Computer investigatroy project c++ class 12

UNDER THE GUIDANCE OF:
MRS.JINI
SUBMITTED BY:
G.MEENALOSHINI
CLASS XII A
REGISTER NO:

Acknowledgement
In the accomplishment of this project successfully, many people have
best owned upon me their blessings and the heart pledged support.
This time I am utilising to thank all the people who have been
concerned with this project.
Firstly, I would thank god for being able to complete this project with
triumph. Then I would like to thank my parents and family members
who helped me with their valuable suggestions.
Secondly, I would like to express my special thanks of gratitude to my
computer-science facilitator Mrs.Jini as well as our principal Mrs.G.Jigi
Mol who gave me the golden opportunity to do this wonderful project
on the topic ”TETRIS ROYALE-GAME”, which also helped me in doing a
lot of research and I came to know about so many new things.
Last but not the least I would like to thank all my friends and
classmates for their guidance in various phases of the completion of
the project.
Regards,
G.Meenaloshini

TABLE OF CONTENTS
S.NO TOPICS
1. INTRODUCTION
2.
SYSTEM OBJECTIVES & AIM OF THE
PROJECT
3. HARDWARE & SOFTWARE REQUIREMENTS
4. THEORY
5. HEADER FILES INCLUDED
6. SOURCE CODE
7. OUTPUT SCREENS
8. BIBLIOGRAPHY

INTRODUCTION
Tetris game code with sounds, high scores and gravity. It is intended as a learning tool with its
extensive comments and laid out code with easy get-around and simple functions. The code
explores things such as loops and if statements, patch, save/load, GUI techniques, call-backs and
sound generation.
Description
“Tetris is a game involving dropping blocks. Points are scored for each block which comes to rest
on the gradually collecting pile of blocks. Different blocks in different orientations score different
points. The goal is to prevent the pile from reaching the top and ending the game. Whenever a row
of blocks is completely filled, it is removed and all blocks above it drop down to fill the empty
row.”
Game Walkthrough
A random sequence of tetrominoes (sometimes called "tetrads" in older versions)—shapes
composed of four square blocks each—fall down the playing field (a rectangular vertical shaft,
called the "well" or "matrix"). The object of the game is to manipulate these tetrominoes, by moving
each one sideways and rotating it by 90 degree units, with the aim of creating a horizontal line of
blocks without gaps. When such a line is created, it disappears, and any block above the deleted
line will fall. As the game progresses, the tetrominoes fall faster, and the game ends when the
stack of tetrominoes reaches the top of the playing field and no new tetrominoes are able to enter.
Game Objectives
 Complete levels by clearing a set number of lines
 Clear lines to stop stack from reaching top of screen
 Clear more lines at once for higher point values
Increasing difficulty
As players complete more levels, the difficulty of the game increases. Not only do players keep
the lines that they did not clear from the previous levels, but pieces also begin to fall faster, forcing
the player to think faster in order to clear lines.

SYSTEM OBJECTIVES & AIM OF THE PROJECT
The Tetris Effect
The Tetris Effect is a catchy term that players use to
describe the way they are inspired by the game and see
Tetriminos in everyday situations. Because Tetris, like the
real world, challenges players to make order out of chaos
using a specific organization system, the game
components translate easily into lifestyle interpretations.
Whether you're packing the trunk of your car,
loading a dishwasher, or organizing your
shelves, you're likely thinking about how each
object will fit together strategically with
minimal empty space. This is the Tetris Effect!
Learning Objectives
 Recognize spatial requirements to clear lines by rotating and dropping pieces
 Plan ahead by setting up lines for easy clearing
 Adapt to faster falling pieces
Educational Outcomes
Tetris has been one the most recognized and enjoyed video games since its creation 25 years ago. Even today the game still
enjoys popularity as it has gained new interest through platforms such as the iPhone and Facebook. Because of its extensive
social influences, many researchers have attempted measure the effects of Tetris, each with varying results.
Spatial ability is the first area of learning that most people would point to improvement. However in two experiments
conducted by Valerie Sims and Richard Mayer, researchers found that spatial expertise is highly-domain specific. The
experiment compared skilled Tetris players, non-Tetris players, and participants who played Tetris for 12 hours. Researchers
discovered that Tetris players perform better in spatial ability than non-Tetris players when using identical or similar shapes to
Tetris pieces. Tetris players were able to mentally place these shapes faster and often rotated the shapes in alternative
ways. However, Tetris and non-Tetris players displayed little difference when performing spatial ability tests with non-Tetris
shapes.
Researchers at the Mind Research Network discovered differing results. Over a three-month period, researchers studied two
groups of adolescent girls, one group consistently played Tetris while the other did not. After analyzing the girls’ MRIs after
three months, researchers found that the girls who played Tetris displayed changes in their cortex. The increase in cortical
thickness is correlated with an increase in grey matter, which leads to greater brain efficiency when completing complex tasks.

HARDWARE REQUIREMENT
COMPONENTS REQUIREMENTS
Processor Intel(R) Pentium(R) CPU N3520 @
2.16GHz
Ram 2 GB
Hard disk drive 465 GB
Graphics memory 775 MB
SOFTWARE ENVIRONMENT
COMPONENTS REQUIREMENTS
Os 64-bit operating
system(WINDOWS 7)
Graphics Intel(R) HD Graphics
Programming Language TURBO C7 (C++)
FILES GENERATED
Text file: tetris.txt
Programme file: tetris.cpp
Object file: tetris.obj
Execution file: tetris.exe

C++ is a multi-paradigm programming language that supports object-oriented programming (OOP),
created by Bjarne Stroustrup in 1983 at Bell Labs, C++ is an extension(superset) of C programming and
the programs are written in C language can run in C++ compilers.
C++ is used by programmers to create computer software. It is used to create general systems
software, drivers for various computer devices, software for servers and software for specific applications
and also widely used in the creation of video games.
USES:
C++ is used by many programmers of different types and coming from different fields. C++ is mostly used
to write device driver programs, system software, and applications that depend on direct hardware
manipulation under real-time constraints. It is also used to teach the basics of object-oriented features
because it is simple and is also used in the fields of research. Also, many primary user
interfaces and system files of Windows and Macintosh are written using C++. So, C++ is a popular,
strong and frequently used programming language of this modern programming era.
FEATURES:
The main focus remains on data rather than
procedures.
Object-oriented programs are segmented into
parts called objects.
Data structures are designed to categorize the
objects.
Data member and functions are tied together as a
data structure.
Data can be hidden and cannot be accessed by
external functions using access specifier.
Objects can communicate among themselves
using functions.
New data and functions can be easily added
anywhere within a program whenever required.
Since this is an object-oriented programming language, it follows a bottom up approach, i.e. the
execution of codes starts from the main which resides at the lower section and then based on the
member function call the working is done from the classes.

Object Oriented Programming in C++
Object Oriented programming is a programming style that is associated with the concept of Class, Objects and
various other concepts revolving around these two, like Inheritance, Polymorphism, Abstraction, Encapsulation etc.
Encapsulation
Encapsulationis a process of combining data and
function into a single unit like capsule. This is to avoid
the access of private data members from outside the
class. To achieve encapsulation, we make all data
members of class private and create public functions,
using them we can get the values from these data
members or set the value to these data members.
Abstraction:
Abstractionis a process of hiding irrelevant details from
user.
Inheritance
Inheritanceis a feature using which an object of child class acquires the properties of parent class.

Polymorphism
Function overloadingand Operator
overloading are examples of polymorphism.
Polymorphism is a feature using which an
object behaves differently in different
situation.
MODULARITY:
Modularity: the written program can be splitted up in to modules by using classes and each class can
be considered as a module.

File Handling using File Streams in C++
File represents storage medium for storing data or information. Streams refer to sequence of bytes. In
Files we store data i.e. text or binary data permanently and use these data to read or write in the form of
input output operations by transferring bytes of data. So we use the term File Streams/File handling. We
use the header file <fstream>
 ofstream: It represents output Stream and this is used for writing in
files.
 ifstream: It represents input Stream and this is used for reading
from files.
 fstream: It represents both output Stream and input Stream. So it
can read from files and write to files.
Operations in File Handling:
 Creating a file: open()
 Reading data: read()
 Writing new data: write()
 Closing a file: close()
SPECIAL OPERATIONS IN A FILE
There are few important functions to be used with file streams like:
 tellp() - It tells the current position of the put pointer.
Syntax: filepointer.tellp()
 tellg() - It tells the current position of the get pointer.
Syntax: filepointer.tellg()
 seekp() - It moves the put pointer to mentioned location.
Syntax: filepointer.seekp(no of bytes,reference mode)
 seekg() - It moves get pointer(input) to a specified
location.
Syntax: filepointer.seekg((no of bytes,reference point)
 put() - It writes a single character to file.
 get() - It reads a single character from file.

Header files included
///PreDefined HeaderFile
#include<iostream.h> Used as a stream of Input and Output.
#include<graphics.h> C graphics using graphics.h functions can be used to draw
different shapes, display text in different fonts, change colors and many more.
#include<stdlib.h> Perform standard utility functions like dynamic memory
allocation.
#include<conio.h> Perform console input and console output operations like clrscr()
to clear the screen and getch() to get the character from the keyboard.
#include<process.h> C header file which contains function declarations and macros
used in working with threads and processes.
#include<dos.h> header file of C language contains functions for handling
interrupts, producing sound, date and time functions etc.
#include<string.h> Perform string manipulation operations like strlen and strcpy.
#include<fstream.h> Contains function prototypes for functions that perform input
from files on disk and output to files on disk.
///User Defined Header File(modularity concept)
#include"C:TCbinsecond.cpp"
#include"C:TCincludekeyb.h"
#include"C:TCbinmainclas.cpp"
#include"C:TCbinlineobj.cpp"
#include"C:TCbinsqureobj.cpp"
#include"C:TCbintemp.cpp"

SOURCE CODE
#include<iostream.h> #include<graphics.h> #include<stdlib.h> #include<conio.h> #include<process.h> #include<dos.h>
#include<string.h> #include<fstream.h>
#include"C:TCbinsecond.cpp" #include"C:TCincludekeyb.h"
enum BOOL{FALSE=0,TRUE,END,OVER};
enum POS{SLEEP=1001,STANDING,LLightSleep,LLightStanding,RLightSleep,RLightStanding,SQURE,
Cross1,Cross2,Cross3,Cross4,LL1,LL2,LL3,LL4};
const short BOX=180;
const ROW=20;
const COL=15;
struct board{
short xy[20][15];
};
struct coordinate{
short x,y;
};
class MainClass
{ protected:
static board Board; coordinate ShapeCoordinate[4];coordinate ShapeTemp[4];
char Player[20];
public:
static unsigned long LineCleared,OLineClear,Score,Level;
static int Speed;
static short id;
POS pos;
MainClass();
void showarray();
void StartMainClass();
void StartObject(short);
virtual void RotateObject(){};
BOOL MoveObject(short);
BOOL DetectCollision(short,coordinate []);
virtual void PutNewObjectOnBoard(BOOL){};
void RemoveLine(int);
void MsgBox(int,char *,BOOL);
BOOL CheckBoard(int[],coordinate[]);
void CheckForLine();
void DrawBrick(int,int,int);
void UpdateScore(); ///Update Score
void DrawScreen(); ///Drawbackground ANd other nessecary thing
void SoundDrop();
void DisplayNextBrick(short);
void PreScreen();
};
board MainClass::Board;
unsigned long MainClass::LineCleared;
unsigned long MainClass::OLineClear;
unsigned long MainClass::Level;
unsigned long MainClass::Score;
short MainClass::id;
int MainClass::Speed;
#include"C:TCbinmainclas.cpp"
#include"C:TCbinlineobj.cpp"

#include"C:TCbinsqureobj.cpp"
#include"C:TCbintemp.cpp"
class ObjectCross:public MainClass
{
public:
void PutNewObjectOnBoard(BOOL bDraw);
void RotateObject();
};
class ObjectLL:public MainClass
{
public:
};
class ObjectRL:public MainClass
{
public:
};
class ObjectLLighting:public MainClass
{
public:
};
class ObjectRLighting:public MainClass
{
public:
};
void main()
{
BOOL Check;
//dynamically alloting memory
MainClass *MainObject=new MainClass;
int Counter=0;
short n;
if(MainObject==NULL)
{
cout<<"Memory Allocation Error";
exit(0);
}
setpalette(BROWN,62);
// MainObject->OLineClear=MainObject->LineCleared;
//shapes deleclartion
ObjectLine Line;

ObjectSqure Squre;
ObjectLLighting LLight;
ObjectRLighting RLight;
ObjectCross Cross;
ObjectLL Ll;
ObjectRL Rl;
MainObject->StartMainClass();
randomize();//inisiating Random no generator
MainObject=&Line;
MainObject->pos=SLEEP;
MainObject->PutNewObjectOnBoard(TRUE);
MainObject->id=0;
MainObject->StartObject(0);
int ch=0;
short ChoiceOfObject;
n=1;
MainObject->DisplayNextBrick(n);
while(ch!=EXIT)
{
if(Check==OVER)
{
cleardevice();
settextstyle(1,0,6);setcolor(RED);
outtextxy(150,100,"GAME OVER");
delay(200);
ch=EXIT;
}
if(Check==END)
{
while(kbhit()) getch();
MainObject->MsgBox(200,"",TRUE);
Check=TRUE;
for(int o=0;o<5;o++){
MainObject->CheckForLine();
delay(50);
}
if((MainObject->OLineClear-MainObject->LineCleared)>0)
{
if(MainObject->OLineClear%20==0)
{
if(MainObject->LineCleared>1){
MainObject->Level++;
MainObject->Speed=MainObject->Speed -5;
MainObject->MsgBox(210,"level Change",TRUE);
sound(100);
delay(200);
MainObject->UpdateScore();
}

}
}
switch((MainObject->OLineClear)-(MainObject->LineCleared))
{
case 1:MainObject->Score+=10;
MainObject->LineCleared++;
MainObject->MsgBox(210,"1 Line",FALSE);
MainObject->MsgBox(240,"Nice!!",FALSE);
break;
MainObject->LineCleared+=2;
MainObject->MsgBox(240,"Very Nice!!",FALSE);
break;
MainObject->MsgBox(240,"Wow!!",FALSE);
break;
MainObject->MsgBox(240,"Excellent",FALSE);
MainObject->MsgBox(270,"100 pt Bonus",FALSE);
break;
}
ChoiceOfObject=n;
MainObject->id=ChoiceOfObject;
switch(ChoiceOfObject)
{
case 0: MainObject=&Line;
MainObject->pos=SLEEP;
break;
case 1: MainObject=&Squre;
MainObject->pos=SQURE;
break;
case 2: MainObject=&LLight;
MainObject->pos=LLightStanding;
break;
case 3: MainObject=&Ll;
MainObject->pos=Cross1;
break;
case 4: MainObject=&Rl;
MainObject->pos=LL1;

break;
case 5: MainObject=&RLight;
MainObject->pos=RLightStanding;
break;
case 6: MainObject=&Cross;
MainObject->pos=Cross1;
break;
}
MainObject->PutNewObjectOnBoard(TRUE);
MainObject->StartObject(ChoiceOfObject);
n=rand()%7;
MainObject->DisplayNextBrick(n);
// MainObject->showarray();
while(kbhit()) getch();
}
if(++Counter >= MainObject->Speed) {
Counter=0;
Check=MainObject->MoveObject(KEY_DOWN);
MainObject->SoundDrop();
}
delay(8);
while(kbhit())
{
ch=getch();
switch(ch)
{
case KEY_UP:Check=MainObject->MoveObject(KEY_UP);
break;
case KEY_DOWN:Check=MainObject->MoveObject(KEY_DOWN);
MainObject->Score+=1;
break;
case KEY_RIGHT:Check=MainObject->MoveObject(KEY_RIGHT);
break;
case KEY_ENTER: MainObject->MsgBox(210,"Pause",TRUE);
getch();
MainObject->MsgBox(210,"",TRUE);
break;
case KEY_LEFT:Check=MainObject->MoveObject(KEY_LEFT);
break;
case KEY_ESC:
ch=EXIT;
//exit(0);
} //end switch

MainObject->SoundDrop();
delay(5);
} //end while
}
delete MainObject;
closegraph();
restorecrtmode();
getch();
}
MainClass::MainClass()
{ Speed=100;
}
void MainClass::StartMainClass()
{ int GD=DETECT,GM;
initgraph(&GD,&GM,"C:TCbgi");
cleardevice();
PreScreen();
LineCleared=Score=0;
DrawScreen();
UpdateScore();}
void MainClass::SoundDrop() {for(int i=5; i<10; i++)
{sound(200*i)
delay(1);
nosound();
} }
void MainClass::StartObject(short id)
{ coordinate temp[4];
for(int i=0;i<4;i++)
{
temp[i]=ShapeCoordinate[i];
}
switch(id)
{ case 0:for(i=0;i<4;i++)
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=RED;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,RED);
}
break;
case 1: for(i=0;i<4;i++)
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=GREEN;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,GREEN);
}
break;
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=BLUE;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,BLUE);
}
break;
case 3:
for(i=0;i<4;i++)
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=MAGENTA;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,MAGENTA);

}
break;
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=CYAN;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,CYAN); } break;
{ Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=BROWN;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,BROWN); }
break;
{
Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=DARKGRAY;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,DARKGRAY);
}
break;
{
Board.xy[ShapeCoordinate[i].x][ShapeCoordinate[i].y]=BLACK;
DrawBrick(60+temp[i].y*20,temp[i].x*20+40,BLACK);
}
}
}
void ObjectRL::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=1;
ShapeTemp[2].x=1;
ShapeTemp[3].x=1;
ShapeTemp[0].y=7;
ShapeTemp[1].y=5;
ShapeTemp[2].y=6;
ShapeTemp[3].y=7;
if(bDraw==TRUE)
ShapeCoordinate[i]=ShapeTemp[i];
}
void ObjectLL::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=1;
ShapeTemp[2].x=1;
ShapeTemp[3].x=1;
ShapeTemp[0].y=5;

ShapeTemp[1].y=5;
ShapeTemp[2].y=6;
ShapeTemp[3].y=7;
if(bDraw==TRUE)
}
void ObjectCross::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=1;
ShapeTemp[2].x=1;
ShapeTemp[3].x=1;
ShapeTemp[0].y=6;
ShapeTemp[1].y=5;
ShapeTemp[2].y=6;
ShapeTemp[3].y=7;
if(bDraw==TRUE)
}
void ObjectLLighting::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=1;
ShapeTemp[2].x=1;
ShapeTemp[3].x=2;
ShapeTemp[0].y=5;
ShapeTemp[1].y=5;
ShapeTemp[2].y=6;
ShapeTemp[3].y=6;
if(bDraw==TRUE)
}
void ObjectRLighting::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=1;
ShapeTemp[2].x=1;
ShapeTemp[3].x=2;
ShapeTemp[0].y=6;
ShapeTemp[1].y=6;
ShapeTemp[2].y=5;
ShapeTemp[3].y=5;
if(bDraw==TRUE)

}
BOOL MainClass::MoveObject(short key)
{
coordinate temp[4];
{
}
StartObject(7);
if((DetectCollision(key,temp)==END)||(DetectCollision(key,temp)==FALSE))
{
StartObject(id);
for(i=4;i<9;i++)
{
if (Board.xy[1][i]!=0)return OVER;
}
return(DetectCollision(key,temp));
}
switch(key)
{
case KEY_UP:
RotateObject();
break;
case KEY_DOWN:
ShapeCoordinate[0].x+=1;
break;
case KEY_RIGHT:
ShapeCoordinate[0].y +=1;
break;
case KEY_LEFT:
ShapeCoordinate[0].y-=1;
break;
}
StartObject(id);
return TRUE;
}
BOOL MainClass::DetectCollision(short key,coordinate temp1[4])
{

coordinate temp[4];
{
}
switch(key)
{
case KEY_UP: if(temp1[0].x>=19)return FALSE;
if(temp1[1].x>=19)return FALSE;
if(temp1[0].y>14)return FALSE;
if(temp1[0].y<0)return FALSE;
if(Board.xy[temp1[0].x][temp1[0].y]!=0)return FALSE;
break;
case KEY_DOWN:
if(temp[0].x==19)return END;
if(temp[0].x==0)
{
if(Board.xy[2][temp[0].y]!=0)return OVER;
}
temp[0].x+=1;
temp[1].x+=1;
temp[2].x+=1;
temp[3].x+=1;
if(Board.xy[temp[0].x][temp[0].y]!=0)return END;
//for game over
break;
case KEY_RIGHT: if(temp[0].y==14)return FALSE;
if(temp[1].y==14)return FALSE;

temp[0].y+=1;
temp[1].y+=1;
temp[2].y+=1;
temp[3].y+=1;
if(Board.xy[temp[0].x][temp[0].y]!=0)return FALSE;
break;
case KEY_LEFT: if(temp[0].y==0)return FALSE;
temp[0].y-=1;
temp[1].y-=1;
temp[2].y-=1;
temp[3].y-=1;
break;
}
return TRUE;
}
void ObjectLLighting::RotateObject()
{
coordinate temp[4];
if(pos==LLightSleep)
{
temp[0].y=temp[0].y+1;
temp[0].x=temp[0].x-2;
temp[1].y=temp[1].y;
temp[2].x=temp[2].x;
temp[3].x=temp[3].x+1;

BOOL ch=DetectCollision(KEY_UP,temp);//checking new position is valid
if(ch==FALSE)return;
pos=LLightStanding;
}
else if(pos==LLightStanding)
{
temp[0].y=temp[0].y-1;
pos=LLightSleep;
}
for(i=0;i<4;i++)
ShapeCoordinate[i]=temp[i];//sending information back to main shape
}
void ObjectRLighting::RotateObject()
{
coordinate temp[4];
if(pos==RLightSleep)
{

pos=RLightStanding;
}
else
if(pos==RLightStanding)
{
pos=RLightSleep;
}
for(i=0;i<4;i++)
}
void ObjectCross::RotateObject()
{
coordinate temp[4];
BOOL ch;
switch(pos)
{
case Cross1:

ch=DetectCollision(KEY_UP,temp);//checking new position is valid
pos=Cross2;
break;
case Cross2:
ch=DetectCollision(KEY_UP,temp);//checking new position is valid if(ch==FALSE)return;
pos=Cross3;
break;
case Cross3:
pos=Cross4;
break;
case Cross4:

pos=Cross1;
break;
}
for(i=0;i<4;i++)
}
void ObjectRL::RotateObject()
{
coordinate temp[4];
BOOL ch;
switch(pos)
{
case LL1:
pos=LL2;
break;
case LL2:

pos=LL3;
break;
case LL3:
pos=LL4;
break;
case LL4:
pos=LL1;
break;
}
for(i=0;i<4;i++)

}
void ObjectLL::RotateObject()
{
coordinate temp[4];
BOOL ch;
switch(pos)
{
case Cross1:
pos=Cross2;
break;
case Cross2:
pos=Cross3;
break;
case Cross3:

pos=Cross4;
break;
case Cross4:
pos=Cross1;
break;
}
for(i=0;i<4;i++)
}
void MainClass::PreScreen()
{ int j=40;
settextstyle(7,0,5);
char g[][2]={"T","E","T","R","I","S"," ","R","O","Y","A","L","E"};
for(int p=0;p<13;p++)
{
for(int h=480;h>=j;h-=20)
{
if(strcmp(g[p]," "))
{

setcolor((p+2)/2);
outtextxy(h,100,g[p]);
setcolor(BLACK);
outtextxy(h+20,100,g[p]);
delay(20);
}
}
j+=20;
}
setcolor(MAGENTA);
outtextxy(200,150,"COMPUTER INVESTIGATORY PROJECT");
delay(600);
cleardevice();
setcolor(YELLOW);
outtextxy(100,200,"BY MEENALOSHINI");
getch();
cout<<"Enter Player Name : ";
cin>>Player;
fstream file;
file.open("name.txt",ios::app);
file<<"name of the player:"<<Player<<endl;
file.close();
cleardevice(); }
----------------------------------------------------------------------------------------------------------------------
TEMP CPP FILE:
void MainClass::DisplayNextBrick(short next)
{
setfillstyle(1,0);
bar(410,205,495,290);
coordinate temp[4];
int i;
switch(next)
{ case 0:
temp[0].x=temp[1].x=temp[2].x=temp[3].x=0;
temp[0].y=5;temp[1].y=6;temp[2].y=7;temp[3].y=8;
setcolor(RED);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,RED);
break;
case 1: temp[0].x=0;
temp[1].x=0;
temp[2].x=1;
temp[3].x=1;
temp[0].y=5;
temp[1].y=6;

temp[2].y=5;
temp[3].y=6;
setcolor(GREEN);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,GREEN);
break;
case 2:
temp[0].x=0;
temp[1].x=1;
temp[2].x=1;
temp[3].x=2;
temp[0].y=5;
temp[1].y=5;
temp[2].y=6;
temp[3].y=6;
setcolor(1);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,BLUE);
break;
case 3:
temp[0].x=0;
temp[1].x=1;
temp[2].x=1;
temp[3].x=1;
temp[0].y=5;
temp[1].y=5;
temp[2].y=6;
temp[3].y=7;
setcolor(MAGENTA);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,MAGENTA);
break;
case 4:
temp[0].x=0;
temp[1].x=1;
temp[2].x=1;
temp[3].x=1;
temp[0].y=7;
temp[1].y=5;
temp[2].y=6;
temp[3].y=7;

setcolor(CYAN);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,CYAN);
break;
case 5:
temp[0].x=0;
temp[1].x=1;
temp[2].x=1;
temp[3].x=2;
temp[0].y=6;
temp[1].y=6;
temp[2].y=5;
temp[3].y=5;
setcolor(6);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,BROWN); break;
case 6:
temp[0].x=0;
temp[1].x=1;
temp[2].x=1;
temp[3].x=1;
temp[0].y=6;
temp[1].y=5;
temp[2].y=6;
temp[3].y=7;
setcolor(DARKGRAY);
for(i=0;i<4;i++)
DrawBrick(315+temp[i].y*20,temp[i].x*20+220,DARKGRAY);
break; } }
SECOND CPP FILE:
struct bitmap
{
short bit[20][20];
};
class BITMAP
{
void *character;
public:
// BITMAP();
void* DrawImage(bitmap &bit,int x,int y);
};
void* BITMAP::DrawImage(bitmap &bit,int x,int y)
{
int i,j;
for(j=y;j<y+20;j++)

{
for(i=x;i<x+20;i++)
{
putpixel(i,j,bit.bit[j-y][i-x]);
}
}
int size=imagesize(x,y,x+20,y+20);
character=malloc(size);
getimage(x,y,x+20,y+20,character);
putimage(x,y,character,XOR_PUT);
return character;
};
void button(int x,int y,int Color,int Color1)
{
int utri[6] = { x+1,y+1, x+19,y, x,y+19 };
int ltri[6] = { x+19,y+19, x+19,y+1, x+1,y+19 };
setcolor(BLACK);
setfillstyle(1,Color1);
fillpoly(3, utri);
setfillstyle(1,BLACK);
fillpoly(3, ltri);
setfillstyle(1,Color);
bar(x+5, y+5, x+15, y+15);
};
SQUREOBJECT CPP FILE:
class ObjectSqure:public MainClass
{
public:
};
void ObjectSqure::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=0;
ShapeTemp[1].x=0;
ShapeTemp[2].x=1;
ShapeTemp[3].x=1;
ShapeTemp[0].y=5;
ShapeTemp[1].y=6;
ShapeTemp[2].y=5;
ShapeTemp[3].y=6;

if(bDraw==TRUE)
}
LINEOBJECT CPP FILE:
class ObjectLine:public MainClass
{
public:
BOOL MoveObject(short key);
};
void ObjectLine::PutNewObjectOnBoard(BOOL bDraw)
{
ShapeTemp[0].x=ShapeTemp[1].x=ShapeTemp[2].x=ShapeTemp[3].x=0;
ShapeTemp[0].y=5;ShapeTemp[1].y=6;ShapeTemp[2].y=7;ShapeTemp[3].y=8;
if(bDraw==TRUE)
};
void ObjectLine::RotateObject()
{
coordinate temp[4];
{
}
if(pos==SLEEP)
{
pos=STANDING;
}
else if(pos==STANDING)
{

pos=SLEEP;
}
for(i=0;i<4;i++)
}
MAINCLAS CPP FILE:
void MainClass::DrawScreen()
{
setfillstyle(1,LIGHTGRAY); //setting initial color to grey
bar(50,30,370,450);
setfillstyle(1,0);
bar(56,36,364,444);
setcolor(DARKGRAY); //setting color white to give 3d look
rectangle(55,35,364,445);
rectangle(52,32,367,448);
setcolor(WHITE);
rectangle(53,33,366,447);
rectangle(50,30,369,450);
///Darwing SideBlock Containing Other Information
setcolor(DARKGRAY); //setting color white to give 3d look
rectangle(405,35,604,445);
rectangle(402,32,607,448);
line(405,290,604,290);
line(405,293,604,293);
line(405,180,604,180);
line(405,184,604,184);
line(500,180,500,290);
line(504,184,504,294);
setcolor(LIGHTGRAY);
rectangle(404,34,605,446);
rectangle(401,31,608,449);
line(405,291,604,291);
line(405,293,604,293);
line(405,181,604,181);
line(405,183,604,183);

line(501,181,501,291);
line(503,183,503,293);
setcolor(WHITE);
rectangle(403,33,606,447);
rectangle(400,30,609,450);
line(405,292,604,292);
line(402,182,604,182);
line(502,182,502,292);
//Feeding Box INformation
setcolor(CYAN);
outtextxy(460,300,"Key Help");
char *y;
if(!(y=new char[2]))
{cout<<"Insufficent Memory";
exit(1);
} //checking is required amount memory provided
y[1]=char(26);
y[2]='0';
setcolor(LIGHTMAGENTA);
settextstyle(DEFAULT_FONT,0,1);
outtextxy(420,330,y);
y[1]=char(27);
y[1]=char(24);
y[1]=char(25);
outtextxy(480,330,": Move Left ");
outtextxy(480,350,": Move Right ");
outtextxy(480,370,": Rotate Object");
outtextxy(480,390,": Drop Object");
outtextxy(430,410,"ENTER : Pause");
outtextxy(430,430,"Esc : Exit");
setcolor(0);
bar(415,325,425,400);
setcolor(RED);
settextstyle(DEFAULT_FONT,0,1);
rectangle(400,30,609,450);
setcolor(YELLOW);
outtextxy(410,40, "Score:");

rectangle(410,50,490,70);
outtextxy(520,40, "Level:");
rectangle(520,50,600,70);
outtextxy(410,90, "Speed:");
rectangle(410,100,490,120);
outtextxy(520,90, "Lines Up:");
rectangle(520,100,600,120);
outtextxy(420,140, "Player Name");
rectangle(420,150,600,170);
setcolor(BROWN);
outtextxy(410,190,"Next Brick");
outtextxy(510,190,"Message Box");
setcolor(GREEN);
outtextxy(425,155,Player);
/* outtextxy(410,50,"Player Name");
outtextxy(410,125,"No. of Lines");
outtextxy(410,200,"Total Score");
setlinestyle(0,0,1);
//the score rectangle
rectangle(449,84,591,116);
rectangle(449,159,591,191);
rectangle(449,234,591,266);
*/
setcolor(YELLOW);
rectangle(59,39,361,441);
};
void MainClass::DrawBrick(int x,int y,int color)
{
int color2=color+8;
if(color==BLACK)color2=BLACK;
if(color==DARKGRAY)color2=LIGHTGRAY;
button(x,y,color,color2);
/* int size=imagesize(x,y,x+20,y+20);
Buff=malloc(size);
getimage(x,y,x+20,y+20,Buff);
putimage(x,y,Buff,XOR_PUT);
return Buff;
*/
}
void MainClass::CheckForLine()
{

int i=ROW,j=0;
int check;
for(;i>0;i--)
{ check=0;
while(j!=COL)
{
if(Board.xy[i][j]==0) break;
check++;
if(check==15)
RemoveLine(i);
j++;
}
j=0;//making cols zero again ti begin next testing routine
}
}
void MainClass::RemoveLine(int LineNumber)
{
int i,j;
for(i=0; i<COL; i++)
Board.xy[LineNumber][i]=0;
for(i=LineNumber; i>0; i--)
for(j=0; j<COL; j++)
{
Board.xy[i][j] = Board.xy[i-1][j];
Board.xy[i-1][j]=0;
}
setfillstyle(SOLID_FILL,BLACK);
bar(60,40,360,440);
for(i=0; i<ROW; i++)
for(j=0; j<COL; j++)
if(Board.xy[i][j]!=0)
{
switch(Board.xy[i][j])
{
case RED: DrawBrick(60+j*20,i*20+40,RED);break;
case BLUE:DrawBrick(60+j*20,i*20+40,BLUE);break;
case CYAN:DrawBrick(60+j*20,i*20+40,CYAN);break;
case MAGENTA:DrawBrick(60+j*20,i*20+40,MAGENTA);break;
case DARKGRAY:DrawBrick(60+j*20,i*20+40,DARKGRAY);break;
case BROWN:DrawBrick(60+j*20,i*20+40,BROWN);break;

case GREEN:DrawBrick(60+j*20,i*20+40,GREEN);break;
}
} //
//Now doing Cleansing up And Incrementing Score
OLineClear++;
// Score+=10;
UpdateScore();
}
void MainClass::MsgBox(int x,char *string,BOOL bErase)
{
setcolor(YELLOW);
if(bErase==TRUE) bar(505,200,603,290);
settextstyle(SMALL_FONT,0,5);
outtextxy(510,x,string);
}
void MainClass::UpdateScore()
{
char string[10];
settextstyle(SMALL_FONT,0,6);
setcolor(LIGHTBLUE);
//Score
bar(411,51,489,69);
ultoa(Score,string,10);
outtextxy(420,52,string);
//Level
bar(521,51,599,69);
ultoa(Level,string,10);
//Speed
bar(411,101,489,119);
itoa((100-Speed),string,10);
//Lines Up
bar(521,101,599,119);
ultoa(LineCleared,string,10);
}

void MainClass::showarray()
{
setfillstyle(1,0);
bar(0,0,600,30);
gotoxy(40,1);
int i;
for(i=0;i<ROW;i++)
{gotoxy(40,i);
for(int j=0;j<COL;j++)
{
cout<<Board.xy[i][j]<<" ";
}
}
}

OUTPUT SCREEN
OPENING SCREEN
MAIN GAME SCREEN

FILE SCREEN
SCREEN TO ENTER
NAME AND DOB
SCREEN OF
GAME OVER

BIBLIOGRAPHY
https://www.planet-source-
code.com/vb/scripts/ShowCode.asp?txtCodeId=1086&lngWId=3 (source
code)
https://www.w3schools.com/cpp/cpp_getstarted.asp (c++ introduction)
https://www.tutorialspoint.com/cplusplus/cpp_polymorphism.html
(polymorphism)
https://www.geeksforgeeks.org/inheritance-in-c/ (inheritance)
https://beginnersbook.com/2017/09/cpp-encapsulation/ (encapsulation)
https://en.wikipedia.org/wiki/Tetris (tetris game)
https://www.studytonight.com/cpp/file-streams-in-cpp.php (file streams)
https://www.quora.com/How-is-modularity-introduced-in-c++ (modularity)
https://www.w3schools.in/cplusplus-tutorial/data-abstraction/
(abstraction)

Computer investigatroy project c++ class 12

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