something simple to draft something else i want to do

flashingTriangles.pde

/*
includes Point, Triangl, EqTri1 classes, as well as the drawLine method
*/

int w = 200;
int h = 200;
color c = color(255,255,0); //yellow!
Point apex;
int rad;
double halfside;
double altitude;

void setup() {
  size(w,h);
  background(0);
  frameRate(12);
  apex = new Point(w/2,h/2);
  rad = 30;
}

void draw() {
  clear();
  EqTri1 t1 = new EqTri1(apex,rad);
  t1.drawT();
  rad = (int)(Math.random()*10+10);
  halfside = rad*(Math.sin(Math.PI/3));
  altitude = rad*3/2;
  apex.xcor = (int)(Math.random()*(width-2*(halfside+1))+(halfside+1));
  apex.ycor = (int)(Math.random()*(height-2*(altitude+1))+(altitude+1));
}