我再次遇到Pygame事件的麻烦（Pygame seems to "avoid" loop
我似乎无法在事件循环中检测到缩进条件：
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == MOUSEBUTTONDOWN:
print 'mb'
if event.type == KEYDOWN: #NOT DETECTED
print 'keydown'
if event.key == K_e:
print 'key_e_pressed'
if event.type == variables.set_ennemies_dest:
print 'moves
我确保我正在使用event.type和event.key，我的缩进是正确的。我从那里删除了所有代码，并用print语句替换它，以确保问题不是来自其他地方。
非常欢迎任何帮助！
如果上面看起来很好，这是我的完整游戏循环：
import pygame, sys, variables
from pygame.locals import *
from classes import *
from instances import *
from functions import *
pygame.init()
clock = pygame.time.Clock()
pygame.time.set_timer(variables.set_ennemies_dest, 10000) #for ennemi movement
#game loop
while True:
clock.tick(60)
variables.screen.fill((0,0,0)) #make background black
for event in pygame.event.get(): #setting up quit
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == MOUSEBUTTONDOWN:
get_offset(hero,event) # sets the movement offset for the iteration
print 'mb'
if event.type == KEYDOWN:
print 'keydown'
if event.key == K_e:
for i in variables.item_list:
i.use(hero)
if event.type == variables.set_ennemies_dest:
print 'moves'
for o in variables.char_list:
if isinstance(o, Ranger): #moves characters
o.set_rand_dest()
for o in variables.char_list:
if isinstance(o, Ranger): #moves characters
o.move()
#offset checks
group_collision_check(variables.all_sprites_list,hero) #edits the offest based on hero collision
group_offset(variables.building_list) #new building position using offset
group_push(variables.item_list,hero)
scroll_map.offset() #offsets grass background map
group_offset(variables.ennemi_list)
variables.screen.blit(scroll_map.image, scroll_map.rect) # blits the grass map to new pos
variables.building_list.draw(variables.screen) #blits the buildings to new pos
#blitting characters
variables.screen.blit(hero.image, hero.rect) #blits hero to screen center
for o in variables.ennemi_list:
variables.screen.blit(o.image, o.rect)
variables.item_list.draw(variables.screen)
pygame.display.update()
variables.offset_time -= 1 #removes on step from the offset counter to keep track of when
#offset needs to be reset to 0, i.e. position is reached
答案 0 :(得分：1)
import java.util.ArrayList;
import java.util.Scanner;
import java.lang.*;
public class ContactDatabase
{
private ArrayList<Contact> contacts; // ArrayList of contact
private static final int QUIT = 0; // Menu choices
private static final int ADD = 1;
private static final int LISTALL = 2;
private static final int SEARCH = 3;
private static final int DELETE = 4;
/**
* Default constructor - make a new ArrayList object with parameter type Contact
*/
ContactDatabase()
{
contacts = new ArrayList<Contact>();
}
/**
* inputContact inputs contact information from the keyboard.
* It then stores this new contact in the contacts ArrayList.
*/
public void inputContact()
{
Scanner input = new Scanner(System.in);
System.out.println("Please enter first and last names: ");
String firstName = input.next();
String lastName = input.nextLine();
/* while (input != null || input != " ") {
//firstLast = input.nextLine();
}
contacts.add(firstName);
contacts.add(lastName);
*/
System.out.println("Now enter " + firstName + " " + lastName + "\'s email address: ");
String emailAddress = input.nextLine();
if (emailAddress.indexOf('@') < 0) {
System.out.println("No '@' in email address\n Please enter a correct email address: ");
}
if (emailAddress.indexOf('.') < 0) {
System.out.println("No '.' in email address!");
} else {
//emailAddress = input.nextLine();
System.out.println("Email address accepted!");
}
System.out.println("Please enter " + firstName + " " + lastName + "\'s phone number: ");
String phoneNumber = input.nextLine();
boolean number = false;
int n = 0;
while (n < phoneNumber.length()) {
char c = phoneNumber.charAt(n);
if (!(c >= '0' && c <= '9'))
number = false;
n++;
}
number = true;
phoneNumber = phoneNumber.replaceAll("\\-","");
phoneNumber = phoneNumber.replaceAll("\\(","");
phoneNumber = phoneNumber.replaceAll("\\)","");
System.out.println("Phone number accepted.");
Contact newContact = new Contact(firstName, lastName, phoneNumber, emailAddress);
contacts.add(newContact);
System.out.println(firstName + "" + lastName + " has been added as a contact.");
}
/**
* displayAll iterates through the ArrayList of contacts and outputs each one
* to the screen.
*/
public void displayAll()
{
System.out.println("Your contacts are: ");
for (Contact c : contacts)
{
if (contacts.isEmpty()) {
System.out.println("No contacts.");
} else {
System.out.println(c);
}
}
}
/**
* displayMatch inputs a keyword from the user.
* It then iterates through the ArrayList of contacts and outputs each one
* to the screen if the contact information contains the keyword.
*/
public void displayMatch()
{
System.out.println("Enter keyword: ");
Scanner input = new Scanner(System.in);
String in = input.next();
for (Contact c : contacts)
{
if (in.equals(c)) {
System.out.println(c);
} else {
System.out.println("No matches.");
}
}
}
/**
* deleteMatch inputs a keyword from the user.
* It then iterates through the ArrayList of contacts and asks the user
* if the contact should be deleted, if the contact information contains the keyword.
*/
public void deleteMatch()
{
System.out.println("Enter keyword: ");
Scanner input = new Scanner(System.in);
String in = input.next();
for (Contact c : contacts)
{
if (in.equals(c)) {
System.out.println("Should " + c + " be deleted? (type 'YES' or 'Y')");
//in = input.nextLine();
boolean done = false;
while (! done)
{
if (in.equalsIgnoreCase("yes") || in.equalsIgnoreCase("y")) {
contacts.remove(c);
} else {
done = true;
}
}
} else {
System.out.println("No matches!");
}
}
}
// Main class
public static void main(String[] args)
{
ContactDatabase cdb = new ContactDatabase();
Scanner scan = new Scanner(System.in);
int choice = ADD;
// Main menu
while (choice != QUIT)
{
System.out.println();
System.out.println("Choose from the following:");
System.out.println("0) Quit");
System.out.println("1) Add new contact");
System.out.println("2) List all contacts");
System.out.println("3) Search contacts by keyword and display");
System.out.println("4) Search contacts by keyword and remove");
choice = scan.nextInt();
switch (choice)
{
case ADD: cdb.inputContact();
break;
case LISTALL: cdb.displayAll();
break;
case SEARCH: cdb.displayMatch();
break;
case DELETE: cdb.deleteMatch();
break;
}
}
}
/**
* The inner class, Contact, stores the details for a single contact.
* There is no error checking on any of the input. Whatever string is
* passed in for a given attribute is accepted.
*/
class Contact
{
private String first, last, phone, email;
/**
* Constructors.
*/
public Contact()
{
}
public Contact(String first, String last, String phone, String email)
{
this.first = first;
this.last = last;
this.phone = phone;
this.email = email;
}
/*
* Accessor Methods
*/
public String getFirst()
{
return first;
}
public String getLast()
{
return last;
}
public String getPhone()
{
return phone;
}
public String getEmail()
{
return email;
}
/*
* Mutator Methods
*/
public void setFirst(String first)
{
this.first = first;
}
public void setLast(String last)
{
this.last = last;
}
public void setPhone(String phone)
{
this.phone = phone;
}
public void setEmail(String em)
{
this.email = em;
}
/*
* Return all fields concatenated into a string
*/
public String toString()
{
return last + ", " + first + ". " + phone + ", " + email;
}
public boolean equals(Object otherObject)
{
if (otherObject ==null)
{
return false;
}
else if (getClass() != otherObject.getClass())
{
return false;
}
else
{
Contact otherContact = (Contact)otherObject;
return (first.equals(otherContact.first) &&
last.equals(otherContact.last)&&
phone.equals(otherContact.phone)&&
email.equals(otherContact.email));
}
}
} // end inner class, Contact
} // end class, ContactDatabase
为您的代码添加了评论，以解决您遇到的问题。在一个坚果壳中，你的一些if语句永远不会像你现在的结构一样真实。
编辑：
event.get（）列表中的每个事件都将是一个单独的实体。所以它不能同时是一个mousebuttondown事件和一个keydown事件。每个人都将成为他们自己的活动。如果你想测试这两个条件，你可能不得不依靠bool切换来测试两个事件何时发生。像这样：
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == MOUSEBUTTONDOWN:
print 'mb'
if event.type == KEYDOWN: # This will NEVER be true. If the event is a mouse button down event, it will never be a keydown event. Solution? Unindent!
print 'keydown'
if event.key == K_e: # which means this can also never be true.
print 'key_e_pressed'
if event.type == variables.set_ennemies_dest: # have a feeling this is a typo "ennemies dest"
print 'moves