Revision as of 17:34, 16 August 2012

osu!stream

Introduction

osu!stream is a version of osu! built from scratch that is made especially for touch-enabled devices. It is currently available for Apple's iOS platform only, but an Android port is planned. It introduces a brand new game-play system such as the hold circle and connected beats.

It does not support classic osu! maps (due to the nature of iOS system). Instead, maps are created by a special team of mappers to take advantage of the new elements and adhere to a stricter level of standards. Both free and paid maps are available at the "Store".

What is the difference?

• Playable on any iOS devices only.
• Beatmaps are made from scratch.
• You do not need an account to download song packs.
• You can integrate osu!stream with your Twitter account.
• Your high score may be sent anonymously to the site under the name of "Guest" (if happen but requires Internet connection).
• Easter Eggs can be found but there is no Achievement page...

New Game-play system

Note: You can learn it practically at the "Tutorial" about these new game-play elements.

Finger Guides Display

Picture!

• The two transparent circle that appears in-game is created to help beginners to know when to hit the objects.
  • It will shows the suggested method to tackle the design of the map with perfection.
• The green colour is for the left hand and the red colour is for the right hand.
• You can disable this feature from the option menu or after you have completed your tutorial.
• The small line below when you are playing a song is the time of the song by your accuracy hits.
• Average Timing is given at the grade page.
• You can't save old records nor can you save replays.

Connected Beats

Picture goes here

• Connected Beats, as the title suggested, requires you to press both the objects at the same time.
  • Connected Beats are not limited to just hit circle-hit circle, it can be hit circle-slider, hold circle-slider and so on.
• Connected Beats can be identified by having a straight white line connecting with another object.

Hold circle

Picture goes here

• Hold circle requires you to hold the circle until the circle "explodes"
• The hit accuracy is determined by how early/late you hit and your holding time.
  • If you release hold before the circle "explodes", your combo multiplier will reset to 0 but the hold circle will not incur a miss as long as you have at least, touched the hold circle.
  • If you did not hold the circle, your HP will be taken as long as the hold circle have not exploded itself.
• Hold circle can be determined by having a "hold" at the circle with a purple colour background bordered by white colour as permanent default colour scheme.

New Modes to replace the difficulty

Easy mode

Easy mode

Difficulty: Easy + NoFail 

Easy mode is for new-comers to get used of the osu!stream game-play. The gameplay are considerably slower for new player to understand the flow and timing to hit. No lifebar will be issued and playing Easy mode will not unlock Expert mode even when you have 100% accuracy.

The background colour is Green.

Stream mode

Stream mode

Difficulty: Easy ("Stream Down!" from Normal) ~ Normal (start point) ~ Hard ("Stream Up!" from Normal)

Stream mode is a new implementation specially for osu!stream. In this mode, player will start with a half-filled "2nd" lifebar with a normal difficulty setting set. The player is then tasked to fill it full to trigger "Stream Up!" which basically tune the difficulty up (by adding more hit object and alternating to "Hard" design) but still considerately less harder than Expert mode. When player entered "Stream Up!" mode, a (third/second) lifebar is issued and "Stream Down!" will occur when the (third/second) lifebar ran out of health, reverting back to the (Normal/Easy) difficulty setting of design and using the half-filled (second/last) lifebar.

In short, you start in between Easy and Hard.

Do note you must score at least A (>80% accuracy) rank in this mode in order to unlock the Expert mode of the song. Accuracy lower than 80% even when you managed to full-combo it does not count as A (it will be counted as B as usual).

The background colour is Green (Easy), Blue (Normal) and Red (Hard).

Expert mode

Expert mode

Difficulty: Expert

Locked by default and can only be unlocked by completing the Stream mode of the song with an A or better, Expert mode is for players that wants a better challenge. In this mode, player is given a full lifebar and player is tasked to preserve it until the end of the song. Completing it will not unlock anything but bragging rights.

The background colour is Purple and the lights will darken depending on your current HP.

Game Interface

Picture!!!!!

Song list

Go to this link for a full list.

Scoring

Accuracy

Accuracy = Total points of hits / (Total number of hits * 300)

Total number of hits = (Number of misses + Number of 50's + Number of 100's + Number of 300's)
Total points of hits = (Number of 50s * 50 + Number of 100s * 100 + Number of 300s * 300)

In other words, each miss counts as 0 points, each 50 counts as 50 points, each 100 as 100 points and each 300 as 300 points. Add them all together and divide the sum with the number of hits multiplied by 300. If you score only 300s you will get a result of 1.00 which means 100% accuracy. If you score only 50s you will get a result of 0.3333 which means 33.33% accuracy.

Score

The score given by each hit circle and end of a slider is calculated with the following formula:

Score = Hit Value + Hit Value * (Combo multiplier * Difficulty multiplier) / 25

Hit Value = The hit circle judgement (50, 100 or 300).
Combo multiplier = (Combo before this hit - 1) or 0, whichever is higher.
Difficulty multiplier = The difficulty setting for the beatmap.

Additionally each slider start, end and repeat tick awards 30 points and each spin of a spinner awards 100 points. You are also awarded with additional bonus of 10 point depending on the speed of spinning the spinner after the spinner meter is full.

Hit circle judgement

Hit-circles

• You get a 300, 100 or 50 from a normal hit circle depending on how accurately you tap on it.
• If you do not tap on the hit circle at all or tap on it too early, you will receive a miss.
  • If you tap on it really, really early, the object will shake instead. Nothing will happen technically except visually telling you are tapping it too bloody early.

Hold-circle

• The judgement of the hold circle depends on the initial tap and the hold time before exploding.
  • 300 if you do it perfectly.
  • 100 for a less accurate initial hold and holding it properly.
  • 50 for at least, touching it.
  • Multiplier reset if you did not hold the circles properly and Miss for not doing it.

Sliders

• The judgement for sliders depends on the accuracy of the initial tap.
• Sliders consist of slider ticks, which include the start, end and repeat points of the slider.
• You receive a 300 if you successfully get all slider ticks and accurate initial tap, a 100 if you get at least half of them with considerable initial tap and a 50 if you manage to hit even one of the ticks or the initial tap.
• Clicking a slider way too early does not incur a miss, but will reset the score multiplier to 0.
• You will only receive a miss if you do not do the slider.

Spinner

• For a spinner, you receive a 300, 100 or 50 depending on the number of spins done compared to the length of the spinner.
• You receive a miss if you are not able to fill the meter shown on both sides of the spinner.

Multiplier

The following each add a point to your score multiplier:

• A successfully hit on the hit circle.
• A successfully hit at the start of a slider.
• A successfully touched end of a slider.
• A successfully touched on the slider tick.
• A successfully completed spinner.

The following will reset your score multiplier to zero:

• Missing a hit circle.
• Releasing the Hold-circle when it is not exploded yet.
• Unable to simultaneously hit the connected beats. (Hit one miss one)
• Clicking a slider start way too early.
• Missing a slider start or slider tick.
• Unable to fill up the gauge of a spinner with a clear status.

The following will not increase or reset your score multiplier:

• Missing a slider end. (Will result in getting Good! or 100/50 Hit)
• Spinner's score Bonus

Grades

Normal grades

• SS = 100% accuracy
• S = Over 90% 300s, less than 1% 50s and no misses.
• A = Over 80% 300s and no misses OR over 90% 300s.
• B = Over 70% 300s and no misses OR over 80% 300s.
• C = Over 60% 300s.
• D = Anything else.

Life meter

Unlike the Standard osu!, the lifebar is different in osu! stream as it is based on gameplay mode.

In Easy Mode, lifebar is completely removed.

In Stream Mode however, player is given three lifebars and player starts with the second half-filled lifebar at start. Player (gain/lose) the lifebar by (Stream Up!/Stream Down!) message for (filling the lifebar full/used up all the HP on that lifebar). After the message is shown, the game will show an animation at the background which (tune up/tune down) the difficulty and issue you a half-filled lifebar. If a player is issued a "Stream Down!", player is given temporary invisibility (due to no health left in the currently using lifebar) until the animation is completed in which the lifebar will be substituted with a half-filled one in the previous difficulty.

In Expert Mode, a full one lifebar is issued.

In terms of getting life for lifebar, it is explained as in below.

You gain life from:

• Hit allowed: 300, 100, osu!, gold good! and green good!.
  • Hitting the hit circle(s). (Better judgement leads to more life gain. The last hit circle in a color combo awards more life.)
  • Hitting the slider(s) start, end or return tick. (Better judgement at the end tick leads to more life gain)
  • Completing the Spinner and Hold Bubble(s) properly.

You lose life from:

• Hit cause: 50 , Miss
• Missing any hit or sliders.
• Not holding the Hold Bubble until it explodes.
• Unable to complete the spinner with "Clear" message.

You reserve life from:

• Default. Lifebar will not drain at all while playing.

Questions

Why (insert any copy-righted songs here) is not included?

• One, osu!stream is a commercial application (it is under Apple complete with the license to stay on their App Store)
• Two, you need license or the rights to use from the company of the said copy-righted song (which can range from expensive to non-negotiable).
• Three, using copy-righted songs without permission will get peppy and osu!stream in trouble with written and/or cyber law.

How do I get more beatmaps?

• You can go to the "Store" section in the game or pressing the "Download more songs..." at the "Play" section.
• The beatmaps are in bundle, and some are priced. Make sure to look out of the price tag if you do not want to accidentally buy it.

I wanna map a beatmap for osu!stream! How can I do it?

Credits

• Official website
• Discussion forum (osu! website)