Rispetto all’applicazione originale il serpente passa sopra piuttosto che sotto se stesso
float[] x = new float[20]; float[] y = new float[20]; PImage immagine; float segLength = 10; void setup() { size(500, 350); smooth(); immagine=loadImage("dirt.jpg"); } void draw() { background(127); image(immagine, 0, 0); for(int i=x.length-2; i >= 0; i--) { dragSegment(i+1, x[i], y[i]); } dragSegment(0, mouseX - 8, mouseY - 8); } void dragSegment(int i, float xin, float yin) { float dx = xin - x[i]; float dy = yin - y[i]; float angle = atan2(dy, dx); x[i] = xin - cos(angle) * segLength; y[i] = yin - sin(angle) * segLength; //stroke(23, 79, 4, 220); pushMatrix(); translate(x[i], y[i]); rotate(angle); color c; if ( i % 3 == 1 ) c = color(0, 0, 0, 255); else if ( i % 3 == 2 ) c = color(255, 255, 0, 255); else c = color(255, 0, 0, 255); stroke( c ); strokeWeight(10); line(0, 0, segLength, 0); if(i == x.length-1) { fill( c ); noStroke(); beginShape(TRIANGLES); vertex(0, 5); vertex(-2 * segLength, 0); vertex(0, -5); endShape(); } if(i == 0) { // stroke(0, 255); noStroke(); fill(0, 255); ellipse(segLength, -2, 3, 3); ellipse(segLength, 2, 3, 3); //point(segLength, -2); //point(segLength, 2); } popMatrix(); }