Dweets awesomed by u/sfz

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: #Opposites

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aemkei

function u(t) {

for(c.width=90,b=[a=this.b||0],i=3e4;i--;x.fillRect(i%90,i/90,1,b[i]=a?3==d|a[i]&2==d:24*i%7%2))for(d=0,j=5;e=87*(2<j--)+j;)d+=a[i+e]+a[i-e]

Feb 19 2017 10:33 PM UTC

}// 140/140

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u/lionleaf

wow, awesome! Game of life!
u/iverjo

Impressive
u/aemkei

Based on aem1k.com/life
u/aemkei

#gameoflife

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New_Core

remix of d/630 by u/New_Core

function u(t) {

for(a=i=629;i--;)s=99/(b=-a+(i+t*60)%a),X=a*S(i*99)*s+1e3,Y=a*C(i)*s+500,i<628?b+=a:(X=Y=0,s=a),x.fillStyle=R(b,b,b),x.fillRect(X,Y,s*9,s*9)

Jan 20 2017 9:28 AM UTC

}// 140/140

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for a smoother start

u/donbright

bravo
u/iverjo

#stars #starfield

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New_Core

function u(t) {

c.width=2e3;for(a=i=629;i--;)s=-150/((i+t*60)%a),X=a*S(i*.31)*s+1e3,Y=a*C(i*.3)*s+500,x.fillRect(X,Y,s*9,s*9),x.lineTo(X,Y);x.stroke();

Jan 17 2017 4:08 PM UTC

}// 135/140

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Show more comments…
u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/ilSilvano

That's three times ridiculously impressive.
u/joeytwiddle

I feel like god is pulling all the thread out of the universe
u/hope4tg

Haha, agree with joey, the zoom out effect is awesome
u/Lazy1337

#d3
u/katkip

#infinite
u/vain

really impressive

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ose

function u(t) {

for(i=0;i<20;i++){
x.fillStyle=R(S(i*t)*255,S(i+1+t)*255,S(i+2+t)*255);
x.fillRect(i*150+100*S(t),(t*50),50,150);
}

Jan 14 2017 4:08 PM UTC

}// 115/140

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Psychedelic sneks

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New_Core

remix of d/590 by u/New_Core

function u(t) {

c.width=2e3;for(b=i=200;i--;)i>180?a=10*S(t*4+i*9):a=0,x.fillRect(1e3+2*(b-i)*C(i-t)*S(i-t)+100*S(t+i*0.03-a*.08)+b*S(t/2),i*5+a,5,5)

Jan 14 2017 12:28 PM UTC

}// 133/140

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A tornado ;)

u/sigveseb

nice
u/sigveseb

nice
u/sigveseb

btw New_Core, the next hour we're having a dweet-off at a physical location! so expect many incoming dweets :D you add dweets too, and we can include it in the dweet-off :D
u/13thptr

#tornado

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New_Core

remix of d/590 by u/New_Core

function u(t) {

c.width=2e3;a=200*S(t)+300;for(b=i=500;i--;)X=1e3+a*S(i)*S(i*0.5-t)-b*C(t*.5),Y=b+a*C(i),x.lineTo(X,Y);x.stroke();

Jan 13 2017 11:57 AM UTC

}// 114/140

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u/sigveseb

now add shadows :D

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New_Core

function u(t) {

c.width=2e3;a=200*S(t)+300;for(b=i=500;i--;)x.fillRect(1e3+a*S(i)*S(i*.0065-t)-b*C(t),b+a*C(i),5,5)

Jan 13 2017 8:37 AM UTC

}// 99/140

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New_Core

function u(t) {

b=a=c.width=500;for(i=a*5;i--;)g=i%(h=b+9*S(t))>h/2?0:b,x.fillRect(g+i%13*b*2-1*i*.6+(b*8*S(t*.5))%b*2,150+i*.05,b=20+i*.05,1)

Dec 31 2016 12:13 PM UTC

}// 126/140

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u/iverjo

Awesome :D
u/iverjo

This dweet reminds me of the Windows 3.1 chess background image: http://i.imgur.com/Zv5eBRk.png
u/New_Core

#checkerboard

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New_Core

function u(t) {

if(!t)I=new Image(),I.src="http://is.gd/kjG7hF";c.width=1e3;x.drawImage(I,Math.floor(5*t%8)*184,0,184,325,-300+80*t%2e3,99,256,325)

Dec 25 2016 7:25 PM UTC

}// 131/140

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I was first thinking of doing alot of 3d rotating boxes but didnt find any good,,, ;) then I thought of reading pixels as letters and do all code I need on the picture but code got to long,, so a simple animation will do.

u/13thptr

#external
u/13thptr

#broken

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New_Core

function u(t) {

for(i=400;i--;)q=i%80,(i&1)?a=2:a=3,x.fillStyle=R(z=100*C(t+i*.12+a+.1)-q,100-z-q),x.fillRect(1e3+(q+i)*C(t+i*.12+a),50+i*2,5,5)

Dec 23 2016 1:28 PM UTC

}// 128/140

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#christmas #christmastree #tree

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