private static void ScaleSystem(ParticleSystem particles, float scale, bool scalePosition, ParticleScalerOptions options = null)
{
if (options == null)
{
options = defaultOptions;
}
if (scalePosition)
{
particles.transform.localPosition *= scale;
}
particles.startSize *= scale;
particles.gravityModifier *= scale;
particles.startSpeed *= scale;
if (options.shape)
{
var shape = particles.shape;
shape.radius *= scale;
shape.scale = shape.scale * scale;
}
/* Currently disabled due to a bug in Unity 5.3.4.
* If any of these fields are using "Curves", the editor will shut down when they are modified.
* If you're not using any curves, feel free to uncomment the following lines;
* if (options.velocity) {
* var vel = particles.velocityOverLifetime;
* vel.x = ScaleMinMaxCurve(vel.x, scale);
* vel.y = ScaleMinMaxCurve(vel.y, scale);
* vel.z = ScaleMinMaxCurve(vel.z, scale);
* }
* if (options.clampVelocity) {
* var clampVel = particles.limitVelocityOverLifetime;
* clampVel.limitX = ScaleMinMaxCurve(clampVel.limitX, scale);
* clampVel.limitY = ScaleMinMaxCurve(clampVel.limitY, scale);
* clampVel.limitZ = ScaleMinMaxCurve(clampVel.limitZ, scale);
* }
* if (options.force) {
* var force = particles.forceOverLifetime;
* force.x = ScaleMinMaxCurve(force.x, scale);
* force.y = ScaleMinMaxCurve(force.y, scale);
* force.z = ScaleMinMaxCurve(force.z, scale);
* }
*/
}
static public void Scale(ParticleSystem particles, float scale, bool includeChildren = true, ParticleScalerOptions options = null)
{
ScaleSystem(particles, scale, false, options);
if (includeChildren)
{
var children = particles.GetComponentsInChildren <ParticleSystem>();
for (var i = children.Length; i-- > 0;)
{
if (children[i] == particles)
{
continue;
}
ScaleSystem(children[i], scale, true, options);
}
}
}