接下来的几篇 demo 都很简单,一片一片的写没什么意义,说起来之前三篇其实也可以合起来,事已至此,先这样吧

    [5] 获取鼠标按键,代码本身就已经做了很好地说明了:

    function love.load()
       love.graphics.setFont(love.graphics.newFont(11))
    end
    function love.draw()
        -- Left mouse button.
        if love.mouse.isDown(1) then
            love.graphics.print("Left mouse button is down", 50, 50)
        end
        -- Right mouse button.
        if love.mouse.isDown(2) then
            love.graphics.print("Right mouse button is down", 50, 100)
        end
        -- Middle mouse button.
        if love.mouse.isDown(3) then
            love.graphics.print("Middle mouse button is down", 50, 75)
        end 
    end
    

    [6] 设置鼠标可见性,配合之前说的图片跟随鼠标,就可以设置自定义鼠标样式了:

    function love.load()
        -- Hide mouse on startup.
        love.mouse.setVisible(false)
        love.graphics.setFont(love.graphics.newFont(11))
    end
    -- Toggle cursor visibility.
    function love.keypressed(k)
        if k == "v" then
        if love.mouse.isVisible() then
            love.mouse.setVisible(false)
        else
            love.mouse.setVisible(true)
        end
        end
    end
    function love.draw()
        love.graphics.print("Press V to toggle visibility.", 50, 50)
    end
    

    需知道的是,这个 love.keypressed 方法,只需要声明,不需要调用,可以想象这个方法是一直在线的。

    [7] 挂起,作用大概就是阻塞 update 方法吧(示例看不出个啥效果)

    function love.update(dt)
        -- Sleeps 10ms after each udpate. By doing this,
        -- CPU time is made available for other processes,
        -- and your OS will love you for it.
        love.timer.sleep(0.01)
    end
    

    [8] 忘了咋翻译了,分别代表了一秒钟的帧数和两帧时间间隔

    function love.load()
        love.graphics.setFont(love.graphics.newFont(11))
    end
    function love.draw()
        -- Draw the current FPS.
        love.graphics.print("FPS: " .. love.timer.getFPS(), 50, 50)
        -- Draw the current delta-time. (The same value
        -- is passed to update each frame).
        love.graphics.print("dt: " .. love.timer.getDelta(), 50, 100)
    end
    

    [9] 获取时间毫秒数(至于从何开始计算的就不清楚了,自查 Wiki 吧)

    function love.load()
        -- Get time before the code to be timed.
        tstart = love.timer.getTime()
        -- Load 10 fonts.
        for i=13,22 do
            local f = love.graphics.newFont(i)
            love.graphics.setFont(f)
        end 
        -- Get time after.
        tend = love.timer.getTime()
    end
    function love.draw()
        love.graphics.print("Spent ".. (tend-tstart) .. " seconds loading 10 fonts.", 50, 50)
    end
    

    [10] 获取按键

    function love.load()
        love.graphics.setFont(love.graphics.newFont(11))
    end
    
    function love.draw()
        -- Checks whether the return key is down or not.
        if love.keyboard.isDown("return") then
            love.graphics.print("The return key is down.", 50, 50)
        else
            love.graphics.print("The return key isn't down.", 50, 50)
        end
    end
    

    下一篇预告:创建使用动画
    代码挺多的,需要好好看看