/* cursorStack.h
 * J Scott Cameron
 */
// CursorStack keeps track of all the cursors and allows them to be saved
// to allow for branching in the LSystem

#include "cursor.h"
#include <vector>

using namespace std;

class CursorStack {
public:
	
	CursorStack();
	
	vector<Cursor> vect; /* vector that holds the Cursors in the stack */
	LPDIRECT3DDEVICE8 device; /* D3D device being drawn to*/
	float angle; /* angle to be used in rotations */
	
	
	void push(); /* push a Cursor down on the stack */
	void pop(); /* pop a Cursor off the stack */
	
	vector<Cursor>::reverse_iterator getTop();
	/* pointer to the cursor on the  top of the stack */

	void updateCursor(); /*update the cursor */
	void setDevice(LPDIRECT3DDEVICE8); /* set the device field */
	void reset(); /* empties the stack and sets the top stack to
				   * the identity matrix */
	
	void interpretString(string); /*draws the given graphical
								   * L-System */
	void forwardDraw(); /* move the top cursor forward a unit and
						 * draw along that path */
	void forwardNoDraw(); /* move the top cursor forward a unit*/
	void rotXplus(); /* rotate positively in the X-axis */
	void rotXminus(); /* rotate negatively in the X-axis */
	void rotYplus(); /* rotate positively in the Y-axis */
	void rotYminus();/* rotate negatively in the Y-axis */
	void rotZplus(); /* rotate positively in the Z-axis */
	void rotZminus();/* rotate negatively in the Z-axis */
	
};