Difference between revisions of "love.touch.getPosition"
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=== Arguments === | === Arguments === | ||
− | {{param|userdata|id|The | + | {{param|light userdata|id|The identifier of the touch-press. Use [[love.touch.getTouches]], [[love.touchpressed]], or [[love.touchmoved]] to obtain touch id values.}} |
=== Returns === | === Returns === | ||
{{param|number|x|The position along the x-axis of the touch-press inside the window, in pixels.}} | {{param|number|x|The position along the x-axis of the touch-press inside the window, in pixels.}} | ||
Line 15: | Line 15: | ||
== Notes == | == Notes == | ||
The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels. | The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels. | ||
+ | |||
+ | == Examples == | ||
+ | === Draw a circle at each location in the window where a touch press is active. === | ||
+ | <source lang="lua"> | ||
+ | |||
+ | function love.draw() | ||
+ | local touches = love.touch.getTouches() | ||
+ | |||
+ | for i, id in ipairs(touches) do | ||
+ | local x, y = love.touch.getPosition(id) | ||
+ | love.graphics.circle("fill", x, y, 20) | ||
+ | end | ||
+ | end | ||
+ | </source> | ||
== See Also == | == See Also == | ||
* [[parent::love.touch]] | * [[parent::love.touch]] | ||
+ | * [[love.touch.getTouches]] | ||
+ | * [[love.touchpressed]] | ||
+ | * [[love.touchreleased]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
{{#set:Description=Gets the current position of the specified touch-press.}} | {{#set:Description=Gets the current position of the specified touch-press.}} | ||
== Other Languages == | == Other Languages == | ||
{{i18n|love.touch.getPosition}} | {{i18n|love.touch.getPosition}} |
Latest revision as of 18:22, 22 December 2015
Available since LÖVE 0.10.0 |
This function is not supported in earlier versions. |
Gets the current position of the specified touch-press, in pixels.
Contents
Function
Synopsis
x, y = love.touch.getPosition( id )
Arguments
light userdata id
- The identifier of the touch-press. Use love.touch.getTouches, love.touchpressed, or love.touchmoved to obtain touch id values.
Returns
number x
- The position along the x-axis of the touch-press inside the window, in pixels.
number y
- The position along the y-axis of the touch-press inside the window, in pixels.
Notes
The unofficial Android and iOS ports of LÖVE 0.9.2 reported touch-press positions as normalized values in the range of [0, 1], whereas this API reports positions in pixels.
Examples
Draw a circle at each location in the window where a touch press is active.
function love.draw()
local touches = love.touch.getTouches()
for i, id in ipairs(touches) do
local x, y = love.touch.getPosition(id)
love.graphics.circle("fill", x, y, 20)
end
end
See Also
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