Difference between revisions of "Core.asyncCall"

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(added random example :-()
 
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__NOTOC__
 
'''Available since:''' Gideros 2016.06<br/>
 
'''Available since:''' Gideros 2016.06<br/>
 
'''Class:''' [[Core]]<br/>
 
'''Class:''' [[Core]]<br/>
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=== Description ===
 
=== Description ===
 
Launches a function on a separate thread as a background task.
 
Launches a function on a separate thread as a background task.
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<source lang="lua">
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<syntaxhighlight lang="lua">
 
Core.asyncCall(task,parameters)
 
Core.asyncCall(task,parameters)
−
</source>
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</syntaxhighlight>
  
 
Background threads are only executed when the main thread is not running.
 
Background threads are only executed when the main thread is not running.
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'''parameters''': (multiple) multiple parameters to pass to function '''optional'''<br/>
 
'''parameters''': (multiple) multiple parameters to pass to function '''optional'''<br/>
  
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=== Example ===
+
=== Examples ===
−
<source lang="lua">
+
<syntaxhighlight lang="lua">
 +
local txt1_noads = TextField.new(nil, "no ads")
 +
local txt2_plusincome = TextField.new(nil, "plus income")
 +
local btn_OK = TextField.new(nil, "OK")
 +
-- position
 +
txt1_noads:setPosition(64, 64*1)
 +
txt2_plusincome:setPosition(64, 64*3)
 +
btn_OK:setPosition(64, 64*5)
 +
-- scale
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local FontScale = 4
 +
local tempFontScale = 8
 +
txt1_noads:setScale(FontScale)
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txt2_plusincome:setScale(FontScale)
 +
btn_OK:setScale(FontScale)
 +
-- order
 +
stage:addChild(txt1_noads)
 +
stage:addChild(txt2_plusincome)
 +
stage:addChild(btn_OK)
 +
 
 
local function scaleTextsAndBtn()
 
local function scaleTextsAndBtn()
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local tempFontScale=1.02
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Core.yield(2)
−
 
 
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Core.yield(.2)
 
 
txt1_noads:setScale(tempFontScale)
 
txt1_noads:setScale(tempFontScale)
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Core.yield(.1)
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Core.yield(1)
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txt1_noads:setScale(1)
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txt1_noads:setScale(FontScale)
  
 +
Core.yield(1)
 
txt2_plusincome:setScale(tempFontScale)
 
txt2_plusincome:setScale(tempFontScale)
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Core.yield(.1)
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Core.yield(1)
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txt2_plusincome:setScale(1)
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txt2_plusincome:setScale(FontScale)
  
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Core.yield(.1)
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Core.yield(1)
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btn_OK:setScale(1.04)
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btn_OK:setScale(tempFontScale)
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Core.yield(.2)
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Core.yield(0.5)
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btn_OK:setScale(1)
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btn_OK:setScale(FontScale)
 
end
 
end
 
   
 
   
 
Core.asyncCall(scaleTextsAndBtn)
 
Core.asyncCall(scaleTextsAndBtn)
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</source>
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</syntaxhighlight>
 +
 
 +
'''asyncCall used in a Class and with parameters'''
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<syntaxhighlight lang="lua">
 +
if self.imgui:button("VALIDATE") then
 +
-- self:gotoScene("levelX")
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Core.asyncCall(LevelX.gotoScene, self, "levelX") -- or self.gotoScene, ...
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end
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...
 +
 
 +
-- change scene
 +
function LevelX:gotoScene(xscene)
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scenemanager:changeScene(
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xscene, 1,
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transitions[math.random(1, #transitions)],
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easings[math.random(1, #easings)]
 +
)
 +
end
 +
</syntaxhighlight>
 +
 
 +
=== See also ===
 +
'''[[Core.yield]]'''
  
 
{{Core}}
 
{{Core}}

Latest revision as of 09:04, 11 November 2024

Available since: Gideros 2016.06
Class: Core

Description

Launches a function on a separate thread as a background task. 

Core.asyncCall(task,parameters)

Background threads are only executed when the main thread is not running.

Parameters

task: (function) function to run in background
parameters: (multiple) multiple parameters to pass to function optional

Examples

local txt1_noads = TextField.new(nil, "no ads")
local txt2_plusincome = TextField.new(nil, "plus income")
local btn_OK = TextField.new(nil, "OK")
-- position
txt1_noads:setPosition(64, 64*1)
txt2_plusincome:setPosition(64, 64*3)
btn_OK:setPosition(64, 64*5)
-- scale
local FontScale = 4
local tempFontScale = 8
txt1_noads:setScale(FontScale)
txt2_plusincome:setScale(FontScale)
btn_OK:setScale(FontScale)
-- order
stage:addChild(txt1_noads)
stage:addChild(txt2_plusincome)
stage:addChild(btn_OK)

local function scaleTextsAndBtn()
	Core.yield(2)
	txt1_noads:setScale(tempFontScale)
	Core.yield(1)
	txt1_noads:setScale(FontScale)

	Core.yield(1)
	txt2_plusincome:setScale(tempFontScale)
	Core.yield(1)
	txt2_plusincome:setScale(FontScale)

	Core.yield(1)
	btn_OK:setScale(tempFontScale)
	Core.yield(0.5)
	btn_OK:setScale(FontScale)
end
 
Core.asyncCall(scaleTextsAndBtn)

asyncCall used in a Class and with parameters 

	if self.imgui:button("VALIDATE") then
--		self:gotoScene("levelX")
		Core.asyncCall(LevelX.gotoScene, self, "levelX") -- or self.gotoScene, ...
	end
...

-- change scene
function LevelX:gotoScene(xscene)
	scenemanager:changeScene(
		xscene, 1,
		transitions[math.random(1, #transitions)],
		easings[math.random(1, #easings)]
	)
end

See also

Core.yield



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