//Grass Excersize.

void setup() {
  size(500,500);
}

float joeX;
float joeDX;
float joeY;
float joeDY;
int grassX = 0;
int grassY;
int space = 5;

void drawScene() {
  background(50,150,255);
}

void drawJoe() {
  rectMode(CENTER);
  joeDX = mouseX;
  joeDY = mouseY;
  joeX += (joeX+joeDX)/30;
  joeY += (joeY+joeDY)/30;
  fill(255,50,0);
  stroke(0);
  rect(joeX,joeY,40,40);
  ellipseMode(CENTER);
  fill(255);
  ellipse(joeX-10,joeY-10,10,10);
  ellipse(joeX+10,joeY-10,10,10);
  ellipse(joeX,joeY+10,35,15);
  point(joeX-10,joeY-10);
  point(joeX+10,joeY-10);
}

void drawGrass() {
  fill(0,255,100);
  while(grassX <= width) {
    grassX += space;
    grassY = height;
    line(grassX,grassY,grassX,grassY-10);
  }
}

void draw() {
  drawScene();
  drawJoe();
  drawGrass();
}