BallDemo.cpp

/*
	author: S. M. Shahriar Nirjon
	last modified: August 8, 2008
*/
# include "iGraphics.h"
# include "gl.h"

int ball_x, ball_y;
int dx, dy;

/*
	function iDraw() is called again and again by the system.
*/
void iDraw()
{
	//place your drawing codes here

	iClear();

    iSetColor(255, 100, 10);
	iFilledCircle(ball_x, ball_y, 7);

	iSetColor(255, 255, 255);
	iText(10, 10, "Press p for pause, r for resume, END for exit.");
}

/*
	function iMouseMove() is called when the user presses and drags the mouse.
	(mx, my) is the position where the mouse pointer is.
*/
void iMouseMove(int mx, int my)
{
	//place your codes here
}

/*
	function iMouse() is called when the user presses/releases the mouse.
	(mx, my) is the position where the mouse pointer is.
*/
void iMouse(int button, int state, int mx, int my)
{
	if(button == GLUT_LEFT_BUTTON && state == GLUT_DOWN)
	{
		//place your codes here
	}
	if(button == GLUT_RIGHT_BUTTON && state == GLUT_DOWN)
	{
		//place your codes here
	}
}

/*
	function iKeyboard() is called whenever the user hits a key in keyboard.
	key- holds the ASCII value of the key pressed.
*/
void iKeyboard(unsigned char key)
{
	if(key == 'p')
	{
		//do something with 'q'
		iPauseTimer(0);
	}
	if(key == 'r')
	{
		iResumeTimer(0);
	}
	//place your codes for other keys here
}

/*
	function iSpecialKeyboard() is called whenver user hits special keys like-
	function keys, home, end, pg up, pg down, arraows etc. you have to use
	appropriate constants to detect them. A list is:
	GLUT_KEY_F1, GLUT_KEY_F2, GLUT_KEY_F3, GLUT_KEY_F4, GLUT_KEY_F5, GLUT_KEY_F6,
	GLUT_KEY_F7, GLUT_KEY_F8, GLUT_KEY_F9, GLUT_KEY_F10, GLUT_KEY_F11, GLUT_KEY_F12,
	GLUT_KEY_LEFT, GLUT_KEY_UP, GLUT_KEY_RIGHT, GLUT_KEY_DOWN, GLUT_KEY_PAGE UP,
	GLUT_KEY_PAGE DOWN, GLUT_KEY_HOME, GLUT_KEY_END, GLUT_KEY_INSERT
*/
void iSpecialKeyboard(unsigned char key)
{

	if(key == GLUT_KEY_END)
	{
		exit(0);
	}
	//place your codes for other keys here
}

void ballChange(){
	ball_x += dx;
	ball_y += dy;

	if(ball_x > 400 || ball_x < 0)dx = -dx;
	if(ball_y > 400 || ball_y < 0)dy = -dy;
}

int main()
{
//    PlaySound((LPCSTR) "C:\\Users\\Public\\Music\\Sample Music\\Sleep Away.mp3", NULL, SND_FILENAME | SND_ASYNC);
//    DWORD dwError = GetLastError();

	//place your own initialization codes here.
	iSetTimer(5, ballChange);
	dx = 5;
	dy = 7;
	iInitialize(400, 400, "Ball Demo");

	return 0;
}