问创建具有指定最小距离和随机方向的图像对象的随机模式

EN

import random
import pygame

WHITE = (255,255,255)
BLACK = (0  ,0  ,0  )
RED = (255,0,0)

PLAYERS = []

class Player():

    def __init__(self, image, x=0, y=0):

        self.image = pygame.image.load(image).convert_alpha() #.convert()
        #self.image.set_colorkey(WHITE)
        self.rect = self.image.get_rect()

        self.rect.centerx = x
        self.rect.centery = y


        #self.image.set_colorkey(BLACK)


    #------------

    def draw(self, screen):
        screen.blit(self.image, self.rect)

    #------------

    def update(self):
        #randomly rotate
        angle = random.randint(0,360)
        #self.image = pygame.transform.rotate(self.image, angle)
        self.image = pygame.transform.rotozoom(self.image, angle, 1)

        # here change randomly positon
        self.rect.topleft = random.randint(60,220+1), random.randint( 0, 475+1)
        searchAgain = 0
        while (searchAgain < 1):
            self.rect.topleft = random.randint(60,220+1), random.randint( 0, 475+1)
            searchAgain = 1

            for p in PLAYERS:
                # creating masks for the images
                myImage_mask = pygame.mask.from_surface(self.image)
                myOtherImage_mask = pygame.mask.from_surface(p.image)

                # this is where the images are
                myImage_rect = self.rect
                myOtherImage_rect = p.rect

                # this is where we check for pixel perfect collision
                # observe the order mask variables are used in calculating offset and in overlap method
                offset_x, offset_y = (myOtherImage_rect.left - myImage_rect.left), (myOtherImage_rect.top - myImage_rect.top)
                print (offset_x, offset_y )
                if (myImage_mask.overlap(myOtherImage_mask, (offset_x, offset_y)) != None):
                    print 'Collision Detected!'

                    #if we detect collision of players stay in the loop so that we get another pair of coordinates for the new player
                    searchAgain = 0
                else:
                    print 'None'



class Game():

    def __init__(self):

        pygame.init()

        self.screen = pygame.display.set_mode((800,600))

        self.background = pygame.image.load("background.jpg").convert()
        self.multi_players = []

        # create stimuli

        for i in range(1,10):
            player = Player("stim"+str(i)+".png")
            #player = Player("stim6.gif")
            player.update() # set random position on start
            PLAYERS.append(player)

            self.multi_players.append(player)

    #------------

    def run(self):

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

        while RUNNING:

            # --- events ---

            for event in pygame.event.get():

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

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

                    # changes position when key is pressed

                    for player in self.multi_players:
                        player.update()

            # --- updates ---- 

            # place for updates

            # --- draws ---

            self.screen.fill(WHITE)

            self.screen.blit(self.background, self.background.get_rect())

            for player in self.multi_players:
                player.draw(self.screen)

            pygame.display.flip()

            # --- FPS ---

            clock.tick(20)

        # --- quit ---

        pygame.quit()

Game().run()

def test_overlapping_with_other_surfaces(self, myRandomlyPlacedImage):
    """ Tests if the randomly placed image overlap with an already existing image. """
    for surface in self.surface:
        if surface.get_rect.colliderect(myRandomlyPlacedImage.get_rect):
            return False
    return True

def randomly_rotate_image(self, image):
    """ Returns the image randomly rotated. """
    angle = randint(0,360)
    return pygame.transform.rotate(image, angle)