python之在 Python/Pygame 中构建 Tilemap 并测试鼠标位置_编程设计

嘿，我感谢你能提供的任何帮助

我正在创建一个瓷砖 map 来测试一个可能的项目。我找到了一个有效生成瓷砖 map 的教程。然后，如果鼠标位于 block 的位置，我会尝试通过循环遍历每个 X 和 Y 坐标测试来实现我自己的代码。如果鼠标位于图 block 的顶部，则会在其上绘制一个框以创建鼠标所在位置的视觉效果。我遇到的问题是网格看起来像这样:

但是鼠标检测只能在这些瓷砖上沿对角线进行:

代码如下:

    from pygame.locals import * 
import pygame, sys 
 
green = (40,255,30) 
brown = (40,60,90) 
red = (155,20,30) 
yellow = (0,155,155) 
 
grass = 0 
dirt = 1 
lava = 2 
 
colours = { 
    grass: green, 
    dirt: brown, 
    lava: red, 
    } 
 
tilemap = [ 
        [grass,dirt,dirt,dirt, lava], 
        [dirt,lava,dirt,dirt, dirt], 
        [lava, grass,dirt,dirt, lava], 
        [lava, grass,dirt,dirt, grass], 
        [dirt,dirt,dirt,dirt,grass] 
 
        ] 
 
TILESIZE = 50 
MAPWIDTH =  5 
MAPHEIGHT = 5 
 
pygame.init() 
DISPLAYSURF = pygame.display.set_mode((MAPWIDTH*TILESIZE,MAPHEIGHT*TILESIZE)) 
 
while True: 
 
 
    mouse_x = pygame.mouse.get_pos()[0] 
    mouse_y = pygame.mouse.get_pos()[1] 
 
 
    for event in pygame.event.get(): 
        if event.type == QUIT: 
            pygame.quit() 
            sys.exit 
        for row in range(MAPWIDTH): 
            print 
            for column in range(MAPHEIGHT): 
                pygame.draw.rect(DISPLAYSURF, colours[tilemap[row][column]], (column*TILESIZE, row*TILESIZE, TILESIZE, TILESIZE)) 
                if mouse_x >= (row * TILESIZE) and mouse_x <= (row* TILESIZE) + TILESIZE: 
                    if mouse_y >= (column * TILESIZE) and mouse_y <= (column* TILESIZE) + TILESIZE: 
                        print (str(row) + " " + str(column)) 
                        pygame.draw.rect(DISPLAYSURF, yellow, (row * TILESIZE, column*TILESIZE, TILESIZE, TILESIZE)) 
 
 
 
 
 
 
 
    pygame.display.update()

请您参考如下方法:

首先，您没有清除屏幕。接下来你的绘制代码是错误的(如果检查是错误的) 正确的是 x 表示列，y 表示行。

希望对您有所帮助! :)

from pygame.locals import * 
import pygame, sys 
 
green = (40,255,30) 
brown = (40,60,90) 
red =  (155,20,30) 
yellow = (0,155,155) 
 
grass = 0 
dirt = 1 
lava = 2 
 
colours = { 
    grass: green, 
    dirt: brown, 
    lava: red, 
    } 
 
tilemap = [ 
        [grass,dirt,dirt,dirt, lava], 
        [dirt,lava,dirt,dirt, dirt], 
        [lava, grass,dirt,dirt, lava], 
        [lava, grass,dirt,dirt, grass], 
        [dirt,dirt,dirt,dirt,grass] 
 
        ] 
 
TILESIZE = 50 
MAPWIDTH =  5 
MAPHEIGHT = 5 
 
pygame.init() 
DISPLAYSURF = pygame.display.set_mode((MAPWIDTH*TILESIZE,MAPHEIGHT*TILESIZE))

当为真时:

    mouse_x = pygame.mouse.get_pos()[0] 
    mouse_y = pygame.mouse.get_pos()[1] 
 
    print mouse_x, mouse_y 
 
    for event in pygame.event.get(): 
        if event.type == QUIT: 
            pygame.quit() 
 
        DISPLAYSURF.fill((0,0,0)); 
        for row in range(MAPWIDTH): 
            print             
            for column in range(MAPHEIGHT): 
                color = colours[tilemap[row][column]]; 
                if mouse_x >= (column * TILESIZE) and mouse_x <= (column* TILESIZE) + TILESIZE: 
                    if mouse_y >= (row * TILESIZE) and mouse_y <= (row* TILESIZE) + TILESIZE: 
                        print (str(row) + " " + str(column)) 
                        color = yellow;                                                                                                             
 
                pygame.draw.rect(DISPLAYSURF, color, (column*TILESIZE, row*TILESIZE, TILESIZE, TILESIZE)) 
 
 
    pygame.display.update()