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# A Walk In A Metro Tunnel |
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A Walk In A Metro Tunnel is a walking simulator. The environment is the |
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Ruoholahti-Lauttasaari part of the Helsinki metro, with the interiors |
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being completely improvised, but the route based on [some plans found |
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on the internet (page 41)][metro-plan]. |
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A Walk In A Metro Tunnel is a walking simulator. The environment is |
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the Ruoholahti-Lauttasaari part of the Helsinki metro, with the |
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interiors being completely improvised, but the route based on [some |
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plans found on the internet (page 41)][metro-plan]. |
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After writing most of this game, I ran into a problem: the default |
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floating-point numbers used in GLSL (that is, 32-bit ones) aren't |
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accurate enough after running them through as many transformations as |
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the ray marching code does, which results in varying amounts of visual |
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noise. To preserve compatibility and avoid complexity, I decided to |
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incorporate the noise into this project. So while one theme of this |
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game is metros, and the Helsinki Metro specifically, the other part is |
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about floating-point inaccuracy, and how you can get some |
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understanding about how floating-point numbers work when their errors |
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are such a visible part of the world. |
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The game takes about 25 minutes to walk through completely. |
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### Controls |
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- WASD or IJKL to move |
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- Arrow keys or mouse to look around |
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- Shift to run |
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- Q to auto-walk (like pressing W/I continuously, but just one key |
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press) |
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#### Configuration keys |
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- B to toggle head bobbing animation |
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