Difference between revisions of "Particles:addParticles"
From GiderosMobile
(added example) |
(modified example) |
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| Line 37: | Line 37: | ||
stars:setPosition(64, 64) | stars:setPosition(64, 64) | ||
stage:addChild(stars) | stage:addChild(stars) | ||
| − | stars:addParticles({ | + | 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) | ||
</source> | </source> | ||
Revision as of 02:50, 24 November 2019
Available since: Gideros 2016.06
Class: Particles
Description
Add particle a single particle (short form) or several ones (long form) to this particle system.
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 leave, 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
(number or table) = Particles:addParticles(particles)
Example
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)
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
