Difference between revisions of "love.keypressed"

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Callback function triggered when a key is pressed.
 
Callback function triggered when a key is pressed.
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按下任意按键将触发该回调函数
 
== Function ==
 
== Function ==
 
{{newin|[[0.9.0]]|090|type=variant}}
 
{{newin|[[0.9.0]]|090|type=variant}}

Revision as of 06:24, 22 June 2014

Callback function triggered when a key is pressed. 按下任意按键将触发该回调函数

Function

Available since LÖVE 0.9.0
This variant is not supported in earlier versions.

Synopsis

love.keypressed( key, isrepeat )

Arguments

KeyConstant key
Character of the key pressed.
boolean isrepeat
Whether this keypress event is a repeat. The delay between key repeats depends on the user's system settings.

Returns

Nothing.

Notes

Key repeat needs to be enabled with love.keyboard.setKeyRepeat for repeat keypress events to be received.

Function

Removed in LÖVE 0.9.0
Unicode text input is now handled separately via love.textinput.

Synopsis

love.keypressed( key, unicode )

Arguments

KeyConstant key
Character of the key pressed.
number unicode
The unicode number of the key pressed.

Returns

Nothing.

Examples

Exit the game when the player presses the Escape key, using love.event.quit.

function love.keypressed(key)
   if key == "escape" then
      love.event.quit()
   end
end

Record and print text the user writes (0.8.0 and below.)

function love.load()
    text = "Type away! -- "
end

function love.keypressed(key, unicode)
    -- ignore non-printable characters (see http://www.ascii-code.com/)
    if unicode > 31 and unicode < 127 then
        text = text .. string.char(unicode)
    end
end

function love.draw()
    love.graphics.printf(text, 0, 0, 800)
end

See Also


Other Languages