fictional device category."},"score":1.0}}