Dweets 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.

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Current theme challenge: #ScaryMovies

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sigveseb

remix of d/405 by u/sigveseb

function u(t) {

for(n=c.width=i=2e3;i--;x.lineTo(1e3+n*X/Z,560+n*U/Z))F=S(i),U=C(i),V=i%5-2,Z=V*C(t)-F*S(t)+12+9*S(t/2),X=V*S(t)+F*C(t);x.stroke()

Aug 7 2016 2:04 AM UTC

}// 130/140

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u/iverjo

Very impressive!

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sigveseb

function u(t) {

s=S(t);r=a=>Math.random()*3|0;for(n=c.width=i=2e3;i--;x.lineTo(n*X/Z,n*U/Z))F=r(),U=1+r(),V=r(),Z=V*C(t)-F*s+9,X=4+s+V*s+F*C(t);x.stroke()

Aug 6 2016 10:31 PM UTC

}// 138/140

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u/iverjo

I admire your mad skills

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sigveseb

function u(t) {

s=S(t);r=a=>(Math.random()*2|0)-.5;for(n=c.width=i=99;i--;x.lineTo(n*X/Z,n*U/Z))F=r(),U=s+r(),V=r(),Z=V*C(t)-F*s+2,X=s+V*s+F*C(t);x.stroke()

Aug 6 2016 9:37 PM UTC

}// 140/140

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just a few more bytes and this would look reasonably sweet instead of quite crappy :3

u/iverjo

Cool!
u/donbright

3d stuff is genius
u/katkip

#cube

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sigveseb

function u(t) {

r=s=>Math.random()*s;for(m=i=128;i--;x.fillText('❄',r(2e3),r(2e3)))x.fillStyle=R(W=m+r(m),W,W*1.5);x.drawImage(c,S(t/13)*S(t/11),.5)

Jul 28 2016 3:28 AM UTC

}// 132/140

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u/iverjo

Beautiful! Looks like a misty storm of some sort
u/sigveseb

#rain

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sigveseb

remix of d/308 by u/b4rc0ll0

function u(t) {

a=Math.random;x.f=x.fillRect;t||(W=999,X=Y=U=V=5),U+=a()-.5;V+=a()-.5;x.f(X,Y,9,9),x.f(Y,X,9,9),X+=U,Y+=V,U*=.99,V*=.99,X=(X+W)%W;Y=(Y+W)%W

Jul 22 2016 2:51 AM UTC

}// 139/140

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This is http://dweet.dwitter.net/id/308?autoplay=1 with velocity-based motion.

u/b4rc0ll0

it's the same , i compute a random orientation for the velocity and than apply S and C of it to the point
u/iverjo

b4rc0ll0: This dweet doesn't use S and C. Instead it has variables U and V for horizontal and vertical speed respectively. This makes the speed dynamic. Interestingly, this technique also yields more diagonal motion.
u/Zolden

oh, nice to know someone had similar idea
u/iverjo

#random

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sigveseb

remix of d/312 by u/iverjo

function u(t) {

i=W=c.width=256;x.lineWidth=3;x.moveTo(X=W*t%W,V=60);x.arc(X,V,40,G=S(t*9)/3+.3,6.3-G);x.lineTo(X,V);x.fillStyle='#ff0';x.fill();x.stroke()

Jul 22 2016 2:32 AM UTC

}// 139/140

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#pacman

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sigveseb

function u(t) {

d=c.width=64;x.fillRect(0,0,d,d);x.fillStyle='#fff';x.textAlign='center';x.fillText(['EAT','SLEEP','RAVE','REPEAT'][(t*4)%4|0]+'.',32,22)

Jul 21 2016 11:22 PM UTC

}// 137/140

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u/iverjo

This needs music :P
u/iverjo

Where is dwitter's music feature?
u/magna

dweetplayer.net :)

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sigveseb

function u(t) {

c.width=512;x.beginPath();x.translate(256,128);(a=b=>{b&&a(b-1);x.rotate(1+S(t/99));x.lineTo(C(t+b/90)*b/8+b/4,9+S(t)*99)})(512);x.stroke();

Jul 21 2016 10:40 PM UTC

}// 140/140

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u/iverjo

Cool! If you had to give this a name, what would it be?
u/sigveseb

Dweety McDweetface
u/iverjo

lol
u/iverjo

Swirly McSwirlface

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sigveseb

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=1/Z*4e3,W/2,W/4),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-6)})(36)

Jul 21 2016 8:08 PM UTC

}// 136/140

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u/iverjo

Nice remake of https://youtu.be/sQNcIKAIBF0?t=4m6s :D
u/iverjo

1/Z*4e3 can be replaced with 4e3/Z
u/sigveseb

Right you are! I thought I had already done that :3
u/Ameo

Holy s*** that's absolutly amazing.
u/sebbert

TiTAAAAAN

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sigveseb

remix of d/297 by u/sigveseb

function u(t) {

L=c.width=255;for(i=9<<12;a=i&L,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(L*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Jul 21 2016 5:43 PM UTC

}// 140/140

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with wobbles!

u/iverjo

Insane!
u/joeytwiddle

amazing :)

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