Difference between revisions of "Extended Actions"

Revision as of 20:34, 17 February 2011

Actions that take so long to complete that they require players to miss opportunities to perform other actions in order to complete them.

Not all actions in games take place immediately, and some require that players continue to perform them for a period of time before taking effect. Such actions are Extended Actions and require players to make choices between completing them and abandoning them in order to start other actions. If they cannot be interrupted, they do not even let player abandon them in favor of other actions, and the player must commit fully to them.

Examples

The existence of Extended Actions are easily notice in turn-based games since the game system lets players view the state every turn. One example can be found in the Europa Universalis series, where requires players to commit their armies for up to years when each turn is a day to win siege.

Extended Actions are however also quite common in real-time games. Buildings in the Age of Empires series let players build units, but the production of these take time, and while they are being produced no new production can start. Capturing spawn points in the Battlefield series requires one or several players to dominate the point for an extended continuous period of time. The activating of machinery, the helping of other survivors hanging from ledges, and the healing of oneself or others are all examples of Extended Actions in the Left 4 Dead series. Taking photographs to complete certain mission goals in America's Army requires that the player performs an action continuously for a certain period of time, is not able to check the surroundings freely, and risk being killed.

All Live Action Roleplaying Games include Extended Actions since they include everyday actions such as walking, talking, and eating that take seconds or minutes to perform.

Using the pattern

Extended Actions can quite easily be created from any action by requiring that its effects do not take place instantaneously but rather require players to continue performing them for some while. Time Limits can be used to set a fixed amount of time needed but another option is to vary the effect by how long time a player has performed the actions for through the use of Investments - here Geometric Progression can be used to provide increased Value of Effort while Arithmetic Progression can lessen Risk/Reward associated with starting the action. When created through Investments, this may both be due to them tying up the possible actions available to players and due to depleting Resources. Real-Time Games can in principle not avoid supporting Extended Actions - games typically can handle input much faster than it take to perform simple actions such as moving, thinking, or aiming . The reason for adding Extended Actions to a game is typically to add Risk/Reward or Tension to a game but can also be a way to limit Freedom of Choice if it is perceived that there is too much present. If the time set is long enough this may lead to Encouraged Return Visits since players are unlikely to have one play session but rather two (or more) to see the action fulfilled.

Once the action is started, the Extended Actions may either be possible to stop as examples of Interruptible Actions, or be unstoppable by the players who initiated the actions as examples of Helplessness. Irrespectively, they may start having effects immediately, have increasingly stronger or weaker consequences the longer they are performed, or may require an initial threshold to be reached before starting to have effect at all. In the latter case, the completion of them entails Hovering Closures and Perceivable Margins, especially if they are also Collaborative Actions, since they then show the willingness of several players to perform the actions. When Extended Actions do not produce effects until they are finished and are trivial to maintain, the actions leading up to the completion can be regarded as No-Ops and the initial actions can be seen as having Delayed Effects. When players only have one Focus Loci, these No-Ops can equal Downtime for the player and limit their Freedom of Choice but in contrast be a part of Game Mastery in games with multiple Focus Loci since it requires skill in Attention Swapping.

Producers and Controllers are typically game elements in Game Worlds used to provide Extended Actions that are not provided by players' Focus Loci. In contrast, reaching Area Control can be Extended Actions supported by specific places in the Game Worlds (e.g. the Battlefield series). Combos and Dexterity-Based Actions such as Aim & Shoot are examples of Extended Actions provided by players' Focus Loci and may be supported game mechanically by having a Variable Accuracy that becomes better the longer one aims (seen in the Battlefield series and later installments of the Fallout series). Rhythm-Based Actions are a form of Dexterity-Based Action that can support Extended Actions using or not using Focus Loci.

Interface Aspects

It is quite common to use Progress Indicators as specific Game State Indicators to let players know how much time they have put into an Extended Action (see for example the Left 4 Dead series).

Consequences

Given that they are more difficult to perform than actions that give effect instantly after they are done, Extended Actions provide Challenging Gameplay. Extended Actions typically give one out of three effects: requiring a certain level of commitment from players to start using the actions but then make the continued use easy; encouraging players to use the actions continuously to achieve additional effects; or requiring commitment from players for a continuous period of time. The first reason gives Stimulated Planning and may have Balancing Effects if more powerful actions require more preparation and Resources. The second reason gives players increased Freedom of Choice, as it provides players with additional ways of using actions but can also limit players by making the continuation of the action very valuable, as for example when using Geometric Progression. The third reason can, like the first reason, cause Stimulated Planning and have Balancing Effects but can also increase Tension if the actions are Interruptible Actions since they are Continuous Goals. The last case can also cause Tension and require Risk/Reward considerations if players are vulnerable to hostile actions due to being affected by Helplessness.

Seen from the point of when the they are started, Extended Actions create Delayed Effects.

Relations

Can Instantiate

Balancing Effects, Challenging Gameplay, Delayed Effects, Encouraged Return Visits, Hovering Closures, Perceivable Margins, Stimulated Planning

with Geometric Progresion

Value of Effort

with Helplessness

Risk/Reward, Tension

with Interruptible Actions

Continuous Goals, Tension

with No-Ops

Attention Swapping, Downtime

Can Modulate

Area Control, Collaborative Actions, Controllers, Freedom of Choice, Producers, Rhythm-Based Actions

Can Be Instantiated By

Aim & Shoot, Combos, Dexterity-Based Actions, Investments, Real-Time Games, Time Limits

Can Be Modulated By

Arithmetic Progression, Freedom of Choice, Game State Indicators, Geometric Progression, Helplessness, Interruptible Actions, No-Ops, Progress Indicators, Variable Accuracy

Possible Closure Effects

-

Potentially Conflicting With

-

History

A revised version of the pattern Extended Actions 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.

Acknowledgments

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