我首先使用这种方法生成了一个tilemap：
for rw in range(tilesettings.mapheight):
for cl in range(tilesettings.mapwidth):
randomNumber = random.randint(0,15)
if randomNumber == 0:
tile = tilesettings.COAL
elif randomNumber == 1 or randomNumber == 2:
tile = tilesettings.WATER
elif randomNumber >= 3 and randomNumber <= 14:
tile = tilesettings.GRASS
else:
tile = tilesettings.DIRT
tilesettings.tilemap[rw][cl] = tile
这样做的问题是，它仅生成仅是随机选择的图块的地图，而没有生成类似于现实的岛屿形状的图。
因此，我决定使用Perlin噪声生成如下的随机岛形： A randomly generated island with Perlin noise
这是产生噪声的代码部分：
import pygame, sys
import noise
import numpy as np
from scipy.misc import toimage
from settings import Settings
from tilemap import Tilemap
from player import Player
from cursor import Cursor
from biome import Biome
from axe import Axe
import game_functions as gf
import random
def run_game():
tilesettings = Tilemap()
colours = {
tilesettings.DIRT: tilesettings.BROWN,
tilesettings.GRASS: tilesettings.GREEN,
tilesettings.WATER: tilesettings.BLUE,
tilesettings.COAL: tilesettings.BLACK,
tilesettings.SAND : tilesettings.SAND,
tilesettings.STONE: tilesettings.GREY,
tilesettings.SNOW: tilesettings.WHITE,
}
resources = [tilesettings.DIRT, tilesettings.GRASS,
tilesettings.WATER, tilesettings.COAL]
shape = (500, 500)
scale = 300
octaves = 6
persistence = 0.5
lacunarity = 2.0
seed = np.random.randint(0, 100)
world = np.zeros(shape)
for i in range(shape[0]):
for j in range(shape[1]):
world[i][j] = noise.pnoise2(i / scale,
j / scale,
octaves=octaves,
persistence=persistence,
lacunarity=lacunarity,
repeatx=1024,
repeaty=1024,
base=seed)
blue = [65, 105, 225]
green = [34, 139, 34]
beach = [238, 214, 175]
snow = [255, 250, 250]
mountain = [139, 137, 137]
def add_color(world):
color_world = np.zeros(world.shape + (3,))
for i in range(shape[0]):
for j in range(shape[1]):
if world[i][j] < -0.05:
color_world[i][j] = blue
elif world[i][j] < 0:
color_world[i][j] = beach
elif world[i][j] < .20:
color_world[i][j] = green
elif world[i][j] < 0.35:
color_world[i][j] = mountain
elif world[i][j] < 1.0:
color_world[i][j] = snow
return color_world
color_world = add_color(world)
a, b = shape[0] / 2, shape[1] / 2
n = 1024
r = 125
y, x = np.ogrid[-a:n - a, -b:n - b]
# creates a mask with True False values
# at indices
mask = x ** 2 + y ** 2 <= r ** 2
black = [0, 0, 0]
island_world = np.zeros_like(color_world)
for i in range(shape[0]):
for j in range(shape[1]):
if mask[i][j]:
island_world[i][j] = color_world[i][j]
else:
island_world[i][j] = black
import math
center_x, center_y = shape[1] // 2, shape[0] // 2
circle_grad = np.zeros_like(world)
for y in range(world.shape[0]):
for x in range(world.shape[1]):
distx = abs(x - center_x)
disty = abs(y - center_y)
dist = math.sqrt(distx * distx + disty * disty)
circle_grad[y][x] = dist
# get it between -1 and 1
max_grad = np.max(circle_grad)
circle_grad = circle_grad / max_grad
circle_grad -= 0.5
circle_grad *= 2.0
circle_grad = -circle_grad
# shrink gradient
for y in range(world.shape[0]):
for x in range(world.shape[1]):
if circle_grad[y][x] > 0:
circle_grad[y][x] *= 20
# get it between 0 and 1
max_grad = np.max(circle_grad)
circle_grad = circle_grad / max_grad
world_noise = np.zeros_like(world)
for i in range(shape[0]):
for j in range(shape[1]):
world_noise[i][j] = (world[i][j] * circle_grad[i][j])
if world_noise[i][j] > 0:
world_noise[i][j] *= 20
# get it between 0 and 1
max_grad = np.max(world_noise)
world_noise = world_noise / max_grad
lightblue = [0, 191, 255]
blue = [65, 105, 225]
green = [34, 139, 34]
darkgreen = [0, 100, 0]
sandy = [210, 180, 140]
beach = [238, 214, 175]
snow = [255, 250, 250]
mountain = [139, 137, 137]
这是我尝试制作的代码的一部分，以便将tilemap中的tile设置为正确的tile。
threshold = 0.005
def add_color2(world):
color_world = np.zeros(world.shape + (3,))
for i in range(shape[0]):
for j in range(shape[1]):
if world[i][j] < threshold + 0.05:
color_world[i][j] = blue
tile = tilesettings.WATER
elif world[i][j] < threshold + 0.055:
color_world[i][j] = sandy
tile = tilesettings.SAND
elif world[i][j] < threshold + 0.1:
color_world[i][j] = beach
tile = tilesettings.SAND
elif world[i][j] < threshold + 0.25:
color_world[i][j] = green
tile = tilesettings.GRASS
elif world[i][j] < threshold + 0.6:
color_world[i][j] = darkgreen
tile = tilesettings.GRASS
elif world[i][j] < threshold + 0.7:
color_world[i][j] = mountain
tile = tilesettings.GRASS
elif world[i][j] < threshold + 1.0:
color_world[i][j] = snow
tile = tilesettings.SNOW
tilesettings.tilemap[i][j] = tile
return color_world
island_world_grad = add_color2(world_noise)
toimage(island_world_grad).show()
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode((ai_settings.screen_width,
ai_settings.screen_height))
pygame.mouse.set_visible(True)
player = Player(ai_settings, screen, tilesettings)
cursor = Cursor(ai_settings, screen, tilesettings, player)
axe = Axe(ai_settings, screen, tilesettings, cursor)
while True:
gf.check_events(ai_settings, screen, player, cursor, axe)
player.update()
cursor.update()
gf.update_screen(ai_settings, screen, player)
for row in range (tilesettings.mapheight):
for column in range(tilesettings.mapwidth):
pygame.draw.rect(screen,
colours[tilesettings.tilemap[row][column]],(column*
tilesettings.tilesize, row* tilesettings.tilesize,
tilesettings.tilesize, tilesettings.tilesize))
biome.update(screen)
player.blitme()
axe.changeimage()
axe.blitme()
pygame.display.update()
run_game()
我遇到的问题是，当我运行代码时，它非常笨拙，并且只在水瓦片屏幕上显示我的角色。我确实尝试执行单独的代码来设置图块：
color_world = np.zeros(world.shape + (3,))
for rw in range (shape[0]):
for cl in range(shape[1]):
if color_world == blue:
tile = tilesettings.WATER
elif color_world == sandy:
tile = tilesettings.SAND
elif color_world == beach:
tile = tilesettings.SAND
elif color_world == green:
tile = tilesettings.GREEN
elif color_world == darkgreen:
tile = tilesettings.GRASS
elif color_world == mountain:
tile = tilesettings.STONE
elif color_world == snow:
tile = tilesettings.SNOW
tilesettings.tilemap[rw][cl] = tile
当我这样做时，出现了一个奇怪的错误：
if color_world == blue:
ValueError：具有多个元素的数组的真值不明确。使用a.any（）或a.all（）
多年来我一直在弄乱我的代码，看不到我做错了什么，请有人帮忙，将不胜感激:)
快速更新，结果并不仅仅是渲染蓝屏，因为我看到了渲染的沙砖，这一定与播放器的位置有关，但它非常滞后且无法播放。
答案 0 :(得分：0)
棘手的答案，因为您的答案缺少可运行的示例，但有两点：
if color_world == blue:
在这里出现错误并不奇怪。错误消息告诉您出了什么问题：
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
您尝试检查color_world是否等于blue，但是color_world是多维列表，而blue是整数列表，因此Python现在基本上知道了什么至。我想这行应该是
if color_world[i][j] == blue
此外，删除此部分：
for row in range (tilesettings.mapheight):
for column in range(tilesettings.mapwidth):
pygame.draw.rect(screen,
colours[tilesettings.tilemap[row][column]],(column*
tilesettings.tilesize, row* tilesettings.tilesize,
tilesettings.tilesize, tilesettings.tilesize))
超出主循环范围。
先运行一次，然后将背景绘制到新的Surface，然后在主循环中使用新的Surface，如下所示：
...
background = pygame.Surface((tilesettings.mapwidth*tilesettings.tilesize, tilesettings.mapheight*tilesettings.tilesize))
for row in range (tilesettings.mapheight):
for column in range(tilesettings.mapwidth):
pygame.draw.rect(background ,
colours[tilesettings.tilemap[row][column]],(column*
tilesettings.tilesize, row* tilesettings.tilesize,
tilesettings.tilesize, tilesettings.tilesize))
...
while True:
gf.check_events(ai_settings, screen, player, cursor, axe)
player.update()
cursor.update()
gf.update_screen(ai_settings, screen, player)
screen.blit(background, (0, 0))
biome.update(screen)
player.blitme()
axe.changeimage()
axe.blitme()
pygame.display.update()
因此您不必每秒每秒遍历tilesettings.tilemap中的每一行和每一列。您会明白的。
那应该可以帮助您提高性能。