public static void Scale(ParticleSystem particles, float scale, bool includeChildren = true, ParticleScalerOptions options = null) {
ScaleSystem(particles, scale, false, options);
if (includeChildren) {
var children = particles.GetComponentsInChildren<ParticleSystem>(includeInactive: true); // my includeInactive addition
for (var i = children.Length; i-- > 0;) {
if (children[i] == particles) { continue; }
ScaleSystem(children[i], scale, true, options);
}
}
}
private static void ScaleSystem(ParticleSystem particles, float scale, bool scalePosition, ParticleScalerOptions options = null) {
if (options == null) {
options = defaultOptions;
}
if (scalePosition) {
particles.transform.localPosition *= scale;
}
var mainModule = particles.main;
mainModule.startSizeMultiplier *= scale; //particles.startSize *= scale; Deprecated in Unity 5.5
mainModule.gravityModifierMultiplier *= scale; //particles.gravityModifier *= scale; Deprecated in Unity 5.5
mainModule.startSpeedMultiplier *= scale; //particles.startSpeed *= scale; Deprecated in Unity 5.5
if (options.shape) {
var shape = particles.shape;
shape.radius *= scale;
shape.box = shape.box * 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);
}
}
