Difference between revisions of "Global Command: getCursorPos"

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{| class="toccolours mw-collapsible mw-collapsed ts"
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Get the current position of the mouse cursor.
! Function History
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Note that the function returns the cursor position in relation to the screen instead of in relation to the scene. This difference matters if your scene is larger than your screen resolution and thus scrollable. Have a look at example 2 on how to deal with this.
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{| class="ts"
 
|-
 
|-
| Available since v3.3
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| style="width:15%" | Related functions
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| [[Global Command: setCursorPos|setCursorPos]]
 
|}
 
|}
  
  
Stores the current position (absolute) of the mouse cursor into an x,y table, which can be used in a query to check if the current position is over an object/character or a certain part of the scene etc.
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== Syntax ==
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<syntaxhighlight lang="lua">
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getCursorPos()
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</syntaxhighlight>
  
  
Syntax:
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== Parameters ==
<syntaxhighlight>
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getCursorPos()
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none
</syntaxhighlight>
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 +
 
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== Return values ==
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A Visionaire "t_point" field holding the current mouse cursor position is returned. That's an associative array containing the elements '''x''' and '''y'''.
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{| class="ts"
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|-
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! style="width:15%" colspan="2" | Type/Structure
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! Description
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|-
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| rowspan="2" | table
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| x (int)
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| Horizontal position (X coordinate) of current mouse cursor position
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|-
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| y (int)
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| Vertical position (Y coordinate) of current mouse cursor position
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|}
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== Examples ==
  
Example:
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'''Example 1:''' Check if the current cursor position matches a defined position.
<syntaxhighlight>
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<syntaxhighlight lang ="lua">
-- let's store the current position into a variable!
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-- Store the current position into a variable
 
local curPos = getCursorPos()
 
local curPos = getCursorPos()
  
-- let's check if the stored cursor position equals another x,y value!
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-- Check if the stored cursor position equals another {x,y} value
 
if curPos.x == 200 and curPos.y == 400 then
 
if curPos.x == 200 and curPos.y == 400 then
-- do some action!
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  return true
 
else
 
else
-- do some other action!
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  return false
 
end
 
end
 
</syntaxhighlight>
 
</syntaxhighlight>
  
  
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'''Example 2:''' Function to get the cursor position in relation to the scene by taking the current scroll position into account.
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<syntaxhighlight lang ="lua">
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function getAbsoluteCursorPos()
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  -- Store the current position into a variable
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  local curPos = getCursorPos()
  
<span class="bold underline">Arguments</span>
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  -- Empty table to store the absolute position
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  local curAbsPos = {}
  
none
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  -- Add the current scroll position to the cursor position
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  curAbsPos.x = game.ScrollPosition.x + curPos.x
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  curAbsPos.y = game.ScrollPosition.y + curPos.y
  
 
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  return curAbsPos
<span class="bold underline">Flags</span>
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end
 
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</syntaxhighlight>
none
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{{toc}}
 
 
 
 
<span class="bold underline">Return</span>
 
 
 
<span class="bold">pos</span> <br/>
 
Table containing x,y values of current mouse cursor position
 

Latest revision as of 16:10, 2 May 2023

Get the current position of the mouse cursor.

Note that the function returns the cursor position in relation to the screen instead of in relation to the scene. This difference matters if your scene is larger than your screen resolution and thus scrollable. Have a look at example 2 on how to deal with this.

Related functions setCursorPos


Syntax

getCursorPos()


Parameters

none


Return values

A Visionaire "t_point" field holding the current mouse cursor position is returned. That's an associative array containing the elements x and y.

Type/Structure Description
table x (int) Horizontal position (X coordinate) of current mouse cursor position
y (int) Vertical position (Y coordinate) of current mouse cursor position


Examples

Example 1: Check if the current cursor position matches a defined position.

-- Store the current position into a variable
local curPos = getCursorPos()

-- Check if the stored cursor position equals another {x,y} value
if curPos.x == 200 and curPos.y == 400 then
  return true
else
  return false
end


Example 2: Function to get the cursor position in relation to the scene by taking the current scroll position into account.

function getAbsoluteCursorPos()
  -- Store the current position into a variable
  local curPos = getCursorPos()

  -- Empty table to store the absolute position
  local curAbsPos = {}

  -- Add the current scroll position to the cursor position
  curAbsPos.x = game.ScrollPosition.x + curPos.x
  curAbsPos.y = game.ScrollPosition.y + curPos.y

  return curAbsPos
end