#include <allegro.h>
#include <cstdlib>
#include <time.h>
int ball_x = 320;
int ball_y = 240;
int ball_tempX = 320;
int ball_tempY = 240;
int p1_x = 20;
int p1_y = 210;
int p1_tempX = 20;
int p1_tempY = 210;
int p2_x = 620;
int p2_y = 210;
int p2_tempX = 620;
int p2_tempY = 210;
time_t secs; //The seconds on the system clock will be stored here
 //this will be used as the seed for srand()
int dir; //This will keep track of the circles direction
 //1= up and left, 2 = down and left, 3 = up and right, 4 = down and
right
BITMAP *buffer; //This will be our temporary bitmap for double buffering
void moveBall(){
 ball_tempX = ball_x;
 ball_tempY = ball_y;
 if (dir == 1 && ball_x > 5 && ball_y > 5){

 if( ball_x == p1_x + 15 && ball_y >= p1_y && ball_y <= p1_y + 60){
 dir = rand()% 2 + 3;
 }else{
 --ball_x;
--ball_y;
 }

 } else if (dir == 2 && ball_x > 5 && ball_y < 475){
 if( ball_x == p1_x + 15 && ball_y >= p1_y && ball_y <= p1_y + 60){
 dir = rand()% 2 + 3;
 }else{
 --ball_x;
++ball_y;
 }
 } else if (dir == 3 && ball_x < 635 && ball_y > 5){
 if( ball_x + 5 == p2_x && ball_y >= p2_y && ball_y <= p2_y + 60){
 dir = rand()% 2 + 1;
 }else{
 ++ball_x;
--ball_y;
 }
 } else if (dir == 4 && ball_x < 635 && ball_y < 475){
 if( ball_x + 5 == p2_x && ball_y >= p2_y && ball_y <= p2_y + 60){
 dir = rand()% 2 + 1;
 }else{
 ++ball_x;
++ball_y;
 }
 } else {
 if (dir == 1 || dir == 3) ++dir;
 else if (dir == 2 || dir == 4) --dir;
 }

 acquire_screen();
 circlefill ( buffer, ball_tempX, ball_tempY, 5, makecol( 0, 0, 0));
 circlefill ( buffer, ball_x, ball_y, 5, makecol( 128, 255, 0));
 draw_sprite( screen, buffer, 0, 0);
 release_screen();

 rest(5);
}
void p1Move(){
 p1_tempY = p1_y;
 if( key[KEY_W] && p1_y > 0){

 --p1_y;

 } else if( key[KEY_S] && p1_y < 420){

 ++p1_y;

 }

 acquire_screen();
 rectfill( buffer, p1_tempX, p1_tempY, p1_tempX + 10, p1_tempY + 60, makecol ( 0,
0, 0));
 rectfill( buffer, p1_x, p1_y, p1_x + 10, p1_y + 60, makecol ( 0, 0, 255));
 release_screen();

}
void p2Move(){
 p2_tempY = p2_y;
 if( key[KEY_UP] && p2_y > 0){

 --p2_y;

 } else if( key[KEY_DOWN] && p2_y < 420){

 ++p2_y;

 }

 acquire_screen();
 rectfill( buffer, p2_tempX, p2_tempY, p2_tempX + 10, p2_tempY + 60, makecol ( 0,
0, 0));
 rectfill( buffer, p2_x, p2_y, p2_x + 10, p2_y + 60, makecol ( 0, 0, 255));
 release_screen();

}
void startNew(){
 clear_keybuf();
 readkey();
 clear_to_color( buffer, makecol( 0, 0, 0));
 ball_x = 320;
 ball_y = 240;
 p1_x = 20;
 p1_y = 210;
 p2_x = 620;
 p2_y = 210;
}
void checkWin(){
 if ( ball_x < p1_x){
 textout_ex( screen, font, "Player 2 Wins!", 320, 240, makecol( 255, 0, 0),
makecol( 0, 0, 0));
 startNew();
 } else if ( ball_x > p2_x){
 textout_ex( screen, font, "Player 1 Wins!", 320, 240, makecol( 255, 0, 0),
makecol( 0, 0, 0));
 startNew();
 }

}
void setupGame(){
 acquire_screen();
 rectfill( buffer, p1_x, p1_y, p1_x + 10, p1_y + 60, makecol ( 0, 0, 255));
 rectfill( buffer, p2_x, p2_y, p2_x + 10, p2_y + 60, makecol ( 0, 0, 255));
 circlefill ( buffer, ball_x, ball_y, 5, makecol( 128, 255, 0));
 draw_sprite( screen, buffer, 0, 0);
 release_screen();

 time(&secs);
 srand( (unsigned int)secs);
 dir = rand() % 4 + 1;

}
int main(){
 allegro_init();
 install_keyboard();
 set_color_depth(16);
 set_gfx_mode( GFX_AUTODETECT, 640, 480, 0, 0);

 buffer = create_bitmap( 640, 480);

 setupGame();

 while( !key[KEY_ESC]){
 p1Move();
 p2Move();
 moveBall();
 checkWin();

 }

 return 0;
}