Random dweets | Dwitter

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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jylikangas

function u(t) {

t?i=t*9|0:c.width=-1
r=i<10?C(4/i)*89:i
x.fillStyle=R(r*7,r*3,y=i*9)
x[f='fillRect'](150-r,y,r*2,i-11)
x[f](y-99,i&&98,s=i?-9:1e3,s-y*y%49)

Nov 30 2018 4:12 PM UTC

}// 139/140

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We built this city on synthwave

u/magna

Whoa!
u/aleamb

wow!!!
u/aleamb

#city #landscape #stylish #eighties
u/aleamb

#waitforit
u/katkip

Awesome

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donbright

remix of d/1816 by u/SpecialAgent

function u(t) {

t?Δ=[]:P=[99,0,0,0,1,0,0,.6]
for(Q=i=4;i--;)Q+=(Δ[i]=P[(2+i)%4]-P[i])**2/2
for(j=4;j--;)x.fillRect(P[i=j*2],P[i+1],2,2),P[j]+=P[j+4]+=Δ[j]/Q

Mar 24 2017 11:16 PM UTC

}// 140/140

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Quickstart - alter numbers in P for fun patterns. Long description - this is a simulation of two body gravitational motion using a simplified form of Calculus.

u/donbright

combine F=ma with F=GM1M2/R^2 except that G=1, M1=1, M2=1 and r^2 is r
u/donbright

Explanation here https://www.patreon.com/posts/simulating-in-…
u/donbright

oh btw P[x1,y1,x2,y2,xv1,yv1,xv1,yv2] where 1,2 = object 1,2, x,y=position, v = velocity initial
u/codeslaw

This is incredible!
u/donbright

#physics

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katkip

function u(t) {

c.width*=1;for(i=99;i--;)x.beginPath(),x.ellipse(960,540+i*.8,300+S(t)*59,600-i*(1+S(t)/2),3.14/2,0,7),x.stroke()

Aug 19 2019 10:23 AM UTC

}// 113/140

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dish

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kipkat

remix of d/3646 by u/kipkat

function u(t) {

for(w=i=c.width|=0;i--;x.fillRect(w/2+S(p=(944+S(t))/2e3*i+C(t))*i/5-s*10,540+C(p)*i/4-s*1,s,s))x.fillStyle=R(s=Math.min(w/i,8)*18,0,0,.1)

Dec 18 2017 4:36 PM UTC

}// 138/140

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rodrigo.siqueira

remix of d/25504 by u/taupelink

function u(t) {

for(m=4e3;m--;x.fill())i=m%180,j=m>>4,x.beginPath(x.fillStyle=R(q=i**(j/i-S(t)/4),j,i,1.2*q/i)),x.arc(m*m%2e3,i*m%2e3,i,i,m%3.7+i+S(m-t*3))

May 17 2022 1:08 PM UTC

}// 139/140

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Post-geometric neo-bauhaus after-expresionism kinetic art

u/taupelink

Nice! I plan to try shrinking the radius and seeing what kind of still images it can converge to
u/taupelink

(or anyone else is free to try doing that, of course!)

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Xen

remix of d/3424 by u/magna

function u(t) {

x.rotate(S(t/9)*1e-4);x.translate(C(t)*1e-4,C(t/3));for(i=2e3;i--;x.fillStyle=R(T=S(i%t)*99,T/2,T*2),x.fillRect(i,0,1,1));x.drawImage(c,t,0)

Oct 31 2017 8:50 PM UTC

}// 140/140

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tried to time the spin :-P

u/Xen

about 17 seconds on this computer.

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buddybearalex

function u(t) {

eval(unescape(escape`𪑦𚁴🀱𩐭𞐩𮱰🐲𜀴𞀻𫠽𜑽𩐽𜠵𝐻𞱸𛡦𪑬𫁓𭁹𫁥👒𚁥𛑔𚁴𚱮𚐪𩐬𩐭𥀨𭀫𫠩𛁥𚱔𚁴𚱮𚐪𩐬𜐯𚁰𛰸𚐩𞱸𛡦𪑬𫁒𩑣𭀨𜡥𜰪𣑡𭁨𛡲𨑮𩁯𫐨𚐬𜡥𜰪𣑡𭁨𛡲𨑮𩁯𫐨𚐬𬀬𬀩𞱣𛡳𭁹𫁥𛡦𪑬𭁥𬠽𘡢𫁵𬠨𜱶𪀩𪑮𭡥𬡴𚀢𞱩𩠨𫠥𜡥𜠽🐰𚑻𬀯🐲𯐻𫠫🐱`.replace(/u../g,"")))

Sep 1 2024 10:31 PM UTC

}// 139/140

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nebula

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rodrigo.siqueira

remix of d/33373 by u/tzador

function u(t) {

for(c.width%=i=2e4;X=S(i*i+t),Y=S(i),Z=S(i**3),V=C(t)*X-S(t)*Z,W=S(t)*X+C(t)*Z-20+C(t)*5,i--;)x.fillRect(960+6e3*V/W,6e3*Y/W+3e4/W+2e3,3,3)

Feb 21 2025 6:15 PM UTC

}// 139/140

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Rotating particle cube

u/joeytwiddle

#cube

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katkip

function u(t) {

for(i=2e3;i--;)x.fillStyle=R(z=100+C(i*2.3+t*39)*100,z,z*S(t+i)),x.beginPath(),x.ellipse(960+S(i*2+t)*i,540+C(i*2+t)*i,19,49,t,0,7),x.fill()

Oct 29 2019 6:41 PM UTC

}// 140/140

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Bee spiral

u/Xen

smooooth

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rodrigo.siqueira

function u(t) {

c.width+=0
for(i=3e3;i--;){
 K=i&4+S(t)*5
 X=S(i)*K+2*S(2*i)*(i%2)
 Y=C(i)*K-2*C(2*i)*(i%2)
 x.fillRect(960+X*50,640+Y*50,9,9)
}

Apr 1 2019 6:22 PM UTC

}// 128/140

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Trinity - The Human, The Machine, The Intelligence. Based on The Way of the Future Church logo (Artificial Intelligence Religion). #sacredgeometry

u/andrea270872

#spirograph ? :) Cool