Dweets awesomed by u/ellisk1

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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yonatan

function u(t) {

t?c.width|=0:U=V=Y=X=.1
d=X*X+Y*Y>1&&(X*U+Y*V)**.7
X+=U-=X*d
Y+=V-=Y*d-.01
x.arc(a=540,a,a,0,9)
x.arc(a+X*a,a+Y*a,40,0,9)
x.fill('evenodd')

Sep 25 2018 1:35 PM UTC

}// 139/140

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Phunky Physics

u/joeytwiddle

Fun! #bounce
u/cantelope

the last paramater of x.arc can be 7, 8, or 9 as a single digit that closes the circle.. i usually go with 7 because it's the closest integer > 2π, but it's interesting that you go with 9 usually :)
u/joeytwiddle

#physics

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Quant1um

function u(t) {

for(i=c.width=920;z=i/(s=50),i>0;i-=9){for(F=k=1,R=6;k<(h=t<<1);k++)R+=[0,1,0,-1][k%4]*(F*=z/k)*(h-1-k?1:t%1);x.lineTo(i,R*s)}x.stroke()

Sep 25 2018 11:28 AM UTC

}// 136/140

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Sine created using Taylor series

u/Quant1um

#math

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prplz

remix of d/10071 by u/prplz

function u(t) {

for(let q=33,X,Y=q,r;Y--;)for(X=59;X--;x.fillRect(X*q,Y*q,q,q))x.fillStyle=R(0,r=S((X&t^Y&t)+t*2)*80+80,r*2)

Sep 25 2018 1:14 AM UTC

}// 108/140

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Xen

function u(t) {

for(Y=i=960;i--;x.fillRect(Y+C(i-i/7+t)*Y,540+S(t+i)*540,19,19))x.fillStyle=R(Z=i/4,t*9%Z,Z*S(t))

Sep 24 2018 6:59 PM UTC

}// 97/140

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have a play with the C() and S() in fillRect

u/prplz

love it
u/joeytwiddle

Nice changing #pattern

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yonatan

remix of d/10016 by u/yonatan

function u(t) {

p=22/21
c.width|=f=(u,v,a,s,i=3)=>s<9?x.lineTo(u,v):i&&f(u+S(b=a+i*p*2)*s,v+C(b)*s,b/2,s**.87)|f(u,v,a,s,i-1)
f(z=750,0,1+t%2*p,z)
x.fill()

Sep 24 2018 3:27 PM UTC

}// 139/140

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Under the tree

u/yonatan

#organic #tree #fractal

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ellisk1

function u(t) {

with(x)for(i=8;i--;)for(j=8;j--;fill())beginPath(d=C(q=i*3)*9*q),fillStyle=R(99+d,d),arc(900+4*d+d*(v=S(j/2)),250+j*99-j*q+3*q,140+25*v,0,7)

Sep 22 2018 6:31 PM UTC

}// 140/140

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First Day of Fall!

u/sigveseb

Pretty colors :)
u/joeytwiddle

#pumpkin #food

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lionleaf

remix of d/7747 by u/lionleaf

function u(t) {

 for(c.width|=i=5;i--;x.fillText('10000?'[i],i*399,540+S(t*9+i)*99))x.font=C(t-i/9)*3e2+'px x',x.fillStyle=`hsl(${t*i*t},50%,50%`

Sep 21 2018 2:47 PM UTC

}// 129/140

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10000?!

u/katkip

Hacker
u/SuperFromND

Congrats on dweet #10,000!
u/donbright

well done. thanks for creating this.
u/lionleaf

#nsfw test

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ellisk1

function u(t) {

t?b++:x.rotate(b=.785);x.beginPath(x.fillStyle=R(q=700*C(b)**2,q,q,.4));for(i=3;i--;x.fill())x.lineTo(825+600*C((z=b-i)**9),600*S(z**7)-525)

Sep 21 2018 2:43 PM UTC

}// 140/140

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Diamond

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BalintCsala

function u(t) {

for(c.width|=i=500;i--;x.fillRect(C(k)*250+910,S(k)*99-H*S(J)*9,3,959))x.fillStyle=R(a=(S(k=i/160)+1+(H=(a=k*3+t)%2<1)*C(J=a/.32)/2)*99,a,a)

Sep 20 2018 10:28 PM UTC

}// 140/140

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Pillar, huge thanks to u/yonatan for helping with golfing

u/katkip

Looks real
u/sigveseb

Nice!
u/joeytwiddle

#model

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acorv

function u(t) {

c.width=w=100+(1+S(t*12))*260;
for(i=25;i>8;i--){
x.beginPath()
v=i%2?60:0
x.fillStyle=R(v,v,v)
x.arc(w/2,w/3.55,i*w/90,0,7);
x.fill();
}

Sep 20 2018 8:16 PM UTC

}// 138/140

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Speaker

u/katkip

Wow, that's a genius idea! I love it
u/katkip

Wow, that's a genius idea! I love it
u/yaska

I can hear sound along with it. Synthaesthetic.
u/iverjo

The sound of saturday night

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