我正在Linux上创建Snake游戏。当我意识到需要在iostream
中包含getch()
函数时,我才使用ncruses.h
。我有一个绘制方法,该方法是在使用std::cout
的同时将所有电路板元素打印到控制台,并且每个字符都正确显示。我有整个董事会。但是,当我切换到ncurses并将所有的std::cout
重写为printf
()时,程序就会开始仅编写电路板的一部分。全部在循环中完成,并且重新绘制每个循环板。
我是新手,所以请客气。
这是我的main.cpp
#include <iostream>
#include <chrono>
#include <thread>
#include <ncurses.h>
#include <stdio.h>
#include "board.h"
#include "consoledraw.h"
#include "snake.h"
#include "fruit.h"
void sleepThread()
{
static constexpr int SLEEP_MS = 1000;
std::this_thread::sleep_for(std::chrono::milliseconds(SLEEP_MS));
}
int main()
{
std::cout << "\e[8;30;140t"; // set console window size
Board _board;
Snake _snake;
consoledraw draw;
Fruit _fruit;
_board.setBoardSize(64, 36); // cca 16:9
_board.setDefaultItemType();
_board.makeSnake(_snake);
_board.setSnakeOnBoard(_snake);
_board.makeFruit(_fruit);
_board.setFruitOnBoard(_fruit);
int score = 0;
initscr();
setlocale(LC_ALL, "");
// raw();
cbreak();
curs_set(0);
noecho();
scrollok(stdscr, TRUE);
keypad(stdscr, TRUE);
while (true)
{
draw.redraw(_board);
// printf("Your score is: \r\v"); // TODO << score << std::endl;
sleepThread();
_board.clearBoard();
_snake.moveSnake(_snake);
if (_snake.checkSelfCollision(_snake) == true)
{
draw.clearConsole();
printf("Game Over!\n");
return 0;
};
if (_snake.eatFood(_fruit) == true)
{
_board.makeFruit(_fruit);
_board.setFruitOnBoard(_fruit);
score++;
}
_board.setSnakeOnBoard(_snake);
_board.setFruitOnBoard(_fruit);
}
endwin();
return 0;
}
这是我的consoledraw.cpp
#include "consoledraw.h"
consoledraw::consoledraw()
{
}
void consoledraw::redraw(Board &board)
{
clearConsole();
drawBoard(board);
}
void consoledraw::clearConsole()
{
// Kompletne vymaze celou konzoli a nasrtavi kurzor do leveho horniho rohu.
refresh();
}
void consoledraw::drawBoard(Board &board)
{
auto b = board.getBoard();
// Top border line
drawHorizontalBorderLine(b[0].size(), true);
// Board
for (unsigned int y = 0; y < b.size(); y++)
{
printf(LINE_VERTICAL); // border line
for (unsigned int x = 0; x < b[y].size(); x++)
{
drawSymbol(b[y][x]);
}
printf(LINE_VERTICAL"\r\v"); // border line + newline
}
// Down border line
drawHorizontalBorderLine(b[0].size(), false);
}
void consoledraw::drawSymbol(ItemType itemType)
{
if (itemType == ItemType::Empty)
{
printf(BLOCK_TRANSPARENT);
}
else if (itemType == ItemType::Tsss)
{
printf(BLOCK_MEDIUM_SHADE);
}
else if (itemType == ItemType::Food)
{
printf(BLOCK_LIGHT_SHADE);
}
else if (itemType == ItemType::TsssHead)
{
printf(BLOCK_DARK_SHADE);
}
}
void consoledraw::drawHorizontalBorderLine(unsigned long boardWidth, bool isTop)
{
// Left corner
if (isTop)
{
printf(LINE_UPLEFT_CORNER);
}
else
{
printf(LINE_DOWNLEFT_CORNER);
}
// Line
for (unsigned int i = 0; i < boardWidth; i++)
{
printf(LINE_HORIZONTAL);
}
// Right corner
if (isTop)
{
printf(LINE_UPRIGHT_CORNER);
}
else
{
printf(LINE_DOWNRIGHT_CORNER);
}
printf("\r\v");
}
这是使用ncurses时得到的信息:
<< img src =“ https://image.soinside.com/eyJ1cmwiOiAiaHR0cHM6Ly9pLnN0YWNrLmltZ3VyLmNvbS84Ym5FMi5wbmcifQ==” alt =“在此处输入图像描述”>
这是我使用iostream的结果:
<< img src =“ https://image.soinside.com/eyJ1cmwiOiAiaHR0cHM6Ly9pLnN0YWNrLmltZ3VyLmNvbS9URWFxYS5wbmcifQ==” alt =“在此处输入图像描述”>
C库(printf()
)和C ++库(std::cout
)缓冲它们的输出-尽管默认情况下C和C ++库使它们的缓冲区同步。
ncurses库执行原始(无缓冲)输出,有时会封装带内控制序列。如果通过C或C ++库和ncurses库将输出混合到同一设备,您将在屏幕上看到垃圾。就像你一样。
您应该使用ncurses库或标准库only来处理来自终端的输入/输出。不要混合它们。