In HypeHype, "triggering" means "executing" nodes. These can be executed in many ways, but usually this is done in the following ways:
The most common triggers are player inputs. These are most commonly used for character controls and player interaction in the scene.
When you want to check for physical collisions, you can use the Collision Detector node.
You can use target and groups to filter which collisions you want to check for.
Another way to check for physical objects is to use the Raycast and Sphere Cast nodes.
The Raycast node casts a single line and executes outputs based on if it hits something, while the Sphere Cast node uses a sphere with custom radius instead of a single line.