Java Community | Help. Code. Learn.•4mo ago

Repositioning objects to stay in the same position relative to each other when rotated.

I have a grid of cubes, and currently when the rotation of a cube is requested it adds it with the rotation of it's grid. While this does keep the rotation of all objects in the grid synced, it does not reposition them to upkeep the illusion of them being one solid object. I'd imagine the solution would be as simple as also modifying the position of each cube based on the grid rotation, but I need some help figuring out what mathematical calculation would be needed.

7 Replies

JavaBot•4mo ago

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𝓐pothiconOP•4mo ago

so basically i need help with figuring out what to replace "Something that factors in the rotation value" with math would fix this

Vector3f rotatedPos = new Vector3f((pos.x+gridPos.x)+"Something that factors in the rotational value", (pos.y+gridPos.y)+"Something that factors in the rotational value", (pos.z+gridPos.z)+"Something that factors in the rotational value");

Vector3f rotatedPos = new Vector3f((pos.x+gridPos.x)+"Something that factors in the rotational value", (pos.y+gridPos.y)+"Something that factors in the rotational value", (pos.z+gridPos.z)+"Something that factors in the rotational value");

JavaBot•4mo ago

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𝓐pothiconOP•4mo ago

Reopen

JavaBot•4mo ago

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𝓐pothiconOP•4mo ago

Reopen or maybe its more to do with this part?

modelMatrix.translationRotateScaleMulAffine(position, rotation, new Vector3f(scale, scale, scale), gridMatrix);

modelMatrix.translationRotateScaleMulAffine(position, rotation, new Vector3f(scale, scale, scale), gridMatrix);

JavaBot•4mo ago

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Repositioning objects to stay in the same position relative to each other when rotated.