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PyQt5 – Flames Calculator

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  • Last Updated : 03 Jun, 2022
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In this article we will see how we can create a flames calculator using PyQt5. This flames calculator assesses and predicts the outcome of a relationship based on an algorithm of two given names.
FLAMES is a popular game named after the acronym: Friends, Lovers, Affectionate, Marriage, Enemies, Sibling. This game does not accurately predict whether or not an individual is right for you, but it can be fun to play this with your friends.
Below is how the flames calculator will look like


GUI implementation steps : 
1. Create a label that says enter player 1 name and set color and geometry to it 
2. Add QLineEdit widget in front of the first name label to get the first name 
3. Similarly create another label that says enter player 2 name and set color and geometry to it 
4. Add QLineEdit widget in front of this label to get the second name 
5. Create a label to show the result and set its border, geometry and change its font. 
6. Create a push button at the bottom which says get result.
Back end implementation steps : 
1. Add action to the push button 
2. Inside the push button action get both player names 
3. Remove the spacing in between the names 
4. Call the get result method that returns the result 
5. Inside the get result method call the remove letter method that removes the common characters with their respective common occurrences. 
6. Then get the count of characters that are left and take FLAMES letters as [“F”, “L”, “A”, “M”, “E”, “S”] 
7. Start removing letter using the count we got. The letter which last the process is the result, return the result 
8. Set the result to the label using setText method. 

Below is the implementation 


# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
class Window(QMainWindow):
    def __init__(self):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 320, 400)
        # calling method
        # showing all the widgets
    # method for components
    def UiComponents(self):
        # creating label to tell user enter first name
        name1_label = QLabel("Enter Player 1 Name : ", self)
        # setting border and color to the label
        name1_label.setStyleSheet("border : 1px solid black ;
                                    background : lightgrey;")
        # setting geometry
        name1_label.setGeometry(10, 20, 140, 40)
        # creating label to tell user enter second name
        name2_label = QLabel("Enter Player 2 Name : ", self)
        # setting border and color to the label
        name2_label.setStyleSheet("border : 1px solid black ;
                                     background : lightgrey;")
        # setting geometry
        name2_label.setGeometry(10, 70, 140, 40)
        # creating a line edit to get the first name
        self.name1 = QLineEdit(self)
        # setting geometry
        self.name1.setGeometry(160, 20, 150, 40)
        # creating a line edit to get the second name
        self.name2 = QLineEdit(self)
        # setting geometry
        self.name2.setGeometry(160, 70, 150, 40)
        # creating a label to show result
        self.output = QLabel("Find Relationship Status", self)
        # setting geometry to the output label
        self.output.setGeometry(20, 160, 280, 60)
        # setting border and background color to it
        self.output.setStyleSheet("border : 2px solid black;
                                       background : white;")
        # setting alignment to output
        # setting font to the output
        self.output.setFont(QFont('Times', 11))
        # creating push button to get result
        self.push = QPushButton("Get Result", self)
        # setting geometry tot he button
        self.push.setGeometry(80, 260, 140, 50)
        # adding action to the push button
    # action called by the push button
    def do_action(self):
        # getting names
        name1 = self.name1.text()
        name2 = self.name2.text()
        # removing spacing form the name
        name1.replace(" ", "")
        name2.replace(" ", "")
        # function for removing common characters
        # with their respective occurrences
        def remove_match_char(list1, list2):
            for i in range(len(list1)):
                for j in range(len(list2)):
                    # if common character is found
                    # then remove that character
                    # and return list of concatenated
                    # list with True Flag
                    if list1[i] == list2[j]:
                        c = list1[i]
                        # remove character from the list
                        # concatenation of two list elements with *
                        # * is act as border mark here
                        list3 = list1 + ["*"] + list2
                        # return the concatenated list with True flag
                        return [list3, True]
                        # no common characters is found
            # return the concatenated list with False flag
            list3 = list1 + ["*"] + list2
            return [list3, False]
        # method to find the result
        def find_relation(p1_list, p2_list):
            # taking a flag as True initially
            proceed = True
            # keep calling remove_match_char function
            # until common characters is found or
            # keep looping until proceed flag is True
            while proceed:
                # function calling and store return value
                ret_list = remove_match_char(p1_list, p2_list)
                # take out concatenated list from return list
                con_list = ret_list[0]
                # take out flag value from return list
                proceed = ret_list[1]
                # find the index of "*" / border mark
                star_index = con_list.index("*")
                # list slicing perform
                # all characters before * store in p1_list
                p1_list = con_list[: star_index]
                # all characters after * store in p2_list
                p2_list = con_list[star_index + 1:]
                # count total remaining characters
            count = len(p1_list) + len(p2_list)
            # list of FLAMES acronym
            result = ["Friends", "Love", "Affection", "Marriage", "Enemy", "Siblings"]
            # keep looping until only one item
            # is not remaining in the result list
            while len(result) > 1:
                # store that index value from
                # where we have to perform slicing.
                split_index = (count % len(result) - 1)
                # this steps is done for performing
                # anticlock-wise circular fashion counting.
                if split_index >= 0:
                    # list slicing
                    right = result[split_index + 1:]
                    left = result[: split_index]
                    # list concatenation
                    result = right + left
                    result = result[: len(result) - 1]
            # print final result
            return result[0]
        # calling find relation method
        result = find_relation(list(name1), list(name2))
        # setting text to the output label
        self.output.setText("Relationship : " + result)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output : 


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