Hey all, just a bit of help with a project i have. They are ten cylinders and i need each one to have a seperate sound. but i think the way it is laid out at the moment they are set as one since the colors are the same. So when the user clicks on the cylinder, the colour changes, but has its on specific colour to begin with. Thanks alot


float rot = 0.0;
int sideN = 100;

void setup()
{
 size(800, 400, P3D);
 noStroke();
}

void draw()
{


 background(0);
 lights();
 for (int i = 0; i < 10; i++) {
   float xpos = ((i*70)+100);
   cylinder(25,200,sideN, xpos, height/2, i);
 }

}




void cylinder(float w, float h, int sides, float xstart, float ystart, int idx)
{
 h = h+ystart;
 float angle;
 float[] x = new float[sides+1];
 float[] z = new float[sides+1];
 float maxx= 0;
 //get the x and z position on a circle for all the sides
 for(int i=0; i < x.length; i++){
   angle = TWO_PI / (sides) * i;
   x[i] = (sin(angle) * w)+xstart;
   maxx = max(x[i], maxx);
   z[i] = cos(angle) *w;
 }
 
 if ((mouseX > xstart-25) && (mouseX < maxx+25)) {
   fill(0,255,0);
   println(idx);
 }
 else {
   fill(255,255,0);  
 }
 //draw the top of the cylinder
 beginShape(TRIANGLE_FAN);

 vertex(xstart,   -h/2,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
 }

 endShape();

 //draw the center of the cylinder
 beginShape(QUAD_STRIP);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
   vertex(x[i], h/2, z[i]);
 }

 endShape();

 //draw the bottom of the cylinder
 beginShape(TRIANGLE_FAN);

 vertex(xstart,   h/8,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], h/2, z[i]);
 }

 endShape();
}

void keyPressed()
{
 if (keyCode == UP)
 {
   sideN++;
 }
 if (keyCode == DOWN)
 {
   sideN--;
 }
}

you might want to use trace a ray from your camera/mouse pos to the world and find out which cylinder you have hit.
and play the associated sound and change the object color.

thats it