Difference between revisions of "B2.ParticleSystem"
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=== Description === | === Description === | ||
Defines particle system in box2d world using Liquid fun | Defines particle system in box2d world using Liquid fun | ||
+ | === Examples === | ||
+ | '''Simple particle system example'''<br/> | ||
+ | <source lang="lua">-- create world | ||
+ | local world = b2.World.new(0, 9.8) | ||
+ | |||
+ | local ps1= world:createParticleSystem({ radius=5}) | ||
+ | ps1:setTexture(Texture.new("Bubble.png")) | ||
+ | stage:addChild(ps1) | ||
+ | |||
+ | ps1:createParticleGroup({shape=shape2, | ||
+ | position={x=500,y=250}, | ||
+ | color = 0xFF0000, | ||
+ | alpha=1, | ||
+ | flags=0 | ||
+ | }) | ||
+ | |||
+ | ps1:createParticleGroup({shape=shape1, | ||
+ | position={x=400,y=50}, | ||
+ | color = 0x0000FF, | ||
+ | alpha=1, | ||
+ | flags=0 | ||
+ | }) | ||
+ | |||
+ | |||
+ | -- step the world and then update the position and rotation of sprites | ||
+ | local function onEnterFrame() | ||
+ | world:step(1/60, 8, 3) | ||
+ | end | ||
+ | |||
+ | stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)</source> | ||
{|- | {|- | ||
| style="width: 50%;"| | | style="width: 50%;"| |
Revision as of 10:44, 23 August 2018
Supported platforms:
Available since: Gideros 2015.06.30
Description
Defines particle system in box2d world using Liquid fun
Examples
Simple particle system example
-- create world
local world = b2.World.new(0, 9.8)
local ps1= world:createParticleSystem({ radius=5})
ps1:setTexture(Texture.new("Bubble.png"))
stage:addChild(ps1)
ps1:createParticleGroup({shape=shape2,
position={x=500,y=250},
color = 0xFF0000,
alpha=1,
flags=0
})
ps1:createParticleGroup({shape=shape1,
position={x=400,y=50},
color = 0x0000FF,
alpha=1,
flags=0
})
-- step the world and then update the position and rotation of sprites
local function onEnterFrame()
world:step(1/60, 8, 3)
end
stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)
Methodsb2.ParticleSystem:containsParticle - |
EventsConstantsb2.ParticleSystem.FLAG_COLOR_MIXING |