Difference between revisions of "Focus Loci"

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[[Category:Patterns]]
 
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[[Category:Interface Patterns]]
 
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''Game elements that allow players to perform actions in game worlds.''
 
''Game elements that allow players to perform actions in game worlds.''
  
This pattern is a still a stub.
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Games that have game worlds need to have ways of letting players perform actions within these worlds. [[Focus Loci]] are the game elements that provide such actions and let players chose how to use these in order to achieve whatever types of goals they do have.
 
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Focus Loci, the locations of thefocus, are the game elements through which players can affect the game state. The most obvious Focus Loci are the game elements that can be moved by the player, and the actions they provide are the possibility of moving them.
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=== Examples ===
 
=== Examples ===
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Each piece in [[Chess]] acts as a [[Focus Loci]] for the players by providing a number of potential actions. The stones used in [[Go]] are only [[Focus Loci]] when they are being placed on the board, since players cannot perform any other actions through them later.
  
Example: Each piece in Chess acts as a Focus Loci for the players by providing a number of potential actions.
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Avatars are players' [[Focus Loci]] in [[:Category:FPS Games|First-Person Shooters]] such as [[America's Army]], [[Dead Space]], and the various installments of the [[Quake series|Quake]], [[Crysis series|Crysis]],  and [[Uncharted series]].
 
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Example: The stones used in Go are only Focus Loci when they are being placed on the board, since players cannot perform any other actions through them later.
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Example: The Avatar that a player controls in a first-person shooter is the Focus Loci they have in the game.
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Example: Various types of mouse cursors used in real-time strategy games and Sims games are Focus Loci that allow players to move between units and characters, which in their turn are also Focus Loci.
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The units under players command in [[Warhammer 40K]], the [[Starcraft series]], and the [[Hearts of Iron series]] are all examples of [[Focus Loci]] for players.
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The units under players command in [[Warhammer 40K]], the [[Starcraft series]], and the [[Hearts of Iron series]] are all examples of [[Focus Loci]] for players. In these games, as in the [[Sims series]], players are also equipped with a cursor that not only lets them select with units (or Sims) to control but also lets them directly interface with some other parts of the game environment.
  
 
== Using the pattern ==
 
== Using the pattern ==
[[Focus Loci]] are ways to locate players' abilities to affect gameplay in [[Game Worlds]]. The four main options for this is [[Avatars]], [[Characters]], [[Units]], and [[God Fingers]]. The first three can maintain a [[Diegetic Consistency]], but only as long as the actions they provide are restricted by the [[Alternative Realities]] of the games in question. While [[Characters]] may be unnecessary in [[Game Worlds]] that have  consistent representations, they can provide [[Focus Loci]] in the mainly implied [[Game Worlds]] of [[:Category:Tabletop Roleplaying Games|Tabletop Roleplaying Games]] and provide support for actions that are smaller than the granularity of explicit action presentation in [[Game World]].
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[[Focus Loci]] are ways to locate players' abilities to affect gameplay in [[Game Worlds]]. The four main options for this are [[Avatars]], [[Characters]], [[Units]], and [[God Fingers]] (primarily [[Player Characters]] in the case of [[Characters]]). The first three can maintain a [[Diegetic Consistency]], but only as long as the actions they provide are restricted by the [[Alternative Realities]] of the games in question. While [[Characters]] may be unnecessary in [[Game Worlds]] that have  consistent representations, they can provide [[Focus Loci]] in the mainly implied [[Game Worlds]] of [[:Category:Tabletop Roleplaying Games|Tabletop Roleplaying Games]] and provide support for actions that are smaller than the granularity of explicit action presentation in [[Game Worlds]].
  
[[Units]] naturally provide players with several [[Focus Loci]] but this can also be supported by allowing players to switch between different [[Avatars]] or [[Characters]]. [[God Fingers]] are quite often combined with these other types of [[Focus Loci]] in these situations since [[God Fingers]] provide a way easily switching between the other [[Focus Loci]]; they may also allow actions otherwise not possible (e.g. activating production of [[Units]] in buildings in [[:Category:Real-Time Strategy Games|Real-Time Strategy Games]] such as the [[Starcraft series]]). Such use of several [[Focus Loci]] can  allows single players to control [[Parties]] or [[Teams]] at high levels of granularity but requires [[Attention Swapping]]. This type of [[Attention Swapping]] can be removed by allowing players to activate actions for several [[Focus Loci]] at once - something present in both [[:Category:Real-Time Strategy Games|Real-Time Strategy Games]] such the [[Starcraft series]] and other computer-based [[:Category:Strategy Games|Strategy Games]] such as the [[Heart of Iron series]]. This solution is however unlikely to remove [[Attention Swapping]] since games with this type of gameplay are likely to create situations where the various [[Focus Loci]] cannot effectively be used by making them all do the same thing.
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[[Units]] naturally provide players with several [[Focus Loci]] but this can also be supported by allowing players to switch between different [[Avatars]] or [[Characters]]. [[God Fingers]] are quite often combined with these other types of [[Focus Loci]] in these situations since [[God Fingers]] provide a way easily switching between the other [[Focus Loci]]; they may also allow actions otherwise not possible (e.g. activating production of [[Units]] in buildings in [[:Category:Real-Time Strategy Games|Real-Time Strategy Games]] such as the [[Starcraft series]]). Such use of several [[Focus Loci]] can  allows single players to control [[Parties]] or [[Teams]] at high levels of granularity but requires [[Attention Swapping]]. This type of [[Attention Swapping]] can be removed by allowing players to activate actions for several [[Focus Loci]] at once - something present in both [[:Category:Real-Time Strategy Games|Real-Time Strategy Games]] such the [[Starcraft series]] and other computer-based [[:Category:Strategy Games|Strategy Games]] such as the [[Hearts of Iron series]]. This solution is however unlikely to remove [[Attention Swapping]] completely from games since those that have this type of gameplay are likely to create situations where the various [[Focus Loci]] cannot effectively be used by making them all perform the same actions.
  
As the swapping between Units is often done by explicit actions performed from a Third-Person View, this Third-Person View can actually be seen as a form of Focus Loci. God's Fingers are most often used to allow players to have Game State Overview and to let them do Attention Swapping between other Focus Loci but can be used to provide the god-like actions found in god games.
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Although not as common as the four options mention above, [[Cards]] can, especially in [[Collectible Card Games]], be [[Focus Loci]] either when being played or by being in play and giving a player [[New Abilities]]. This of course assumes that [[Game Worlds]] that can be affected are at least implied, but examples of games that do this include [[Magic: The Gathering]], [[Dominion]], and [[Race for the Galaxy]]. [[Tiles]] offer the same design possibilities as [[Cards]] in this respect, but are also quite often used to create the actual [[Game Worlds]]. [[Bookkeeping Tokens]] whose presences indicate that a player has [[New Abilities]] are another form of more unusual [[Focus Loci]]. [[Dice]] are seldom [[Focus Loci]] except in pure dice games, since using them is not usually an activity affecting the game directly but rather a way of determining how actions are to be performed. [[Installations]] can become [[Focus Loci]] even if they are often found in games with [[Avatars]] and [[Units]] and play a lesser role than these. This most occurs in [[:Category:Real-Time Strategy Games|Real-Time Strategy Games]].
  
Although not as common as the three main options, Cards can, especially in collectable card games, be Focus Loci either when being played or by being in play and giving a player New Abilities.
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While different [[Focus Loci]] can of course affect [[Game Worlds]] is vastly different ways, one way that most [[Focus Loci]] can affect [[Game Worlds]] is to give [[Area Control]] by being present in specific part of them ([[God Fingers]] are the typical exception). In contrast, [[Line of Sight]] is a general way in which [[Focus Loci]] powers of affecting [[Game Worlds]] can be changed. [[Clickability]] is a way of changing how affecting [[Game Worlds]] through [[Focus Loci]] is perceived and can be applied to most [[Focus Loci]] but works most easily with [[God Fingers]].  
Book-Keeping Tokens whose presences indicate that a player has New Abilities are another form of more unusual Focus Loci. Dice are seldom Focus Loci except in pure dice games, since using them is not usually an activity affecting the game directly but rather determining how actions are to be performed.
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The choice of Focus Loci and the actions they support dictate which game elements players have Indirect Control over.
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[[Focus Loci]] can change through the [[Abstract Player Construct Development]] of being giving [[New Abilities]]. Although these are typically giving as immaterial [[Rewards]], it is worth mentioning that they sometimes are represented through tangible [[Cards]], [[Tiles]], or [[Bookkeeping Tokens]].
  
=== Can Be Instantiated By ===
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Making [[Focus Loci]] be [[Always Vulnerable]] is a simple way to focus players' attention more on these loci as well as their immediate surroundings.
[[Agents]],
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[[Bookkeeping Tokens]],
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[[Player Characters]],
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=== Can Be Modulated By ===
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[[Clickability]],
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[[Game State Indicators]],
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[[Geospatial Game Widgets]],
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[[Line of Sight]],
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[[Mini-maps]],
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[[New Abilities]]
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[[Focus Loci]]] can affect the Game World usually by affecting themselves, other game elements, or the environment in their immediate vicinity, for example, to gain Area Control in the latter case.  
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=== Can Modulate ===
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[[Area Control]]
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=== Diegetic Aspects ===
 
=== Diegetic Aspects ===
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The diegetic aspects of [[Focus Loci]] depend primarily on what type of [[Focus Loci]] they are, so refer to the patterns that instantiate [[Focus Loci]] for more details.
  
 
=== Interface Aspects ===
 
=== Interface Aspects ===
[[Focus Loci]] is an [[:Category:Interface Patterns|Interface Pattern]].
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[[Focus Loci]] is an [[:Category:Interface Patterns|Interface Pattern]]. The various [[Focus Loci]] do have relations to what views players are given in [[:Category:Computer Games|Computer-Based Games]], e.g. [[God Fingers]] not being possible to combine with [[First-Person Views]]. For this reason, considering various [[Focus Loci]] should be done in conjunction with [[First-Person Views|First-Person]], [[Third-Person Views|Third-Person]], and [[God Views]]. A special note in relation to this is that [[Third-Person Views]] can be locked to the current [[Focus Loci]] in games with [[God Views]] and multiple possible [[Focus Loci]], this to support players being conscious of which [[Focus Loci]] is being used.
 
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Games allowing several different [[Focus Loci]] to be selected from
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and Status Indicators to show where the Focus Loci are in the Game World
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[[Geospatial Game Widgets]] are [[Game State Indicators]] that can be used to provide players with abstract information pertaining to their [[Focus Loci]] (e.g. [[Health]] or presenting their [[Handles|Handle]]) but can also be used to show which [[Focus Loci]] is or are selected when several are available. One example of this is the signature green icon above selected Sims in the [[Sims series]]. [[Mini-maps]] in contrast can be used to show where players' [[Focus Loci]] are located in the [[Game Worlds]].
  
 
=== Narrative Aspects ===
 
=== Narrative Aspects ===
The specific choice of [[Focus Loci]] used in a game can affect which type of [[Narration Structures]] are suitable. For example, [[Detective Structures]] is difficult to use with [[God Fingers]] or [[Units]] since they allow players information from a non-diegetic perspective or from several different diegetic individuals.
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The specific choice of [[Focus Loci]] used in a game can affect which types of [[Narration Structures]] are suitable. For example, [[Detective Structures]] is difficult to use with [[God Fingers]] or [[Units]] since they allow players information from a non-diegetic perspective or from several different diegetic individuals. In contrast, the type of [[Focus Loci]] chosen can affect how the specifics of [[Predetermined Story Structures]] can be designed.
  
 
== Consequences ==
 
== Consequences ==
[[Focus Loci]] are game elements that provide methods for players to affect [[Game Worlds]], and are in many cases diegetically present in the [[Game Worlds]] themselves. These [[Focus Loci]] can support [[Engrossment]] in various ways depending on their specific characteristics, but very often [[Spatial Engrossment]] since they make players focus to specific parts of [[Game Worlds]] at a time and quite likely [[Movement]] or relations between parts of [[Game Worlds]]. They also create natural elements within games for players to [[Identification|Identify]] their gameplay experiences and efforts with.  
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[[Focus Loci]] are game elements that provide methods for players to affect [[Game Worlds]], and are in many cases diegetically present in the [[Game Worlds]] themselves. These [[Focus Loci]] can support [[Engrossment]] in various ways depending on their specific characteristics, but very often [[Spatial Engrossment]] since they make players focus to specific parts of [[Game Worlds]] at a time and quite likely [[Movement]] or relations between parts of [[Game Worlds]]. They also create natural elements within games for players to [[Identification|Identify]] their gameplay experiences and efforts with, and when present in the [[Game Worlds]] represent [[Agents]] in these.
  
Providing multiple [[Focus Loci]] can support [[Attention Swapping]] but may also create it by the individual [[Focus Loci]] being [[Attention Demanding]]. This may also affects [[Risk/Reward]] trade-offs that have to be made when initiating [[Extended Actions]].
+
Providing multiple [[Focus Loci]] can support [[Attention Swapping]] but may also create it by the individual [[Focus Loci]] having [[Attention Demanding Gameplay]]. This may also affects [[Risk/Reward]] trade-offs that have to be made when initiating [[Extended Actions]].
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The choice of [[Focus Loci]] in games dictate which game elements players have direct control over and which they have [[Indirect Control]] over.
  
 
== Relations ==
 
== Relations ==
 
=== Can Instantiate ===
 
=== Can Instantiate ===
[[Attention Demanding]],  
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[[Agents]],
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[[Attention Demanding Gameplay]],  
 
[[Attention Swapping]],  
 
[[Attention Swapping]],  
 
[[Engrossment]],  
 
[[Engrossment]],  
 
[[Identification]],  
 
[[Identification]],  
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[[Indirect Control]],
 
[[Spatial Engrossment]]
 
[[Spatial Engrossment]]
  
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[[Attention Swapping]],  
 
[[Attention Swapping]],  
 
[[Game Worlds]],  
 
[[Game Worlds]],  
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[[Narration Structures]],
 
[[Parties]],  
 
[[Parties]],  
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[[Predetermined Story Structures]],
 
[[Teams]]
 
[[Teams]]
  
 
=== Can Be Instantiated By ===
 
=== Can Be Instantiated By ===
[[Agents]],
 
 
[[Avatars]],  
 
[[Avatars]],  
 
[[Bookkeeping Tokens]],  
 
[[Bookkeeping Tokens]],  
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[[Cards]],
 
[[Characters]],  
 
[[Characters]],  
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[[Dice]],
 
[[God Fingers]],  
 
[[God Fingers]],  
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[[Installations]],
 
[[Player Characters]],  
 
[[Player Characters]],  
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[[Tiles]],
 
[[Units]]
 
[[Units]]
  
 
=== Can Be Modulated By ===
 
=== Can Be Modulated By ===
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[[Abstract Player Construct Development]],
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[[Always Vulnerable]],
 
[[Clickability]],  
 
[[Clickability]],  
 
[[Game State Indicators]],  
 
[[Game State Indicators]],  
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[[Line of Sight]],  
 
[[Line of Sight]],  
 
[[Mini-maps]],  
 
[[Mini-maps]],  
[[New Abilities]]
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[[New Abilities]]
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[[Third-Person Views]] in games with [[God Views]]
  
 
=== Possible Closure Effects ===
 
=== Possible Closure Effects ===

Latest revision as of 14:33, 19 January 2018

Game elements that allow players to perform actions in game worlds.

Games that have game worlds need to have ways of letting players perform actions within these worlds. Focus Loci are the game elements that provide such actions and let players chose how to use these in order to achieve whatever types of goals they do have.

Examples

Each piece in Chess acts as a Focus Loci for the players by providing a number of potential actions. The stones used in Go are only Focus Loci when they are being placed on the board, since players cannot perform any other actions through them later.

Avatars are players' Focus Loci in First-Person Shooters such as America's Army, Dead Space, and the various installments of the Quake, Crysis, and Uncharted series.

The units under players command in Warhammer 40K, the Starcraft series, and the Hearts of Iron series are all examples of Focus Loci for players. In these games, as in the Sims series, players are also equipped with a cursor that not only lets them select with units (or Sims) to control but also lets them directly interface with some other parts of the game environment.

Using the pattern

Focus Loci are ways to locate players' abilities to affect gameplay in Game Worlds. The four main options for this are Avatars, Characters, Units, and God Fingers (primarily Player Characters in the case of Characters). The first three can maintain a Diegetic Consistency, but only as long as the actions they provide are restricted by the Alternative Realities of the games in question. While Characters may be unnecessary in Game Worlds that have consistent representations, they can provide Focus Loci in the mainly implied Game Worlds of Tabletop Roleplaying Games and provide support for actions that are smaller than the granularity of explicit action presentation in Game Worlds.

Units naturally provide players with several Focus Loci but this can also be supported by allowing players to switch between different Avatars or Characters. God Fingers are quite often combined with these other types of Focus Loci in these situations since God Fingers provide a way easily switching between the other Focus Loci; they may also allow actions otherwise not possible (e.g. activating production of Units in buildings in Real-Time Strategy Games such as the Starcraft series). Such use of several Focus Loci can allows single players to control Parties or Teams at high levels of granularity but requires Attention Swapping. This type of Attention Swapping can be removed by allowing players to activate actions for several Focus Loci at once - something present in both Real-Time Strategy Games such the Starcraft series and other computer-based Strategy Games such as the Hearts of Iron series. This solution is however unlikely to remove Attention Swapping completely from games since those that have this type of gameplay are likely to create situations where the various Focus Loci cannot effectively be used by making them all perform the same actions.

Although not as common as the four options mention above, Cards can, especially in Collectible Card Games, be Focus Loci either when being played or by being in play and giving a player New Abilities. This of course assumes that Game Worlds that can be affected are at least implied, but examples of games that do this include Magic: The Gathering, Dominion, and Race for the Galaxy. Tiles offer the same design possibilities as Cards in this respect, but are also quite often used to create the actual Game Worlds. Bookkeeping Tokens whose presences indicate that a player has New Abilities are another form of more unusual Focus Loci. Dice are seldom Focus Loci except in pure dice games, since using them is not usually an activity affecting the game directly but rather a way of determining how actions are to be performed. Installations can become Focus Loci even if they are often found in games with Avatars and Units and play a lesser role than these. This most occurs in Real-Time Strategy Games.

While different Focus Loci can of course affect Game Worlds is vastly different ways, one way that most Focus Loci can affect Game Worlds is to give Area Control by being present in specific part of them (God Fingers are the typical exception). In contrast, Line of Sight is a general way in which Focus Loci powers of affecting Game Worlds can be changed. Clickability is a way of changing how affecting Game Worlds through Focus Loci is perceived and can be applied to most Focus Loci but works most easily with God Fingers.

Focus Loci can change through the Abstract Player Construct Development of being giving New Abilities. Although these are typically giving as immaterial Rewards, it is worth mentioning that they sometimes are represented through tangible Cards, Tiles, or Bookkeeping Tokens.

Making Focus Loci be Always Vulnerable is a simple way to focus players' attention more on these loci as well as their immediate surroundings.

Diegetic Aspects

The diegetic aspects of Focus Loci depend primarily on what type of Focus Loci they are, so refer to the patterns that instantiate Focus Loci for more details.

Interface Aspects

Focus Loci is an Interface Pattern. The various Focus Loci do have relations to what views players are given in Computer-Based Games, e.g. God Fingers not being possible to combine with First-Person Views. For this reason, considering various Focus Loci should be done in conjunction with First-Person, Third-Person, and God Views. A special note in relation to this is that Third-Person Views can be locked to the current Focus Loci in games with God Views and multiple possible Focus Loci, this to support players being conscious of which Focus Loci is being used.

Geospatial Game Widgets are Game State Indicators that can be used to provide players with abstract information pertaining to their Focus Loci (e.g. Health or presenting their Handle) but can also be used to show which Focus Loci is or are selected when several are available. One example of this is the signature green icon above selected Sims in the Sims series. Mini-maps in contrast can be used to show where players' Focus Loci are located in the Game Worlds.

Narrative Aspects

The specific choice of Focus Loci used in a game can affect which types of Narration Structures are suitable. For example, Detective Structures is difficult to use with God Fingers or Units since they allow players information from a non-diegetic perspective or from several different diegetic individuals. In contrast, the type of Focus Loci chosen can affect how the specifics of Predetermined Story Structures can be designed.

Consequences

Focus Loci are game elements that provide methods for players to affect Game Worlds, and are in many cases diegetically present in the Game Worlds themselves. These Focus Loci can support Engrossment in various ways depending on their specific characteristics, but very often Spatial Engrossment since they make players focus to specific parts of Game Worlds at a time and quite likely Movement or relations between parts of Game Worlds. They also create natural elements within games for players to Identify their gameplay experiences and efforts with, and when present in the Game Worlds represent Agents in these.

Providing multiple Focus Loci can support Attention Swapping but may also create it by the individual Focus Loci having Attention Demanding Gameplay. This may also affects Risk/Reward trade-offs that have to be made when initiating Extended Actions.

The choice of Focus Loci in games dictate which game elements players have direct control over and which they have Indirect Control over.

Relations

Can Instantiate

Agents, Attention Demanding Gameplay, Attention Swapping, Engrossment, Identification, Indirect Control, Spatial Engrossment

Can Modulate

Area Control, Attention Swapping, Game Worlds, Narration Structures, Parties, Predetermined Story Structures, Teams

Can Be Instantiated By

Avatars, Bookkeeping Tokens, Cards, Characters, Dice, God Fingers, Installations, Player Characters, Tiles, Units

Can Be Modulated By

Abstract Player Construct Development, Always Vulnerable, Clickability, Game State Indicators, Geospatial Game Widgets, Line of Sight, Mini-maps, New Abilities

Third-Person Views in games with God Views

Possible Closure Effects

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Potentially Conflicting With

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History

An updated version of the pattern Focus Loci that was part of the original collection in the book Patterns in Game Design[1].

References

  1. Björk, S. & Holopainen, J. (2004) Patterns in Game Design. Charles River Media. ISBN1-58450-354-8.

Acknowledgements

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