// PROGRAM ID:  hurdles.cc / The Hurdles Race Task 
// INSTALLATION:  MTSU                                         
// REMARKS:  Karel runs a mile (=8 blocks) long hurdles race.

#include <karel.h>
using namespace std;

// Function prototypes:
void AdvanceACorner();
void JumpHurdle();
void JumpUp();
void JumpDown();
void TurnRight();

int main()
{
	TurnOn();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	AdvanceACorner();
	TurnOff();
}

// Karel advances to the next corner.
void AdvanceACorner()
{
	if (frontIsClear)
		Move();
	else
		JumpHurdle();
}

// Karel jumps over the hurdle.
void JumpHurdle()
{
	JumpUp();
	Move();
	JumpDown();
}

// Karel rises to just above the height of the barrier.
void JumpUp()
{
	TurnLeft();
	Move();
	TurnRight();
}

// Karel returns to street level 1.
void JumpDown()
{
	TurnRight();
	Move();
	TurnLeft();
}

// Pivot Karel 90 degrees to right.
void TurnRight()
{
	TurnLeft();
	TurnLeft();
	TurnLeft();
}