//GLOBAL VARS : available to all methods in all tabs

final int noCars = 30;                        //no of vehicles. the keyword 'final' indicates that it is a constant.
MyVehicle[] v = new MyVehicle[noCars];        //vehicle array of the size 'noCars'
float safeDistance = 15.0;                    //distance below which collision is detected                
PFont smallFont, lightFont, boldFont;         //declare font

MyImage terrain;
ArrayList myShapes = new ArrayList();

//terrain dimensions
int trnWidth = 300;
int trnHeight = 300;

//world
World w;

//The SETUP method is called once when the applet/application starts off. 
//Consider this a 'point or method of entry'
void setup()
{
  //size method declares the size of the applet window and to use the 3d 
  //libraries (P3D or OPENGL it must be declared in this size method
  size (800,700,P3D);
  
  w = new World(this,trnWidth,trnHeight,0);
  w.setupCamera(this,150);
  
  terrain = new MyImage("me.jpg", 10);
  
  for (int i = 0; i<noCars; i++)
  {
   PVector p = new PVector(random(trnWidth), random(trnHeight), 0);  
   v[i] = new MyVehicle(p, random(0,TWO_PI), random (14), 200, 200, 200); // invoke the vehicle constructor
  }
  
  smallFont = loadFont("VisitorTT1BRK-10.vlw");
  lightFont = loadFont("CenturyGothic-12.vlw");
  boldFont = loadFont("CenturyGothic-Bold-18.vlw"); 
}

//the DRAW Method is called continuously (at a certain framerate). 
//Consider this a continous LOOP
void draw()
{
 background(200);                                                     //clean up the background for every frame
 
 w.draw();                                                            //draw world (grid text etc)
 terrain.draw();                                                      //draw terrain
 
 for (int i = 0; i<noCars; i++)
  {
    if(updateWorld) v[i].update(trnWidth, trnHeight, v, frameCount,terrain);          //call the vehicle update
    v[i].draw();                                                      //call the vehicle draw
  }
  
 for (int i = 0; i<myShapes.size(); i++)
 {
   MyShape s = (MyShape)myShapes.get(i);
   s.draw();
 }
}