I am currently working on my Python game, in ika, which uses python 2.5 I decided to use A* pathfinding for the AI. However, I find it too slow for my needs (3-4 enemies can lag the game, but I wo...

Feb 22, 2022 · I am trying to build a very simple A* Search Algorithm in Python 3. Given the following distances for each node (considering S is the starting node and G the end one) further_cost = {'s': 11.2, 'a...

Because your question specifies numpy OR python: There is at least one astar solver in python available on PyPi. Also there seems to be a few options on GitHub, one of which leverages numpy and c++ (hopefully efficiently).

Jun 23, 2020 · The A* algorithm is a path-finding algorithm similar to Dijkstra's algorithm, and works by visiting nodes (using a heuristic to decide which node to visit next), and comparing this node to the nodes already visited which are in the closed list.

I am implementing a symmetric bidirectional A* shortest path algorithm, as mentioned in [Goldberg and Harrelson,2005]. This is only for understanding the algorithm, therefore I used the most basic version without any optimization steps.

Oct 31, 2021 · Can you explain your code, or give a link to your reference for A* ? There's a few odd things, like returning the 'path' global variable and not using it, or rebuilding the distance dictionary in every recursive call, that make this an invalid implementation of A*.

May 16, 2022 · To solve problem 83 of project euler I tried to use the A* algorithm. The algorithm works fine for the given problem and I get the correct result. But when I visualized the algorithm I realized tha...

Mar 9, 2011 · I have to write a program to calculate a**b % c where b and c are both very large numbers. If I just use a**b % c, it's really slow. Then I found that the built-in function pow () can do this really fast by calling pow (a, b, c). I'm curious to know how does Python implement this? Or where could I find the source code file that implement this ...

Mar 8, 2022 · So, I've got an assignment, I need to implement the A* algorithm in Python, but I've hit a roadblock. I've written most of it, but I can't figure out why isn't it working properly (i.e doesn't prod...

Dec 4, 2017 · I've been following along the Wikipedia pseudocode for an A * implementation in Python. My code reaches the goal, but I can't seem to figure out how to reconstruct the actual path.