From Concept to Playable in seconds: Creating the Greedy Snake Game with Amazon Bedrock

import pygame
import sys
import random

# Initialize Pygame
pygame.init()

# Set up some constants
WIDTH, HEIGHT = 800, 600
BLOCK_SIZE = 20
SPEED = 10

# Set up some colors
WHITE = (255, 255, 255)
RED = (255, 0, 0)
GREEN = (0, 255, 0)

# Set up the display
screen = pygame.display.set_mode((WIDTH, HEIGHT))

# Set up the font
font = pygame.font.Font(None, 36)

# Set up the snake and food
snake = [(200, 200), (220, 200), (240, 200)]
food = (400, 300)

# Set up the direction
direction = 'RIGHT'

# Game loop
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP and direction != 'DOWN':
direction = 'UP'
elif event.key == pygame.K_DOWN and direction != 'UP':
direction = 'DOWN'
elif event.key == pygame.K_LEFT and direction != 'RIGHT':
direction = 'LEFT'
elif event.key == pygame.K_RIGHT and direction != 'LEFT':
direction = 'RIGHT'

# Move the snake
head = snake[-1]
if direction == 'UP':
new_head = (head[0], head[1] - BLOCK_SIZE)
elif direction == 'DOWN':
new_head = (head[0], head[1] + BLOCK_SIZE)
elif direction == 'LEFT':
new_head = (head[0] - BLOCK_SIZE, head[1])
elif direction == 'RIGHT':
new_head = (head[0] + BLOCK_SIZE, head[1])
snake.append(new_head)

# Check if the snake has eaten the food
if snake[-1] == food:
food = (random.randint(0, WIDTH - BLOCK_SIZE) // BLOCK_SIZE * BLOCK_SIZE,
random.randint(0, HEIGHT - BLOCK_SIZE) // BLOCK_SIZE * BLOCK_SIZE)
else:
snake.pop(0)

# Check if the snake has hit the edge or itself
if (snake[-1][0] < 0 or snake[-1][0] >= WIDTH or
snake[-1][1] < 0 or snake[-1][1] >= HEIGHT or
snake[-1] in snake[:-1]):
pygame.quit()
sys.exit()

# Draw everything
screen.fill(WHITE)
for pos in snake:
pygame.draw.rect(screen, GREEN, pygame.Rect(pos[0], pos[1], BLOCK_SIZE, BLOCK_SIZE))
pygame.draw.rect(screen, RED, pygame.Rect(food[0], food[1], BLOCK_SIZE, BLOCK_SIZE))
text = font.render(f'Score: {len(snake)}', True, (0, 0, 0))
screen.blit(text, (10, 10))

# Update the display
pygame.display.flip()

# Cap the frame rate
pygame.time.delay(1000 // SPEED)

**Strengths:**

1. **Clear and concise**: Your prompt is well-structured and easy to understand.
2. **Specific directives**: You explicitly state the desired output format (Python script) and the level of expertise (very skilled Python expert).
3. **Context and few-shot example prompts**: You provide a clear task description (Greedy Snake Game) and specify the expected output (high-quality Python script).
4. **Desired size of the response**: You ask for a "short" script.
5. **Specific response format**: You use the ```python``` block to indicate the expected format.
6. **Error handling**: You instruct the model to check its work and list errors or write "CHECKED: NO ERRORS" if none are found.

1. **Weaknesses:**

1. **Ambiguity**: While your prompt is generally clear, the phrase "something a very skilled python expert would write" might be subjective and open to interpretation.
2. **Negative formulations**: You use "NEVER write anything before the ```python``` block," which could be rephrased as "Only write code within the ```python``` block."
3. **Lack of constraints**: You don't specify any constraints on the script's length, complexity, or specific requirements (e.g., game features, difficulty level).
4. **No disclaimers**: You don't mention any sensitive domains or potential issues with the game's content.

**Suggestions:**

1. Consider rephrasing "something a very skilled python expert would write" to a more objective requirement, such as "follow best practices for Python coding."
2. Replace "NEVER write anything before the ```python``` block" with a more positive instruction, like "Only write code within the ```python``` block."
3. Add constraints, such as "The script should not exceed 200 lines of code" or "The game should have a minimum of 3 levels."
4. Consider adding a disclaimer, like "Please ensure the game's content is suitable for all ages and does not contain any offensive material."