added dodgy square

Author: Federico

bonus_projects/dodgy_square/main.py

@@ -0,0 +1,174 @@
+import pygame
+from pygame.font import Font
+from pygame.time import Clock
+import random
+import sys
+
+
+class DodgySquare:
+    def __init__(self):
+        # Pygame
+        pygame.init()
+
+        # Screen
+        self.screen_width, self.screen_height = 600, 600
+        self.screen = pygame.display.set_mode((self.screen_width, self.screen_height))
+        pygame.display.set_caption("Dodgy Square")
+
+        # Colours
+        self.WHITE: tuple = (255, 255, 255)
+        self.BLACK: tuple = (0, 0, 0)
+        self.RED: tuple = (255, 99, 71)
+
+        # Font
+        self.font: Font = pygame.font.Font(None, 36)
+
+        # Player
+        self.player_size: int = 50
+        self.player_speed: int = self.player_size // 2
+        self.player_pos: list[int] = [self.screen_width // 2, self.screen_height - (2 * self.player_size)]
+
+        # Enemies
+        self.enemy_size: int = 50
+        self.enemy_pos: list[int] = [random.randint(0, self.screen_width - self.enemy_size), 0]
+        self.enemy_list = [self.enemy_pos]
+        self.enemy_speed: int = 3  # Low = slow, High = Fast
+        self.enemy_frequency: int = 30  # Low = Lots, High = Few
+
+        # Clock
+        self.clock: Clock = pygame.time.Clock()
+
+        # Game data
+        self.game_over: bool = False
+        self.score: int = 0
+        self.frame_count: int = 0
+        self.tick: float = 30
+
+        # Set up enemy speed and frequency
+        self.enemy_speed: int = 3
+        self.enemy_frequency: int = 30  # Number of frames between enemy creation
+
+    def create_enemy(self):
+        """Creates a new enemy at a random position"""
+
+        enemy_pos = [random.randint(0, self.screen_width - self.enemy_size), 0]
+        self.enemy_list.append(enemy_pos)
+
+    # Function to update enemy positions
+    def update_enemy_positions(self):
+        """Check whether it is time to create a new enemy and then does so"""
+
+        if self.frame_count % self.enemy_frequency == 0:
+            self.create_enemy()
+
+        # Give each enemy an id
+        for idx, enemy_pos in enumerate(self.enemy_list):
+            # Simulate gravity until off-screen
+            if 0 <= enemy_pos[1] < self.screen_height:
+                enemy_pos[1] += self.enemy_speed
+            else:
+                # When the enemy has passed
+                self.enemy_list.pop(idx)
+                self.score += 1
+                self.enemy_speed += 0.1
+
+    def detect_collision(self, player_pos: list[int], enemy_pos: list[int]) -> bool:
+        """Collision detection logic for checking if squares are intercepting"""
+
+        px, py = player_pos
+        ex, ey = enemy_pos
+        if (px <= ex < (px + self.player_size)) or (ex <= px < (ex + self.enemy_size)):
+            if (py <= ey < (py + self.player_size)) or (ey <= py < (ey + self.enemy_size)):
+                return True
+        return False
+
+    # Game over text
+    def show_game_over(self):
+        """Display game-over text"""
+
+        game_over_text = self.font.render("Game Over", True, self.WHITE)
+        self.screen.blit(game_over_text, (self.screen_width // 2 - 70, self.screen_height // 2 - 16))
+
+    # Replay the game
+    def replay_game(self):
+        """Reset everything to its initial state"""
+
+        self.player_pos: list[int] = [self.screen_width // 2, self.screen_height - (2 * self.player_size)]
+        self.enemy_list = [self.enemy_pos]
+        self.enemy_speed: int = 3
+        self.score: int = 0
+        self.game_over: bool = False
+        self.frame_count: int = 0
+
+    def draw_character(self, color: tuple, position: list[int], size: int):
+        """Draws a rectangle on the screen"""
+
+        pygame.draw.rect(self.screen, color, (position[0], position[1], size, size))
+
+    # Main game loop
+    def run(self):
+        """Run the game"""
+
+        while True:
+            for event in pygame.event.get():
+                if event.type == pygame.QUIT:
+                    pygame.quit()
+                    sys.exit()
+
+                # Handle key events
+                if event.type == pygame.KEYDOWN:
+                    match event.key:
+                        case pygame.K_LEFT:
+                            self.player_pos[0] -= self.player_speed
+                        case pygame.K_RIGHT:
+                            self.player_pos[0] += self.player_speed
+                        case pygame.K_UP:
+                            self.player_pos[1] -= self.player_speed
+                        case pygame.K_DOWN:
+                            self.player_pos[1] += self.player_speed
+                        case pygame.K_r if self.game_over:
+                            self.replay_game()
+
+                # Make sure the player stays on the screen
+                self.player_pos[0]: int = max(0, min(self.player_pos[0], self.screen_width - self.player_size))
+                self.player_pos[1]: int = max(0, min(self.player_pos[1], self.screen_height - self.player_size))
+
+            if not self.game_over:
+                self.update_enemy_positions()
+
+                # Check for collisions
+                for enemy_pos in self.enemy_list:
+                    if self.detect_collision(self.player_pos, enemy_pos):
+                        self.game_over = True
+                        break
+
+                # Reset everything for the next frame
+                self.screen.fill(self.BLACK)
+
+                # Draw the player
+                self.draw_character(self.WHITE, self.player_pos, self.player_size)
+
+                # Draw the enemies
+                for enemy_pos in self.enemy_list:
+                    self.draw_character(self.RED, enemy_pos, self.enemy_size)
+
+                # Display the score
+                score_text = self.font.render("Score: " + str(self.score), True, self.WHITE)
+                self.screen.blit(score_text, [10, 10])
+
+                # Increment the frame count
+                self.frame_count += 1
+            else:
+                self.show_game_over()
+
+            # Update the display
+            pygame.display.update()
+
+            # Frame rate
+            self.clock.tick(60)
+
+
+# Run the game
+if __name__ == '__main__':
+    game = DodgySquare()
+    game.run()