Particles

Supported platforms:
Available since: Gideros 2016.06
Inherits from: Sprite

Description

A particle system which allows to draw several identical dots or bitmaps, with varying colour and orientation.

Example

-- gideros particles
local particleGFX = Texture.new("gfx/yourgfx.png")
local stars = Particles.new()
stars:setTexture(particleGFX)
stage:addChild(stars)

-- GAME LOOP
function onEnterFrame(e)
	if (e.time // 1) % 4 == 0 then
		stars:addParticles({
			{
				x=math.random(480),y=math.random(320),
				size=32,angle=math.random(360),
				color=0xff00ff,alpha=0.8,
				ttl=16*2,
				speedX=0.01,speedY=0.01,speedAngular=0.15,
				speedGrowth=0.9,
			},
			{
				x=math.random(480),y=math.random(320),
				size=16,angle=math.random(360),
				color=0x00ffff,alpha=0.8,
				ttl=16*16,
				speedX=0.02,speedY=0.02,speedAngular=0.2,
				speedGrowth=-0.1,
			},
		})
	end
end

stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

Methods Particles.new creates new particles group Particles:addParticles adds particles Particles:clearTexture clears texture for all particles Particles:getDeadParticles gets dead particles Particles:getNearestParticle gets the index of the nearest particle to the given point Particles:getParticleAcceleration gets particle acceleration Particles:getParticleAngle gets particle angle Particles:getParticleColor gets particle color and alpha value Particles:getParticleDecay gets particle decay factor Particles:getParticleExtra gets particle extra value Particles:getParticlePosition gets particle position Particles:getParticleSize gets particle size in pixels Particles:getParticleSpeed gets particle speed Particles:getParticleTag gets particle associated tag Particles:getParticleTtl gets particle initial time to live Particles:getParticles gets particles Particles:isPaused tells if the Particle set is paused Particles:removeParticles removes particles by index in table or as arguments Particles:scaleParticles scales or resizes all particles in this sprite Particles:setParticleAcceleration sets particle acceleration Particles:setParticleAngle sets particle angle Particles:setParticleColor sets particle color Particles:setParticleDecay sets particle decay factor Particles:setParticleExtra sets particle extra value Particles:setParticlePosition sets particle position Particles:setParticleSize sets particle size Particles:setParticleSpeed sets particle speed Particles:setParticleTag sets particle tag Particles:setParticleTtl sets particle time to live Particles:setPaused pauses or resumes the Particle set Particles:setTexture sets texture to all particles

Events Constants

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