fxgl-ai-pathfinding

Implement AI movement and pathfinding in FXGL — set up an AStarGrid, find paths using AStarPathfinder, attach AStarMoveComponent or RandomAStarMoveComponent to entities, implement GOAP (Goal-Oriented Action Planning) with world state and action preconditions, add SenseAI for vision and hearing, set up waypoint patrol routes, generate dungeons and mazes procedurally. Use this skill when making enemies chase the player, implementing patrol behaviours, building GOAP NPC AI, adding pathfinding to a tile-based game, or generating procedural levels.

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Repositorio: JohannesRabauer/fxgl-skills
Última actividad en el origen: 4 de junio de 2026 a las 06:53
Idioma detectado de SKILL.md: inglés
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Forks: 0

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npx skills add https://github.com/JohannesRabauer/fxgl-skills --skill fxgl-ai-pathfinding

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FXGL AI — Pathfinding, GOAP & Sense AI

A* Pathfinding Setup

Build the grid from the world

// Create grid after level is loaded (in initGame, after setLevelFromMap) private AStarGrid grid; @Override protected void initGame() { setLevelFromMap("level1.tmx"); // Build grid: tile size must match Tiled tile width/height grid = AStarGrid.fromWorld(getGameWorld(), 32, 32); // Cells corresponding to WALL-type entities are automatically NOT_WALKABLE // Mark additional non-walkable cells: getGameWorld().getEntitiesByType(EntityType.OBSTACLE).forEach(e -> { int cx = (int)(e.getX() / 32); int cy = (int)(e.getY() / 32); grid.getCell(cx, cy).setState(CellState.NOT_WALKABLE); }); }

Find a path manually

// Returns null if no path exists List<AStarCell> path = grid.getAStarSearch().findPath( (int)(startX / 32), // cell X of start (int)(startY / 32), // cell Y of start (int)(goalX / 32), // cell X of goal (int)(goalY / 32) // cell Y of goal ); if (path != null) { path.forEach(cell -> { double worldX = cell.getX() * ; cell.getY() * ; System.out.println( + worldX + + worldY); }); }

FXGL AI — Pathfinding, GOAP & Sense AI

A* Pathfinding Setup

Build the grid from the world

Find a path manually

// Each action: preconditions + effects + cost + perform logic public class FindWeaponAction extends GoapAction { public FindWeaponAction() { // Preconditions: none (always possible if weapon exists in world) // Effects: hasWeapon = true addEffect("hasWeapon", true); setCost(2.0f); } @Override public boolean checkProceduralPrecondition(Entity agent) { // Return true only if a weapon entity exists in the world return !getGameWorld().getEntitiesByType(EntityType.WEAPON).isEmpty(); } @Override public boolean perform(Entity agent) { // Move toward nearest weapon and pick it up Entity weapon = getGameWorld().getClosestEntity(agent, e -> e.isType(EntityType.WEAPON)); agent.getComponent(AStarMoveComponent.class).moveTo(weapon.getPosition()); if (agent.getPosition().distance(weapon.getPosition()) < 20) { weapon.removeFromWorld(); return true; // action complete } return false; // still in progress } } public class AttackAction extends GoapAction { public AttackAction() { addPrecondition("hasWeapon", true); addPrecondition("inRange", true); addEffect("enemyDead", true); addEffect("hasAmmo", false); setCost(1.0f); } @Override public boolean perform(Entity agent) { agent.getComponent(AttackComponent.class).attack(); return true; } } public class MoveInRangeAction extends GoapAction { public MoveInRangeAction() { addPrecondition("hasWeapon", true); addEffect("inRange", true); setCost(1.5f); } @Override public boolean perform(Entity agent) { Entity player = getGameWorld().getSingleton(e -> e.isType(EntityType.PLAYER)); if (agent.getPosition().distance(player.getPosition()) < 100) { return true; } agent.getComponent(AStarMoveComponent.class).moveTo(player.getPosition()); return false; } }

name	fxgl-ai-pathfinding
description	Implement AI movement and pathfinding in FXGL — set up an AStarGrid, find paths using AStarPathfinder, attach AStarMoveComponent or RandomAStarMoveComponent to entities, implement GOAP (Goal-Oriented Action Planning) with world state and action preconditions, add SenseAI for vision and hearing, set up waypoint patrol routes, generate dungeons and mazes procedurally. Use this skill when making enemies chase the player, implementing patrol behaviours, building GOAP NPC AI, adding pathfinding to a tile-based game, or generating procedural levels.
triggers	["A*","pathfinding","AStarGrid","AStarMoveComponent","GOAP","enemy AI","patrol","chase","SenseAI","dungeon generation","maze","waypoint","enemy movement"]
compatibility	Java 17+, FXGL 21.x
category	fxgl/ai
tags	["fxgl","java","javafx","ai","pathfinding"]
metadata	{"author":"fxgl-skills","version":"1.0","fxgl-version":"21.1"}
allowed-tools	["Read","Write","Edit","Bash"]

name	fxgl-ai-pathfinding
description	Implement AI movement and pathfinding in FXGL — set up an AStarGrid, find paths using AStarPathfinder, attach AStarMoveComponent or RandomAStarMoveComponent to entities, implement GOAP (Goal-Oriented Action Planning) with world state and action preconditions, add SenseAI for vision and hearing, set up waypoint patrol routes, generate dungeons and mazes procedurally. Use this skill when making enemies chase the player, implementing patrol behaviours, building GOAP NPC AI, adding pathfinding to a tile-based game, or generating procedural levels.
triggers	["A*","pathfinding","AStarGrid","AStarMoveComponent","GOAP","enemy AI","patrol","chase","SenseAI","dungeon generation","maze","waypoint","enemy movement"]
compatibility	Java 17+, FXGL 21.x
category	fxgl/ai
tags	["fxgl","java","javafx","ai","pathfinding"]
metadata	{"author":"fxgl-skills","version":"1.0","fxgl-version":"21.1"}
allowed-tools	["Read","Write","Edit","Bash"]

fxgl-ai-pathfinding

Opciones de instalación

Revisa los archivos de origen