PathFinding (Haxe Library)

The 'KISS' path-finding library in haxe.

Haxe is awesome language for game development. And Haxe should has the cool easy to use pathfinding lib.

Install

haxelib git pathfinding [email protected]:Partysun/hxpathfinding.git

And then in your project's hxml build file, add

-lib pathfinding

Usage

AStarFinder is the first algorythm in the library.

GridMap example:

var map:GridMap = new GridMap(9, 9);
start_node = map.getNode(2, 1);
goal_node = map.getNode(5, 4);
map.getNode(5, 1).walkable = false;
map.getNode(2, 2).walkable = false;
map.getNode(3, 2).walkable = false;
map.getNode(4, 2).walkable = false;

var pathfinder = new Pathfinding(map);
var path = pathfinder.findPath(start_node, goal_node);

trace("Path:" + path);
 

You can render debug sprite, if you work with Openfl:

debug.clear();
debug.draw(map, path);
addChild(debug.display);

WaypointsMap example:

import pathfinding.Pathfinding;
import pathfinding.core.WaypointsMap;
import pathfinding.core.Node;
import pathfinding.core.Path;

var map = new WaypointsMap();
// map generation
start = map.addNode(new Node(baseX, baseY));
map.addNode(new Node(baseX + 70, baseY));
map.addNode(new Node(baseX + 150, baseY));
map.addNode(new Node(baseX + 150, baseY + 70));
goal = map.addNode(new Node(baseX + 270, baseY));
map.nodes[0].neighbors.push(map.nodes[1]);
map.nodes[1].neighbors.push(map.nodes[0]);
map.nodes[1].neighbors.push(map.nodes[2]);
map.nodes[2].neighbors.push(map.nodes[1]);
map.nodes[2].neighbors.push(map.nodes[4]);
map.nodes[4].neighbors.push(map.nodes[2]);

// find path
var pathfinder = new Pathfinding(map);
var path = pathfinder.findPath(start, goal);

trace("Path:");
for (node in path.nodes)
{
    trace(node + "");
}

For more samples, look at sample directory.

TODO

• More useful tools
• Debug graphic mode
• Add one more algorythm
• Add flexeble interface for change a heuristic
• Add benchmark (http://www.movingai.com/benchmarks/)
• Add Heap or PriorityQueue for the openlist. It's the critical place of lib speed

CHANGELOG

v 0.2.1 - 27.02.2015

• Fix backtrace functions. Clear old data

v 0.2.0 - 18.02.2015

• Tools for GridMap. Tools help work with real game world and model of map.
• Debug mode

v 0.1.0 - 15.02.2015

• Two basic sceanrio: GridMap and WaypointsMap
• AStar algorythm
• Manhattan heuristic
• Openfl sample
• Tests