Dweets by u/BalintCsala

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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BalintCsala

function u(t) {

c.width=500
for(j=3;j--;)for(i=300;i--;x.fillRect(i,50+j*65+S(T=i/35-t*3)*i/20,1,66))x.fillStyle=R(...[[H=(C(T)+1.2)*127],[,H],[,,H]][j])

Jul 17 2018 3:12 AM UTC

}// 137/140

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RGB flag with accurate lighting

u/joeytwiddle

#flag = hashtag hashflag

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BalintCsala

function u(t) {

for(;;)throw Date.now();

Jul 16 2018 12:03 PM UTC

}// 24/140

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u/fujimotos

Many kudos to you! This loop-stopper is quite a good improvement.

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BalintCsala

function u(t) {

c.width=300
with(x)for(translate(150,90),i=10*t;i-->0;fill())beginPath(fillStyle=`hsl(${i},99%,50%`),arc(i,0,4*C(i*.9)+6,0,9),rotate(-3.88)

Jun 20 2018 5:17 PM UTC

}// 139/140

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u/joeytwiddle

Lower res higher frames :)
u/Xen

love it
u/pythech

no credits given, rude :(

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BalintCsala

remix of d/8381 by u/andc2600

function u(t) {

for(i=3;i--;x.fillRect(0,360*i,1920,360))x.fillStyle=R(A=208*i,A-210,0)

Jun 4 2018 10:35 AM UTC

}// 71/140

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golfed

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BalintCsala

function u(t) {

t?(x.font="30px A",x[A="fillText"]("⚫",-17,11),x[A]("ˎ}",13,9),x.rotate(1.2566)):(c.width=110,x.translate(55,32))

May 29 2018 1:32 AM UTC

}// 113/140

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cherry flower

u/lionleaf

#flower

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BalintCsala

remix of d/7978 by u/BuRRak

function u(t) {

c.width|=0
P=(N,E,T)=>(x.font=E+"cm A",x.fillText("●",I=I+C(T)*N+9,J=J+S(T)*N-9),x.fill(),[I,J])
I=960,J=540
P(0,3,0)
P(250,2,t)
P(99,1,t*6)

May 4 2018 8:50 PM UTC

}// 140/140

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Recreated it using circles

u/BuRRak

👍

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BalintCsala

function u(t) {

c.width=280
for(i=9;i-->-1;)x.fillRect(D=i*20+(K=-(t%1)*20),D,W=20,W)
x.font="30px A"
x.fillText("●",83,82+K+(Math.max(t%1-.5,0)*2)**2*20)

May 4 2018 7:39 PM UTC

}// 138/140

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Pseudo falling physics

u/iverjo

Deserves more kudos :D
u/BirdsTweetCodersDweet

changing the last part to ... **2*25makes it more realistic, with more gravity and even a little bounce at the end... Also, removing the W variable saves you a byte :P
u/jylikangas

Actually you could use T in place of W and use it in place of every 20 to save 3 bytes. :)
u/katkip

#physics

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BalintCsala

function u(t) {

c.width=280
for(i=9;i-->-1;)x.fillRect(D=i*20+(K=(t%1)*20),D,W=20,W)
x.translate(80+K,60+K)
x.rotate(-K/6.5)
x.fillRect(0,0,W,W)

May 3 2018 8:50 PM UTC

}// 128/140

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square going up the stairs

u/Conjuror

love it and it is cool
u/Joachim

Looks good! To stop the jumpiness, replace -K/6.5 with -K/6.2

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BalintCsala

function u(t) {

for(c.width=i=400;i--;x.fillRect(C(a=(377-S(t))*i/300+t/2)*i/5+200,S(a)*i/5+110,w=1e4/(i+500),w))x.fillStyle=R(i/2,255-i,255)

Apr 22 2018 1:14 PM UTC

}// 125/140

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BalintCsala

remix of d/7678 by u/vittis

function u(t) {

for(c.width=i=500;i--;x.fillStyle=R((X=(C((i+1)%400+S(t)*2)*(1-y*y)**.5)*100)-y*S(t)*100+100),x.fillRect(250+X,100+100*y,28,28))y=(i-99)/100

Apr 16 2018 11:48 PM UTC

}// 140/140

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Ball with fake, moving lighting

u/iverjo

#sphere
u/f8f82804

#shading

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