Difference between revisions of "love.touch.getPosition"

m
m
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 ==

Revision as of 22:57, 30 May 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.

Function

Synopsis

x, y = love.touch.getPosition( id )

Arguments

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

Other Languages