pygame 游戏中不显示颜色

Question

我尝试修复代码，但无法修复。颜色不显示。它以前有效，但当我尝试添加生物群落时，它删除了颜色，但不知道为什么。有谁知道如何修理它？它基本上是一个 2D 地图生成器，可以无限生成不同的生物群落和陆地类型，它应该显示海拔和事物。

`

import pygame
import random
import noise

# Initialize Pygame
pygame.init()

# Screen settings
screen_width = 900
screen_height = 600  # Adjusted screen height
screen = pygame.display.set_mode((screen_width, screen_height))  # Set screen size
pygame.display.set_caption("Infinite Scrollable World")

# Color palette
colors = {
    "land": (60, 140, 40),  # Lighter land color
    "water": (30, 50, 170),
    "desert": (230, 220, 170),  # Desert color
    "mountains": (128, 128, 128),  # Mountains color
    "snow": (255, 255, 255),  # Snow color
    "forest": (34, 139, 34),  # Forest color
    "swamp": (139, 69, 19),  # Swamp color
    "beach": (255, 255, 153),  # Beach color
    "tundra": (255, 255, 255)  # Tundra color
}

# Biome definitions
biomes = {
    "water": {"elevation": (0, 30), "color": colors["water"]},
    "beach": {"elevation": (31, 60), "color": colors["beach"]},
    "desert": {"temperature": (0.4, 1.0), "moisture": (0.0, 0.3), "elevation": (61, 150), "color": colors["desert"]},
    "grassland": {"temperature": (0.2, 0.8), "moisture": (0.2, 0.6), "elevation": (61, 150), "color": colors["land"]},
    "forest": {"temperature": (0.0, 0.7), "moisture": (0.5, 1.0), "elevation": (61, 150), "color": colors["forest"]},
    "mountains": {"elevation": (151, 200), "color": colors["mountains"]},
    "snow": {"temperature": (-1.0, 0.0), "moisture": (0.5, 1.0), "elevation": (201, 255), "color": colors["snow"]},
    "swamp": {"temperature": (0.0, 0.7), "moisture": (0.8, 1.0), "elevation": (61, 150), "color": colors["swamp"]},
    "tundra": {"temperature": (-1.0, 0.5), "moisture": (0.3, 0.6), "elevation": (151, 255), "color": colors["tundra"]}
}

# Print elevation ranges for each biome
for biome_name, info in biomes.items():
    print(f"{biome_name}: {info['elevation']}")

# Infinite world generator (using modulo for continuous access)
def generate_world(x, y, size):
    world = []
    for y_ in range(y, y + size):
        row = []
        for x_ in range(x, x + size):
            # Combine multiple Perlin noise layers
            noise1 = noise.snoise2(x_ * 0.05, y_ * 0.05, octaves=4)  # Sand noise
            noise2 = noise.snoise2(x_ * 0.02, y_ * 0.02, octaves=8)  # Grass noise
            noise3 = noise.snoise2(x_ * 0.01, y_ * 0.01, octaves=6)  # Mountains noise
            noise4 = noise.snoise2(x_ * 0.005, y_ * 0.005, octaves=2)  # Snow noise

            elevation = int((noise1 + noise2 + noise3) * 128)  # Combine and map to 0-255

            # Assign biome based on elevation
            color = (0, 0, 0)  # Default color
            for biome_name, info in biomes.items():
                if elevation >= info.get("elevation", (0, 0))[0] and elevation <= info.get("elevation", (0, 0))[1]:
                    color = info["color"]  # Assign color within the matching biome condition
                    break

            row.append((elevation, color))  # Referencing 'color' after assignment
        world.append(row)
    return world

# Player movement variables
player_x = screen_width // 2
player_y = screen_height // 2
scroll_speed = 5

# World generation parameters
chunk_size = 100  # Adjustable chunk size preference
world_offset = {
    "x": player_x // chunk_size,  # Initial world offset adjusted based on player position
    "y": player_y // chunk_size
}

# Perlin noise parameters for island generation
scale = 0.005
octaves = 4

# Game loop
running = True
clock = pygame.time.Clock()

while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # Player movement and world offset update
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        player_x -= scroll_speed
        world_offset["x"] += scroll_speed // chunk_size  # Update world offset for scrolling
    if keys[pygame.K_RIGHT]:
        player_x += scroll_speed
        world_offset["x"] -= scroll_speed // chunk_size
    if keys[pygame.K_UP]:
        player_y -= scroll_speed
        world_offset["y"] += scroll_speed // chunk_size
    if keys[pygame.K_DOWN]:
        player_y += scroll_speed
        world_offset["y"] -= scroll_speed // chunk_size

    # Generate world chunk around player
    chunk_x = (player_x - screen_width // 2 // chunk_size)
    chunk_y = (player_y - screen_height // 2 // chunk_size)
    world_chunk = generate_world(chunk_x, chunk_y, chunk_size)

    # Clear screen and draw world chunk
    screen.fill((0, 0, 0))  # Clear black background
    for y in range(len(world_chunk)):
        for x in range(len(world_chunk[0])):
            elevation, color = world_chunk[y][x]  # Unpack elevation and color tuple
            rect = pygame.Rect(x * 10, y * 10, 10, 10)
            pygame.draw.rect(screen, color, rect)  # Use color from tuple

    # Update display
    pygame.display.flip()
    pygame.display.update()
    clock.tick(60)

pygame.quit()

不同的生物群系具有不同的颜色和海拔。

Answer 1

快速阅读您的代码会发现

generate_world

中出现一些奇怪的事情：

• noise4

  未使用（我假设它进入

  elevation

  公式） - 这可能会对地图上实际显示的海拔产生很小的影响；

• biome_name

  未使用（那个并不重要，也许你只是想要它，这样你就可以使用

  print

  进行调试 - 否则你可以使用

  for info in biomes.values():

  ）；

• elevation

  是唯一的变量，因此屏幕上不应有超过 5 个生物群落（以五个海拔范围中第一个出现的生物群落为准）。

除此之外似乎还不错。我运行了你的代码（只需用

noise

替换

perlin_noise

模块，因为

noise

不会安装）并得到这个：

如果这不是您所期望的，也许您可以更新问题？