Top 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=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

remix of d/7410 by u/fujimotos

function u(t) {

for(c.width=i=640;i--;)x.fillRect(0,0,-25,-80,x.setTransform(K=C(z=Math.max(Math.min(H=i/5-t%.6-3,0),-1)),-S(z),S(z),K,200*(H+2),250))

Mar 22 2018 2:54 PM UTC

}// 135/140

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BalintCsala

function u(t) {

t||x.translate(960,0)
for(X=100;X--;x.fillRect(X-50,t*60+S(t)*99,2,3))x.fillStyle=X>44&&X<54&&t%1<.5?"#fff":"#000"
x.scale(s=1.005,1.0005)

Sep 20 2018 3:29 PM UTC

}// 138/140

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road

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BalintCsala

remix of d/8880 by u/BalintCsala

function u(t) {

c.width=500
for(i=900;i--;x.fillRect(i/3|0,50+i%3*65+S(T)*i/60,1,66))H=(C(T=i/99-t*3)*i/900+1.2)*127,x.fillStyle=R(i%3||H,i%3-1||H,i%3-2||H)

Jul 17 2018 3:39 PM UTC

}// 140/140

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Improved it a bit

u/iverjo

#flag

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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

function u(t) {

c.width=500
for(x.scale(i=5,5);i--;k=S(t*5),x[H]("⚪",S(T=(i?k>0:k<0)?k:0)*20+23+i*42,C(T)*20+30))x[H="fillText"]("⚪",30+i*7,50)

Sep 7 2018 8:45 AM UTC

}// 127/140

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Newton's cadle

u/fujimotos

#physics

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BalintCsala

function u(t) {

c.width=25
x.fillText("Hello",1.5,8)
d=x.getImageData(0,0,w=30,9).data
s=""
for(i=0;i<w*9;i++,i%w||(s+=`
`))s+=(d[i*4+3]>90)?"▮":"　"
throw s

Sep 1 2018 12:19 AM UTC

}// 140/140

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u/katkip

That's awesome!

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BalintCsala

function u(t) {

with(x)t?k-=.1:arc(0,0,370,0,7,translate(960,540,k=2,fillStyle="#080")),font="8em A",k<0&&rotate(.314,k=2),fill(fillText("🌳",-70,k*50-395))

Aug 27 2018 8:05 PM UTC

}// 139/140

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u/Xen

love it
u/katkip

haha nice
u/katkip

arc(0,0,285 looks better for a mini-planet
u/joeytwiddle

Remix: https://codegolf.tk/a/282

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BalintCsala

remix of d/7648 by u/firegodjr

function u(t) {

c.width=200
r=1.57
for(w=2;w--;x.stroke())for(s=5;s--;)for(i=2;i--;)x.lineTo(C(A=t+(i+s+w)*r)*50/(z=S(A)/3+1)+100,50+(s%2*60-30)/z)

Apr 16 2018 8:41 AM UTC

}// 131/140

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Golfed it a bit and

u/BalintCsala

added perspective
u/firegodjr

Excellent :D
u/iverjo

#cube

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BalintCsala

function u(t) {

c.width=500
for(i=3;i--;)for(j=99;j--;)(x.fillStyle=`hsl(${i*120},99%,${60+(H=S(t*2+(j/20))*9*(1-j/120))}%`,x.fillRect(50+j,50+i*20+H,1,23))

Mar 26 2018 4:14 PM UTC

}// 140/140

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Waving flag (of something) with shading

u/joeytwiddle

Nice work! I managed shading and colours before, but not both together. d/3161
u/iverjo

#flag

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