Way finding method and device

Abstract

The embodiment of the invention discloses a way finding method and a device. The method comprises the following steps of: respectively calculating paths of a first object and a second object in a predetermined time period based on the predetermined time period; setting interpolation points in the paths of the first object and the second object at each moment, and setting barrier value level of each interpolation point according to the precedence order of the interpolation points; and if the path of the first object overlaps the path of the second path and the barrier value level of the first object in the overlap area is higher than that of the second object in the overlap area, recalculating the paths of the second object in the overlap area and behind the overlap area. The method provided by the invention can determine the real position of an object in a smaller time slice and determine whether the object is blocked by setting the barrier value level of each interpolation point according to the precedence order of the interpolation points and by determining whether the paths overlap, thereby avoiding the problem of sparse motion of objects, and simulating real object motion.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a pathfinding method and device. Background technique [0002] Taking a certain position as the target position and an object as the starting position, the process of finding the path that the object passes from the starting position to the above object is the process of pathfinding. At present, more mature pathfinding algorithms include A* pathfinding algorithm, Dijkstra (Dijkstra) algorithm, etc. [0003] In order to reflect the authenticity of the object, the object has a volume, and objects cannot overlap or pass through each other. Therefore, in a space, there is a blocking phenomenon during the movement of objects. In the practical application in the field of computer technology, the starting position of the target position will be placed in a graph, and the graph will be divided into many grids (generally divided into small squares) to simplify the calculation; please ...

AI Technical Summary

Problems solved by technology

[0007] However, after interpolation is added, the object will set up multiple barriers at the position that the object moves within the tick time, which will cause the object to occupy a barrier that is very different from its real volume in each tick

In practical applications, if there are multiple objects, it will cause a large distance between objects, please refer to Figure 5 As shown, assuming that a tick includes four interpolation moments from T0 to T3, then at T0, object B will set barrier values ​​for all 4 grids on its path, and at T1, object B has left the first barrier Grid, but since the blocking value of occupying the grid must be restored after 1 Tick is completed, when object D starts to move, object D can only wait or detour

This will lead to a large and unreasonable gap between objects and the real simulation of object movement cannot be realized

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