Difference between revisions of "Particles:addParticles"

From GiderosMobile
m (little typo :-))
(removed language stuff)
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 +
'''Available since:''' Gideros 2016.06<br/>
 +
'''Class:''' [[Particles]]<br/>
  
−
'''<translate>Available since</translate>:''' Gideros 2016.06<br/>
+
=== Description ===
−
'''<translate>Class</translate>:''' [[Special:MyLanguage/Particles|Particles]]<br/>
+
Add a single particle (short form)  or several ones (long form) to a particle system.
−
 
+
<source lang="lua">
−
=== <translate>Description</translate> ===
+
(number or table) = Particles:addParticles(particles)
−
Add a single particle (short form)  or several ones (long form) to this particle system.
+
</source>
  
 
'''Short form''' (single particle): ''particles:addParticles(x,y,size,angle,ttl)''
 
'''Short form''' (single particle): ''particles:addParticles(x,y,size,angle,ttl)''
Line 21: Line 23:
 
*speedX,speedY,speedAngular,speedGrowth: Amount added to x,y,angle and size at the beginning of each frame
 
*speedX,speedY,speedAngular,speedGrowth: Amount added to x,y,angle and size at the beginning of each frame
 
*decay,decayAngular,decayGrowth,decayAlpha: factor applied to speedX and speedY, speedAngular, speedGrowth and alpha at the beginning of each frame
 
*decay,decayAngular,decayGrowth,decayAlpha: factor applied to speedX and speedY, speedAngular, speedGrowth and alpha at the beginning of each frame
−
<source lang="lua">
 
−
(number or table) = Particles:addParticles(particles)
 
−
</source>
 
  
−
=== <translate>Parameters</translate> ===
+
=== Parameters ===
−
'''particles''': (table or arguments) <translate>table for multiple particles or arguments for single</translate>
+
'''particles''': (table or arguments) table for multiple particles or arguments for single
  
−
=== <translate>Return values</translate> ===
+
=== Return values ===
−
'''<translate>Returns</translate>''' (number or table) <translate>index or table with indexes of added particles</translate>
+
'''Returns''' (number or table) index or table with indexes of added particles
  
−
=== <translate>Example</translate> ===
+
=== Example ===
 
<source lang="lua">
 
<source lang="lua">
 
local stars = Particles.new()
 
local stars = Particles.new()

Revision as of 18:34, 31 July 2021

Available since: Gideros 2016.06
Class: Particles

Description

Add a single particle (short form) or several ones (long form) to a particle system. 

(number or table) = Particles:addParticles(particles)

Short form (single particle): particles:addParticles(x,y,size,angle,ttl)

Extended form: particles:addParticles{particleDesc1,particleDesc2,...,particleDescN}

where particleDescX is a table describing a particle to be added. This table can contain the following parameters:

  • x,y: particle position
  • size: particle size
  • angle: particle orientation
  • color: particle color
  • alpha: particle alpha
  • ttl: time to live, number of frames this particle will stay on screen
  • tag: tag associated with this particle
  • speedX,speedY,speedAngular,speedGrowth: Amount added to x,y,angle and size at the beginning of each frame
  • decay,decayAngular,decayGrowth,decayAlpha: factor applied to speedX and speedY, speedAngular, speedGrowth and alpha at the beginning of each frame

Parameters

particles: (table or arguments) table for multiple particles or arguments for single

Return values

Returns (number or table) index or table with indexes of added particles

Example

local stars = Particles.new()
stars:setPosition(64, 64)
stage:addChild(stars)
stage:addEventListener(Event.ENTER_FRAME, function()
	stars:addParticles({
		{x=math.random(4*64),y=math.random(5*64),size=math.random(1,30),color=0xD9B589,ttl=1*60,speedX=0,speedY=0},
		{x=math.random(2*64),y=math.random(5*64),size=math.random(1,30),color=0xffff00,ttl=30*60,speedX=1,speedY=0},
	})
end)



Retrieved from ‘https://wiki.gideros.rocks/index.php?title=Particles:addParticles&oldid=18046’