flappybird.cpp

/*
Presentation Date: 26/10/2021
Presentation Duration: 10 Minutes


It is expected you to demonstrate everything you have learned during this course in your final
project. It should be a fully-fledged C++ program, written entirely from the scratch by you,
satisfying the requirements specified below. Groups come up with any idea that they want for
the final project. Possible ideas include:



	Games (can be multi-player or single-player):
	Card games (e.g. Blackjack, Poker)
	Reversi
	Gomoku
	Connect Four
	Any other game



Your project should be large enough to take about 40-50 hours of coding.
It is very important that you write easily readable, well-designed code.
Submit a report, with some basic documentation and instructions on how to play your game.
Also include in this report what problems you had with your project, what the challenges
were, and what would you have done differently if you could do it again. Include your well
design code as an appendix to the report.




	Nimesh Heshan  073
	Janith Lahiu   081
	Gauri Wathsala 086
	Hiruni Hanthanagoda 101



*/
#include<iostream>
#include<conio.h>
#include<dos.h>
#include<stdlib.h>
#include<string.h>
#include <windows.h>
#include <time.h>

#define SCREEN_WIDTH 90
#define SCREEN_HEIGHT 26
#define WIN_WIDTH 70
#define MENU_WIDTH 20
#define GAP_SIZE 7
#define PIPE_DIF 45

using namespace std;
//		cout<<"±±±±±±±±±";
 
HANDLE console = GetStdHandle(STD_OUTPUT_HANDLE);
COORD CursorPosition;

int pipePos[3];
int gapPos[3];
int pipeFlag[3];
char bird[2][6] = { '/','-','-','o','\\',' ',
					'|','_','_','_',' ','>' };
int birdPos = 6;
int score = 0;

void gotoxy(int x, int y)
{
	CursorPosition.X = x;
	CursorPosition.Y = y;
	SetConsoleCursorPosition(console, CursorPosition);
}

void setcursor(bool visible, DWORD size) 
{
	if(size == 0)
		size = 20;	
	
	CONSOLE_CURSOR_INFO lpCursor;	
	lpCursor.bVisible = visible;
	lpCursor.dwSize = size;
	SetConsoleCursorInfo(console,&lpCursor);
}

void drawBorder(){ 
	
	for(int i=0; i<SCREEN_WIDTH; i++){
		gotoxy(i,0); cout<<"±";
		gotoxy(i,SCREEN_HEIGHT); cout<<"±";
	}
	
	for(int i=0; i<SCREEN_HEIGHT; i++){
		gotoxy(0,i); cout<<"±";
		gotoxy(SCREEN_WIDTH,i); cout<<"±";
	}
	for(int i=0; i<SCREEN_HEIGHT; i++){
		gotoxy(WIN_WIDTH,i); cout<<"±";
	}
}
void genPipe(int ind){
	gapPos[ind] = 3 + rand()%14; 
}
void drawPipe(int ind){
	if( pipeFlag[ind] == true ){
		for(int i=0; i<gapPos[ind]; i++){ 
			gotoxy(WIN_WIDTH-pipePos[ind],i+1); cout<<"***"; 
		}
		for(int i=gapPos[ind]+GAP_SIZE; i<SCREEN_HEIGHT-1; i++){ 
			gotoxy(WIN_WIDTH-pipePos[ind],i+1); cout<<"***"; 
		}
	} 
}
void erasePipe(int ind){
	if( pipeFlag[ind] == true ){
		for(int i=0; i<gapPos[ind]; i++){ 
			gotoxy(WIN_WIDTH-pipePos[ind],i+1); cout<<"   "; 
		}
		for(int i=gapPos[ind]+GAP_SIZE; i<SCREEN_HEIGHT-1; i++){ 
			gotoxy(WIN_WIDTH-pipePos[ind],i+1); cout<<"   "; 
		}
	}
}

void drawBird(){
	for(int i=0; i<2; i++){
		for(int j=0; j<6; j++){
			gotoxy(j+2,i+birdPos); cout<<bird[i][j];
		}
	}
}
void eraseBird(){
	for(int i=0; i<2; i++){
		for(int j=0; j<6; j++){
			gotoxy(j+2,i+birdPos); cout<<" ";
		}
	}
}

int collision(){
	if( pipePos[0] >= 61  ){
		if( birdPos<gapPos[0] || birdPos >gapPos[0]+GAP_SIZE ){
//			cout<< " HIT ";
//			getch();
			return 1;
		}
	}
	return 0;
}
void debug(){
//	gotoxy(SCREEN_WIDTH + 3, 4); cout<<"Pipe Pos: "<<pipePos[0];
	
}
void gameover(){
	system("cls");
	cout<<endl;
	cout<<"\t\t--------------------------"<<endl;
	cout<<"\t\t-------- Game Over -------"<<endl;
	cout<<"\t\t--------------------------"<<endl<<endl;
	cout<<"\t\tPress any key to go back to menu.";
	getch();
}
void updateScore(){
	gotoxy(WIN_WIDTH + 7, 5);cout<<"Score: "<<score<<endl;
}

void instructions(){
	
	system("cls");
	cout<<"Instructions";
	cout<<"\n----------------";
	cout<<"\n Press spacebar to make bird fly";
	cout<<"\n\nPress any key to go back to menu";
	getch();
}

void play(){
	
	birdPos = 6;
	score = 0;
	pipeFlag[0] = 1; 
	pipeFlag[1] = 0;
	pipePos[0] = pipePos[1] = 4;
	
	system("cls"); 
	drawBorder();
	genPipe(0);
	updateScore();
	
	gotoxy(WIN_WIDTH + 5, 2);cout<<"FLAPPY BIRD";
	gotoxy(WIN_WIDTH + 6, 4);cout<<"----------";
	gotoxy(WIN_WIDTH + 6, 6);cout<<"----------";
	gotoxy(WIN_WIDTH + 7, 12);cout<<"Control ";
	gotoxy(WIN_WIDTH + 7, 13);cout<<"-------- ";
	gotoxy(WIN_WIDTH + 2, 14);cout<<" Spacebar = jump";
	
	gotoxy(10, 5);cout<<"Press any key to start";
	getch();
	gotoxy(10, 5);cout<<"                      ";
	
	while(1){
		 
		if(kbhit()){
			char ch = getch();
			if(ch==32){
				if( birdPos > 3 )
					birdPos-=3;
			} 
			if(ch==27){
				break;
			}
		}
		
		drawBird();
		drawPipe(0);
		drawPipe(1);
		debug();
		if( collision() == 1 ){
			gameover();
			return;
		}
		Sleep(100);
		eraseBird();
		erasePipe(0);
		erasePipe(1);
		birdPos += 1;
		
		if( birdPos > SCREEN_HEIGHT - 2 ){
			gameover();
			return;
		}
		
		if( pipeFlag[0] == 1 )
			pipePos[0] += 2;
		
		if( pipeFlag[1] == 1 )
			pipePos[1] += 2;
		
		if( pipePos[0] >= 40 && pipePos[0] < 42 ){
			pipeFlag[1] = 1;
			pipePos[1] = 4;
			genPipe(1);
		}
		if( pipePos[0] > 68 ){
			score++;
			updateScore();
			pipeFlag[1] = 0;
			pipePos[0] = pipePos[1];
			gapPos[0] = gapPos[1];
		}
		
	}
	 
}

int main()
{
	setcursor(0,0); 
	srand( (unsigned)time(NULL)); 
	
//	play();
	
	do{
		system("cls");
		gotoxy(10,5); cout<<" -------------------------- "; 
		gotoxy(10,6); cout<<" |      Flappy Bird       | "; 
		gotoxy(10,7); cout<<" --------------------------";
		gotoxy(10,9); cout<<"1. Start Game";
		gotoxy(10,10); cout<<"2. Instructions";	 
		gotoxy(10,11); cout<<"3. Quit";
		gotoxy(10,13); cout<<"Select option: ";
		char op = getche();
		
		if( op=='1') play();
		else if( op=='2') instructions();
		else if( op=='3') exit(0);
		
	}while(1);
	
	return 0;
}