Lua-SDL2 开源项目教程

Lua-SDL2 开源项目教程

luasdl2A pure C binding of SDL 2.0 for Lua 5.1, Lua 5.2, and LuaJIT.项目地址:https://gitcode.com/gh_mirrors/lu/luasdl2

1. 项目的目录结构及介绍

Lua-SDL2 项目的目录结构如下：

luasdl2/
├── docs/
├── examples/
├── include/
├── src/
├── tests/
├── INSTALL.md
├── LICENSE
├── README.md
└── lua-sdl2-scm-0.rockspec

目录介绍

• docs/: 包含项目的文档文件。
• examples/: 包含使用 Lua-SDL2 的示例代码。
• include/: 包含项目的头文件。
• src/: 包含项目的源代码文件。
• tests/: 包含项目的测试代码。
• INSTALL.md: 安装指南。
• LICENSE: 项目的许可证文件。
• README.md: 项目介绍和基本使用说明。
• lua-sdl2-scm-0.rockspec: LuaRocks 的配置文件。

2. 项目的启动文件介绍

Lua-SDL2 项目的启动文件通常是 examples/ 目录下的示例代码文件。例如，examples/basic.lua 是一个基本的启动文件，展示了如何使用 Lua-SDL2 创建一个窗口和渲染简单的图形。

示例代码

local SDL = require 'SDL'
local GL = require 'SDL.GL'

SDL.init { SDL.flags.Video }

local window = SDL.createWindow {
    title = "Hello World",
    width = 640,
    height = 480,
    flags = { [SDL.window.OpenGL] = true }
}

local context = SDL.GL.createContext(window)

SDL.GL.swapWindow(window)

SDL.delay(3000)

SDL.GL.deleteContext(context)
window:destroy()
SDL.quit()

3. 项目的配置文件介绍

Lua-SDL2 项目的配置文件主要是 lua-sdl2-scm-0.rockspec，这是一个 LuaRocks 的配置文件，用于定义项目的依赖、版本和其他元数据。

配置文件示例

package = "lua-sdl2"
version = "scm-0"
source = {
    url = "git://github.com/Tangent128/luasdl2.git"
}
description = {
    summary = "A pure C binding of SDL 2.0 for Lua 5.1, Lua 5.2, and LuaJIT",
    homepage = "https://github.com/Tangent128/luasdl2",
    license = "ISC"
}
dependencies = {
    "lua >= 5.1",
    "SDL2"
}
build = {
    type = "builtin",
    modules = {
        ["SDL"] = "src/SDL.c",
        ["SDL.audio"] = "src/audio.c",
        ["SDL.events"] = "src/events.c",
        ["SDL.filesystem"] = "src/filesystem.c",
        ["SDL.gamecontroller"] = "src/gamecontroller.c",
        ["SDL.gesture"] = "src/gesture.c",
        ["SDL.haptic"] = "src/haptic.c",
        ["SDL.hints"] = "src/hints.c",
        ["SDL.joystick"] = "src/joystick.c",
        ["SDL.keyboard"] = "src/keyboard.c",
        ["SDL.loadso"] = "src/loadso.c",
        ["SDL.log"] = "src/log.c",
        ["SDL.messagebox"] = "src/messagebox.c",
        ["SDL.mouse"] = "src/mouse.c",
        ["SDL.mutex"] = "src/mutex.c",
        ["SDL.power"] = "src/power.c",
        ["SDL.rect"] = "src/rect.c",
        ["SDL.render"] = "src/render.c",
        ["SDL.rwops"] = "src/rwops.c",
        ["SDL.shape"] = "src/shape.c",
        ["SDL.surface"] = "src/surface.c",
        ["SDL.syswm"] = "src/syswm.c",
        ["SDL.thread"] = "src/thread.

luasdl2A pure C binding of SDL 2.0 for Lua 5.1, Lua 5.2, and LuaJIT.项目地址:https://gitcode.com/gh_mirrors/lu/luasdl2