mac下用clion进行sdl2游戏开发de环境搭建

1. 故事背景

想从unity转unreal了,于是要使用c++进行开发。unreal引擎那么大,每次打开,我的小本都嗡嗡嗡的,想着不如用个轻量一些的引擎先开发吧,核心代码独立出来,到时候如果真要移植到unreal也方便。

在sdl2/sfml中纠结了一下,最终选择了文档相对较多的sdl2。本来试用了Xcode,但是实在是不习惯,感觉和JetBrains的编译器差太远了...决定还是用clion试一下。

但是到处看了各种参考资料,没有一篇能完全满足我的要求:

  • 1 在mac下开发
  • 2 使用c/c++进行开发
  • 3 用clion的CMake
  • 4 智能提示SDL2库方法

作为编程多年,但是c语言还停留在大学水平的开发,我还被迫学习了Cmake。

一番摸索完成后,决定自己写一篇,记录的同时,也造福其他需要的人。

话不多说,开始吧!

2. 利用homebrew安装sdl2

依次执行下面的命令就好了

  • 安装国内镜像的Homebrew,一路往下YES就行
$ /bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"
  • 安装sdl2
$ brew install sdl2_mixer 
  • 查看下sdl2库安装情况
$ brew info sdl2

根据安装的版本不同,可能得到不同的信息,下面是我的

sdl2: stable 2.0.16 (bottled), HEAD
Low-level access to audio, keyboard, mouse, joystick, and graphics
https://www.libsdl.org/
/usr/local/Cellar/sdl2/2.0.16 (91 files, 5.4MB) *
  Poured from bottle on 2021-08-27 at 05:51:01
From: https://mirrors.ustc.edu.cn/homebrew-core.git/Formula/sdl2.rb
License: Zlib
==> Options
--HEAD
	Install HEAD version
==> Analytics
install: 107,393 (30 days), 219,217 (90 days), 957,010 (365 days)
install-on-request: 10,041 (30 days), 19,802 (90 days), 91,778 (365 days)
build-error: 0 (30 days)

其中,第4行的/usr/local/Cellar/sdl2/2.0.16很有用,是我们安装sdl2库的位置,下面会用到。

3. 创建clion项目

我们分C项目和CPP项目。

创建项目的时候,记得选C Executable或者C++ Executable哦。

3.1 C项目

  • CMakeLists.txt内容
cmake_minimum_required(VERSION 3.20)
project(SimpleWindow C)

set(CMAKE_C_STANDARD 11)
set(SDL_DIR /usr/local/Cellar/sdl2/2.0.16/)
include_directories(${SDL_DIR}/include/)
link_directories(${SDL_DIR}/lib/)

add_executable(SimpleWindow main.c)

target_link_libraries(SimpleWindow SDL2 SLD2_test SDL2main)
  • main.c内容
#include "stdio.h"
#include <SDL2/SDL.h>

const int WIDTH = 400, HEIGHT = 400;

int main() {
    if (SDL_Init(SDL_INIT_EVERYTHING)) {
        printf("Can not init video");
        return 1;
    }

    SDL_Window *win = SDL_CreateWindow(
            "Hello world",
            SDL_WINDOWPOS_CENTERED,
            SDL_WINDOWPOS_CENTERED, WIDTH, HEIGHT,
            SDL_WINDOW_ALLOW_HIGHDPI
    );

    if (win == NULL) {
        printf("Can not create window");
        return 1;
    }

    SDL_Event windowEvent;
    while(1) {
        if (SDL_PollEvent(&windowEvent)) {
            if (SDL_QUIT == windowEvent.type) {
                printf("SDL quit!!");
                break;
            }
        }
    }

    SDL_DestroyWindow(win);
    SDL_Quit();
    return 0;
}

都创建好了之后,点击运行,可以看到下面的窗口

3.2 CPP项目

  • CMakeLists.txt内容
cmake_minimum_required(VERSION 3.20)
project(SimpleWindow)

set(CMAKE_C_STANDARD 11)
set(SDL_DIR /usr/local/Cellar/sdl2/2.0.16/)
include_directories(${SDL_DIR}/include/)
link_directories(${SDL_DIR}/lib/)
add_executable(SimpleWindow main.cpp)
link_libraries(SDL2)
target_link_libraries(SimpleWindow SDL2  SDL2main)
  • main.cpp内容
#include <iostream>
#include <SDL2/SDL.h>
using namespace std;

const int WIDTH = 400, HEIGHT = 400;

int main() {
    if (SDL_Init(SDL_INIT_EVERYTHING)) {
        cout << "SDL could not initialized with error: " <<  SDL_GetError() << endl;
        return 1;
    }

    SDL_Window *win = SDL_CreateWindow(
            "Hello world",
            SDL_WINDOWPOS_CENTERED,
            SDL_WINDOWPOS_CENTERED, WIDTH, HEIGHT,
            SDL_WINDOW_ALLOW_HIGHDPI
    );

    if (win == NULL) {
        cout << "SDL could not create window with error: " <<  SDL_GetError() << endl;
        return 1;
    }

    SDL_Event windowEvent;
    while(true) {
        if (SDL_PollEvent(&windowEvent)) {
            if (SDL_QUIT == windowEvent.type) {
                cout << "SDL quit!!" << endl;
                break;
            }
        }
    }

    SDL_DestroyWindow(win);
    SDL_Quit();
    return 0;
}

参考文章
mac安装brew(亲测)
SDL2 环境构建 (macOS + CLion + SDL2)
SDL2:第一个程序(Mac)

posted @ 2021-08-27 06:48  亚楠老猎人  阅读(939)  评论(0编辑  收藏  举报