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swimmers
int[][] result;
float t, c;
float ease(float p) {
return 3*p*p - 2*p*p*p;
}
float ease(float p, float g) {
if (p < 0.5)
return 0.5 * pow(2*p, g);
else
return 1 - 0.5 * pow(2*(1 - p), g);
}
float mn = .5*sqrt(3), ia = atan(sqrt(.5));
void push() {
pushMatrix();
pushStyle();
}
void pop() {
popStyle();
popMatrix();
}
void draw() {
if (!recording) {
t = mouseX*1.0/width;
c = mouseY*1.0/height;
if (mousePressed)
println(c);
draw_();
} else {
for (int i=0; i<width*height; i++)
for (int a=0; a<3; a++)
result[i][a] = 0;
c = 0;
for (int sa=0; sa<samplesPerFrame; sa++) {
t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1);
draw_();
loadPixels();
for (int i=0; i<pixels.length; i++) {
result[i][0] += pixels[i] >> 16 & 0xff;
result[i][1] += pixels[i] >> 8 & 0xff;
result[i][2] += pixels[i] & 0xff;
}
}
loadPixels();
for (int i=0; i<pixels.length; i++)
pixels[i] = 0xff << 24 |
int(result[i][0]*1.0/samplesPerFrame) << 16 |
int(result[i][1]*1.0/samplesPerFrame) << 8 |
int(result[i][2]*1.0/samplesPerFrame);
updatePixels();
saveFrame("f###.gif");
if (frameCount==numFrames)
exit();
}
}
//////////////////////////////////////////////////////////////////////////////
int samplesPerFrame = 4;
int numFrames = 240;
float shutterAngle = .6;
boolean recording = false;
void setup() {
size(800, 720);
result = new int[width*height][3];
rectMode(CENTER);
fill(32);
noStroke();
}
float x, y, z, tt;
int N = 12;
float l = 42;
void swimmer(float q) {
push();
y = map(sin(TWO_PI*q), 1, -1, 0, 1);
y = lerp(-l*2*mn, l*2*mn, ease(y,4.5));
translate(0, y);
tri(ease(map(cos(TWO_PI*q), 1, -1, 0, 1), 6));
pop();
}
void tri(float q) {
push();
translate(0,lerp(-l*.25,l*.25,q));
push();
rotate(PI*5/6*q);
halfTri(q);
pop();
push();
scale(-1, 1);
rotate(PI*5/6*q);
halfTri(q);
pop();
pop();
}
void halfTri(float q) {
push();
scale(map(cos(TWO_PI*q),1,-1,1,0.85));
beginShape();
vertex(0, 0);
vertex(0, lerp(l*mn, l, q));
vertex(lerp(-l/2, -l*mn/2, q), lerp(l*mn, l*.75, q));
endShape(CLOSE);
pop();
}
float sp = 2*l;
int in;
void draw_() {
background(250);
push();
translate(width/2, height/2);
for (int i=-N; i<=N; i++) {
for (int j=-N; j<=N; j++) {
x = i*sp;
y = j*mn*sp;
if (j%2 != 0)
x += .5*sp;
tt = (t + 100 - 0.0003*dist(x,y,0,0))%1;
push();
translate(x, y);
fill(#86C986);
in = (2*i+100+3*j+(j+100)%2); // dunno lol
if(in%3 == 0)
fill(#31A7C4);
if(in%3 == 1)
fill(#561D72);
swimmer(tt);
pop();
}
}
pop();
}
@shaunlebron

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