love (简体中文)

当你开始用LÖVE编写游戏时, 需要了解几个最重要的API回调函数: love.load仅执行一次，用于初始化加载你的游戏, love.update用于管理你的游戏每一帧的状态, love.draw用于渲染你的游戏到屏幕.

为了处理玩家输入的信息以及呈现一个全方面体验的游戏,很多交互将会重写额外的回调函数.

LÖVE提供了默认的空回调函数，你可以通过对应的回调函数名在你自己的代码里重写这些函数:

-- 初始化矩形的一些默认值.
function love.load()
    x, y, w, h = 20, 20, 60, 20
end

-- 每一帧变大矩形的尺寸.
function love.update(dt)
    w = w + 1
    h = h + 1
end

-- 渲染颜色矩形.
function love.draw()
    love.graphics.setColor(0, 100, 100)
    love.graphics.rectangle("fill", x, y, w, h)
end

Modules（模块）

love.audio	Provides of audio interface for playback/recording sound.
love.data	Provides functionality for creating and transforming data.	11.0
love.event	Manages events, like keypresses.	0.6.0
love.filesystem	Provides an interface to the user's filesystem.
love.font	Allows you to work with fonts.	0.7.0
love.graphics	Drawing of shapes and images, management of screen geometry.
love.image	Provides an interface to decode encoded image data.
love.joystick	Provides an interface to connected joysticks.	0.5.0
love.keyboard	Provides an interface to the user's keyboard.
love.math	Provides system-independent mathematical functions.	0.9.0
love.mouse	Provides an interface to the user's mouse.
love.physics	Can simulate 2D rigid body physics in a realistic manner.	0.4.0
love.sound	This module is responsible for decoding sound files.
love.system	Provides access to information about the user's system.	0.9.0
love.thread	Allows you to work with threads.	0.7.0
love.timer	Provides high-resolution timing functionality.
love.touch	Provides an interface to touch-screen presses.	0.10.0
love.video	This module is responsible for decoding and streaming video files.	0.10.0
love.window	Provides an interface for the program's window.	0.9.0

Third-party modules（第三方模块）

lua-enet	Multiplayer networking module for games.	0.9.0
socket	Module for HTTP, TCP, and UDP networking.	0.5.0
utf8	Provides basic support for manipulating UTF-8 strings.	0.9.2

Functions（方法）

love.getVersion	Gets the current running version of LÖVE.	0.9.1
love.hasDeprecationOutput	Gets whether LÖVE displays warnings when using deprecated functionality.	11.0
love.isVersionCompatible	Gets whether the given version is compatible with the current running version of LÖVE.	0.10.0
love.setDeprecationOutput	Sets whether LÖVE displays warnings when using deprecated functionality.	11.0

Types（类型）

Data	The superclass of all data.
Object	The superclass of all LÖVE types.
Variant	The types supported by love.thread and love.event.

Callbacks（回调）

General（通用）

Config Files	Game configuration settings.
love.draw	Callback function used to draw on the screen every frame.
love.errhand	The error handler, used to display error messages.
love.errorhandler	The error handler, used to display error messages.	11.0
love.load	This function is called exactly once at the beginning of the game.
love.lowmemory	Callback function triggered when the system is running out of memory on mobile devices.	0.10.0
love.quit	Callback function triggered when the game is closed.	0.7.0
love.run	The main function, containing the main loop. A sensible default is used when left out.
love.threaderror	Callback function triggered when a Thread encounters an error.	0.9.0
love.update	Callback function used to update the state of the game every frame.

Joystick（操作杆）

love.gamepadaxis	Called when a Joystick's virtual gamepad axis is moved.	0.9.0
love.gamepadpressed	Called when a Joystick's virtual gamepad button is pressed.	0.9.0
love.gamepadreleased	Called when a Joystick's virtual gamepad button is released.	0.9.0
love.joystickadded	Called when a Joystick is connected.	0.9.0
love.joystickaxis	Called when a joystick axis moves.	0.9.0
love.joystickhat	Called when a joystick hat direction changes.	0.9.0
love.joystickpressed	Called when a joystick button is pressed.
love.joystickreleased	Called when a joystick button is released.
love.joystickremoved	Called when a Joystick is disconnected.	0.9.0

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