Dweets awesomed by u/gormisdomai

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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f8f82804

remix of d/9617 by u/cantelope

function u(t) {

c.width=480;x.translate(w=240,130);x.rotate(S(t));for(i=17;i--;x.lineTo(w*.7*S(p=1.57*i-t+(g=i/4|0)*11)/(Z=2+C(p)),w*(g%2-.5)/Z));x.stroke()

Sep 6 2018 9:32 PM UTC

}// 140/140

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compound 3D rotations #d3 #cube #perspective

u/donbright

awesome
u/cantelope

neat trick :)
u/f8f82804

#wireframe

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kchplr

function u(t) {

for(c.width|=0,i=3142,n=500;i--;Y=S(i/n*(2-(.5+S(t+V)|0))),X=C(S(t)+t+i/n),x.fillRect(960+X*n+V/X,550+Y*n+V*Y,4+V*X,5))V=(T(C(i+t)))**7

Aug 4 2017 10:05 AM UTC

}// 135/140

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FireFly

remix of d/3005 by u/FireFly

function u(t) {

for(i=5e3;Z=(i--%4>1)+i/128;i%4||x.beginPath(x.fill()))X=i%128+2>>2,x.fillStyle=R(Y=S(X*X/32+Z*Z/32-X-Z-t*6)*80+99),x.lineTo(X*60,Z*35-Y)

Aug 3 2017 9:03 PM UTC

}// 137/140

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Ripples! With proper quads instead. Add +Z*X-Z*16 after X*60 for perspective projection too (brings it up to 146)

u/FireFly

Another byte can be saved with with(x), but this causes a fair bit of slowdown for me. Thanks for some golfing tips from qfox and others on the jsgolf slack :)
u/cantelope

can't stop watching. def in my top 10 favs
u/iverjo

Very impressive!

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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

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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magna

remix of d/2648 by u/New_Core

function u(t) {

for(x.fillRect(x.globalAlpha=0.05,0,i=w=2e3,w);i-=4;)s=99/((i+t*99)%w-w),x.clearRect(w*S(i*99)*s+1e3,w*C(i)*s+500,s*9,s*9)

May 2 2017 3:57 AM UTC

}// 122/140

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u/MrM@_S

you missed the 0.05, it can be a .05
u/magna

Gah! I was playing around with numbers and left it there I guess :)
u/iverjo

#stars #starfield

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magna

remix of d/2648 by u/New_Core

function u(t) {

for(x.fillRect(x.globalAlpha=0.05,0,i=w=2e3,w);i-=4;)s=99/((i+t*99)%w-w),x.clearRect(w*S(i*(t|0))*s+1e3,w*C(i)*s+500,s*9,s*9)

May 2 2017 2:58 AM UTC

}// 126/140

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New_Core

remix of d/2646 by u/magna

function u(t) {

c.width|=0;for(i=55;i--;x.lineWidth=13,x.strokeStyle='hsl('+a*30+',99%,50%)',x.stroke())x.beginPath(),x.arc(960,540,i*20,a=10*S(t+i/90),a+3)

Apr 30 2017 11:26 AM UTC

}// 140/140

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saschavoid

remix of d/1231 by u/iverjo

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=2)s=3/(9.1-(t+i/99)%9),x.beginPath(),j=i*64+S(i/1e4+t),x.lineWidth=s*s,x.arc(960,540,s*49,j,j+.6),x.stroke()

Apr 28 2017 9:22 PM UTC

}// 136/140

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Do not dwell on it if drunk.

u/iverjo

#tunnel

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saschavoid

remix of d/2585 by u/vvarr

function u(t) {

i=q=c.width=2e3
for(;i--;x.fillRect(o*C(a)*z+q/2,(r*T(b)+190)*z,z*=z/2,z))z=q/((o=2e2+(r=30+C(6*S(a=i/310-t)))*T(b=i%40/8))*S(a+=1.4*t)+710)

Apr 28 2017 11:46 AM UTC

}// 140/140

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All pray to the ondulating cone.

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