Examples with AStarGrid com.almasb.fxgl.pathfinding.astar.AStarGrid used on opensource projects

Example 1 with AStarGrid

use of com.almasb.fxgl.pathfinding.astar.AStarGrid in project FXGL by AlmasB.

the class PathfindingSample method initGame.

@Override
protected void initGame() {
    // 2. init grid width x height
    grid = new AStarGrid(GRID_WIDTH, GRID_HEIGHT);
    pathfinder = new AStarPathfinder(grid);
    grid.forEach(c -> {
        var x = c.getX();
        var y = c.getY();
        Rectangle rect = new Rectangle(CELL_WIDTH - 2, CELL_HEIGHT - 2);
        rect.setFill(Color.WHITE);
        rect.setStroke(Color.BLACK);
        Entity tile = entityBuilder().at(x * CELL_WIDTH, y * CELL_HEIGHT).view(rect).buildAndAttach();
        rect.setOnMouseClicked(e -> {
            // if left click do search, else place a red obstacle
            if (e.getButton() == MouseButton.PRIMARY) {
                var cells = pathfinder.findPath(0, 0, x, y);
                cells.forEach(cell -> {
                    getGameWorld().getEntitiesAt(new Point2D(cell.getX() * CELL_WIDTH, cell.getY() * CELL_HEIGHT)).forEach(Entity::removeFromWorld);
                });
            } else {
                grid.get(x, y).setState(CellState.NOT_WALKABLE);
                rect.setFill(Color.RED);
            }
        });
    });
    var e = entityBuilder().viewWithBBox(new Rectangle(20, 20)).with(new CellMoveComponent(CELL_WIDTH, CELL_HEIGHT, 100)).buildAndAttach();
    e.getComponent(CellMoveComponent.class).setPositionToCell(1, 1);
}

Example 2 with AStarGrid

use of com.almasb.fxgl.pathfinding.astar.AStarGrid in project FXGL by AlmasB.

the class MassUnitsRTSSample method initGame.

@Override
protected void initGame() {
    // 2. init grid width x height
    grid = new AStarGrid(GRID_WIDTH, GRID_HEIGHT);
    pathfinder = new AStarPathfinder(grid);
    grid.forEach(c -> {
        var x = c.getX();
        var y = c.getY();
        Rectangle rect = new Rectangle(CELL_WIDTH - 2, CELL_HEIGHT - 2);
        rect.setFill(Color.WHITE);
        // rect.setStroke(Color.BLACK);
        Entity tile = entityBuilder().at(x * CELL_WIDTH, y * CELL_HEIGHT).view(rect).with(new IDComponent("" + x + "," + y, 0)).buildAndAttach();
        rect.setOnMouseClicked(event -> {
            // if left click do search, else place a red obstacle
            if (event.getButton() == MouseButton.PRIMARY) {
                var units = getGameWorld().getEntitiesFiltered(e -> e.getPropertyOptional("type").isPresent());
                var cells = grid.getWalkableCells().stream().sorted(Comparator.comparingInt(cell -> cell.distance(grid.get(x, y)))).limit(units.size()).collect(Collectors.toList());
                Collections.shuffle(cells);
                for (int i = 0; i < units.size(); i++) {
                    var unit = units.get(i);
                    var cell = cells.get(i);
                    unit.getComponent(AStarMoveComponent.class).moveToCell(cell);
                }
            }
        });
    });
    for (int i = 0; i < 485; i++) {
        var color = FXGLMath.randomColor().darker().darker();
        var e = entityBuilder().viewWithBBox(new Circle(CELL_WIDTH / 4, CELL_WIDTH / 4, CELL_WIDTH / 4, color)).with(new CellMoveComponent(CELL_WIDTH, CELL_HEIGHT, 300)).with(new AStarMoveComponent(grid)).with("type", "unit").buildAndAttach();
    }
}