mediumClass.cpp

#include <iostream>
#include<conio.h>
#include<dos.h>
#include <windows.h>
#include<time.h>

// Directories
#include "MainHeader.h"


using namespace std;



	static int carPos = WIN_WIDTH/2;
	static int score = 0;
	static const char car[4][4] = {' ', 'O', 'O', ' ',
								  'O', '*', '*', 'O', 
								  ' ', '*', '*', ' ', 
								  'O', '*', '*', 'O',}; 								  		
	static int enemyY[5];
	static int enemyX[5];
	static int enemyFlag[3];


void mediumClass::genEnemy(int ind) {
	enemyX[ind] = 17 + rand()%(33);
}

void mediumClass::drawEnemy(int ind) {
	
	if(enemyFlag[ind] == true) {
		gotoxy(enemyX[ind], enemyY[ind]);   cout << "|  |";
		gotoxy(enemyX[ind], enemyY[ind]);   cout << "0**0";
		gotoxy(enemyX[ind], enemyY[ind]+1); cout << " ** ";
		gotoxy(enemyX[ind], enemyY[ind]+2); cout << "0**0";
		gotoxy(enemyX[ind], enemyY[ind]+3); cout << " vv ";
	}

}

void mediumClass::eraseEnemy(int ind) {
	if(enemyFlag[ind] == true) {
		gotoxy(enemyX[ind], enemyY[ind]);   cout << "     ";
		gotoxy(enemyX[ind], enemyY[ind]);   cout << "     ";
		gotoxy(enemyX[ind], enemyY[ind]+1); cout << "     ";
		gotoxy(enemyX[ind], enemyY[ind]+2); cout << "     ";
		gotoxy(enemyX[ind], enemyY[ind]+3); cout << "     ";
	}
}

void mediumClass::resetEnemy(int ind) {
	eraseEnemy(ind);
	enemyY[ind] = 1;
	genEnemy(ind);
}


void mediumClass::drawBorder() {
	for(int i = 0; i < SCREEN_HEIGHT; i++) {
		for(int j = 0; j < 17; j++) {
			gotoxy(0+j, i); cout << "±";
			gotoxy(WIN_WIDTH-j, i); cout << "±";
		}
	}
	
	for(int i = 0; i < SCREEN_HEIGHT; i++) {
		gotoxy(SCREEN_WIDTH, i); cout << "±";
	}
		
}

int mediumClass::collision() {
	if((enemyY[0]) + 4 >= 23) {
		if(enemyX[0] + 4 - carPos >= 0 && enemyX[0] + 4 - carPos < 9) {
			return 1;
		}
	}
	return 0;
}


void mediumClass::updateScore() {
	
	gotoxy(WIN_WIDTH + 7, 5); cout << "Score: " << score << endl;
	
	
}



				  
void mediumClass::drawCar() {
	for(int i = 0; i<4; i++) {
		for(int j = 0; j<4; j++) {
			gotoxy(j+carPos, i+22); cout << car[i][j];
		}
	}
	
}

void mediumClass::eraseCar() {
	for(int i = 0; i<4; i++) {
		for(int j = 0; j<4; j++) {
			gotoxy(j+carPos, i+22); cout << " ";
		}
	}
	
}

void mediumClass::mediumPlay() {
	
	system("color f");
	carPos = -1 + WIN_WIDTH/2;
	score = 0;
	enemyFlag[0] = 1;
	enemyFlag[1] = 0;
	enemyY[0] = enemyY[1] = 1;
	
	system("cls");
	drawBorder();
	updateScore();
	genEnemy(0);
	genEnemy(1);
	
	gotoxy(WIN_WIDTH + 7, 2); cout << "THE CAR GAME";
	gotoxy(WIN_WIDTH + 6, 4); cout << "---------";
	gotoxy(WIN_WIDTH + 7, 12); cout << "CONTROLS:";
	gotoxy(WIN_WIDTH + 7, 13); cout << "---------";
	gotoxy(WIN_WIDTH + 2, 14); cout << "A - Left";
	gotoxy(WIN_WIDTH + 2, 15); cout << "D - Right";
	gotoxy(WIN_WIDTH + 2, 16); cout << "E - Exit";
	
	gotoxy(18, 5); cout << "Press any key to begin";
	getch();
	gotoxy(18, 5); cout << "                        ";
	
	
	while(1) {
		if(kbhit()) {
			char ch = getch();
			if( ch == 'a' || ch == 'A') {
				// Change speed of left
				if( carPos > 18 )
					carPos -= 4;
			}
			if( ch == 'd' || ch == 'D') {
				// Change speed of right
				if( carPos < 50 )
					carPos += 4;
			}
			if( ch == 'e' || ch == 'E') {
				getMenu();
				break;
			}
			if(ch==27) {
				break;
			}
		}
		
		drawCar();
		drawEnemy(0);
		drawEnemy(1);
		if ( collision() == 1) {
			gameover();
			return;
		}
		Sleep(50);
		eraseCar();
		eraseEnemy(0);
		eraseEnemy(1);

		if (enemyY[0] == 10)
			if( enemyFlag[1] == 0 )
		    	enemyFlag[1] = 1;
		    	// speed of enemy
			if(enemyFlag[0] == 1)
				enemyY[0] += 2;
				
			if ( enemyFlag[1] == 1)
				enemyY[1] += 1;
				
			if(enemyY[0] > SCREEN_HEIGHT - 4) {
				resetEnemy(0);
				score++;
				updateScore();
			}
			if( enemyY[1] > SCREEN_HEIGHT- 4) { 
				resetEnemy(1);
				score++;
				updateScore();
			}
	}
	
}