Mehrere Retrakte verschieben, indem man auf einen davon klickt

Question

Ich habe zwei Listen mit je 3 Retrakten. Kann ich den Variablen selected1 und selected2 3 rects aus jeder Liste zuweisen und diese zwei Zeilen von rects einzeln nach oben und unten verschieben, während die Lücken zwischen ihnen bleiben? Ich bin Anfänger und weiß nicht, ob solch ein konstruierter Code diese Aufgabe bewältigen kann.

import pygame 

# === CONSTANS === 
white = (255, 255, 255) 
black = (0, 0, 0) 
red = (255, 0, 0) 
blue = (0, 0, 255) 
green = (0, 102, 0) 
yellow = (255, 204, 0) 
grid_color = (224, 224, 224) 

width = 1200 
height = 720 

k = 10 

screen = pygame.display.set_mode((width, height)) 
screen_rect = screen.get_rect() 

# --- objects --- 

G_x = 10 # stripe width 
x = 2 

stripes_x1 = [] 
stripes_x2 = [] 

G1_pos_x = 122 
G2_pos_x = 367 
G1_pos_y = 0 
G2_pos_y = 0 

G1_y = 60*x 
G2_y = 75*x 

G1_start = G1_pos_y + height - G1_y 
G2_start = G2_pos_y + height - G2_y 

a = 166 
b = 222 
for x in range(3): 
    gap = a*x 
    gap2 = b*x 
    stripes_x1.append(pygame.Rect(G1_pos_x, (G1_start - 6*k) - gap, G_x, G1_y)) 
    stripes_x2.append(pygame.Rect(G2_pos_x, (G2_start - 6*k) - gap2, G_x, G2_y)) 

selected1 = None 
selected2 = None 

# --- mainloop --- 

clock = pygame.time.Clock() 
is_running = True 

while is_running: 

    for event in pygame.event.get(): 

     # --- global events --- 

     if event.type == pygame.QUIT: 
      is_running = False 

     if event.type == pygame.KEYDOWN: 
      if event.key == pygame.K_ESCAPE: 
       is_running = False 

     if event.type == pygame.MOUSEBUTTONDOWN: 
      if event.button == 1: 
       for i, r in enumerate(stripes_x1): 
        if r.collidepoint(event.pos): 
         selected1 = i 
         selected_offset_y = r.y - event.pos[1] 
     if event.type == pygame.MOUSEMOTION: 
      if selected1 is not None: # selected can be `0` so `is not None` is required 
       stripes_x1[selected1].y = event.pos[1] + selected_offset_y 

     if event.type == pygame.MOUSEBUTTONUP: 
      if event.button == 1: 
       selected1 = None 

     if event.type == pygame.MOUSEBUTTONDOWN: 
      if event.button == 1: 
       for j, r in enumerate(stripes_x2): 
        if r.collidepoint(event.pos): 
         selected2 = j 
         selected_offset_y = r.y - event.pos[1] 
     if event.type == pygame.MOUSEMOTION: 
      if selected2 is not None: # selected can be `0` so `is not None` is required 
       stripes_x2[selected2].y = event.pos[1] + selected_offset_y 

     if event.type == pygame.MOUSEBUTTONUP: 
      if event.button == 1: 
       selected2 = None 

     # --- objects events --- 

     ''' 
     button.handle_event(event) 
     ''' 
    # --- updates --- 
     # empty 
    # --- draws --- 

    screen.fill(white) 
    for i in range(width): 
     grid_x = k * i 
     grid_y = k * i 

     pygame.draw.line(screen, grid_color, (grid_x, 0), (grid_x, height), 1) 
     pygame.draw.line(screen, grid_color, (0, grid_y), (width, grid_y), 1) 
     pygame.draw.line(screen, black, (6 * k, height - 6 * k), (width - 6 * k, height - 6 * k), 3) 
     pygame.draw.line(screen, black, (6 * k, height - 6 * k), (6 * k, 0 * k), 3) 
    # draw rect 
    for r in stripes_x1: 
     pygame.draw.rect(screen, green, r) 
    for s in stripes_x2: 
     pygame.draw.rect(screen, green, s) 


    pygame.display.update() 

    clock.tick(60) 
pygame.quit() 

Answer 1

Um die Rects gleichzeitig zu bewegen, können Sie sie in einer Liste und setzen können, wenn ein rect ausgewählt ist, bewegen sie alle mit Hilfe des rel Attribut des MOUSEMOTION Ereignis (die relative Position von der letzten Maus Veranstaltung). Hier ist ein minimales Beispiel:

import sys 
import pygame as pg 


BLACK = pg.Color('black') 
RECT_COLOR = pg.Color(78, 140, 200) 


def main(): 
    screen = pg.display.set_mode((640, 480)) 
    clock = pg.time.Clock() 
    rect_list = [pg.Rect(100, 100+y, 20, 80) for y in range(0, 241, 120)] 
    selected = False 
    done = False 

    while not done: 
     for event in pg.event.get(): 
      if event.type == pg.QUIT: 
       done = True 
      elif event.type == pg.MOUSEBUTTONDOWN: 
       for rect in rect_list: 
        if rect.collidepoint(event.pos): 
         selected = True 
      elif event.type == pg.MOUSEBUTTONUP: 
       selected = False 
      elif event.type == pg.MOUSEMOTION: 
       if selected: 
        for rect in rect_list: 
         rect.y += event.rel[1] 

     screen.fill(BLACK) 
     for rect in rect_list: 
      pg.draw.rect(screen, RECT_COLOR, rect) 

     pg.display.flip() 
     clock.tick(30) 


if __name__ == '__main__': 
    pg.init() 
    main() 
    pg.quit() 
    sys.exit()