be careful with scaling .hmp terrain from script, which is part of a .wmb level. as I remember I posted a bug report in connection with it... probably I got an answer like "we'll look into that"...

shortly: if you want to use vertex moving for water waving (ent_getvertex/ent_setvertex), A7 works fine, but in A8 scaling a .hmp within .wmb results in random disappearing of that passable water terrain. if it is static, it's fine. (and vertex moving works fine for non-scaled terrains). this bug is for .wmb insider .hmp only.