Thursday, 9 March 2017

09-03-2017

十年了呢。

6/3/2007 - 6/3/2017

從單純的分享短片和文章到寫自己的筆記和小說,我在這十年裡面發了大約七百篇東西。當然每一篇的價值各有高低:有些比較用腦、有些比較費時、有些就是單純的轉貼而已。以下是一些節綠和感想:

筆記:我成績進步就是從整理筆記開始的。堂上抄下來的總是帶點雜亂,整理一次剛好可以理順各種疑點也可以找出自己的不足。現在看回去的話其實自己整理筆記的能力還有很大的進步空間--可能是關鍵字使然一篇中史筆記成為了這裡人氣最高的其中一篇。不過當你按一看進去就會發現根本只是一堆史實嘛!文科就是這樣:光知道事實是不夠的,將事實整合起來分析對比才是關鍵。如果我還能再寫十年的話結合自己的文史根基鍛練自己的文筆或許是努力的方向之一吧。

數學筆記:這方面其實沒有太花腦力,倒是要想一些有用的範例比較耗神。很多篇的靈感都是從日常生活和接觸到的東西而獲得的:同學/學生問的問題、舊試卷、奧數、新看的書……每一篇除了可能給不知道存在與否的讀者帶來啟發外也給我帶來了不同角度去處理問題的機會。雖然以我現在研究的方向要寫出類似程度的內容不太容易,不過靈感來的時候還是擋不住--最近用線代做實分析那篇就是個很好的例子。

隨著你在大學深入鑽研一個課題,你對基礎的東西理解也會更深。線性代數的舖排一直是近代數學教育家分歧比較大的議題:不同學系的學生對線代有/需要不同的解讀方式,學生的程度則限制了部分的舖排方式。我自己寫的筆記裡面偏好的是純代數的舖排,而且盡量搭上每項工具的幾何意義。無何否認地這種玩法對學生能力要求比較高,但是我覺得至少對數學系的學生來說一個帶有以嚴謹證明築構出來的核心內容的基礎課程是有必要的。這份筆記到現在無論對我來說還是我回答學生疑問時都給予了一定幫助。

隨筆/作品:就是比較輕鬆的作品。當我檢閱這個標籤時發現很多都是旅遊筆記,不過這也不是一件壞事:因為這恰好證明了自己的旅途並不沉悶,充滿了值得書寫的故事。有趣的是與大多數人不同,我單獨出遊時未必對大部分人感興趣的景點感興趣,反而很喜歡找家出名的咖啡店享受一杯用心調出來的咖啡或者一份本地的甜點,然後觀察窗外(匆匆而過的)行人及其點綴的城市。花上幾小時和異地的朋友天南地北的聊也是我每次出游必做的事,因為正是這些人構成了他們的文化和國家,然後才有了(人工)景點。可以在世界各地找到知音人聊天,應該算是自己的福分吧。

我一直覺得自己寫了很多異想天開的東西,卻沒一個可以好好收尾的。我一直有寫長篇小說的夢,不過果然還是從短篇開始寫起比較好吧?

電腦/遊戲:算法(algorithm)的話先歸到數學那邊,這裡講的是一般的網絡觀察和遊戲心得。遊戲心得並不是一般的攻略(嘛,無論是2007還是2017,將攻略口耳相傳的年代已經過去了;在2017獨立的攻略網也成為了過去式;剩下wikia結構和門戶式大型綜合論壇的世界實在有點單調呢)而是結合自己對數學或是人文的理解所做出的宏觀預測。這種我從小學時代就開始做的事到現在還是滿有趣的,可惜之後的十年可以玩的時間肯定比以前少了吧……以下是幾個我用心肝過的網遊

新絕代雙嬌Online (2005-2009)
到現在還會偶而上,但是轉回新斷線把公會搞散後也沒動力肝了。不過有幾位好友到現在還會聯絡。
Ogame (2008-2009)
就……一款很現實很殘酷很耗肝的遊戲,到頭來還是一場空。
Osu! (2008-)
無須多言,可以參考上方的Osu!頁面。在這裡學到很多東西,不單是樂理,更多是做人的技巧--管理、溝通、協調的技巧。還有很多大概是一輩子的朋友。
Fantasica (2012-2015)
一個用肝和用錢打都可以打出一片天的遊戲,極為多元的玩法和自由交易將這個遊戲的吸金能力推到極致;我在這裡認識的人和Osu那邊的熱血青年們稍有分別,但一樣都是值得深交的朋友。
Quiz.「黑貓」.RPG (2013-2017)
剛倒閉。益智養成的先驅,夠大的故事觀和高質日系畫風都相當吸引,可惜英文版實在做不起來。
地城戰棋 (2015-)
休閒玩?比起上述遊戲遠未到要肝的程度。

運動:顯然地我是車路士(Chelsea)的球迷,不過棒球可以算是我一直有興趣看的第二運動。從小時候的超棒球外傳到甲子園(或者各種類似甲子園式的高校競技)相關動畫到種花職棒網上開始直播,我終於將棒球納入我生活的一部分。在我執筆之時台灣種花隊正和韓國隊8-8平手,希望種花隊今晚不用吃鍋貼吧?………吧?

(EDIT: 無生還啊無生還,讓我們一勝也不行?)

*

我真的沒想過這裡可以堅持十年(另一邊廂xanga倒下了又以另一形式復活過來……透過我朋友之手),但是希望接下來十年我都可以透過這裡和大家再會 :)

Forretrio / Chris
9th Mar, 2017

Tuesday, 21 February 2017

DDR, the 3rd year


3 years since I start played Dance Dance Revolution (DDR). A short summary on my progress over the last year. Well to be honest I only played 3 months out of 12 last year, since they replaced the ITG machine by the stupid PIU machine.

ITG: Here I started to train those 'crazy foots' - I got 86% with 2 misses on MAX300 ("the gate towards the inner DDR world") that has not been replicated in DDR. Below is my best record:



But those custom maps opened a whole new world to me. There aren't lots of BPM 120~140 1/4 equivalent streams in DDR (BPM 240~280 is too fast and 120~140 is quite slow in general) except for some old maps (you don't expect highly electric songs with pace falling in that range) like Paranoia Survivor, but you can find loads of them in ITG. One of my favourite is Hatsura Yuki's ~Confession~, but sadly I failed to find the corresponding difficulty (SP challenge) in Stepmania :( These songs provide excellent training and eventually allow me to play MAX300 fluently. ITG also include diffs with high number of notes while retaining a relatively low density, and that is a nice training for stamina. (Maps like kokoro contains up to 750 notes which is around 17~18 while the real difficulty is around 14+ or 15-).

In 2 months I managed to go through consecutive Lv. 11 (old extended scale) maps - difficulty of these maps varies greatly but they gave me a good foundation on getting through those real DDR songs.

DDR: I spent 1.5 weeks out of 4 weeks to familiarize DDR again, wasting time on easier maps like 12-13-14 or 11-13-15 on a single credit. These are not my limit so I does not gain a lot except limited accuracy due to repeated gaming. But then I decided to start training myself to adapt higher speed - both real speed and apparent speed ("SV"). Plan 8, NEPHILIM DELTA and 放課後ストライド are three excellent songs (14)  for BPM 220+ range -- with consecutive long streams and huge number of notes you eventually pick up the stamina you need for higher difficulty. Another focus before you can confidently step into Lv.15 is the ability to switch between footing 1/2 and 1/4. Here ちくわパフェだよ☆CKP and POSSESSION are two great trainers in 14.

(Well, I had a lucky 1 miss play last year, but that couldn't be consistent...)

Last year I was able to play a few 15 but I will get exhausted after any single attempt, but now I can step into 15 and confidently play most of the songs - except for weird SV changes that requires extra reciting. Pluto series is always hard to do in that sense -- Pluto relinquish (14) and Pluto the First (14) are still hard for me (my record is still B).

14 to 15 is hard because 15 marks the beginning of the inner DDR world, but 15 to 16 is not as hard as that. Before I started to attempt some easier 16s, one of first two 16 passes was from one that I thought to be quite hard among the 16 songs - VANESSA:


The 1/3 stream is extremely nasty, but once you get used with long stream at that speed it becomes more like a routine. Though I haven't tried it for the second time I am quite confident that I can easily get better result.

I got some other high 15s and mid 16s as well...but passing those technical maps are more satisfying --- Spanish Snow Dance (15) that is supposed to be mid 16, and 灼熱Beach Side Bunny (15) with lots of exhausting jumps.

Talking about jumps that is still my weakest link and hardest bit to improve. I passed 隅田川夏恋歌 (16) (another one out of two first 16s that I passed) but I got the "kiai" part by hammering double arrow every note instead the supposedly every other note. The fact that I can't switch between single and double foot fluently hinder my performance on maps heavily seasoned with such features: 轟け!恋のビーンボール!! (a B+ pass) and 嘆きの樹:


Improving accuracy on double jumps takes a damn lot of practices, so I turned into those harder maps that I can achieve relatively easier -- 恋する☆宇宙戦争っ!! (17) and ドーパミン (17) -- in Taiwan I have fresh machine that allows an almost 10% accuracy boost on songs in the 12-14 range, so I made use of the chance to try those hardcore maps, and turned out with some successes:


In order to get through this diff I played two BPM200 songs before trying this in the final stage...and the plan worked out properly. I passed on the first time without the 4 miss extra stage limitation. Same goes for Dopamine :3

So that's my third year on DDR. Perhaps I can get a light taste of 18 next year?

Statistics, 2016:
18 days in DDR, 129 credits
Ability to pass maps: 14 ~ 15- → 15+ ~ 17-
Ability to AA maps: 11 ~ 13- → 14 ~ 15- (under the new grading scale)
Lv. 15: 23Pass / 2AA
LV. 16: 11Pass
Lv. 17: 2 Pass

Tuesday, 31 January 2017

After Dark 4.0 in Windows 7/10

Nostalgia...

Rodger Dodger and Rock Paper Scissor are two main reasons that I keep bringing this antique back to the modern world. Every single time when I adopt a new OS the first mission would be fitting my Chinese input method into the system, and the second mission is to introduce AD4.0 into the machine.

Obviously this is hard because of a few reasons:

1) This is super old. Probably one of the oldest software that people still liked to use in 2017.
2) This is partially for 16-bit system and has limited support for 32-bit system, but machine these days are mainly 64-bit (my Chinese input software failed because of the same reason).
3) The developer decided to integrate the setting page in some very weird position which is then removed in the subsequent Windows version, particularly during the introduction of the Metro UI in 8/10 (and that applies to my Chinese input software...)
4) The installation is flawed - some registry change are missed.
5) This is not the usual kind of screensaver (and again, super old), so you can hardly find support on the Internet except for some people asking the same question every single version of the Windows OS: does AD4.0 fit into Windows xxx?

Anyway I made this entry as to share my way of getting it worked in Windows 7 and 10. Somehow I gave up on doing this on Windows 8 (I only used that computer for a very short time), but the 10-method should work for 8 as well.

Windows 7:

This forum post gave a complete guide on fixing this. It worked for me and should work for every one.

In Windows 7 you have no access to the AD setting page (which was in the monitor page) and you will see "unable to select module..." as the screensaver name. These are minor things (settings can be change directly in the registry and no one cares about the name) but you can fix it following the instructions here.

Windows 10:

(Updated 2/2/17)

EDIT: Somehow I need to perform a recovery on the system hence giving me a second chance to install AD4. Here is a simple solution to get it solved:

- Install AD4 as usual.
- Bring "After Dark.scr" into C:\Windows\System32
- Settings can be done via the registry package from this YouTube video.

Now everything should work the same as what you get in Windows7. The same problem remains -- the 'unable to select module' name and limited access to the settings. Since more registry entries are missed you really have to rely on the package from that video.

But for those AD lovers, I hope the above manual helps you to retrieve what your beloved screensaver that you first met 20 years ago :D