First Project Tetris Hello World Rotation

[Evgeni_Popov]

Welcome aboard!

@quarterpastsix

is it possible to dispose or get rid of the box in another way like i tried in line 15. without losing all the instances?

You can hide the box with box.setEnabled(false).

@quarterpastsix

is there a way to do it without failure prone reduncancy (especailly when the blocks should move in the future and the anchor should change depending on a main block), or do it maybe differently altogether?

I think you should design your pieces to be centered at the (0,0,0) point. That way, there’s no anchor point and you will simply need to subtract the piece position before rotating:

Babylon.js Playground

@quarterpastsix

however i do it based on absolute angles, is it possible to do it relative to the last position?

You can do piece.blocks[i].instance.rotation.z -= Math.PI / 4; instead of piece.blocks[i].instance.rotation.z = angle.

@quarterpastsix

or is it maybe possible to make a grouping or something?

You can group all the blocks of a piece in a single piece thanks to Mesh.MergeMeshes.

@quarterpastsix

is my approach fine?

That seems fine to me .

Using MergeMeshes will help simplify the code as you will only have to rotate a single mesh and you won’t need to use setPivotPoint. So, something along the line:

Babylon.js Playground