“Vie et mort des particules : avec la souris<br>” by Thomas O Fredericks
https://openprocessing.org/sketch/415566
License CreativeCommons Attribution ShareAlike
https://creativecommons.org/licenses/by-sa/3.0
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A fork of Vie et mort des particules : avec la souris<br> by Thomas O Fredericks
CC Attribution ShareAlike
Vie et mort des particules : avec la souris<br>
O Fredericks
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var tableauDeParticules = [];
var millisDeLaDerniereParticule = 0;
// SETUP
function setup() {
createCanvas(windowWidth, windowHeight);
background(100);
}
// DRAW
function draw() {
background(0);
// AJOUTER UNE PARTICULE
if ( millis() - millisDeLaDerniereParticule >= 100 ) {
millisDeLaDerniereParticule = millis();
var cote = floor( random(4) );
if ( cote == 0 ) {
// x , y , vitesseX , vitesseY
tableauDeParticules.push( new Particule( -10 , random(height) , random(0,5) , random(-5,5) ) );
} else if ( cote == 1 ) {
// x , y , vitesseX , vitesseY
tableauDeParticules.push( new Particule( width+10 , random(height) , random(-5,0) , random(-5,5) ) );
} else if ( cote == 2 ) {
// x , y , vitesseX , vitesseY
tableauDeParticules.push( new Particule( random(width) , -10 , random(-5,0) , random(0,5) ) );
} else {
// x , y , vitesseX , vitesseY
tableauDeParticules.push( new Particule( random(width) , height+10 , random(-5,5) , random(-5,0) ) );
}
}
// BOUGER ET DESSINER LES PARTICULES EXISTENTES
for ( var i = 0; i < tableauDeParticules.length ; i = i + 1 ) {
tableauDeParticules[i].bouger();
// DESSINER LES PARTICULES VIVANTES
if ( tableauDeParticules[i].vivant ) {
tableauDeParticules[i].dessiner();
} else {
// RETIRER LA PARTICULE QUI DOIT MOURIR ( LE 1 INDIQUE D'ENLEVER 1 ELEMENT)
tableauDeParticules.splice(i,1);
// RECULER L'INDEX PARCE QU'ON A ENLEVE UNE PARTICULE
i = i -1;
}
}
// DESSINER LE NOMBRE DE PARTICULES A L'ECRAN
fill(255);
text( "Particules : "+ tableauDeParticules.length , width*0.5 , height*0.5 );
}
// TUER LES PARTICULES CLIQUEES
function mousePressed() {
for ( var i = 0; i < tableauDeParticules.length ; i = i + 1 ) {
if ( dist( mouseX , mouseY , tableauDeParticules[i].x , tableauDeParticules[i].y) < tableauDeParticules[i].rayon ) {
// INDIQUER QUE LA PARTICULE DOIT MOURIR
tableauDeParticules[i].vivant = false;
}
}
}
var Particule = function(x ,y , vitesseX , vitesseY) {
this.x = x;
this.y = y;
this.vitesseX = vitesseX;
this.vitesseY = vitesseY;
this.couleur = color( random( 100, 256) );
this.vivant = true;
this.rayon = 15;
this.rotation = random(0,TWO_PI);
this.vitesseDeRotation = random(0.01, 0.1);
this.bouger = function() {
this.x = this.x + this.vitesseX;
this.y = this.y + this.vitesseY;
this.rotation = this.rotation + this.vitesseDeRotation;
// SI LA PARTICULE SORT DU CANVAS ON INDIQUE QU'ELLE DOIT MOURIR
if ( this.x + this.rayon < 0 || this.x - this.rayon > width || this.y + this.rayon < 0 || this.y - this.rayon > height) {
this.vivant = false;
}
}
this.dessiner = function() {
push();
fill ( this.couleur );
translate(this.x,this.y);
rectMode(CENTER);
rotate(this.rotation);
rect( 0 , 0 , this.rayon * 2, this.rayon * 2);
pop();
}
}
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