RadialForce
Constraint that applies radial force from or toward a center point
Constructor
new RadialForce(params: RadialForceParams)Parameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| params | RadialForceParams | Configuration parameters for the force | - |
Properties
| Property | Type | Description |
|---|---|---|
| name | string | Unique identifier for the constraint |
| active | boolean | Whether the constraint is active |
| glsl | string | GLSL shader code for the force |
| center | [number, number, number] | Center point of the radial force |
| strength | number | Strength of the force |
Methods
build(): void
Builds the GLSL shader code for the radial force.
setCenter(center: [number, number, number]): void
Updates the center position of the radial force.
setStrength(strength: number): void
Updates the strength of the radial force.
Example Usage
import { RadialForce, PropertyManager } from 'particlize';
// Create a radial force that attracts particles to center
const attractiveForce = new RadialForce({
center: { value: [0, 0, 0], hardcode: true },
strength: { value: -0.1, hardcode: false } // Negative for attraction
});
// Create a radial force that repels particles from center
const repulsiveForce = new RadialForce({
center: { value: [0, 0, 0], hardcode: true },
strength: { value: 0.2, hardcode: false } // Positive for repulsion
});
// Add to property manager
const propertyManager = new PropertyManager({ /* ... */ });
propertyManager.addProperty('velocity', { size: 3 });
propertyManager.addConstraint('velocity', attractiveForce);
// Update force strength dynamically
repulsiveForce.setStrength(0.5);
repulsiveForce.setCenter([1, 0, 0]);