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Question by elfmsk · May 18, 2020 at 06:01 AM · rotate

how to rotate a cube?

Hi, help me solve one problem. The task is as follows. I have a circle on which the sphere moves in any direction, on the border of the circle (i.e. the radius from the center) is a cube that moves strictly along the border, always keeping the radius (the y vector is fixed). The task is to throw the sphere off the plane, and the cube must prevent this. There is another unresolved issue: The side of the cube should always face the center, but quaternions in Uniti do not allow rotation by more than 180 degrees, i.e., they can be transformed.LookAtThe (vector 3. null) method also doesn't solve my problem.

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Answer by SunnyChow · May 18, 2020 at 08:10 AM

  1. put all points in an array

  2. check which point is on the floor and closest to the destination

  3. rotate based on that point (probably parent the cube to the an empty GameObject at that point)

  4. back to 2.

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avatar image elfmsk · May 18, 2020 at 05:51 PM 0
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It is not difficult to deter$$anonymous$$e the coordinates and angle of rotation. The problem is that when I ask the cube to turn to the desired angle, it affects "transform.position" and my cube just refuses to cross the z-axis.

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Answer by bombombambam · May 18, 2020 at 08:20 AM

Add an empty gameobject to the middle of the circle, attach the cube to it and just rotate it

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avatar image elfmsk · May 18, 2020 at 05:42 PM 0
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This approach won't help, I must have a smart cube. It should rotate in any direction, and when the sphere comes to the edge, the cube stops and does not let it fall.

avatar image elfmsk · May 18, 2020 at 06:02 PM 0
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I forgot to say that the speed of the cube is exactly 4 times higher than the speed of the sphere. This should be taken into account. And with this approach, I don't know how to set the speed of the cube.

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