Placing mesh on another mesh

Questions
1

I have a moving mesh. Let call it Moving_Mesh and other meshes Mesh1, Mesh2,Mesh3.

These Mesh1, Mesh2, Mesh3 have different position.y values. And Moving_Mesh has some height H.

How do I set the value of Moving_Mesh.position.y so that it appears properly on all these meshses (Mesh1, Mesh2, Mesh3)

Problem:- Right now when set value of Moving_Mesh.position.y sometimes it appears to be in air for Mesh1 which have low position.y value and sometime it goes underneath for Mesh3 which have high Moving_Mesh.position.y value. I want it to be just placed properly over mesh not in air and not underneath

2

Are you able to reproduce your use case in the Playground?

It will be easier to understand what you want to achieve.

Without more information, I would say that setting Moving_Mesh.position.y = Math.max(Mesh1.position.y, Mesh2.position.y, Mesh3.position.y) + H/2 should do it (assuming Moving_Mesh is centered in its own local coordinate system).