Dweets awesomed by u/Porpr

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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andrea270872

function u(t) {

u.x=u.x+u.v||8
u.v=u.v||4
u.v*=(4<u.x&u.x<180)?1:-1
c.width=192
a=50+S(t)*50
b='fillRect'
x[b](2,a-5,3,9)
x[b](185,a-2,3,9)
x[b](u.x,a,3,3)

Mar 5 2019 4:41 PM UTC

}// 139/140

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PerfectPong for 2

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Xen

remix of d/12619 by u/Nexrem

function u(t) {

z=950;for(c.width|=i=2e3;i--;x.lineTo(z+C(i-1)*z,540+S(t+i/3)*540))x.moveTo(z+C(i)*z,540+S(t-i/.6)*540);x.stroke()

Mar 5 2019 1:24 PM UTC

}// 114/140

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u/Nexrem

Nice, I tried something similar but didnt have enough chaes to scale the timing down for a smooth animation

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pavel

remix of d/701 by u/sigveseb

function u(t) {

for(x[f='fillRect'](i=8,0,2e3,2e3);w=3*i--;)for(x.fillStyle=R(s=666/i,s/2,s/4),k=w*w;b=k--/w|0;a+b&1&&x[f]((a-t%2)*s,(b-2+S(t))*s,s,s))a=k%w

Mar 4 2019 8:47 PM UTC

}// 140/140

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More layers and a black background #improved

u/sigveseb

Nice!

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katkip

function u(t) {

c.width*=1;for(i=192;i--;)for(j=19;j-->-1;)x.fillRect(i*10,C(i/9+C(i/3+j+t*25)/9+j/9+t*C(j/3)*4)*40+j*60,10,10)

Feb 24 2019 8:29 AM UTC

}// 111/140

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#waves

u/f8f82804

#organic

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aleamb

function u(t) {

c.width=512;b=136;for(y=b;e=0.7*y,f=y-60,f*=f,y-=2;)for(m=b;m--;)d=m-70,z=S(t)*b*Math.exp(-1e-3*(f+d*d)),x.fillRect(m+e+b,-z+e+100,1,1)

Feb 14 2018 1:37 AM UTC

}// 135/140

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Shorter version: c.width=512;b=136;h=60;for(a=b*b;a--;)m=a%b-h,y=a/b-h,e=0.7*y,x.fillRect(m+e+100,S(t)*b*Math.exp(-1e-3*(y*y+m*m))+e+150,1,1)

u/iverjo

Further, 0.7 can be replaced with .7
u/aleamb

#function #p3d
u/aleamb

#math
u/aleamb

#d3

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aleamb

function u(t) {

c.width=255,x.font="30px p",!t&&(s=y=0,b=140,c.onmouseup=e=>{s++})
y<b&&(y+=a=t*t-s)
x.fillRect(b,b,30,2)
x.fillText(y>b&&a>2?'💥':'🚁',b,y)

Jan 25 2018 8:41 PM UTC

}// 138/140

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You must land the helicopter smoothly. Click on canvas to stop the fall.

Show more comments…
u/aleamb

For reset game, refresh page. i did not have space for build a reset.
u/bepisTM

oh my god this is really cool
u/lionleaf

Haha, amazing :) Awkward to reset, but I managed to land the helicopter!
u/donbright

lolo
u/donbright

top 5 anime endings
u/joeytwiddle

Oh man. I finally landed it! :-D
u/joeytwiddle

Nice #game !
u/aleamb

thanks joeytwiddle
u/katkip

Wowowowow
u/aleamb

#interactive

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aleamb

function u(t) {

for(i=s=33;a=s*s,i--;)for(d=t*1e8&1<<i;a--;)m=a%s,n=a/s,x.fillStyle=R((m^n)*70),x.fillRect(((d?s-m:m)+s*i)*3,n*3,3,3);x.drawImage(c,0,96)

Jan 24 2018 3:55 PM UTC

}// 137/140

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Building an infinite maze.

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u/aleamb

I did not have space for Math.random, so i have used the decimals from t variable multiplying by 1e8 and then extract one variable bit for true/false condition. Thus it is not true random
u/aleamb

Better said, it is worst than Math.random
u/donbright

kewl
u/aleamb

#maze
u/rep_movsd

Similar ones I did (inspired by 10PRINT)
u/rep_movsd

Similar ones I did (inspired by 10PRINT)
u/rep_movsd

https://www.dwitter.net/d/15089 and https://www.dwitter.net/d/15107

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aleamb

function u(t) {

w=c.width=127;for(a=w*w;a--;)e=a&w,g=a/w,r=3e3/(f=Math.sqrt((p=e-62)*p+(s=g-32)*s)),x.fillStyle=(f-t*w%w>0?R(r-20):R(r)),x.fillRect(e,g,2,2)

Jan 23 2018 1:47 AM UTC

}// 140/140

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u/joeytwiddle

Spooky

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