Difference between revisions of "One-Way Travel"

Revision as of 16:02, 4 June 2011

Movement from one part of a game world to another which cannot be reserved.

When movement for a game element in a game cannot be undone this movement is a One-Way Travel.

Examples

The pawns in Chess can only move forward, although also diagonally so when doing normal or en passant capturing.

Arcade Games such as Pac-Man and Donkey Kong that consist of levels have One-Way Travel between these, and so does the First-Person Shooter games in the Doom and Quake series (Hexen was the first to not have this). Scrolling Computer Games such as 1942 and Zaxxon forces players into a One-Way Travel at a certain speed although players may have some leeway in both horizontal and vertical position on the gameplay area. For those games that loop back to the first level at some point (instead of generating new levels indefinitely) still provide a One-Way Travel since the lack of effect players have on the revisited levels make them effectively new ones.

Leaving the city of Kirkwall to join the Deep Roads expedition in Dragon Age II is effectively a One-Way Travel even if one later returns to the city. This since the return will start a cutscene progressing the storyline and changing what quests are possible there.

Using the pattern

One-Way Travel is a way to modulate Movement in games, typically to help maintain Predetermined Story Structures or to create Leaps of Faith. Although implementing One-Way Travel may mainly consist of not designing for actions that let players return to previously visited places, it can be explicitly design for by using The Show Must Go On in Real-Time Games to force Movement of players' Avatars (technically it may be the presentation of the Game Worlds that move). It can also be explicitly created through blocking returns by introducing Obstacles that appear as Irreversible Events after one has entered specific areas of Levels or Game Worlds.

Narrative Aspects

Since One-Way Travel can be used to create Irreversible Events, they can be tools for ensuring that Predetermined Story Structures are unfolded in a certain way as long as they depend on changes in physical location. Since they quite often represent travel over long distances or significant jumps forward in diegetic time, they are quite often modulated by Cutscenes.

Travelling back to areas previous visited to not have to be incompatible with One-Way Travel. The pattern concerns gameplay, so if players can return to a part of the Game World but the gameplay has changed even if only being distinctly close to some high-level closure the pattern still holds. Diegetic changes probably need to be made in these cases to uphold Thematic Consistency but these can be motivated even after a brief period of gameplay through use of Cut Scenes.

Consequences

One-Way Travel is a way to make Movement in Game Worlds or Levels into Irreversible and Ultra-Powerful Events. As such, it makes Reversibility impossible and this can be used to guarantee at least location in Predetermined Story Structures. In games including much Movement, the One-Way Travel may be limited to noteworthy forms of Movement such as Quick Travel or Warp Zones, or to situations where it creates specific gameplay choices in the form of Leaps of Faith.

Relations

Can Instantiate

Irreversible Events, Leaps of Faith, Predetermined Story Structures, Ultra-Powerful Events

Can Modulate

Game Worlds, Levels, Movement, Quick Travel, Warp Zones

Can Be Instantiated By

Irreversible Events together with Obstacles

Real-Time Games together with The Show Must Go On

Can Be Modulated By

Cutscenes

Possible Closure Effects

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Potentially Conflicting With

Reversibility

History

New pattern created in this wiki.

References

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Acknowledgements

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