class Mover
{
  int mr = 8; //mover radias
  PVector location;
  PVector velocity;
  PVector acceleration;
  float topspeed;
  
  Mover() 
  {
    location = new PVector(width/2,height/2);
    velocity = new PVector(0,0);
    acceleration =  new PVector(0,0);
    topspeed = 5;
  }
  
  void update(char x) 
  {
    
    if(x == 'w' || x == 'W')
    {
      acceleration.y = -10;
    }
    else if (x == 's' || x == 'S')
    {
      acceleration.y = +5;
    }
    else if (x == 'a' || x == 'A')
    {
      acceleration.x = -5;
    }
    else if (x == 'd' || x == 'D')
    {
      acceleration.x = +5;
    }
     
       
    velocity.add(acceleration);
    velocity.limit(topspeed);
    location.add(velocity); 
    
  }
  
  void gravity()
  {
   //acceleration.y = 5;   
   
   velocity.add(acceleration);  
   velocity.limit(topspeed);
   location.add(velocity); 
  }




  void display() 
  {
    stroke(0);
    fill(230,0,140);
    ellipse(location.x,location.y,16,16);
    fill(100,0,200);
    ellipse((location.x - 3 ),(location.y -3 ),3,3);
    ellipse((location.x + 3 ),(location.y -3 ),3,3);
       
  }
  
  void checkEdges() 
  {
   
    //Dealing with collision with a rectangle not the edges
    
    if(rectCircleIntersect( 30, 300, 40, 50, location.x, location.y, mr) == true)
    {    
       // X collison is working by itself.
      
          if(location.x >= (30 - mr) && location.x <= 50 )
        {
          location.x = (30 - mr); 
          
        }  
         else if(location.x < (70 + mr) )
        {
           location.x = (70 + mr);  
                      
        } 
       /////////// 
       
       // Y collison is working by itself.
                
        if(location.y >= (300 - mr) && location .y <= 325 )
        {
           location.y =  (300 - mr); 
        }
        else if(location.y < (350 + mr) )
        {
           location.y = (350 +mr);
        }
       /////////
              
    }
      
      // the edges
      
    if (location.x >= (width - mr)) 
    {
      location.x = (width - mr);
    } 
    else if (location.x <= mr) 
    {
      location.x = (mr);
    }

    if (location.y >= (height - mr)) 
    {
      location.y = (height - mr);
    } 
    else if (location.y <= mr) 
    {
      location.y = (mr);
    }
    
  }

}

boolean rectCircleIntersect(float rx, float ry, float rw, float rh, float cx, float cy, float cr)
{
  
  float circleDistanceX = abs(cx - rx - rw/2);
  float circleDistanceY = abs(cy - ry - rh/2);
  
  if (circleDistanceX > (rw/2 + cr)) { return false; }
  if (circleDistanceY > (rh/2 + cr)) { return false; }
  if (circleDistanceX <= rw/2) { return true; } 
  if (circleDistanceY <= rh/2) { return true; }
  
  float cornerDistance = pow(circleDistanceX - rw/2, 2) + pow(circleDistanceY - rh/2, 2);
  return cornerDistance <= pow(cr, 2);
}
 

Mover mover;

void setup()
{
  size(400,400);
  mover = new Mover(); 
}
void draw()
{
  
  background(230,100,00);
  rect(30, 300, 40,50);
  mover.checkEdges();
  mover.display(); 
  mover.gravity();
  
while(keyPressed)
{ 
   char x = key;
   mover.update(x);       
}