Dwitter - javascript demos in 140 characters

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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katkip

function u(t) {

x.shadowBlur=20;x.shadowColor='red',f=s=>{if(s>10)x.fillRect(960+C(s*s)*s,540+S(s*s)*s,10,10),f(s/1.1)}
f((t*t*t)%900)

Jan 23 2019 4:41 PM UTC

}// 118/140

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#virus evolving

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katkip

function u(t) {

f=(X,Y,s)=>{if(s>6)x.fillStyle=R(C(t+s)*256),x.fillRect(X-s/2,Y,s,s),f(X-s,Y,s/2),f(X,Y-s*t,s/2),f(X+s,Y,s/2),f(X,Y+s/t,s/2)};f(960,540,750)

Jan 19 2019 5:53 PM UTC

}// 140/140

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Hell #satan. #red #recursive #recursion. I still love god and hate satan

u/metamero

i loved this

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davidsharp

function u(t) {

c.width|=0;k=100;x.font=k+'px courier'
for(i=0;i<22;i++)for(j=0;j<22;j++)x.fillText('?',-k+(k*i)+(t*k)*(j%2||-1)%k,k*j)

Jan 23 2019 1:02 PM UTC

}// 119/140

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metamero

remix of d/11917 by u/Xen

function u(t) {

FPS=2;
g=(A=t>1?B+(B=A):B=1)/B
x.lineTo(t*99,1080*(2-g))
x.stroke()
throw g

Jan 23 2019 11:59 AM UTC

}// 75/140

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this graph shows the fast convergence of u/Xen 's algorithm for golden ratio

u/katkip

I don't understand anything
u/pavel

A and B are sequential Fibonacci numbers, their ratio tends to the golden ratio.

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yonatan

remix of d/9776 by u/yonatan

function u(t) {

T=f=>f(i)+f(i*i)*i**.5*t
for(i=9e3;t<4&&i--;q>9e3|q<99&t<2&&x.fillRect(960+a,540+b+t*t*2,4-t,4-t))a=T(S),b=T(C),q=((a*a)**.5-99)**2+b*b

Jan 18 2019 8:29 PM UTC

}// 135/140

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katkip

function u(t) {

c.width*=1;for(i=0;i<9;i++)for(j=20;j--;)x.fillStyle=R((o=j*7-i*3,o),o,o),x.fillRect(400+j*2+i*100+S(t)*300-S(t)*j*5,400-j*4,50,200)

Jan 19 2019 8:22 PM UTC

}// 132/140

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Most #realistic 3D #default! #d3

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katkip

remix of d/11893 by u/katkip

function u(t) {

c.width*=1;for(i=144;i--;)for(j=50;j--;)
x.fillRect(600+i*9-j*12,600+j*C(t*5)*9-Math.abs(72-i)*S(-t*5)*2,6,+Math.abs(i-72)/5)

Jan 19 2019 8:14 PM UTC

}// 125/140

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#d3 moving roof

u/13thptr

weird flex but ok

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metamero

remix of d/11871 by u/metamero

function u(t) {

eval(U=unescape(escape`𭀿𢐮𭡡𫁵𩐽𠑲𬡡𮐮𩡲𫱭𚁁𛡶𨑬𭑥𚐮𫁥𫡧𭁨𚰧𨱨𨑲𬰠𙰫𩑳𨱡𬁥𚁁𛡶𨑬𭑥𚐮𬡥𬁬𨑣𩐨𛰥𭐮𛠮𛠯𩰬𘢹𼠢𚐮𬡥𬁬𨑣𩐨𛰥𛠮𛱧𛀢𼀢𚐮𫁥𫡧𭁨𚰧𠠧𞡣𛡯𭑴𩑲𢁔𣑌🐢🁩𫡰𭑴𘁩𩀽𢐾🁴𩑸𭁡𬡥𨐠𬡯𭱳🐱𜰠𪑤👁🠢𚱕`.replace(/u../g,''))+` // 琿௸𨡬`)

Jan 20 2019 2:41 PM UTC

}// 139/140

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now the right way to count bytes AND characters of a javascript (UTF-16) code

u/metamero

#tool UTF-16 byte and char counter #application js code size

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metamero

remix of d/11915 by u/metamero

function u(t) {

F=(a,b)=>`<textarea id=${a} onblur=${b}escape(${a}[v])>${a==`A`?`💩`:``}</textarea>`;t?v='value':c.outerHTML=F(`A`,`B[v]=`)+F(`B`,`A[v]=un`)

Jan 22 2019 8:42 PM UTC

}// 139/140

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unescaped ⇄ escaped

u/metamero

#tool
u/metamero

focus and edit any field then click out of it

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metamero

remix of d/11840 by u/metamero

function u(t) {

eval(unescape(escape`𣐽𭀿𠰡👓🱍𛡭𨑰𚀨𫐬𪰩🐾𮀮𩡩𫁬𤡥𨱴𚁭𙑮𚡮𛁪👭𛑭𙑮𛁮𛁮𛁉👡🐾𚁭𚱡𚐥𜐴𝀩𯁫🰭𛑫🱭𧡓🱍𦱫𧐺𧰺𤰽𭠦𜠿𢐨𭠦𝀿𜐲𞀺𫠩𞡉𚁶𙠱🰱𝐺𜐩𙑮𚱪𞡃👭𛁣𛡷𪑤𭁨🐲𝐶𚐺𦱉𚁃𚰽𞐬𡡐𤰽𚰫𬰩𛀮𛠮𣑝𞡛𫠽𜐶𛁶👳🐲𛁯𫡫𩑹𩁯𭱮👥🐾𭠽𩐮𭱨𪑣𪁝`.replace(/u../g,'')))

Jan 19 2019 3:30 PM UTC

}// 140/140

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🐍 #snake 🐍 #GAME 🐍 with death !... wasn't it deadly enough ? 🐍 now with increasing difficulty 🐍 add a space on end of the code to see score 🐍 play on keyboard with WASD 🐍 jogo da cobrinha 🐍 doidera 🐍 things went crazy !

Show more comments…
u/metamero

#compressed using the NEW tool d/11852
u/metamero

first apple is crazy snake prologue then score=FPS ; there are 2 levels of hardness: hardcore = never throw or maze = don't fall in dead lock
u/katkip

This is the best and shortest snake game ever
u/metamero

the first apple is fast but is the smallest snake (so it's easier then it looks, i found fun). then it gets from difficulty level 3 to 60.
u/metamero

go on, don't be scared ;) what is your best score?
u/katkip

879
u/Joachim

#best