implement high score system

Author: ng-lis

projects/Snake Game/src/display.py

@@ -12,11 +12,12 @@ def __init__(self):
         pygame.display.set_caption("Snake")
         self.clock = pygame.time.Clock()
 
-    def update_ui(self, snake, food, score):
+    def update_ui(self, snake, food, score, high_score):
         self.window.fill(RgbColors.BLACK)
         self.draw_snake(snake)
         self.draw_food(food)
         self.draw_score(score)
+        self.render_high_score(high_score)
         pygame.display.flip()
 
     def draw_snake(self, snake):
@@ -37,6 +38,7 @@ def draw_food(self, food):
         )
 
     def draw_score(self, score):
+        self.font = pygame.font.Font(None, 25)
         score_display = self.font.render(f"Score: {score}", True, RgbColors.WHITE)
         self.window.blit(score_display, [0, 0])  # score in top left window corner
 
@@ -57,3 +59,17 @@ def render_play_again(self):
         display_box = play_again_display.get_rect(center=(self.width // 2, self.height // 2))
         self.window.blit(play_again_display, display_box)
         pygame.display.flip()
+
+    def render_high_score(self, high_score):
+        high_score_display = self.font.render(f"High Score: {high_score}", True, RgbColors.WHITE)
+        self.window.blit(high_score_display, [self.width - high_score_display.get_width(), 0])
+
+    def render_new_high_score(self, new_high_score):
+        new_high_score_display = self.font.render(f"New High Score: {new_high_score}", True, RgbColors.WHITE)
+        text_width = new_high_score_display.get_width()
+        text_height = new_high_score_display.get_height()
+        text_x = (self.width - text_width) // 2
+        text_y = (self.height // 3) - (text_height // 2)
+        self.window.blit(new_high_score_display,
+                         [text_x, text_y])
+        pygame.display.flip()

projects/Snake Game/src/game.py

@@ -1,5 +1,6 @@
 import pygame
 import random
+import json
 from snake import Snake, Direction, Point
 from display import Display
 from constants import GameSettings
@@ -12,18 +13,23 @@ def __init__(self):
         self.score = 0
         self.food = None
         self.place_food()
+        self.high_score = self.load_high_score()
 
     def game_loop(self):
         while True:
             self.play_step()
             game_over, score = self.play_step()
+            self.update_high_score(self.high_score)
             if game_over:
                 self.display.render_game_over()
+                if score > self.high_score:
+                    self.display.render_new_high_score(score)
+                    self.update_high_score(score)
+                    self.high_score = self.load_high_score()
                 self.display.render_play_again()
                 if not self.play_again():
                     break
                 self.restart_game()
-        print("Final Score:", self.score)
         pygame.quit()
 
     def is_collision(self):
@@ -67,7 +73,7 @@ def play_step(self):
         else:
             self.snake.blocks.pop()
         # Update UI and Clock
-        self.display.update_ui(self.snake, self.food, self.score)
+        self.display.update_ui(self.snake, self.food, self.score, self.high_score)
         self.display.clock.tick(GameSettings.SPEED)
         game_over = self.is_collision()
         return game_over, self.score
@@ -96,3 +102,19 @@ def restart_game(self):
         self.snake = Snake()
         self.score = 0
         self.place_food()
+        self.high_score = self.load_high_score()
+
+    def load_high_score(self):
+        try:
+            with open('high_score.json', 'r') as file:
+                data = json.load(file)
+                return data.get('high_score')
+        except FileNotFoundError:
+            return 0
+
+    def update_high_score(self, new_score):
+        high_score = self.load_high_score()
+        if new_score > high_score:
+            data = {"high_score": new_score}
+            with open('high_score.json', 'w') as file:
+                json.dump(data, file)