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tetris.py
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tetris.py
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import sys
import pygame
import random
# creating the data structure for pieces
# setting up global vars
# functions
# - create_grid
# - draw_grid
# - draw_window
# - rotating shape in main
# - setting up the main
pygame.init()
#screen dymensions
WIDTH, HEIGHT = 400, 600
GRID_SIZE = 30
WHITE = (255, 255, 255)
#Define the different tetromino shapes (I, J, L, O, S, T, Z) using 2D arrays.
SHAPES = [
[
['X', 'X', 'X', 'X']
],
[
['.', '.', 'X'],
['X', 'X', 'X']
],
[
['X', '.', '.'],
['X', 'X', 'X']
],
[
['X', 'X'],
['X', 'X']
],
[
['.', 'X', 'X'],
['X', 'X', '.']
],
[
['.', 'X', '.'],
['X', 'X', 'X']
],
[
['X', 'X', '.'],
['.', 'X', 'X']
]
]
# Initialize tetromino position
tetromino_x, tetromino_y = WIDTH // 2, 0
current_tetromino = random.choice(SHAPES) #This line selects a random tetromino shape from the list of predefined shapes (SHAPES).
# Create the game window
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Tetris Game")
# Initialize the grid (2D array to track placed blocks)
grid = [[None] * (WIDTH // GRID_SIZE) for _ in range(HEIGHT // GRID_SIZE)]
# Game loop
# Game loop
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
# Handle user input (left, right, down arrow keys)
keys = pygame.key.get_pressed()
if keys[pygame.K_LEFT]:
tetromino_x -= GRID_SIZE
if keys[pygame.K_RIGHT]:
tetromino_x += GRID_SIZE
if keys[pygame.K_DOWN]:
tetromino_y += GRID_SIZE
# Check collision with the bottom or other blocks
if tetromino_y + len(current_tetromino) * GRID_SIZE >= HEIGHT:
# Place the tetromino on the grid
for row in range(len(current_tetromino)):
for col in range(len(current_tetromino[0])):
if current_tetromino[row][col] == 'X':
grid[(tetromino_y + row * GRID_SIZE) // GRID_SIZE][(tetromino_x + col * GRID_SIZE) // GRID_SIZE] = 'X'
# Reset tetromino position
tetromino_x, tetromino_y = WIDTH // 2, 0
current_tetromino = random.choice(SHAPES)
# Draw the placed blocks on the grid
for row in range(len(grid)):
for col in range(len(grid[0])):
if grid[row][col] == 'X':
pygame.draw.rect(screen, WHITE, (col * GRID_SIZE, row * GRID_SIZE, GRID_SIZE, GRID_SIZE))
# Update the screen
pygame.display.flip()
# Clean up
pygame.quit()
sys.exit()