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 (简体中文)	提供一个用来创建音效的接口.
love.filesystem (简体中文)	Provides an interface to the user's filesystem.
love.font (简体中文)	有了这个就可以用字体啦.	0.7.0
love.graphics (简体中文)	绘制图形图片，管理屏幕显示.
love.image (简体中文)	为图像数据提供接口
love.keyboard (简体中文)	Provides an interface to the user's keyboard.
love.mouse (简体中文)	提供鼠标接口的模块.
love.physics (简体中文)	能够真实地模拟2D刚体的物理性质。	0.4.0
love.sound (简体中文)	This module is responsible for decoding sound files.
love.thread (简体中文)	Allows you to work with threads.	0.7.0

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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