为什么我的精灵弹跳？

Question

我试图按照此视频：https://www.youtube.com/watch?v=pN9pBx5ln40&index=20&list=PLsk-HSGFjnaH5yghzu7PcOzm9NhsW0Urw

然而，当我运行我的程序我的性格是指仍然停留，但由于某种原因，它反弹

这是什么样子：https://gyazo.com/015b20c0e4ad64ff3905cbef5865eedc

在main.py

import pygame 
from map import * 
from char import * 

pygame.init() 

class game(): 
    def __init__(self): 
     self.width = 1280 
     self.height = 720 
     self.gameRunning = True 
     self.clock = pygame.time.Clock() 
     self.FPS = 60 
     self.screen = pygame.display.set_mode((self.width, self.height)) 
     self.loadMapData() 

    def update(self): 

     self.screen.fill(white) 
     self.screen.blit(self.map_img, (0,528)) 
     playerGroup.draw(self.screen) 
     pygame.display.update() 


    def gameLoop(self): 

     self.clock.tick(self.FPS) 
     self.event() 
     player1.move() 
     self.update() 

    def event(self): 

      for event in pygame.event.get(): 
       if event.type == pygame.QUIT: 
        self.gameRunning = False 

    def loadMapData(self): 

     self.map = TiledMap() 
     self.map_img = self.map.make_mapSurface() 
     for tile_object in self.map.gameMap.objects: 
      if tile_object.name == "Floor": 
       Collision(tile_object.x, tile_object.y + 528, tile_object.width, tile_object.height) 


g = game() 
player1 = player() 
while g.gameRunning == True: 
    g.gameLoop() 

map.py

import pygame 
import pytmx 
from char import * 

pygame.init() 

class TiledMap(): 
    def __init__(self): 
     self.gameMap = pytmx.load_pygame("CollisionMap.tmx") 
     self.mapwidth = self.gameMap.tilewidth * self.gameMap.width 
     self.mapheight = self.gameMap.tileheight * self.gameMap.height 

    def renderMap(self, surface): 
     for layer in self.gameMap.visible_layers: 
      if isinstance(layer, pytmx.TiledTileLayer): 
       for x,y,gid in layer: 
        tile = self.gameMap.get_tile_image_by_gid(gid) 
        surface.blit(tile, (x * self.gameMap.tilewidth, y * self.gameMap.tileheight)) 

    def make_mapSurface(self): 

     mapSurface = pygame.Surface((self.mapwidth, self.mapheight), pygame.SRCALPHA) 
     self.renderMap(mapSurface) 
     return mapSurface 

class Collision(pygame.sprite.Sprite): 
    def __init__(self, x, y, width, height): 
     self.groups = SolidGroup 
     pygame.sprite.Sprite.__init__(self, self.groups) 
     self.rect = pygame.Rect(x, y, width, height) 

char.py

import pygame 

pygame.init() 

black = (0, 0, 0) 
white = (255, 255, 255) 
red = (255, 0, 0) 
green = (0, 255, 0) 
blue = (0, 0, 255) 
playerGroup = pygame.sprite.Group() 
SolidGroup = pygame.sprite.Group() 

class player(pygame.sprite.Sprite): 
    def __init__(self): 
     self.groups = playerGroup 
     pygame.sprite.Sprite.__init__(self, self.groups) 
     self.image = pygame.Surface((50, 50)) 
     self.image.fill(blue) 
     self.rect = self.image.get_rect() 
     self.rect.center = (1280/2, 720/2) 
     self.position = pygame.math.Vector2(400, 300) 
     self.acceleration = pygame.math.Vector2(0, 0) 
     self.velocity = pygame.math.Vector2(0, 0) 
     self.friction = -0.18 

    def move(self): 
     self.acceleration = pygame.math.Vector2(0, 0.5) 
     key = pygame.key.get_pressed() 
     if key[pygame.K_RIGHT]: 
      self.acceleration.x = 1 
     if key[pygame.K_LEFT]: 
      self.acceleration.x = -1 

     self.acceleration.x += self.velocity.x * self.friction 
     self.velocity += self.acceleration 
     self.position += self.velocity + 0.5 * self.acceleration 

     hits = pygame.sprite.spritecollide(self, SolidGroup, False) 
     if hits: 
      self.position.y = hits[0].rect.top 
      self.velocity.y = 0 

     self.rect.midbottom = self.position 

Answer 1

的问题是，你的精灵被在平台上设置，当它击中这样的：

self.position.y = hits[0].rect.top 

不过是把它稍稍太高，因此，它再次下降等易修复：

self.position.y = hits[0].rect.top + 1