Voltris

Voltris is mainly a training tool for stacker games such as tetris.

features of the practice tool:

• ability to change gravity at will.
• ability to draw directly on the board to test differents setups
• ability to change the piece queue to avoid relying on randomness to test a situation.
• ability to make a savestate of the current position of the board to test different possibilities for the same situation.
• ability to undo/redo a previous piece placement or drawing on the board by doing ctrl+Z/Y.
• ability to change the size of the board, be it the amount of collumns or lines.
• an algorithm that will test every ways to do a perfect clear (clearing the whole board) using the next 7 pieces and will display them. 
• an algorithm that will calculate the best way to place a piece given the next 5 pieces to downstack.

other gamemodes:

Sprint (40 lines; 100 lines; 1000 lines): clear the suggested amount of lines as fast as possible
Scoring: score as many points as possible within the time limit.

Survival: score as many points as possible without dying with increasing difficulty.

multiplayer: battle against a bot or a friend locally (online mode not available yet).

Every gamemode except multiplayer and the practice tool has a replay function that allows to see the replay of the personal best of the player in that gamemode.

Finally, the tool allows the user to change their control as well as some handling settings you'd find in non guideline stacker games such as "DAS, ARR and SDF".

Differences between browser version and Downloadable executable versions:

• as the browser version cannot save files, highscores are not available and replays cannot be saved.
• settings can be changed but wont be saved when exitting the game on browser for the same reason.
  
• as the browser version does not have access to threads, you may experience lag when placing pieces using the downstacking algorithm or pcvision (desktop does the calculation in an asynchrone way so there is no freeze).
• skins are not available on browser and the skin is set to "default".