Difference between revisions of "B2.ParticleSystem:createParticleGroup"
From GiderosMobile
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b2.ParticleSystem:createParticleGroup(particleGroupDef) | b2.ParticleSystem:createParticleGroup(particleGroupDef) | ||
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=== Parameters === | === Parameters === | ||
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{{B2.ParticleSystem}} | {{B2.ParticleSystem}} | ||
Revision as of 17:36, 12 July 2023
Available since: Gideros 2011.6
Class: b2.ParticleSystem
Description
Creates a group of multiple particles with the same properties. The possible table properties are:
- flags: the particle-behavior flags
- groupFlags: the group-construction flags
- position: the world position of the group. Moves the group's shape a distance equal to the value of position
- angle: the world angle of the group in radians. Rotates the shape by an angle equal to the value of angle
- linearVelocity: the linear velocity of the group's origin in world co-ordinates
- angularVelocity: the angular velocity of the group
- color: the color of all particles in the group
- alpha: the alpha of all particles in the group
- strength: the strength of cohesion among the particles in a group with flag b2.ParticleSystem.FLAG_ELASTIC or b2.ParticleSystem.FLAG_SPRING
- shape: the shape where particles will be added
- lifetime: lifetime of the particle group in seconds. A value <= 0.0f indicates a particle group with infinite lifetime
<source lang="lua"> b2.ParticleSystem:createParticleGroup(particleGroupDef) </syntaxhighlight>
Parameters
particleGroupDef: (table) table with particle group data
Example
<source lang="lua"> require "liquidfun" local world = b2.World.new(0, 9.8) local shape = b2.PolygonShape.new() shape:setAsBox(128, 128) local ps = world:createParticleSystem( { radius = 16 } ) ps:setTexture(Texture.new("gfx/myparticle.png")) stage:addChild(ps) ps:createParticleGroup({ shape = shape, position = { x = 128, y = 128}, color = 0xffffff, alpha=1, flags=b2.ParticleSystem.FLAG_VISCOUS, }) </syntaxhighlight>
- B2.ParticleSystem.FLAG BARRIER
- B2.ParticleSystem.FLAG COLOR MIXING
- B2.ParticleSystem.FLAG DESTRUCTION LISTENER
- B2.ParticleSystem.FLAG ELASTIC
- B2.ParticleSystem.FLAG FIXTURE CONTACT FILTER
- B2.ParticleSystem.FLAG FIXTURE CONTACT LISTENER
- B2.ParticleSystem.FLAG PARTICLE CONTACT FILTER
- B2.ParticleSystem.FLAG PARTICLE CONTACT LISTENER
- B2.ParticleSystem.FLAG POWDER
- B2.ParticleSystem.FLAG REACTIVE
- B2.ParticleSystem.FLAG REPULSIVE
- B2.ParticleSystem.FLAG SPRING
- B2.ParticleSystem.FLAG STATIC PRESSURE
- B2.ParticleSystem.FLAG TENSILE
- B2.ParticleSystem.FLAG VISCOUS
- B2.ParticleSystem.FLAG WALL
- B2.ParticleSystem.FLAG WATER
- B2.ParticleSystem.FLAG ZOMBIE
