Dweets awesomed by u/3bl3gamer

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: #ScaryMovies

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New_Core

function u(t) {

w=c.width=1e3;b=P=>Math.pow(P,P);for(i=w;i--;)r=b(b(q=Math.abs(C(~~t%20*i/4)/2),1)+b(q,2),-1/1),x.fillRect(500+r*C(i)*50,250+r*S(i)*50,3,3);

Oct 1 2016 7:15 PM UTC

}// 140/140

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u/sigveseb

nice
u/iverjo

The sun!
u/iverjo

Btw, I'm looking forward to this: https://developer.mozilla.org/en-US/docs/Web…
u/iverjo

When browsers catch up, we can do a**b instead of Math.pow(a,b)
u/rep_movsd

FWIW double star exponentiation works on all current browsers I think

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larsch

function u(t) {

x.clearRect(0,0,1920,1080);for(y=0;y<27;++y)for(b=0;b<48;b++)
x.fillRect(b*40,y*40,C((b*y)/8+t*2.5)*40,S((b-y)/7+t*3)*40)

Sep 29 2016 9:08 AM UTC

}// 122/140

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u/iverjo

Smooth!
u/New_Core

Would be nice if dwitter had so you could post an example based on a dwitt without posting a new one. for example on this one I would post.. c.width=2e3;for(y=1500;y--;)a=y%29,b=y%52,x.fillRect(b*40,a*40,C((b*a)/8+t*2.5)*40,S((b-a)/7+t*3)*40)
u/iverjo

Ah, a golfed version :)
u/lionleaf

Good idea, I've been toying with the thought for a while. What's your take on how it should look / work in practice? Allow comments to be a dweet that can be opened and closed?
u/New_Core

one way would be to have like a offspring dweet button... when you use it the code will be placed in a dropdown list under the original dweet.. not sure how it should look like but the original show allways first and then you can select an edited version. (keeps comments clean)
u/iverjo

Here's an idea: https://github.com/lionleaf/dwitter/issues/7…

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iverjo

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e11-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(i,j,1,S(k/9))}

Sep 28 2016 1:14 PM UTC

}// 134/140

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Burning ship fractal, zoomed in on an interesting point

Show more comments…
u/iverjo

128 characters: for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

127 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

126 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}
u/donbright

speechless!!
u/iverjo

#fractal
u/iverjo

#burningship

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blackhalt

remix of d/444 by u/New_Core

function u(t) {

c.width=2e3;for(i=132;i--;)x.fillStyle=R(255*S(1.5*i%999+t),255*S(1.5*i%99+t),255*S(-1.5*i%999+t)),x.fillRect(500+i%10*100,i%13*110,100,110)

Sep 27 2016 2:42 AM UTC

}// 140/140

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New_Core

function u(t) {

c.width=2e3;o=Date().split(/[ :]/);for(i=3;i--;){q=o[i+4]*0.105;if(i<1)q=q*5;x.moveTo(1e3,f=500);x.lineTo(1e3+f*S(q),f-f*C(q));x.stroke()}

Sep 23 2016 9:15 AM UTC

}// 138/140

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u/lionleaf

Oh awesome! It's actually correct as well
u/New_Core

#clock

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iverjo

function u(t) {

a=Math.abs;w=c.width=64;for(n=i=2304;i--;)d=a(i%w-32)+a(i/w-19),x.fillStyle=R(n*S(z=d/6-t*2),n*S(z-2),n*S(z-4)),x.fillRect(i%w,0|i/w,1,1)

Sep 10 2016 6:11 PM UTC

}// 137/140

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Somewhat inspired by http://img.gfx.no/1902/1902693/app.jpg

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iverjo

remix of d/444 by u/New_Core

function u(t) {

a=P=>Math.abs(P-5);for(n=i=255;i--;)d=a(X=i%11)+a(y=i/11|0),x.fillStyle=R(n*S(z=d/2-t*2),n*S(z-2),n*S(z-4)),x.fillRect(420+99*X,99*y,90,90)

Sep 10 2016 6:06 PM UTC

}// 139/140

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Inspired by http://img.gfx.no/1902/1902693/app.jpg

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New_Core

function u(t) {

b=c.width=2e3;for(i=0;i<9;i++){a=545+i*100+S(t)*900;if(a>(d=b-55-(9-i)*55))a=d;if(a<(e=i*55))a=e;x.fillRect(a,400,50,200)}

Sep 4 2016 3:45 PM UTC

}// 122/140

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u/13thptr

#default

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iverjo

remix of d/350 by u/iverjo

function u(t) {

c.width=960;x.font='250px A';x.textAlign='center';x.fillText(String.fromCharCode(55357,56906-[0,2,1,2][0|t*1.2%4]),470,325)

Aug 25 2016 9:40 PM UTC

}// 123/140

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Does this work on Mac and iPhone?

u/lionleaf

Works on Chrome Mac

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New_Core

function u(t) {

a=c.width=100;d=x.getImageData(0,0,a,a);p=d.data;for(i=3e4;i-=4;)b=a*S(i/5e3+t),q=i%400,p[i]=b+q,p[i+1]=-b+q,p[i+3]=i;x.putImageData(d,0,0);

Aug 24 2016 3:40 PM UTC

}// 140/140

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A 2 color plasma, couldnt fit the 3:d color

u/icecuber

Can you fit the 3:d color with this (reduced 21 bytes)? a=c.width=99;d=x.getImageData(0,0,a,a);for(i=3e4;i--;)d.data[i]=i%396+[b=S(i/5e3+t),-b,,i][i%4]*a;x.putImageData(d,0,0)
u/New_Core

nice.. that is much better
u/New_Core

a 3 color test added on icecubers code a=c.width=99;d=x.getImageData(0,0,a,a);for(i=3e4;i--;)d.data[i]=i%396+[S(q=i/5e3+t)*0.6,S(q+t)*0.3,S(q+t*4),i][i%4]*a;x.putImageData(d,0,0)
u/iverjo

Nice :) I find your attempt at plasma better than mine: Btw, you can replace 0.6 with .6 and similarly for 0.3
u/iverjo

https://dwitter.net/d/48

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