Particle Emitter (Flowgraph Node)

Overview

• Node Name: Particle Emitter
• Category: repeat_instant
• File: extensions/flowgraph/nodes/scene/particleEmitter.lua

Creates and manages a particle emitter in the scene. Supports positioning, rotation, and color control.

Pin Schema

Input Pins

Internals

Behavior

• work() - On each frame:
  • If no object exists, creates one via showObject().
  • On flow, shows the emitter and updates position.
  • On clear impulse, hides the emitter.
• createObject(name) - Creates a ParticleEmitterNode with the BNGP_confetti emitter and lightExampleEmitterNodeData1 datablock.
• showObject() / hideObject() - Toggles the hidden property on the emitter object.
• _executionStopped() - Deletes the emitter object and cleans up.

How It Works

1. On first flow, a ParticleEmitterNode is created and added to MissionGroup.
2. Each frame with flow, the emitter is shown and repositioned.
3. A clear impulse hides the emitter without deleting it.
4. On execution stop or mission end, the object is fully deleted.

Key Dependencies

• createObject('ParticleEmitterNode') - Torque3D engine call for particle emitters
• scenetree.MissionGroup:addObject() - adds the emitter to the scene

Additional Methods

C:_afterTrigger()

Called after the node's trigger logic executes.

C:destroy()

Destroys the node and cleans up any created objects.

C:fillFields()

Node method.

C:init(mgr, ...)

Initializes the node, setting up pins and default properties.

Parameters:

• mgr
• ...

C:onClientEndMission()

Cleanup callback when the mission/level ends.

C:setPosition()

Node method.

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See Also

• Collection Marker (Flowgraph Node) - Related reference
• Custom Lua Command (Flowgraph Node) - Related reference
• Get Object Field (Flowgraph Node) - Related reference
• FlowGraph Guide - Guide