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acruikshank-black.html
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<html>
<head>
<title>Art / Dev - Motion 2</title>
<script src="p5.min.js"></script>
<script>
var IMAGE_WIDTH = 640; // Don't change this.
var IMAGE_HEIGHT = 640; // Don't change this.
//may need to scale models based on different unit values
//just assume all same scale for now
var unit = 2;
o = {x:320,y:320};
rad = 200;
angle = .2;
tilt = .2;
//========= Parent Model
function setup() {
createCanvas(IMAGE_WIDTH, IMAGE_HEIGHT); // don't change this
//call all setup methods here
models = [];
setupFuncs = [setupParticle,setupModel];//everyone's setup functions will go here
drawFuncs = [drawParticle,drawModel];//everyone's draw functions will go here
//loop through for each model and init the model with it's setup function:
for(var i=0;i<setupFuncs.length;i++){
models[i] = setupFuncs[i](unit);//all sizing values: radius, magnitue, lenght, velocity, ... should be multiplied by a unit that can be controlled from the outside
}
}
function draw() {
clear();
var origins = [];
angle += .002;
var zs = []
for(var i=0;i<setupFuncs.length;i++){
var rot = angle + i*TWO_PI/setupFuncs.length
origins[i] = {
x:o.x+rad*cos(rot),
y:o.y+rad*sin(rot)*tilt,
rot:rot
};
//angle+=TWO_PI/setupFuncs.length;
zs[i] = {i:i,z:sin(rot)}
}
function sortNumber(a,b) {
return a.z - b.z;
}
zs.sort(sortNumber)
console.log
for(var i=0;i<setupFuncs.length;i++){
var ind = zs[i].i
drawFuncs[ind](models[ind],origins[ind],unit)
}
}
//=========Individual Models
function setupModel(unit){//every model has it's onw setupModel function
var m = {
hue: random(0,1),
rad: 100,
particles: [],
particleCounter: 0,
particleCount: 100
};
for (var i=0; i<m.particleCount; i++) {
var magnitude = random(0,2)*unit;//note use of unit
var angle = random(0,TWO_PI);
m.particles[i] = {
x:-1000,
y:-1000,
vx: magnitude*cos(angle),
vy: magnitude*sin(angle),
r: (2+8*pow(random(),32))*unit,//note use of unit
hue: random(-.1,0.2),
curl: 0
};
}
return m;
}
function drawModel(m,o,unit){
noStroke()
colorMode(HSB, 1)
//**
fill(.5,1,.4,0.01);
//rect(0,0,width,height);
var magnitude = random(0,2)*unit;//note use of unit
var angle = random(0,TWO_PI);
var currentParticle = m.particles[m.particleCounter];
m.particleCounter = (m.particleCounter+1) % m.particleCount;
currentParticle.x = o.x;//320//mouseX;
currentParticle.y = o.y;//100//mouseY;
currentParticle.vx = magnitude*cos(angle)
currentParticle.vy = magnitude*sin(angle)
currentParticle.curl = pow(random(-1,1),5)
m.particles.forEach(drawParticle);
//move all functions into your drawModel function (to make my job easier and avoid naming conflicts)
function calculateParticle(particle) {
particle.x += particle.vx
particle.y += particle.vy
particle.vx += particle.curl*particle.vy
particle.vy += -particle.curl*particle.vx
}
function drawParticle(particle) {
calculateParticle(particle)
fill(particle.hue,.2,0,.3)//hue,sat,bright,alpha
ellipse(particle.x,particle.y,particle.r,particle.r)
}
}
//======== River's individual stuff
function setupParticle(unit){//every model has it's onw setupModel function
//no globals! all 'global' variables must be decalred within your setup function
//and should be namespaced as part of your individual model object (m below)
var m = {};
//m.o={x:320,y:100};
m.particleCount = 50;
m.particles = [];
m.particleCounter = 0;
for (var i=0; i<m.particleCount; i++) {
var magnitude = random(0,2)*unit;//note use of unit
var angle = random(0,TWO_PI);
m.particles[i] = {
x:-1000,
y:-1000,
vx: magnitude*cos(angle),
vy: magnitude*sin(angle),
r: random(5,12)*unit,//note use of unit
hue: random(0.4,0.45),
};
}
//return the model object created in your setupModel function,
//it will be added to the models array
return m;
}
function drawParticle(m,o,unit){
//*** this was in the global draw function, include this kind of stuff in your individual drawModel function instead
noStroke()
colorMode(HSB, 1)
//**
fill(.5,1,.4,0.01);
//rect(0,0,width,height);
var magnitude = random(0,2)*unit;//note use of unit
var angle = random(0,TWO_PI);
var currentParticle = m.particles[m.particleCounter];
m.particleCounter = (m.particleCounter+1) % m.particleCount;
currentParticle.x = o.x;//320//mouseX;
currentParticle.y = o.y;//100//mouseY;
currentParticle.vx = magnitude*cos(angle)
currentParticle.vy = magnitude*sin(angle)
m.particles.forEach(drawParticle);
//move all functions into your drawModel function (to make my job easier and avoid naming conflicts)
function calculateParticle(particle) {
particle.x += particle.vx
particle.y += particle.vy
particle.vy += .01*unit
}
function drawParticle(particle) {
strokeWeight(5)
stroke(particle.hue,.5,1,0)
calculateParticle(particle)
fill(particle.hue,.5,1,0)//hue,sat,bright,alpha
ellipse(particle.x,particle.y,particle.r,particle.r)
line(o.x,o.y,particle.x,particle.y)
}
}
// =============== STOP WORKING HERE ==========================
</script>
<style>
body { padding: 0; margin: 5% 0 0; background-color: #666;}
canvas { margin: 0 auto; display:block; }
</style>
</head>
<body>
</body>
</html>