vPlayer for NES Tetris

A virtual Nintendo NES Tetris (NTSC) player to compete with.

Usage

• To load profile (vJonas and vHarry are very work-in-progress), drop a JSON file to the screen. Alternatively, add ?profile=<URL for json> to URL (Be careful for CORS).
• To start, press Enter key
• To skip to death, press S key
• To reset, press R key

How parameters works

Parameters are written in JSON file. Examples are attached (vJonas and vHarry). Parameter adjustments of them are hugely welcomed!

The player has three states: Safe, Danger, Death. Diagram of state transitions and their probabilities (trials are performed every second) are following:

           <--- danger_to_safe ----
   Safe                                Danger    ---- (1 - danger_to_safe) * danger_to_death --->    Death
           ---- safe_to_danger --->

The probabilities are arrays of three elements: lvl 18, lvl 19, lvl 29 (killscreen) respectively.

lines_*** represents probabilities for number of lines erasing at once, in each level and state. For example, [0.4, 0.2, 0.15, 0.25] means 40% single, 20% double, 0.15% triple, 0.25% tetris. The total must be 1.0.

use_drop affects stacking speed in level 18. It is usually 0 (do not use down button, slow) or 1 (use down button, fast), but you can use intermediate values.

For testing profiles, append ?debug=true to URL and press Enter. This will run 10 instances immediately and data of lines/score for every 30 seconds are output in developer tools console. The output can be used in R script as it is.

TODO

• Points increase by pressing down
• Use a frontend framework. Hyperapp would be great (because the name is like Hypertap!) Now with HypertapHyperapp!