Algorithmic and Problem Solving

8/2/2019 Algorithmic and Problem Solving

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Ha Le Do Page 0

Introducing to

programming,algorithmic and problem

solvingTUTOR : MOHAMMED

This is the first weekly submission due to the first lab activity

of 2012 year. This document contain the the output and the

source code for all of the three task which are required to

finish. Also there is the answer to the questions of

HouseDrawing task and evidence to support the answer.

There is one more extra task that is finished, the extension

drawing base on the HouseDrawing task.

Student : Ha Le Do6/3/2012


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Introducing to programming, algorithmic and problem solving

1

ALGORITHMIC AND PROBLEM SOLVING , INTRODCTION TO

PROGRAMMING

1/. HELLO WORLD EXTENSION

Beside putting in the code for the output of the text hello world , I have a test to run on the

output of numeric character and even calculation. For the part of calculation, the aim for the

output is not number becasue this is not programming for calculation but only for the reliability

of the system. Therefore if you input a math calculation with an answer into the system will

give the system the answer is true or false . In this case the input is 1+1=2 therefor the

output is True.

Source code:

program HelloWorld;

begin

WriteLn('Hello World');

WriteLn( 156);

WriteLn ( 1 + 1 = 2);

end.

Output:


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Build script for HelloWorld.pas

#!/bin/sh

echo "Building my HelloWorld program"

fpc -S2 HelloWorld.pas

echo "Done!"

This code is used in a bash file. Which is allow to manage and compile one or more pas file in

just one single step. It just simply putting in the fpc-S2 step for all the file in the bash file then

simply compile the bash file and all the pas file which are linked to the bash file will be

compiled. This will save time but will put a lot of memory to function.


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3/.HOUSE DRAWING

Programmings sequence:

Programmings sequence is one the of the most important and basic structure of any

programming language. It will allow the programmer decide the order of any procedure or

action which is made within the the source code. A sequence of action is how the program

work and the way you put the actions in the order will decide which task will be done first and

which will be done at last.

The sequence in programming language usually put the first action above the second one and

go on until the last action. Therefore if theres been a change occured in the sequence, the

program will change the procedure and therefore the output will be different. The output is

depended on the order of the each action therefore it will be different if the actions order has

been changed. This following example have been demonstrated on the program HouseDrawing:

BEFORE begin

OpenAudio();

OpenGraphicsWindow('Saya', 800, 600);

LoadDefaultColors();

ClearScreen(ColorWhite);

FillEllipse ( ColorGreen, 0, 400, 800, 400 );

FillRectangle( ColorBlue, 300, 300, 200, 200);FillTriangle(ColorRed, 250, 300,

400, 150,

550, 300);

FillRectangle (ColorRed, 300, 350, 50, 50);


AFTER

(take a

look at

the

changeof

order)




FillRectangle( ColorBlue, 300, 300, 200, 200);

FillEllipse ( ColorGreen, 0, 400, 800, 400 );FillTriangle(ColorRed, 250, 300,

400, 150,

550, 300);


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BEFORE FillRectangle (ColorGrey, 680, 400, 50, 100);

FillCircle ( ColorGreen, 702, 350, 70);

RefreshScreen();

Delay(15000);

CloseAudio();

ReleaseAllResources();

AFTER FillCircle ( ColorGreen, 702, 350, 70);

FillRectangle (ColorGrey, 680, 400, 50, 100);

RefreshScreen();

Delay(15000);

CloseAudio();


Statement : In a programming system , statement is used to declare a word and make it into an

action. Sometimes its a basic statement which is existed already for the program. Sometime

the programmer have to declare it at the beginning of the coding phase to make it available

through the programming.

Procedure : In a program, there could be a lot of actions that are required in 1

moment.Therefore the programmer will need to group those actions(tasks) in a group. Those

kind of group mean procedures. To make it easier to remember and to group the tasks , the

programmer will name each procedure a different name and declare it. Then he/she will put in

the code for the action which will take in the procedure. Those actions are called Procedure

calls. Those action are coded in the same way as a normal code. Procedure call is one kind of

the Statement. When you declared it, everytime you type in your Procedure callits a call for

the program to run all of the action in that Procedure.

In house drawing , beside putting in image , we have to use the resources from swingame. All of

the procedure from swingame have been declared to be Statements therefore by saying at the

beginning of the programming code: uses SwinGame; means all the statements of SwinGame will

be available to use. Therefore we could see through the program, before the image of the

drawing house appear , there is sound effect and window screen. It is appear because we type

in the Procedure call which will link us to all the action which are available through thoseprocedures :

OpenAudio();




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program HouseDrawing;

uses SwinGame;

begin

OpenAudio();




FillEllipse ( ColorGreen, 0, 400, 800, 400 );

FillRectangle( ColorBlue, 300, 300, 200, 200);

FillTriangle(ColorRed, 250, 300,

400, 150,

550, 300);


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FillCircle ( ColorYellow, 100, 100, 50);



FillEllipse ( ColorBlue, 500, 50, 100, 50);









RefreshScreen();

Delay(15000);

CloseAudio();


end.


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EXTENSION:

program snowdrawing

uses Swingame;

begin

OpenAudio();

OpenGraphicsWindow('snow', 800, 600);


ClearScreen(ColorBlack);


485, 300 ,

600 , 275);

FillCircle(ColorWhite, 400, 450, 150);



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FillCircle(ColorBlack , 400, 570, 10);






400, 100,

510, 200);

FillCircle(ColorBlack, 450, 240, 10);

RefreshScreen();

Delay(8000);

CloseAudio();


end.

.


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4/. KNOCK KNOCK GAME

program Knock;

uses SwinGame;

procedure LoadResources();

begin

LoadBitmapNamed( 'door', 'KnockKnock.jpg');

LoadSoundEffectNamed('knock', 'door-knock-3.wav');

LoadFontNamed('joke font', 'arial.ttf', 40);

LoadSoundEffectNamed ('mad', 'scream.wav');

LoadBitmapNamed( 'mad', 'Higurashi___Scarlet_Blood_by_Kaza_SOU.jpg');

LoadBitmapNamed( 'fu', 'images.jpg');

LoadSoundEffectNamed ('holy', 'HolyShit.wav');


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end;

procedure DrawDoor();

begin

DrawBitmap ( 'door', 0, 0 );

RefreshScreen();

Delay(3000);

end;

procedure ClearTextArea();

begin

FillRectangle ( ColorBlack, 0, 450, 800, 150 );

RefreshScreen ( );

Delay ( 500 );

end;

procedure ShowKnockKnock();

begin

ClearTextArea ( );

PlaySoundEffect ( 'knock' );

DrawText ( 'Knock knock...', ColorWhite,'joke font', 200, 500 );

RefreshScreen ( );

Delay ( 2000 );

end;

procedure ShowWhoThere();

begin


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ClearTextArea ( );

DrawText ( 'Whos There...', ColorWhite,'joke font', 200, 500 );

RefreshScreen ( );

Delay ( 2000 );

end;

procedure DrawDoor2();

begin

DrawBitmap ( 'mad', 0, 0 );

RefreshScreen();

Delay(0000);

end;

procedure MadLaugh();

begin

ClearTextArea();

PlaySoundEffect ('mad');

DrawText ('Come to me babe...', ColorWhite, 'joke font', 200, 500);

RefreshScreen();

Delay (3000);

end;

procedure DrawDoor3();

begin

DrawBitmap ( 'fu', 300, 150 );

RefreshScreen();

Delay(0000);


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end;

procedure FU();

begin

ClearTextArea();

PlaySoundEffect ('holy');

DrawText ('HOLY SH*T', ColorWhite, 'joke font', 200, 500);

RefreshScreen();

Delay (8000);

end;

begin

OpenAudio();

OpenGraphicsWindow('Knock', 800, 600);



LoadResources();

DrawDoor();

ShowKnockKnock();

ShowWhoThere();

DrawDoor2();

MadLaugh();

DrawDoor3();

FU();

CloseAudio();


End.

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Algorithmic and Problem Solving