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fruit_ninja.py

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+import pygame, sys
+import os
+import random
+
+player_lives = 3                                                #keep track of lives
+score = 0                                                       #keeps track of score
+fruits = ['melon', 'orange', 'pomegranate', 'guava', 'bomb']    #entities in the game
+
+# initialize pygame and create window
+WIDTH = 800
+HEIGHT = 500
+FPS = 12                                                 #controls how often the gameDisplay should refresh. In our case, it will refresh every 1/12th second
+pygame.init()
+pygame.display.set_caption('Fruit-Ninja Game -- DataFlair')
+gameDisplay = pygame.display.set_mode((WIDTH, HEIGHT))   #setting game display size
+clock = pygame.time.Clock()
+
+# Define colors
+WHITE = (255,255,255)
+BLACK = (0,0,0)
+RED = (255,0,0)
+GREEN = (0,255,0)
+BLUE = (0,0,255)
+
+background = pygame.image.load('back.jpg')                                  #game background
+font = pygame.font.Font(os.path.join(os.getcwd(), 'comic.ttf'), 42)
+score_text = font.render('Score : ' + str(score), True, (255, 255, 255))    #score display
+lives_icon = pygame.image.load('images/white_lives.png')                    #images that shows remaining lives
+
+# Generalized structure of the fruit Dictionary
+def generate_random_fruits(fruit):
+    fruit_path = "images/" + fruit + ".png"
+    data[fruit] = {
+        'img': pygame.image.load(fruit_path),
+        'x' : random.randint(100,500),          #where the fruit should be positioned on x-coordinate
+        'y' : 800,
+        'speed_x': random.randint(-10,10),      #how fast the fruit should move in x direction. Controls the diagonal movement of fruits
+        'speed_y': random.randint(-80, -60),    #control the speed of fruits in y-directionn ( UP )
+        'throw': False,                         #determines if the generated coordinate of the fruits is outside the gameDisplay or not. If outside, then it will be discarded
+        't': 0,                                 #manages the
+        'hit': False,
+    }
+
+    if random.random() >= 0.75:     #Return the next random floating point number in the range [0.0, 1.0) to keep the fruits inside the gameDisplay
+        data[fruit]['throw'] = True
+    else:
+        data[fruit]['throw'] = False
+
+# Dictionary to hold the data the random fruit generation
+data = {}
+for fruit in fruits:
+    generate_random_fruits(fruit)
+
+def hide_cross_lives(x, y):
+    gameDisplay.blit(pygame.image.load("images/red_lives.png"), (x, y))
+
+# Generic method to draw fonts on the screen
+font_name = pygame.font.match_font('comic.ttf')
+def draw_text(display, text, size, x, y):
+    font = pygame.font.Font(font_name, size)
+    text_surface = font.render(text, True, WHITE)
+    text_rect = text_surface.get_rect()
+    text_rect.midtop = (x, y)
+    gameDisplay.blit(text_surface, text_rect)
+
+# draw players lives
+def draw_lives(display, x, y, lives, image) :
+    for i in range(lives) :
+        img = pygame.image.load(image)
+        img_rect = img.get_rect()       #gets the (x,y) coordinates of the cross icons (lives on the the top rightmost side)
+        img_rect.x = int(x + 35 * i)    #sets the next cross icon 35pixels awt from the previous one
+        img_rect.y = y                  #takes care of how many pixels the cross icon should be positioned from top of the screen
+        display.blit(img, img_rect)
+
+# show game over display & front display
+def show_gameover_screen():
+    gameDisplay.blit(background, (0,0))
+    draw_text(gameDisplay, "FRUIT NINJA!", 90, WIDTH / 2, HEIGHT / 4)
+    if not game_over :
+        draw_text(gameDisplay,"Score : " + str(score), 50, WIDTH / 2, HEIGHT /2)
+
+    draw_text(gameDisplay, "Press a key to begin!", 64, WIDTH / 2, HEIGHT * 3 / 4)
+    pygame.display.flip()
+    waiting = True
+    while waiting:
+        clock.tick(FPS)
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+            if event.type == pygame.KEYUP:
+                waiting = False
+
+# Game Loop
+first_round = True
+game_over = True        #terminates the game While loop if more than 3-Bombs are cut
+game_running = True     #used to manage the game loop
+while game_running :
+    if game_over :
+        if first_round :
+            show_gameover_screen()
+            first_round = False
+        game_over = False
+        player_lives = 3
+        draw_lives(gameDisplay, 690, 5, player_lives, 'images/red_lives.png')
+        score = 0
+
+    for event in pygame.event.get():
+        # checking for closing window
+        if event.type == pygame.QUIT:
+            game_running = False
+
+    gameDisplay.blit(background, (0, 0))
+    gameDisplay.blit(score_text, (0, 0))
+    draw_lives(gameDisplay, 690, 5, player_lives, 'images/red_lives.png')
+
+    for key, value in data.items():
+        if value['throw']:
+            value['x'] += value['speed_x']          #moving the fruits in x-coordinates
+            value['y'] += value['speed_y']          #moving the fruits in y-coordinate
+            value['speed_y'] += (1 * value['t'])    #increasing y-corrdinate
+            value['t'] += 1                         #increasing speed_y for next loop
+
+            if value['y'] <= 800:
+                gameDisplay.blit(value['img'], (value['x'], value['y']))    #displaying the fruit inside screen dynamically
+            else:
+                generate_random_fruits(key)
+
+            current_position = pygame.mouse.get_pos()   #gets the current coordinate (x, y) in pixels of the mouse
+
+            if not value['hit'] and current_position[0] > value['x'] and current_position[0] < value['x']+60 \
+                    and current_position[1] > value['y'] and current_position[1] < value['y']+60:
+                if key == 'bomb':
+                    player_lives -= 1
+                    if player_lives == 0:
+
+                        hide_cross_lives(690, 15)
+                    elif player_lives == 1 :
+                        hide_cross_lives(725, 15)
+                    elif player_lives == 2 :
+                        hide_cross_lives(760, 15)
+                    #if the user clicks bombs for three time, GAME OVER message should be displayed and the window should be reset
+                    if player_lives < 0 :
+                        show_gameover_screen()
+                        game_over = True
+
+                    half_fruit_path = "images/explosion.png"
+                else:
+                    half_fruit_path = "images/" + "half_" + key + ".png"
+
+                value['img'] = pygame.image.load(half_fruit_path)
+                value['speed_x'] += 10
+                if key != 'bomb' :
+                    score += 1
+                score_text = font.render('Score : ' + str(score), True, (255, 255, 255))
+                value['hit'] = True
+        else:
+            generate_random_fruits(key)
+
+    pygame.display.update()
+    clock.tick(FPS)      # keep loop running at the right speed (manages the frame/second. The loop should update afer every 1/12th pf the sec
+
+
+pygame.quit()