Dweets by u/robbyg

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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robbyg

function u(t) {

for(j=20,h=96;h--;)for(v=54;v--;)x.fillStyle=R(z=(T(t-h*v)+1)*j,z/2,z*4),x.fillRect(h*j,v*j,j,j)

Jul 16 2018 6:34 PM UTC

}// 96/140

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u/DataMeta

I love it!
u/aleamb

awesome!

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robbyg

remix of d/8828 by u/UnacceptableUse

function u(t) {

for(i=12;i--;)with(x)beginPath(),strokeStyle=`hsla(${S(i+t/9)*360},50%,50%,.2`,arc(t*90%2e3-40,i*99+S(t)*99,50,0,7),stroke()

Jul 13 2018 4:02 PM UTC

}// 124/140

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robbyg

function u(t) {

for(s=h=60;h--;)for(v=18;v--;)x.fillStyle=`hsl(${S(t+h/6-v/9)*180},50%,50%`,x.fillRect(h*s,v*s,s,s)

Jun 21 2018 8:04 PM UTC

}// 99/140

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robbyg

function u(t) {

with(x){drawImage(c,-40,9,w=2e3,h=1080),fillStyle=R(),fillRect(0,0,w,9);for(i=h;i--;)fillStyle='#049',fillRect(Math.random()*w,0,4,9)}

Jun 15 2018 8:21 PM UTC

}// 134/140

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This one makes me fairly uncomfortable.

u/rep_movsd

#underrated

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robbyg

function u(t) {

c.width|=0,v=500;with(x)moveTo(h=t*v%2e3,v),lineTo(h+C(a=Math.abs(S(t*9)))*99,v+S(a)*99),arc(h,v,99,a,-a),fillStyle='#fe0',fill()

Jun 15 2018 5:30 PM UTC

}// 129/140

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#pacman

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robbyg

remix of d/8103 by u/robbyg

function u(t) {

x.fillText('╲╱'[new Date%2],t*600%2e3,t*10/3)

Jun 14 2018 9:42 PM UTC

}// 45/140

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#short #maze

u/robbyg

Only 7 characters longer than 10 PRINT CHR$(205.5+RND(1)); : GOTO 10 ;)
u/Xen

x.fillText('╲╱'[1+S(t*t)|0],t*600%2e3,t/.3)

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robbyg

remix of d/8582 by u/robbyg

function u(t) {

t&&x.drawImage(c,0,3)
for(Z=i=360;i--;x.fillRect(i*18-C(t+t-S(i/9))*Z-Z,0,Z,3))x.fillStyle=`hsl(${(S(i/3+t)+9)*4},${z=25+i%55}%,${z*.8}%)`

Jun 13 2018 1:29 PM UTC

}// 138/140

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Dunes.

u/magna

I bet p01 will come and add a camel to this.
u/lionleaf

Wow, that's really nice! #dunes #sand #desert
u/zanella

But the function names are already in camel case. #rimshot
u/joeytwiddle

#landscape

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robbyg

remix of d/8556 by u/Xen

function u(t) {

t&&x.drawImage(c,0,3)
for(Z=i=360;i--;x.fillRect(i*9-C(t+t-S(i/19))*Z-Z,0,Z,3))x.fillStyle=`hsl(${S(i)*Z},${z=25+i%55}%,${z*.8}%)`

Jun 12 2018 9:12 PM UTC

}// 130/140

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u/Xen

looks tasty, makes me hungry!
u/joeytwiddle

Yes, yummy. #rainbow

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robbyg

function u(t) {

t||(X=[...Array(50).keys()],Y=[...X]);for(i=50;i--;)h=X[i],x.fillRect(X[i]=950+(S(1*Y[i])-C(2*h))*440,Y[i]=550+(S(3*h)-C(4*Y[i]))*230,5,5)

Jun 8 2018 5:53 PM UTC

}// 138/140

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Peter de Jong attractor. Changing the 1, 2, 3, 4 multipliers in the sine/cosine functions changes the shape.

u/robbyg

#attractor
u/rodrigo.siqueira

Robbyg, here is a smaller version with higher resolution. Same equation, no need to create array: t||(h=X=Y=0);for(i=950;i--;) X=950+(S(1*Y)-C(2*h))*440, Y=550+(S(3*h)-C(4*Y))*230, h=X,x.fillRect(X,Y,1,1)

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robbyg

function u(t) {

c.width|=0;for(i=214;i--;)x.fillRect(i*9,0,9,(S(i+t)+1)*540)

Jun 4 2018 6:41 PM UTC

}// 60/140

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#short

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