java - Libgdx 测试直线是否与矩形相交

Question

有没有办法可以测试矩形对象是否与直线碰撞？谢谢!

编辑:

public boolean overlapsLineNodes(Vector2 point1, Vector2 point2) {

    boolean collide = false;

    MapObjects mapObjects = play.getWorld().level.getCurrentLevel().getLayers().get("collidable").getObjects();

    Tools.shapeRenderer.setAutoShapeType(true);
    Tools.shapeRenderer.setProjectionMatrix(play.getCamera().combined);
    Tools.shapeRenderer.begin();

    for (RectangleMapObject rectangleObject : mapObjects.getByType(RectangleMapObject.class)) {

        rectangle.setX(rectangleObject.getRectangle().x * 1/64f);
        rectangle.setY(rectangleObject.getRectangle().y * 1/64f);
        rectangle.setWidth(rectangleObject.getRectangle().width * 1/64f);
        rectangle.setHeight(rectangleObject.getRectangle().height * 1/64f);

        float   x1 = rectangle.x, y1 = rectangle.y + rectangle.height,
                x2 = rectangle.x + rectangle.width, y2 = rectangle.y + rectangle.height,
                x3 = rectangle.x + rectangle.width, y3 = rectangle.y,
                x4 = rectangle.x, y4 = rectangle.y;

        Vector2 start = point1, end = point2;

        float[] floatArray = new float[]{x1, y1, x2, y2, x3, y3, x4, y4};
        polygon.setVertices(floatArray);

        if (Intersector.intersectLinePolygon(start, end, polygon)) {
            Tools.shapeRenderer.setColor(Color.GREEN);
            collide = true;
        }

        Tools.shapeRenderer.line(point1.x, point1.y, point2.x, point2.y);

        Tools.shapeRenderer.rect(rectangle.x, rectangle.y, rectangle.width, rectangle.height);

        Tools.shapeRenderer.setColor(Color.WHITE);


    }

我这样做了，但似乎没有给我正确的结果。我将所有矩形贴图对象渲染为白色，如果其中一个与线发生碰撞，则将其渲染为绿色。它随机地将一些呈现为绿色，我不明白为什么。

Answer 1

问题是 intersectLinePolygon 是错误的方法!我应该使用 intersectSegmentPolygon。