Screens and Navigation

#Main Menu

This is the first screen you land in after the resources have loaded.

• Play/プレイ - This will take you to the song selection screen.
• Settings/設定 - This will take you to the settings screen.

#Settings

In this screen, you can set various attributes from the game.

Volume Settings:

• Song Volume
• Touch Feedback Volume
• Hint Sounds

Timing Settings

• Global Offset (-1000 to +1000 ms)
• Input offset (-250 to +250 ms)
• Approach Rate (0-10) - detailed below
• Overall Difficulty (0-10) - detailed below
• Sync Mode (detailed below)

Approach Rate (AR) and Overall Difficulty (OD)

From the osu! wiki:

The Approach Rate is a number (from 0 to 10) that indicates how long circles stay on the screen, from the moment they appear until the time to click on them. Higher approach rates mean that circles will be shown for a shorter period of time, giving you less reaction time to plan ahead when to click on them. Inversely, lower approach rates mean that circles will be shown on the screen for a longer time. This gives gives you more time to react to each circle, but can result in an excessive number of circles on the screen if the AR is too low.

From the osu! wiki:

The Overall Difficulty is a number (from 0 to 10) that indicates how difficult it is to achieve high accuracy. Since accuracy is important for gaining HP, overall difficulty indirectly influences how hard it is to pass a map. Higher overall difficulties mean a smaller window of time in which one must hit a circle, both in general and terms of getting a 300. Spinners must also be spun more in order to fill up the gauge in time. Note that in some cases, raising the OD can make previously possible spinners impossible.

In SSTrain terms:

• AR determines the time required for a note to travel from their spawn spot to the hit zone
• OD determines how hard it is to achieve a 'perfect' hit

-	0	1	2	3	4	5	6	7	8	9	10
AR	1800	1680	1560	1440	1320	1200	1050	900	750	600	450
OD - Perfect	79.5	73.5	67.5	61.5	56.5	49.5	43.5	37.5	31.5	25.5	19.5
OD - Great	139.5	131.5	123.5	115.5	107.5	99.5	91.5	83.5	73.5	67.5	59.5
OD - Nice	199.5	189.5	179.5	169.5	159.5	149.5	139.5	129.5	119.5	109.5	99.5
OD - Bad	249.5	237.5	225.5	213.5	201.5	189.5	177.5	165.5	153.5	141.5	129.5

Sync Mode

• Default - The one the application currently uses, shouldn't be changed unless you experience performance issues
• Constant Sync - sync will be constantly updated based on the current position of the song.
• Initial Sync - the game will attempt to sync in the first 500 ms of a song or 500 ms after the song was unpaused.
• Disabled - There will be no sync at all.

Other

• Path to beatmaps This is fixed (note below*)
• Sorting Mode - specifies which sorting mode will be used for the songs in the song selection screen (tap to change)
• Sorting Order - ascending / descending
• Reload Beatmaps

Pressing the back button will cancel your changes and take you back to the main menu. Tapping 'Save and Return' button will save/apply your settings and take you back to the Main Menu screen.

It is possible to save your beatmap files and have them located in a different folder if you create a link between sstrain and the location of your folder. Keep in mind that the folder structure must be the same. reference

#Play/プレイ

In this screen you can select the song you wish to play. Buttons:

• Next - This will take you into the actual game screen
• Back - This will take you back into the Main Menu (selected song is preserved)

#Song Screen

This is the main part of the game. It consists of 4 elements:

• The tap zones (5)
• The combo/accuracy popups
• The accuracy bar (based on osu!'s) used to keep track of your accuracy overall
• The Notes. (they spawn from one of the 5 source spots on the top and then head towards the tap zones)

As soon as you enter this screen, you'll be greeted by a 'Tap to begin!' message.

You can pause the game at any time by pressing the back button.

To un-pause, simply tap the screen again.

#Results Screen/結果発表

The results screen will display accuracy related information, as well as your 'combo' and the amount of each type of hits you had. Press the continue button to go back to the song selection screen, or press retry to try playing the song once again.

• Largest Combo: displays the largest combo achieved and if you've managed to get a Full Combo, the app will mention it!

• % Accuracy: Normalized accuracy calculation which uses the values below.

• Avg. Accuracy: The average accuracy for hits within 50% of the note speed (the BAD- range)

• Accuracy Range: The average of the notes under the average for the min, the average of the notes above the average for the max

• Unstable Rating: based on osu!'s formula, it is the standard deviation of all the hits multiplied by 10 - the lower, the better.

• Perfect-Great-Nice-Bad-Miss: Counters on each of the types of hits performed throughout the song.

Accuracy	% value
Perfect	100
Great	75
Good	50
Bad	25
Miss	0