// Example 5-9: Simple Gravity

float x = 00;   // x location of square
float y = 0;     // y location of square

float speed = 0;   // speed of square
int xspeed=2; //speed going across

// A new variable, for gravity (i.e. acceleration).   
// We use a relatively small number (0.1) because this accelerations accumulates over time, increasing the speed.   
// Try changing this number to 2.0 and see what happens.
float gravity = 0.5;  
float rot=0;
void setup() {
  size(1280,1024);

}

void draw() {
  background(255);
println("x is " + x);
println("xspeed is  " + xspeed);
println("y= " +y);
println("speed is  " + speed);
println();
  
  // Display the image
  PImage b;
  b = loadImage("mad_200.jpg");
//image(b, x, y);

//ATTEMPT TO ROTATE PASTEDD HERE

// Translate and rotate
  translate(x,y);
  rotate(rot);
  
  // Images can be animated just like regular shapes using variables, translate(), rotate(), and so on.
  image(b,0,0); 
  
  // Adjust variables for animation
  x += 1.0;
  rot += 0.02;
  if (x > width+b.width) {
    x = -b.width;

//end of rotation algorithm
  }//end of draw













if (x>1280 || x<0)
{
xspeed=xspeed*-1;
}
x=x+xspeed;
  y=y+speed;
  // Add gravity to speed.
  speed = speed + gravity;
  
  // If square reaches the bottom
  // Reverse speed
  if (y > height-200) {
    // Multiplying by -0.95 instead of -1 slows the square down each time it bounces (by decreasing speed).  
    // This is known as a "dampening" effect and is a more realistic simulation of the real world (without it, a ball would bounce forever).
    speed = speed * -0.95;  
  }
}