Dweets awesomed by u/sigveseb

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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cagr30

function u(t) {

l=c.width+=i=0;h=400;for(;++i<200;)for(j=a=(t+C(i))%2;j++<50;)x.fillRect(l*C(i*i)+~~a*(w=a*h-h)*C(j),(C(i)*C(i)+2)+w*S(j)/13,1,1354)

May 7 2017 9:27 AM UTC

}// 132/140

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u/sigveseb

Someone try scanning it with a barcode scanner
u/cagr30

:)

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cagr30

function u(t) {

c.width=1920; /* clear the canvas */
  for(i=0;i<9;i++)
  x.fillRect(800+i*+S(t)*900, 500, 90, 200) /* draw 50x200 rects */

May 7 2017 8:43 AM UTC

}// 123/140

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MrM@_S

remix of d/2573 by u/MrM@_S

function u(t) {

c.width=200;t||(z=X=2,s=-1);onkeyup=a=>z*=a.keyCode&15||1;x.fillText(X+"="+z+"? Score:"+s,2,9);z==X&&(X*=s++%4*~~t%4+1,z=1);z>X&&(frame=0)

May 5 2017 12:51 PM UTC

}// 138/140

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[The Math Game] Get the left side of the equation equal right side using the numbers 1-9. It is easier if you know how to multiply.

u/sigveseb

Cool game! Only problem is when the goal number's prime decomposition contains a prime number with more than one digit (e.g. 11 and up). Then it is impossible to enter the correct answer!
u/MrM@_S

"3+3+1=7" so X*=s++%4*~~t%4+1 would never have a prime composition of 11 etc. I am pretty sure that my algorithm prevents such causes.....
u/MrM@_S

wait it is "(0-3)*(0 to 3)+1"
u/MrM@_S

(0 to 3)
u/MrM@_S

that leaves a 1 through 10 possibility

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jczimm

remix of d/2659 by u/MrM@_S

function u(t) {

for(c.width=X=256;X-=2;)for(Y=148;Y-=2;x.fillStyle=`hsl(${A=(X*C(t)&Y^(t))&(Y*C(t)+X**S(t))},${A=A*t%50+25}%,${A}%`)x.fillRect(X,Y,2,2)

May 5 2017 3:08 AM UTC

}// 135/140

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u/MrM@_S

Woah! Nice.

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keithclark

remix of d/2671 by u/keithclark

function u(t) {

for(a=1e4,J=S(t/=2)/7,c.width=Z=127;a--;)x.fillRect(X=a&Z,Y=a>>7,1,'p}¶¼<¼¶}p'.charCodeAt(Z+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+Z*t)%15&1)

May 3 2017 4:27 PM UTC

}// 132/140

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6 bytes shorter (thanks p01)

u/iverjo

So good!
u/keithclark

Add a ~ before 'p}¶¼<¼¶}p' to invert colours
u/Lazy1337

epic #rotozoom
u/vain

nice rotozommer

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keithclark

function u(t) {

for(a=c.width|=0,G=36,J=S(t)/4;a--;'p}¶¼<¼¶}p'.charCodeAt(Y*C(t)+G-X*J&15)>>(X*C(t)+Y*J+t*G)%15&1&&x.fillRect(X*G,Y*G,G,G))X=a%53,Y=a>>6

May 3 2017 1:26 PM UTC

}// 138/140

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fullscreen rotozoom

u/joeytwiddle

#spaceinvaders #rotozoom #alien
u/yonatan

3-char shorter transposed bitmap (just posting so I won't forget it): 'ĄǼͶ߿׽ԅØ'

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keithclark

function u(t) {

for(a=1e4,c.width=$=127,J=S(t/=2)/7;a--;'p}¶¼<¼¶}p'.charCodeAt($+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+$*t)%15&1&&x.fillRect(X,Y,1,1))X=a&$,Y=a>>7

May 3 2017 1:18 PM UTC

}// 138/140

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rotozoomer

u/p01

:)
u/p01

Save 4 bytes using
u/p01

x.fillRect(X,Y,1'p}¶¼<¼¶}p'.charCodeAt($+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+$*t)%15&1)

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prawnwarp

function u(t) {

c.width|=0;for(i=0;i<1920;i+=64)for(j=0;j<1080;j+=64){h=3.14+3.14*C(i*0.1+t*(j-540)*0.01);x.beginPath();x.arc(i,j,32,h,h+3.14);x.stroke();}

May 3 2017 11:32 AM UTC

}// 139/140

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yonatan

remix of d/2667 by u/yonatan

function u(t) {

for(n=999;n--;)[i,j]=[[0,v=950],[v,0],[v*2,v]][3*Math.random()|0],x.fillStyle=R(S*.2,C*.2,S/C*99),x.fillRect(S=i+S>>1,C=j+C>>1,1,1)

May 3 2017 10:10 AM UTC

}// 131/140

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prawnwarp

function u(t) {

if(t==0){q=[[0,1070],[960,0],[1900,1080]];a=0;b=0}i=Math.floor(3*Math.random());v=q[i];a=(v[0]+a)*.5;b=(v[1]+b)*.5;x.fillRect(a,b,10,10);

May 2 2017 10:11 PM UTC

}// 137/140

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Based on this video: https://www.youtube.com/watch?v=kbKtFN71Lfs

u/donbright

coool
u/MrM@_S

https://www.dwitter.net/d/2670 byte shave remix
u/iverjo

#sierpinski

dwitter.net | sigveseb (69234)