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/fx/smoke.png")
local stars = Particles.new()
stars:setTexture(particleGFX)
stage:addChild(stars)
stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

-- GAME LOOP
function onEnterFrame(e)
	if (e.time // 1) % 2 == 0 then
		self.stars:addParticles({
			{
				x=math.random(480),y=math.random(320),
				size=32,angle=math.random(360),
				color=0xffffff,alpha=0.2,
				ttl=16*64,
				speedX=0.01,speedY=0.01,speedAngular=0.15,
				speedGrowth=0.5,
			},
			{
				x=math.random(480),y=math.random(320),
				size=24,angle=math.random(360/2),
				color=0x0,alpha=0.2,
				ttl=8*64,
				speedX=0.01,speedY=0.01,speedAngular=0.015,
				speedGrowth=0.5,
			},
		})
	end
end

Methods Particles.new creates new particles group Particles:addParticles adds particles Particles:clearTexture clears texture for all particles Particles:getNearestParticle gets the index of the nearest particle to the given point Particles:getParticleAngle gets particle angle Particles:getParticleColor gets particle color and alpha value Particles:getParticleDecay gets particle decay factor 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:setParticleAngle sets particle angle Particles:setParticleColor sets particle color Particles:setParticleDecay sets particle decay factor 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

---

• Main Page
• Lua API
• Main API
• Plugins