Today I will start trying to detect collisions.
I used Kyatric example to make a thumstick and affected the angle and power of the water when moving the Stick.
I think that when a particle is destroyed
1. I would generate a dummy object on that position
2. check for collisions
2.1 if collided or overlapped with the plant add points to the plant
2.2 not colliding do nothing
3. destroy the dummy object
It might work if I know where the particle is destroyed..
I think yesterday I saw some property on the particles for that.