Dweets awesomed by u/cantelope

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: #Food

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katkip

function u(t) {

r=Math.random;for(k=999;k--;)X=r()*1920,Y=r()*1080,x.fillStyle=`hsl(${X+Y*C(Y/250+t)} 99%${C(Y/99+t*3)*X/25+50}%)`,x.fillRect(X,Y,20,20)

Feb 5 2019 10:21 AM UTC

}// 136/140

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#color

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katkip

remix of d/12164 by u/katkip

function u(t) {

c.width*=1;f=(X,s)=>{if(s>3)x.fillRect(960+S(X)*s,540+C(X)*s,9,9),f(X-0.02*C(t+X*T(X)),s-2)}
f(520+t,500)

Feb 5 2019 8:29 AM UTC

}// 105/140

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Electrical lighting trajectory simulation V2, high frequency current #recursive #recursion

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katkip

function u(t) {

f=(X,Y,S)=>{if(S>10)x.beginPath(),x.arc(X,Y,S,3.2,6.2),x.stroke(),f(X+S,Y+S/2,S/2),f(X-S,Y+S/2,S/2)}
x.lineWidth=9;f(960,540,450)

Feb 5 2019 8:04 AM UTC

}// 129/140

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#recursive #recursion

u/cantelope

awesome!
u/katkip

thx

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23_Skidoo

remix of d/12156 by u/23_Skidoo

function u(t) {

x.beginPath()
for(w=i=8e2;i--;x.strokeStyle=`hsl(${S(i*w+t)*360},70%,45%,.1`)x.ellipse(960+i*S(i/(30+S(t/7)*28)),540,220,i,0,0,7)
x.stroke()

Feb 5 2019 7:57 AM UTC

}// 140/140

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23_Skidoo

remix of d/12155 by u/23_Skidoo

function u(t) {

x.beginPath()
for(w=i=8e2;i--;x.strokeStyle=`hsla(${S(i+t)*-360},90%,30%,${.2*S(t/4)}`)x.ellipse(960+i*S(i/23+t),540,540,i,0,0,7)
x.stroke()

Feb 5 2019 7:34 AM UTC

}// 140/140

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23_Skidoo

function u(t) {

x.beginPath()
for(w=i=8e2;i--;x.strokeStyle=`hsla(${S(i+t/2)*-360},90%,30%,.1)`)x.ellipse(960+i*S(i/23+t),512,512,i,0,0,7)
x.stroke()

Feb 5 2019 7:28 AM UTC

}// 133/140

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LimeLaser

function u(t) {

r=Math.random
p=t?p:Array(999).fill().map(z=>({x:1920*r(),y:1080*r()}))
p.forEach((z)=>{x.fillRect(z.x,z.y,1,1);z.x+=6-12*r();z.y+=4-8*r()})

Feb 5 2019 6:19 AM UTC

}// 140/140

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Mold Growth Via 999 Random Walkers

Show more comments…
u/katkip

Wow, nice technique.
u/LimeLaser

Thank you! I used the array instantiation from a dweet I've seen before, but couldn't find again. Your dweets are awesome, btw!
u/pavel

119 r=Math.random;p=t?p:Array(1e3).fill().map(z=>[2e3*r(),1080*r()]);p.map(z=>x.fillRect(z[0]+=6-12*r(),z[1]+=4-8*r(),1,1))
u/donbright

so awesome
u/qm3ster

115 r=x=>x*Math.random() p=t?p.map(([a,b]=[r(1920),r(1080)])=>[a+6-r(12),b+4-r(8),x.fillRect(a,b,1,1)]):[...Array(999)]
u/qm3ster

115 r=x=>x*Math.random();p=t?p.map(([a,b]=[r(1920),r(1080)])=>[a+6-r(12),b+4-r(8),x.fillRect(a,b,1,1)]):[...Array(999)]
u/qm3ster

112 r=Math.random;p=t?p.map(([a,b]=[1920*r(),1080*r()])=>[a+6-12*r(),b+4-8*r(),x.fillRect(a,b,1,1)]):[...Array(999)]. How do I delete comments?

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23_Skidoo

remix of d/12119 by u/23_Skidoo

function u(t) {

t/=s=30
for(i=2e3;i--;x.fillStyle=R(s+S(t*9+i)*10,s+C(i-t*s)*90,s+S(i*31+t)*s,.2))x.fillRect(1E3*(C(t*7+i*23)+.94),825*(C(t*9-i)+.9),s,s)

Feb 5 2019 12:57 AM UTC

}// 137/140

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robbyg

remix of d/12143 by u/katkip

function u(t) {

c.width^=0;for(i=192;i--;)for(j=9;j--;x.fillStyle=`hsl(${h},50%,50%)`)x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)

Feb 4 2019 8:20 PM UTC

}// 133/140

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u/23_Skidoo

x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);for(i=192;i--;)for(j=9;j--;x.fillStyle=hsl(${h},50%,50%))x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)
u/23_Skidoo

Or, replace c.width^=0 with x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);

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DataMeta

remix of d/12139 by u/katkip

function u(t) {

with(x)for(i=50;i--;)beginPath(),fillStyle=R(o=i*5.5,o,o,.8),arc(960+C(i*3.14+i-t)*99,540+S(i*3.14-i+t)*99,i*9,0,7),fill()

Feb 4 2019 5:24 PM UTC

}// 122/140

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