I want to make sure that when my particles collide with a sphere they give one unit in the int variable, I myself could not figure out how to handle it correctly to call the particle trigger from the script
Can you show us your attempt?
Here’s an example. Put the script on the GameObject with the particle system. Don’t forget to set up the trigger module in the particle system.
OnParticleTrigger is called when any particles in a Particle System meet the conditions in the trigger module.