nl_tokens: The settings for a type of particle .
pl_tokens: function ( prefab ) { /**
       * The name of a prefab to instantiate for the particle, as defined in <code>prefabs.json</code>.
       * @member {string}
       */ this . prefab = prefab ; /**
       * The origin point in which to create particles.
       *
       * If the origin is a number it represents an entity and a random point inside the entity will be used.
       * If origin is a point like <code>{"x": 50, "y": 50}</code> particles will spawn at that position.
       * @member {object | number}
       */ this . <mask> = { "x" : 0 , "y" : 0 } ; /**
       * How to distribute particles along the {@link module:splat-ecs/lib/particles.Config#arcWidth arcWidth}.
       *
       * Possible values:
       * <dl>
       * <dt><code>"even"</code></dt>
       * <dd>Distribute the particles evenly along the arc.</dd>
       * <dt><code>"random"</code></dt>
       * <dd>Scatter the particles on random points of the arc.</dd>
       * </dl>
       * @member {string}
       */ this . spreadType = "random" ; /**
       * The direction (an angle in radians) that the particles should move.
       * @member {number}
       */ this . angle = 0 ; /**
       * The width of an arc (represented by an angle in radians) to spread the particles. The arc is centered around {@link module:splat-ecs/lib/particles.Config#angle angle}.
       * @member {number}
       */ this . arcWidth = Math . PI / 2 ; /**
       * The minimum number of particles to create.
       * @member {number}
       */ this . qtyMin = 1 ; /**
       * The maximum number of particles to create.
       * @member {number}
       */ this . qtyMax = 1 ; /**
       * The minimum percentage to scale each particle.
       * <ul>
       * <li>A scale of 0.5 means the particle will spawn at 50% (half) of the original size.</li>
       * <li>A scale of 1 means the particle will spawn at the original size.</li>
       * <li>A scale of 2 means the particle will spawn at 200% (double) the original size.</li>
       * </ul>
       * @member {number}
       */ this . sizeMin = 1 ; /**
       * The maximum percentage to scale each particle.
       * <ul>
       * <li>A scale of 0.5 means the particle will spawn at 50% (half) of the original size.</li>
       * <li>A scale of 1 means the particle will spawn at the original size.</li>
       * <li>A scale of 2 means the particle will spawn at 200% (double) the original size.</li>
       * </ul>
       * @member {number}
       */ this . sizeMax = 1 ; /**
       * The minimum velocity to apply to each particle.
       * @member {number}
       */ this . velocityMin = 0.5 ; /**
       * The maximum velocity to apply to each particle.
       * @member {number}
       */ this . velocityMax = 0.5 ; /**
       * The acceleration on the x-axis to apply to each particle.
       * @member {number}
       */ this . accelerationX = 0 ; /**
       * The acceleration on the y-axis to apply to each particle.
       * @member {number}
       */ this . accelerationY = 0 ; /**
       * The minimum life span to apply to each particle.
       * @member {number}
       */ this . lifeSpanMin = 0 ; /**
       * The maximum life span to apply to each particle.
       * @member {number}
       */ this . lifeSpanMax = 500 ; }