Dweets awesomed by u/AnielaMW

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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jkjustjoshing

remix of d/7270 by u/New_Core

function u(t) {

i=1920;
j=Math.abs
for(;i--;)x.fillStyle=R(255,(t*600-i/3)%999,255),x.fillRect(i,500+100*j(T(i/599))*S(j(i/90)),1,40)

Mar 21 2018 1:07 AM UTC

}// 117/140

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Show more comments…
u/AnielaMW

x.fillStyle=R((t*600-i*2)%999,255,255),
u/AnielaMW

x.fillStyle=R((t*600-i/9)%999,255,255),
u/AnielaMW

Here is green, but no black background...
u/AnielaMW

x.fillStyle=R((t*600-i/9)%999,255,(t*600-i/9)%999),
u/AnielaMW

i=1920;j=Math.abs;for(;i--;)a=(t*600-i/9)%999,x.fillStyle=R(a,255,a), x.fillRect(i,500+100*j(T(i/599))*S(j(i/90)),1,40)
u/AnielaMW

still trying to get the black background
u/joeytwiddle

This is wrong but perhaps you can fix it: i=1920;j=Math.abs;for(;i--;)a=(t*600-i/9|0)%999,x.fillStyle=R(0,a,0),x.fillRect(i,a?500+100*j(T(i/599))*S(j(i/90)):0,1,a?40:999)

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alien

remix of d/7375 by u/alien

function u(t) {

w=c.width=401,h=w/2
for(i=w;i--;)x.moveTo(h,h/2),X=C(i/h)*90,Y=h/2+h/(i-t%1),x.lineTo(h*X+i,h*2),x.moveTo(0,Y),x.lineTo(w,Y)
x.stroke()

Mar 18 2018 3:58 PM UTC

}// 136/140

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Final version thanks for the advice joey

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alien

function u(t) {

w=c.width=401;h=c.height=201

for(i=0;i<w;i++){
x.moveTo(w/2,w/4);
X=(C(i/(w/4))*(20.0))
x.lineTo(h*X+i,w/2);
}
x.stroke()

Mar 18 2018 1:46 PM UTC

}// 122/140

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joeytwiddle

remix of d/7355 by u/New_Core

function u(t) {

for(i=a=360;i--;x.fillRect(i?a*S(i*a)*s+955:0,i?a*C(i)*s+535:0,k=i?s*9:2e3,k))s=20/((i+t*40)%a-a),x.fillStyle=i?`hsl(${i*5},99%,50%`:'#0001'

Mar 18 2018 5:39 AM UTC

}// 140/140

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Remixing New_Core's Starfield 3

u/joeytwiddle

#starfield

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magna

remix of d/7334 by u/Batrachus

function u(t) {

r=a=>a*Math.random()|0;for(i=w=120;i--;x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c))x.fillStyle=R((Math.random()<.01)*T,r(T=255),r(T)),b=r(w/2)

Mar 17 2018 4:13 AM UTC

}// 140/140

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#squares

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AnnanFay

remix of d/672 by u/aemkei

function u(t) {

c.width=873
b=[a=t&&b]
for(i=2e4;i--;x.fillRect(i%97*9,i/9,9,(b[i]=(i>4e3)*i%2|3==d|a[i]&2==d)*9))for(d=0,j=-99;j=j<0?j&3?~j:1:-j;)d+=a[i+j]

Mar 17 2018 3:00 AM UTC

}// 140/140

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High resolution Game of Life with a constant ground layer. It will eventually start cycling. To increase FPS swap 2e4->6e3. To hide the ground swap 4e3->5e3.

u/Jezza

Incredible!
u/zanella

I'm scared of AnnanFay. Seriously.
u/joeytwiddle

#gameoflife

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StarStep

function u(t) {

x[s='fillStyle']='#FFF2'
x[f='fillRect'](0,0,1e4,1e4)
for(i=1e3;i--;x[f](960+S(i)*q,540+C(i)*q,40,40))x[s]=`hsl(${q=(i*2%1e3*t)/2},80%,60%`

Mar 16 2018 11:27 PM UTC

}// 139/140

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StarStep

remix of d/7330 by u/yonatan

function u(t) {

x[s='fillStyle']='#0001'
x[f='fillRect'](0,0,3e3,2e3)
for(i=1e3;i--;x[f](960+S(i)*q,540+C(i)*q,5,5))x[s]=`hsl(${q=(i*4%1e3*t)/3%i},88%,70%`

Mar 16 2018 6:01 PM UTC

}// 139/140

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keithclark

function u(t) {

for(c.width=W=128,i=W*72;i--;)x.fillRect(i%W,j=i>>7,((i-64)/j+S(t)*6^C(t)*7+W+W/j)&1,j/W*2)

Mar 15 2018 12:03 PM UTC

}// 91/140

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u/Xen

love it
u/vain

nice floorcast fx

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yonatan

remix of d/2370 by u/magna

function u(t) {

for(c.width|=i=9;i--;x.fill(new Path2D('M'+[530+i*99,540-a*99,b,q=a*r<0|0,50]+` 0v${200*a+b}${q^1} -50 0`)))a=C(m=i*t),b=`a1 ${r=S(m)} 0 0`

Mar 15 2018 7:01 AM UTC

}// 139/140

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cylinders

u/yonatan

Chrome only I guess...
u/magna

Smart!
u/yonatan

#default

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