/**
* Returns the highest layer where a specified rectangle overlaps an existing entity.
*
* @param rectangle a rectangle
* @return the highest layer where an entity exists in this rectangle, or Layer.LOW if there is
* nothing here
*/
public Layer getLayerInRectangle(Rectangle rectangle) {
Layer[] layers = {Layer.HIGH, Layer.INTERMEDIATE, Layer.LOW};
for (Layer layer : layers) {
for (MapEntity entity : allEntities[layer.getId()]) {
if (rectangle.intersects(entity.getPositionInMap())) {
return layer;
}
}
}
return Layer.LOW;
}
/**
* Returns the entities located in a rectangle defined by two points.
*
* @param x1 x coordinate of the first point
* @param y1 y coordinate of the first point
* @param x2 x coordinate of the second point
* @param y2 y coordinate of the second point
*/
public List<MapEntity> getEntitiesInRectangle(int x1, int y1, int x2, int y2) {
List<MapEntity> entitiesInRectangle = new LinkedList<MapEntity>();
int x = Math.min(x1, x2);
int width = Math.abs(x2 - x1);
int y = Math.min(y1, y2);
int height = Math.abs(y2 - y1);
Rectangle rectangle = new Rectangle(x, y, width, height);
for (Layer layer : Layer.values()) {
for (MapEntity entity : allEntities[layer.getId()]) {
if (rectangle.contains(entity.getPositionInMap())) {
entitiesInRectangle.add(entity);
}
}
}
return entitiesInRectangle;
}