A-star | Straightforward A * implementation in Java

 by   jonasnick Java Version: Current License: No License

kandi X-RAY | A-star Summary

kandi X-RAY | A-star Summary

A-star is a Java library. A-star has no bugs, it has no vulnerabilities and it has low support. However A-star build file is not available. You can download it from GitHub.

usage: extend the ASearchNode class and implement IGoalNode interface.

            kandi-support Support

              A-star has a low active ecosystem.
              It has 26 star(s) with 17 fork(s). There are 1 watchers for this library.
              It had no major release in the last 6 months.
              There are 1 open issues and 0 have been closed. On average issues are closed in 2393 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of A-star is current.

            kandi-Quality Quality

              A-star has 0 bugs and 0 code smells.

            kandi-Security Security

              A-star has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              A-star code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              A-star does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              A-star releases are not available. You will need to build from source code and install.
              A-star has no build file. You will be need to create the build yourself to build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              A-star saves you 239 person hours of effort in developing the same functionality from scratch.
              It has 583 lines of code, 100 functions and 17 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed A-star and discovered the below as its top functions. This is intended to give you an instant insight into A-star implemented functionality, and help decide if they suit your requirements.
            • Returns the shortest path between two search nodes
            • Returns the path from the given node
            • Performs a search
            • Removes a search node
            • Removes the specified key and value pair
            • Returns the search node for the given node
            • Returns the value associated with the given key
            • Remove a search node from the cache
            • Removes the first key from the tree
            • Gets the number of elements in this queue
            • Returns the number of elements in this forest
            • Returns true if the given search node exists
            • Get the total estimated cost of the node
            • Returns a string representation of this cache
            • Adds a search node
            • Returns true if the given search node exists in the search list
            • Returns the smallest of this search node
            • Add a search node
            • Returns the number of elements
            • Returns the minimum
            • Returns true if the specified key exists
            • Pops and removes a search node from the queue
            • Removes the search query
            • Is the tree empty
            • Clears the cache
            • Returns the nearest search node
            Get all kandi verified functions for this library.

            A-star Key Features

            No Key Features are available at this moment for A-star.

            A-star Examples and Code Snippets

            No Code Snippets are available at this moment for A-star.

            Community Discussions


            Python numpy replacing values that are in certain pattern
            Asked 2022-Apr-04 at 09:51

            I am trying to 'avoid walls' using an A* star (A-Star) algorithm. My array look like this:



            Answered 2022-Apr-04 at 06:20

            Here's an example where it just finds all the values that are zero in each row and sets the path as the middle argument. If there was a row with two patches of zeros, this could run into trouble. In that case, you would need to make sure that the arguments above and below a zero patch are also zero patches.

            I have used matplotlib here to visualize the path:

            Source https://stackoverflow.com/questions/71732641


            How to calculate diagonal distance on a 3 dimensional grid
            Asked 2022-Mar-10 at 13:53

            I'm trying to adapt Sebastian Lague's A-Star path finding code (youtube) to 3 dimensions. I have it somewhat working but occasionally the path produced between my nodes is sub-optimal, and I think it's because I'm calculating distance wrong.

            To move along a single dimension from one node to the next is a distance of 1. To move in 2 dimensions (diagonally) the distance is √2 (which is simplified to 1.4 in the code). These values are multiplied by 10 to keep them as integers, so 10 and 14 respectively.

            To calculate the distance on a 2d plane you take the smaller of the X and Y distances and multiply it by 14, then minus the smaller distance from the larger one and multiply what remains by 10.



            Answered 2022-Mar-10 at 13:40

            In your code, changing location in two dimensions should be based on 14 (10 * square root of 2), but changing in all three dimensions at once should be based on 17 (10 * square root of 3), if my quick math is correct. I suspect that may solve your issue.

            (Sure enough...here's a short explanation of why it should be based on sqrt(3).)

            Source https://stackoverflow.com/questions/71424976


            How to calculate the exact rotation of the polygon?
            Asked 2022-Mar-07 at 16:31

            I am creating a star shape in svg with this

            The code is following



            Answered 2022-Mar-07 at 16:31

            Here's a solution that calculates rotation based on number of arms:

            For 5 arms (as per question):

            Source https://stackoverflow.com/questions/71383621


            React Router Dom Issue - localhost:3000/products to localhost:3000/products/2 is working fine but when I refresh page then I get some error in console
            Asked 2022-Feb-25 at 09:01

            I have an Index.js where I am getting data via async function and sending data to ProductList Component and from ProductList Component I am sending an id onclick of product Image and then I get Product Detail Page a Single Product. I get Single Product with no issues but when I refresh then I get an error in console saying - Cannot read properties of undefined (reading 'filter') I have used REDUX.




            Answered 2022-Feb-23 at 16:58

            From what I can see, the ProductDetails component is missing a dependency on the id route param to select the correct products to filter, and I am assuming that since the index file is fetching and populating the store each time it mounts that perhaps the initial products state is null, undefined, or some other non-array value that is missing the filter method.

            Add the missing id route param to the useEffect hook's dependency array so products are fetched when the route changes.

            Source https://stackoverflow.com/questions/71236944


            in my react application the first image in component display but the 4 others one didn't
            Asked 2022-Feb-20 at 14:20

            I want to display 5 images in website e-commerce. so they are all inside the same folder images and had the same size but the first one is displayed but the rest didn't I don't know why. if it had a mistake in this code i think all the images don't display that no expect just one image please help me so these are my files :

            app.js file :



            Answered 2022-Feb-20 at 14:20

            No. you can not do that. Please put your image into public/images and use an absolute path like /images/product-5.jpg for the image.

            Source https://stackoverflow.com/questions/71195292


            how to show stars based on user rating?
            Asked 2022-Feb-08 at 17:53

            i woud like to show star based on rating . i can only show one product with rating stars and the other products don't show any star only show rating number. could help to check which part need to change ?



            Answered 2022-Feb-07 at 18:07


            Search Bar showing footer when any word is typed in thats not on the product cards
            Asked 2022-Jan-28 at 19:02

            I have implemented a search bar on my website and when a name of a product card is typed in it works. However, if you was to type in a word such as "lol' or any other word that is not included on the product cards the footer begins to show. I'm wanting the footer to stay in its current place which is at the bottom of the page.

            I will be uploading code snippets and the files to my server so you can view the entire website and the problems I am experiencing.

            I hope all of the information provided shows the problem I am experiencing.

            [Click the product page to see the problem I am experiencing or click run snippet below][1] [1]: https://kipplo.co.uk/kipplov2



            Answered 2022-Jan-28 at 19:02

            I would just wrap it with id or class and set it min-height:100vh;. Its the easiest way, not the cleanest code. Hope it helped!

            Source https://stackoverflow.com/questions/70854834


            Losing useState Value on Refresh in React.js
            Asked 2022-Jan-24 at 16:27

            I am sending an id from ProductListing Component and I am receiving that id using useParams in ProductDetail Component. In ProductDetail Component I am finding an object using find method and then I am setting it into singleProduct state. On refresh I get singleProduct is undefined.




            Answered 2022-Jan-24 at 11:02

            That's a normal behaviour, state is being reset on refresh per specification. If you want to preserve it you need to make use of localStorage/sessionStorage/cookies etc.

            Which is best way?

            Well I would say that the second approach is better. I would avoid keeping copy of state in localstorage. I would only keep some kind of token/id (in your case uid) which uniquely identify the user and would fetch fresh data every time. When your application grows it can be hard to manage those states in localstorage.

            Source https://stackoverflow.com/questions/70832675


            Extracting data from html and generating a CSV
            Asked 2022-Jan-17 at 11:31

            I have a large HTML file that contains about 400 customer reviews. Is there a tool that I can use to scrap the file and grab specific data out of it and put them in a CSV file? The goal is to transfer these reviews from an old website into a new website for the same company.

            The HTML that contains each review looks like this (the file has 400 of these blocks):



            Answered 2022-Jan-17 at 11:31

            Using python (although it can be also done with both js and php) and utilizing xpath, you can try the following:

            Source https://stackoverflow.com/questions/70723669


            can't retrieve data because of 'undefined' value
            Asked 2022-Jan-08 at 15:32

            In my website i am listing movies and tv series that users can share their comments on them. Users can add comments, but when it comes to receiving comments, an undefined value is returned. (I am trying to get comments from movieComment. movieComment store comments for the movie)



            Answered 2022-Jan-08 at 14:19

            Focusing on this function:

            Source https://stackoverflow.com/questions/70632705

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install A-star

            You can download it from GitHub.
            You can use A-star like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the A-star component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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