Question

我目前正在使用pygame库在python中开发一个2D弹球游戏，我选择了掩码碰撞检测，这里是一个链接到一个帖子，它很好地解释了：

2D Collision detection for Pinball Game

我认为我做了所有事情，但它没有按照要求工作。

这是我的球的物理代码：

from math import *
from Constants import *

def Getcolor(ballx,bally,screen,resources):
    screen.blit(resources["CollisionMain"], (220, 0))
    color=screen.get_at((ballx,bally))
    colore=color[1]
    return colore

def UpdateBall(ball,color):
    ballx=ball[1][0]
    bally=ball[1][1]
    lastpos = ball[1][0], ball[1][1]
    velocity=ball[2]
    if  -FRICTION_BALL <= velocity <= FRICTION_BALL :
        velocity = 0
    else:
        velocity += FRICTION_BALL if velocity < 0 else -FRICTION_BALL
    ball[2] = velocity
    ball[1][0] += velocity
    vectorx = sin(color / 255 * 2 * pi)
    vectory = cos(color / 255 * 2 * pi)
    if ballx+Ball_width<screen_width:
        ballx=screen_width-Ball_width
    if (bally+Ball_len)>screen_lenght:
        bally=screen_lenght-Ball_len
        #ball[1][1] -= 10
    else:
        if color == 255:
            ball[1][1] += Gravity
        else:
            ball[1][0],ball[1][1]=lastpos
            ball[1][0] += vectorx
            ball[1][1] += vectory

def DrawBall(screen,ball,resources):
    screen.blit(ball[0],(ball[1][0],ball[1][1]))

这是我的游戏引擎代码：

import pygame
import sys
from pygame.locals import *
from Constants import *
from ball import *

def Init():
    pygame.init()
    screen = pygame.display.set_mode((screen_width,screen_lenght))
    pygame.display.set_caption('Supinball')
    pygame.key.set_repeat(150,150)
    pygame.mixer.init(44100, -16, 2, 1024)
    return screen

def LoadResources():
    resources= dict()
    resources["MainLayer"] = pygame.image.load("resources/images/main_layer.png")
    resources["Ball"] = pygame.image.load("resources/images/Ball.png")
    resources["CollisionMain"] = pygame.image.load("resources/images/collision_main.png")
    resources["CollisionSpec"] = pygame.image.load("resources/images/collision_special.png")
    resources["Rflipper"] = pygame.image.load("resources/images/right_flipper.png")
    resources["Lflipper"] = pygame.image.load("resources/images/left_flipper.png")
    resources["Spring"] = pygame.image.load("resources/images/spring.png")
    resources["Music"] = pygame.mixer.Sound("resources/sounds/music.ogg")
    resources["Coin"] = pygame.mixer.Sound("resources/sounds/Coin.wav")
    resources["Hit"] = pygame.mixer.Sound("resources/sounds/hit.wav")
    resources["Tilted"] = pygame.mixer.Sound("resources/sounds/tilted.wav")
    resources["GameOver"] = pygame.mixer.Sound("resources/sounds/GameOver.ogg")
    resources["Font"] = pygame.font.Font('resources/Vdj.ttf', 30)
    return resources


def GameLoop(screen,resources):
    gameRunning = True
    ball = [resources["Ball"],[300,20],0]
    fpsClock = pygame.time.Clock()
    while gameRunning:
        ev = GetEvent(ball)
        gameRunning = ev[GAME_RUNNING]
        #resources["Music"].play(-1)
        color=Getcolor(int(ball[1][0]), int(ball[1][1]), screen, resources)
        print(color)
        UpdateBall(ball,color)
        #screen.blit(resources["MainLayer"], (0,0))
        DrawBall(screen,ball,resources)
        pygame.display.update()
        fpsClock.tick(FPS)

def GetEvent(ball):
    ev = [True,False,False,False,False,False,False,False,False,False]
    for event in pygame.event.get():
        if event.type == QUIT:
            ev[GAME_RUNNING] = False
        if event.type == MOUSEBUTTONUP:
            mousepos = pygame.mouse.get_pos()
            ball[1][0],ball[1][1]=mousepos
        if event.type == KEYDOWN:
            if event.key == K_DOWN:#compress spring
                ev[KEY_DOWN] = True
            if event.key == K_UP: #relax spring
                ev[KEY_UP] = True
            if event.key == K_LSHIFT: #left flipper
                ev[KEY_LSHIFT] = True
            if event.key == K_RSHIFT: #right flipper
                ev[KEY_RSHIFT] = True
        if event.type == KEYUP:
            if event.key == K_q: #insert coin
                ev[KEY_Q] = True
            if event.key == K_SPACE: #launch ball
                ev[KEY_SPACE] = True
            if event.key == K_LEFT:#tilt left
                ev[KEY_LEFT] = True
            if event.key == K_RIGHT:#tilt right
                ev[KEY_RIGHT] = True
            if event.key == K_p:#pause
                ev[KEY_P] = True
    return ev

def DestroyGame():
    pygame.quit()

和常量代码：

#screen
screen_lenght = 256
screen_width= 600
#fps
FPS=100
#events
GAME_RUNNING = 0
KEY_Q = 1
KEY_DOWN = 2
KEY_UP = 3
KEY_SPACE = 4
KEY_LSHIFT = 5
KEY_RSHIFT = 6
KEY_RIGHT = 7
KEY_LEFT = 8
KEY_P = 9
#ball physics
FRICTION_BALL=0.5
Gravity=1.9
Ball_width=11
Ball_len=9

但是当我跑步时，球没有完全碰撞，它只与最黑暗的斑点相撞并穿过浅灰色

如果你看这张照片

球不应该通过保险杠但它确实如此 - 如果我的代码是垃圾，我很抱歉，我是初学者。 :)

以下是我想要实现的有效工作版本的YouTube链接：
https://www.youtube.com/watch?v=SXegewcVx8A

2D弹球面罩碰撞？

0 个答案: