Reflection
One of the main challenges in this performance task is the complexity of the choices involved. With so many decisions involved, I tried to simplify the process in selecting options by implementing a primitive cursor control function using
getch()and through thecursorInterface().Instead of selecting choices by manually inputting the option code using
cin, I instead made the screen so that it only accepts<or>or theSpacebuttons to cycle the cursor through the given options. This is done by assigning thegetch()in an integer variable.getch(), when assigned in a variable with an integer data type, returns a unique integer code that depends on the specific key pressed. For example, in a statement likeselect = getch(), it awaits user input for a single character. If, for example, theEnterkey is pressed,getch()assigns the integer13, which can then be paired withif...elsestatements to detect that theEnterkey is pressed, and at the same time, execute commands whenever that specific key is pressed.This ensures that no forbidden inputs are made as it restricts the possible choices depends on what the developer wants, which can then be useful to avoid any undefined errors when displaying the paycheck. It is paired with
do...while()loops to ensure that the console is updated every time a key is pressed. Any key aside from the aforementioned<,>,Space, orEnterkeys will be ignored, which is a good way to avoid any forbidden inputs as well. To aid the process, I also placed some help notes on the bottom of the screen to aid the user what to do.Aside from that, some extra logic is required in the process of computing pizza cost. The base price of the pizza can be broken down on the type of flavor, the size, and the crust.
There is a 50 pesos increase per increase in size, regardless of flavor, and there is a 5 pesos increase per increase in size for the crust (if they chose thick).One of the most notable changes here is using more functions and even global variables that give me more freedom in how I plan to display objects in the console. I tried to implement the concept of a padding, border, and margin, similar to how CSS styles elements in a webpage.
I intend to clean some parts of the code, such as the cursor interface part, as some parts of the code was repeated (such as in the instance that a choice should be made) and code that is repeated can somehow be simplified in some way. I simply aim to know more about programming in general that might help me improve how I write my code somehow.
Gallery
-
Title Screen
-
Customer Entry Form
-
Order Entry Form
-
Receipt
Source Code
- The source code below displays the original source code of this program.
- For the updated source code, with loops and some modifications, see here.
#include <iostream.h>
#include <conio.h>
#include <string.h>
#include <math.h>
// Constants
// For console padding
int lpadding = 0;
int rpadding = 0;
// Functions
// Sets padding
void setpd (int left, int right) {
lpadding = left;
rpadding = right;
}
// Returns x coord for centering string in console
int center (char* string) {
int length = strlen(string);
return (80 - length) / 2;
}
// Outputs string with a left alignment
void lcout(int x, int y, char* message, int type) {
int xpos;
switch (type) {
case 1: // Relative to padding
xpos = x + lpadding;
break;
case 0: // Relative to left
xpos = x;
break;
}
gotoxy(xpos, y);
cout << message;
}
// Outputs string with center alignment
void ccout(int y, char* message) {
gotoxy(center(message), y);
cout << message;
}
// Outputs string with right alignment
void rcout(int x, int y, char* message, int type) {
int xpos;
int length = strlen(message);
switch (type) {
case 1: // Relative to padding
xpos = 80 - (x + length + rpadding);
break;
case 0: // Relative to right
xpos = 80 - (x + length);
break;
}
gotoxy(xpos, y);
cout << message;
}
// Function that displays a border
void createBorder (int starty, int endy, char vertChar, char horChar, char vertex) {
int i, startx, endx;
startx = lpadding;
endx = 80 - rpadding;
for (i = startx; i <= endx; i++) {
gotoxy(i, starty); cout << horChar;
}
for (i = startx; i <= endx; i++) {
gotoxy(i, endy); cout << horChar;
}
for (i = starty; i <= endy; i++) {
gotoxy(startx, i); cout << vertChar;
}
for (i = starty; i <= endy; i++) {
gotoxy(endx, i); cout << vertChar;
}
gotoxy(startx, starty); cout << vertex;
gotoxy(startx, endy); cout << vertex;
gotoxy(endx, starty); cout << vertex;
gotoxy(endx, endy); cout << vertex;
}
// Function that creates a horizontal line divider
void hr (int y, char lineChar, char endChar) {
int i, startx, endx;
startx = lpadding;
endx = 80 - rpadding;
gotoxy(startx, y); cout << endChar;
for (i = startx + 1; i <= endx - 1; i++) {
gotoxy(i, y); cout << lineChar;
}
gotoxy(endx, y); cout << endChar;
}
// Function that creates left aligned-spacing
void lspacer (int n, int mode) {
int x;
switch (mode) {
case 0: // with respect to viewport
x = n;
break;
default: // with respect to padding
x = n + lpadding;
break;
}
for (int i = wherex(); i < x; i++) { cout << " "; }
}
float round (float num, int placeValue) {
float shift, offset, roundn;
shift = 1;
if (placeValue > 0) {
for (int i = 0; i < placeValue; i++) shift = shift * 10;
} else if (placeValue < 0) {
for (int i = 0; i < abs(placeValue); i++) shift = shift / 10;
}
return floor(num * shift + 0.5f) / shift;
}
int cursorInterface (int possibleChoices, int initValue, int inputVar) {
int output = initValue;
if (inputVar == 44) output--;
else if (inputVar == 46 || inputVar == 32) output++;
if (output > possibleChoices) output = 1; // When it overflows, it resets back to the first choice,
if (output < 1) output = possibleChoices; // When it underflows, it goes to the highest possible choice.
return output;
}
main () {
int pQuantity, distance;
char pFlavor[20], pSize[6], pCrust[6], orderType[10], customerType[10];
char name[25], address[25];
float basePrice, baseCrust, pizzaPrice, crustMod, serviceCharge, spDiscount, subTotal, totalCost, tax;
int select, current, isDone, temp;
char console[50];
clrscr();
// Title Screen
setpd(20, 20);
createBorder(12, 15, '|', '-', '@');
ccout(13, "Pizza House");
ccout(14, "The House of Delicious Pizza");
getch();
clrscr();
// Customer Form
setpd(5, 5);
createBorder(8, 17, '|', '-', '@');
ccout(6, "Customer Info");
lcout(5, 10, "Customer Name:", 1);
lcout(5, 12, "Customer Address:", 1);
lcout(5, 14, "Customer Type:", 1);
lspacer(39, 0); cout << "Normal";
lspacer(55, 0); cout << "Senior/PWD";
gotoxy(30, 10); cin >> name;
gotoxy(30, 12); cin >> address;
// Customer Type Pick
lcout(38, 14, "(Normal)", 0);
current = 1;
do {
isDone = 0;
ccout(19, "Press Space or , and . to scroll through options.");
ccout(20, "Press Enter to confirm option.");
select = getch();
// Cursor Movement
current = cursorInterface(2, current, select);
// Console Update
switch (current) {
case 1:
lcout(54, 14, " Senior/PWD ", 0);
lcout(38, 14, "(Normal)", 0);
strcpy(customerType, "Normal"); // Assigns highlighted value to var
break;
case 2:
lcout(38, 14, " Normal ", 0);
lcout(54, 14, "(Senior/PWD)", 0);
strcpy(customerType, "Special");
break;
}
// Check if user presses Enter
if (select == 13) {
isDone = 1;
lcout(1, 19, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 1);
lcout(1, 20, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 19);
};
} while (isDone == 0);
ccout(19, "Press any key.");
getch();
// Pizza Order Entry
clrscr();
setpd(10, 10);
createBorder(4, 20, '|', '-', '@');
ccout(2, "Enter Order Details");
//// Display initial options
lcout(5, 7, "Flavor", 1);
lcout(5, 10, "Crust", 1);
lcout(5, 12, "Size", 1);
lcout(5, 14, "Order Type", 1);
lcout(5, 16, "Distance", 1);
lcout(5, 18, "Quantity", 1);
rcout(7, 6, "Ham and Cheese", 1);
rcout(7, 7, "Manager's Choice", 1);
rcout(7, 8, "Pepperoni", 1);
lcout(38, 10, "Thin", 0);
lcout(52, 10, "Thick", 0);
lcout(38, 12, "S", 0);
lcout(47, 12, "M", 0);
lcout(56, 12, "L", 0);
lcout(32, 14, "Dine-in", 0);
lcout(44, 14, "Take-out", 0);
lcout(57, 14, "Delivery", 0);
/// Set/prepare for pizza flavor choice
current = 1;
rcout(5, 6, "> Ham and Cheese <", 1);
do {
isDone = 0;
ccout(22, "Press Space or \'>\' and \'<\' to cycle through options.");
ccout(23, "Press Enter to confirm option.");
select = getch();
current = cursorInterface(3, current, select);
switch (current) {
case 1:
rcout(5, 6, "> Ham and Cheese <", 1);
rcout(5, 7, " Manager's Choice ", 1);
rcout(5, 8, " Pepperoni ", 1);
strcpy(pFlavor, "Ham and Cheese");
break;
case 2:
rcout(5, 6, " Ham and Cheese ", 1);
rcout(5, 7, "> Manager's Choice <", 1);
rcout(5, 8, " Pepperoni ", 1);
strcpy(pFlavor, "Manager's Choice");
break;
case 3:
rcout(5, 6, " Ham and Cheese ", 1);
rcout(5, 7, " Manager's Choice ", 1);
rcout(5, 8, "> Pepperoni <", 1);
strcpy(pFlavor, "Pepperoni");
break;
}
if (select == 13) {
isDone = 1;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
lcout(1, 23, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
}
} while (isDone == 0);
/// Set/prepare for pizza crust
current = 1;
lcout(36, 10, "> Thin <", 0);
do {
isDone = 0;
ccout(22, "Press Space or \'>\' and \'<\' to cycle through options.");
ccout(23, "Press Enter to confirm option.");
select = getch();
current = cursorInterface(2, current, select);
switch(current) {
case 1:
lcout(36, 10, "> Thin <", 0);
lcout(50, 10, " Thick ", 0);
strcpy(pCrust, "Thin");
break;
case 2:
lcout(36, 10, " Thin ", 0);
lcout(50, 10, "> Thick <", 0);
strcpy(pCrust, "Thick");
break;
}
if (select == 13) {
isDone = 1;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
lcout(1, 23, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
}
} while (isDone == 0);
/// Set/prepare for pizza size
current = 1;
lcout(36, 12, "> S <", 0);
do {
isDone = 0;
ccout(22, "Press Space or \'>\' and \'<\' to cycle through options.");
ccout(23, "Press Enter to confirm option.");
select = getch();
current = cursorInterface(3, current, select);
switch (current) {
case 1:
lcout(36, 12, "> S <", 0);
lcout(45, 12, " M ", 0);
lcout(54, 12, " L ", 0);
strcpy(pSize, "Small");
break;
case 2:
lcout(36, 12, " S ", 0);
lcout(45, 12, "> M <", 0);
lcout(54, 12, " L ", 0);
strcpy(pSize, "Medium");
break;
case 3:
lcout(36, 12, " S ", 0);
lcout(45, 12, " M ", 0);
lcout(54, 12, "> L <", 0);
strcpy(pSize, "Large");
break;
}
if (select == 13) {
isDone = 1;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
lcout(1, 23, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
}
} while (isDone == 0);
/// Set/prepare for order type
current = 1;
lcout(30, 14, "> Dine-in <", 0);
do {
isDone = 0;
ccout(22, "Press Space or \'>\' and \'<\' to cycle through options.");
ccout(23, "Press Enter to confirm option.");
select = getch();
current = cursorInterface(3, current, select);
switch (current) {
case 1:
lcout(30, 14, "> Dine-in <", 0);
lcout(42, 14, " Take-out ", 0);
lcout(55, 14, " Delivery ", 0);
strcpy(orderType, "Dine-in");
break;
case 2:
lcout(30, 14, " Dine-in ", 0);
lcout(42, 14, "> Take-out <", 0);
lcout(55, 14, " Delivery ", 0);
strcpy(orderType, "Take-out");
break;
case 3:
lcout(30, 14, " Dine-in ", 0);
lcout(42, 14, " Take-out ", 0);
lcout(55, 14, "> Delivery <", 0);
strcpy(orderType, "Delivery");
break;
}
if (select == 13) {
isDone = 1;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
lcout(1, 23, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
}
} while (isDone == 0);
/// Input distance
if (strcmp(orderType, "Delivery") == 0) {
lcout(55, 16, "km", 0);
ccout(22, "Please input distance (in kilometers) from branch to customer address.");
gotoxy(48, 16); cin >> distance;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
} else {
lcout(46, 16, "N/A", 0);
}
/// Input qty
ccout(22, "Please input quantity of pizzas to order.");
gotoxy(46, 18); cin >> pQuantity;
lcout(1, 22, "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t", 0);
ccout(22, "Press any key.");
getch();
clrscr();
// Cost calculation
if (strcmp(pFlavor, "Ham and Cheese") == 0) {
basePrice = 200;
baseCrust = 5;
} else if (strcmp(pFlavor, "Manager's Choice") == 0) {
basePrice = 250;
baseCrust = 10;
} else if (strcmp(pFlavor, "Pepperoni") == 0) {
basePrice = 400;
baseCrust = 15;
}
if (strcmp(pSize, "Small") == 0) crustMod = 0;
else if (strcmp(pSize, "Medium") == 0) {
basePrice = basePrice + 50;
crustMod = 5;
} else if (strcmp(pSize, "Large") == 0) {
basePrice = basePrice + 100;
crustMod = 10;
}
if (strcmp(pCrust, "Thick") == 0) pizzaPrice = basePrice + baseCrust + crustMod;
else pizzaPrice = basePrice;
subTotal = pizzaPrice * pQuantity;
tax = 0.12 * subTotal;
/// Conditional Discounts/Taxes
if (strcmp(customerType, "Special") == 0) spDiscount = 0.2 * subTotal;
if (strcmp(orderType, "Dine-in") == 0) serviceCharge = 0.1 * subTotal;
else if (strcmp(orderType, "Delivery") == 0) serviceCharge = floor(distance / 4) * 50;
else serviceCharge = 0;
totalCost = (subTotal + tax + serviceCharge) - spDiscount;
// Receipt
setpd(15, 15);
createBorder(5, 25, '|', '-', '@');
ccout(2,"Pizza House");
ccout(3, "The Home of Delicious Pizza");
ccout(4, "Gen. T De Leon Branch, Valenzuela City");
lcout(2, 6, "Customer Name: ", 1); cout << name;
lcout(2, 7, "Customer Address: ", 1); cout << address;
rcout(1, 6, "Date: 10-24-24", 1);
ccout(8, "Official Receipt");
lcout(5, 10, "", 1); cout << pQuantity << " pc " << pFlavor << " Pizza";
lcout(5, 11, "Pizza Cost: ", 1); rcout(10, 11, "", 1); cout << round(basePrice, 2);
if (strcmp(pCrust, "Thick") == 0) {
lcout(5, 12, "Crust: ", 1);
rcout(10, 12, "", 1);
cout << round(baseCrust + crustMod, 2);
}
rcout(2, 13, "----------", 1);
rcout(10, 14, "", 1); cout << round(pizzaPrice, 2);
lcout(5, 15, "Qty: ", 1); rcout(10, 15, "", 1); cout << round(pQuantity, 2);
rcout(2, 16, "----------", 1);
lcout(5, 17, "Subtotal: ", 1); rcout(10, 17, "", 1); cout << round(subTotal, 2);
if (strcmp(orderType, "Dine-in") == 0) lcout(5, 18, "Service Charge: ", 1); rcout(10, 18, "", 1); cout << round(serviceCharge, 2);
if (strcmp(orderType, "Delivery") == 0) lcout(5, 18, "Delivery Charge: ", 1); rcout(10, 18, "", 1); cout << round(serviceCharge, 2);
lcout(5, 19, "VAT Added: ", 1); rcout(10, 19, "", 1); cout << round(tax, 2);
if (strcmp(customerType, "Special") == 0) {
if (spDiscount == 0) temp = 11;
else temp = 10;
lcout(5, 20, "Discount", 1); rcout(temp, 20, "", 1); cout << -1 * round(spDiscount, 2);
}
rcout(2, 21, "----------", 1);
lcout(5, 22, "Total Cost: ", 1); rcout(10, 22, "", 1); cout << round(totalCost, 2);
ccout(23, "Thank you for coming!");
ccout(24, "Pls come again!");
getch();
return 0;
}