Difference between revisions of "love.mouse.isDown"

m (mentioned in irc)
(Updated for 0.10.0.)
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Checks whether a certain mouse button is down. This function does not detect mousewheel scrolling; you must use the [[love.mousepressed]] callback for that.  
+
Checks whether a certain mouse button is down. This function does not detect mousewheel scrolling; you must use the [[love.wheelmoved]] (or [[love.mousepressed]] in version [[0.9.2]] and older) callback for that.  
 +
 
 
== Function ==
 
== Function ==
 +
{{newin|[[0.10.0]]|100|type=variant}}
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=== Synopsis ===
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<source lang="lua">
 +
down = love.mouse.isDown( buttonA, buttonB, ... )
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</source>
 +
=== Arguments ===
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{{param|number|buttonN|The index of a button to check. 1 is the primary mouse button, 2 is the secondary mouse button, etc.}}
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=== Returns ===
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{{param|boolean|down|True if any specified button is down.}}
 +
 +
== Function ==
 +
{{oldin|[[0.10.0]]|100|type=variant}}
 
=== Synopsis ===
 
=== Synopsis ===
 
<source lang="lua">
 
<source lang="lua">
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== Function ==
 
== Function ==
 
{{newin|[[0.7.2]]|072|type=variant}}
 
{{newin|[[0.7.2]]|072|type=variant}}
 +
{{oldin|[[0.10.0]]|100|type=variant}}
 
=== Synopsis ===
 
=== Synopsis ===
 
<source lang="lua">
 
<source lang="lua">
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{{param|boolean|anyDown|True if any specified button is down, false otherwise.}}
 
{{param|boolean|anyDown|True if any specified button is down, false otherwise.}}
 
== Example ==
 
== Example ==
−
=== Increase a value while the right mouse button is held ===
+
=== Increase a value while the right mouse button is held (version [[0.10.0]] and newer) ===
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<source lang="lua">
 +
val = 0  -- establish a variable for later use
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function love.update(dt)
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if love.mouse.isDown(2) then
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val = val + dt  -- we will increase the variable by 1 for every second the button is held down
 +
end
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end
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</source>
 +
=== Increase a value while the right mouse button is held (version [[0.9.2]] and older) ===
 
<source lang="lua">
 
<source lang="lua">
 
val = 0  -- establish a variable for later use
 
val = 0  -- establish a variable for later use

Revision as of 01:49, 17 December 2015

Checks whether a certain mouse button is down. This function does not detect mousewheel scrolling; you must use the love.wheelmoved (or love.mousepressed in version 0.9.2 and older) callback for that.

Function

Available since LÖVE 0.10.0
This variant is not supported in earlier versions.

Synopsis

down = love.mouse.isDown( buttonA, buttonB, ... )

Arguments

number buttonN
The index of a button to check. 1 is the primary mouse button, 2 is the secondary mouse button, etc.

Returns

boolean down
True if any specified button is down.

Function

Removed in LÖVE 0.10.0
This variant is not supported in that and later versions.

Synopsis

down = love.mouse.isDown( button )

Arguments

MouseConstant button
The button to check.

Returns

boolean down
True if the specified button is down.

Function

Available since LÖVE 0.7.2
This variant is not supported in earlier versions.
Removed in LÖVE 0.10.0
This variant is not supported in that and later versions.

Synopsis

anyDown = love.mouse.isDown( button1, button2, button3, ... )

Arguments

MouseConstant buttonN
A button to check.

Returns

boolean anyDown
True if any specified button is down, false otherwise.

Example

Increase a value while the right mouse button is held (version 0.10.0 and newer)

val = 0   -- establish a variable for later use
function love.update(dt)
	if love.mouse.isDown(2) then
		val = val + dt   -- we will increase the variable by 1 for every second the button is held down
	end	
end

Increase a value while the right mouse button is held (version 0.9.2 and older)

val = 0   -- establish a variable for later use
function love.update(dt)
	if love.mouse.isDown("r") then
		val = val + dt   -- we will increase the variable by 1 for every second the button is held down
	end	
end

See Also


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