float left, right, x, y, vx, vy;
int kill;

void setup()
{
size(200,200);
background(0);
stroke(255);
fill(255);
smooth();

left=right=100;
x=y=100;
vx=1;
vy=0;
kill=0;
}

void draw()
{
background(0);
line(0,0,200,0);
line(0,199,200,199);

if(keyPressed)
  { if(key=='l') {right=right+1;}
    if(key=='p') {right=right-1;}
   }   
if(keyPressed)
  { if(key=='a') {left=left+1;}
    if(key=='q') {left=left-1;}
   }

panel(left, 5);
panel(right,195);

if(x==10 && (left+10>y && left-10<y))
{vx=-1*vx;
 vy=(y-left)/10;
}
if(x==190&& (right+10>y && right-10<y))
{vx=-1*vx;
 vy=(y-right)/10;
}

if(y<1+5 || y>199-5)
  {vy=-1*vy;}

x=x+vx;
y=y+vy;

ellipse(x,y,10,10);

if(x<-1)
  { fill(255,0,0);
    stroke(255,0,0);
    rect(50,100,30,30);
    x=y=100;
    vx=1;
    vy=0;
    left=right=100;
    fill(255);
    stroke(255);
    kill=1;
   }
if(x>201)
  { fill(255,0,0);
    stroke(255,0,0);
    rect(150,100,30,30);
    x=y=100;
    vx=1;
    vy=0;
    left=right=100;
    fill(255);
    stroke(255);
    kill=1;
   }

if(kill==1)
  {delay(2000); kill=0;}
else
  {delay(30);}
}

void panel(float h, float s)
{
line(s, h+10, s, h-10);
}