Unity's 3D multi-point arrow navigation

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2022.06.28

• When leaving the first navigation point , Arrow automatically creates the next arrow , This method can control the distance between the two arrows . In addition, you can use time to control the timing of the next arrow generation . When the first arrow reaches the last navigation point , Reclaim the arrow , That is to say, at most one arrow is reserved .
• The arrow displacement is through transform.position Data superimposed , It can control its moving speed .
• The direction of the arrow is for each set of paths ( Start and end two navigation points ) The direction of , Be careful ： If you use a three-dimensional model , It is required that the axis corresponding to the model in the world space coordinate system be assigned as the direction . in addition , The center point and center of gravity of the model must coincide .
• Some path segment arrows are not flat , This problem has not been solved yet , There are two ideas ：1) Through the direction vector and Vector3 The angle corresponding to the axial direction can be obtained from the fractional vector in each direction , And then convert it to the desired degree of rotation ;2) Determine two vectors through three points , And then find its normal vector , Set the corresponding axial orientation according to the normal vector , None of them passed the verification .

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2022.06.29

• Specification of model making , No problem ~

design sketch ：