当切换到案例1时,切换语句切换到案例2
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我有一个带菜单的游戏,当我访问菜单时,它会带我到另一个sf::View
,当我退出菜单时,它应该返回到sf::View
我当前正在使用开关和case语句。我没有把我带回currentroom
,当我在StartRoom
并进入菜单时它应该设置为1,它让我进入LevelTwo
并运行Room2()
。因此,当我在第一个房间时,当时电流从1到2,所以当我通过按'q'访问菜单时它返回到room2而不是startroom。此外,当我用WhatRoom(currentroom);
替换WhatRoom(1);
同样的事情发生时,它运行Room2(),我被送到第二个房间。感谢您的帮助,如果您有任何疑问,我会尽力回答。
main.cpp中
#include <iostream>
#include <SFML/Graphics.hpp>
#include "Character.h"
#include "Sprite.h"
#include "Computer.h"
#include "Window.h"
#include "EventManager.h"
//Use std
using namespace std;
//Boolean to determine if screen will scroll
Sprite computer("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/CompSprite.png", 1200, 100);
Sprite battery("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery4.png", 0, 0);
Sprite wooddoor("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/wood_door.png", 1200, 1350);
//boolean for whether to show weapon or not
bool showweapon;
//main loop
int main() {
window.setKeyRepeatEnabled(false);
bool showBox = false;
//Setting up the dungeon back-round
dungeon.loadFromFile("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/DungeonBack.png");
if (LevelOne == true){
backround.setTexture(dungeon); //Replace with function that determines backround
}
while (window.isOpen()){
// check all the window's events that were triggered since the last iteration of the loop
sf::Event event;
while (window.pollEvent(event)){
// "close requested" event: we close the window
if (event.type == sf::Event::Closed)
window.close();
}
//Movement
if (moveChar == true){
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left)){
player.left();
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right)){
player.right();
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up)){
player.forward();
}
if (sf:: Keyboard::isKeyPressed(sf::Keyboard::Down)){
player.backward();
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::LShift))
{
player.Highspeed();
}
else{
player.Lowspeed();
}
}
if (batstat == 4){
battery.changeimage("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery4.png");
}
if (batstat == 3){
battery.changeimage("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery3.png");
}
if (batstat == 2){
battery.changeimage("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery2.png");
}
if (batstat == 1){
battery.changeimage("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery1.png");
}
if (batstat == 0){
battery.changeimage("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/battery0.png");
}
if (player.getSprite().getGlobalBounds().intersects(computer.getSprite().getGlobalBounds())){
show = false;
player.hascomp = true;
}
if (player.getSprite().getGlobalBounds().intersects(wooddoor.getSprite().getGlobalBounds()) and show == false){
WhatRoom(2);
showBox = true;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)){
moveChar = true;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q) and InMenu == false){
WhatMenu(2);
}
else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q) and InMenu == true){
InMenu = false;
WhatRoom(currentroom);
}
//draw and window stuff
window.clear(sf::Color(0, 0, 0));
window.draw(backround);
if (show == true){
window.draw(computer.getSprite());
}
if (show == false){
window.draw(battery.getSprite());
window.draw(wooddoor.getSprite());
}
window.draw(player.getSprite());
window.display();
window.setFramerateLimit(70);
}
}
EventManager.h
enum Levels{
StartRoom, LevelTwo
};
Levels room = StartRoom;
int currentroom = 1;
void Room2(){
window.setView(leveltwo);
backround.setPosition(0, 5000);
generalback.loadFromFile("/Users/username/Desktop/Xcode /NewGame/ExternalLibs/Sprites/DungeonBackGeneral.png");
backround.setTexture(generalback);
player.relocate(0, 5000);
down_limit = 6410;
right_limit = 2410;
up_limit = 5000;
left_limit = 0;
}
void WhatRoom(int TheLevel){
switch (room){
case StartRoom:
currentroom = 1;
window.setView(start);
backround.setTexture(dungeon);
if (TheLevel == 2){
LevelOne = false;
cout << "hello";
room = LevelTwo;
break;
}
case LevelTwo:
cout << "HELLO";
currentroom = 2;
backround.setTexture(generalback);
Room2();
break;
}
};
enum States{
compmenu, mainmenu, NoMenu
};
States menu = NoMenu;
void CompMenu(){
window.setView(ComputerScreen);
InMenu = true;
}
void WhatMenu(int TheMenu){
switch (menu){
case compmenu:
CompMenu();
break;
case mainmenu:
break;
case NoMenu:
if (TheMenu == 2){
menu = compmenu;
}
break;
if (TheMenu == 3){
menu = mainmenu;
}
break;
}
}
答案
你在break
分支的末尾错过了一个case StartRoom:
。进入这个功能:
void WhatRoom(int TheLevel){
switch (room){
case StartRoom:
currentroom = 1;
window.setView(start);
backround.setTexture(dungeon);
if (TheLevel == 2){
LevelOne = false;
cout << "hello";
room = LevelTwo;
break;
}
/*
At this point you should break this branch, otherwise
case LevelTwo brach will be executed too
*/
case LevelTwo:
cout << "HELLO";
currentroom = 2;
backround.setTexture(generalback);
Room2();
break;
}
};
这是switch语句中的常见错误。我建议你总是写下所有可能的案例及其各自的休息时间。
有一些special cases,你可能想要删除那些break
线。
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