public Surface getSurfaceUnderVivaeObject(VivaeObject actor) {
Vector<Surface> surfacesActorIsOn = new Vector<Surface>();
Surface srfc = null;
for (Surface surface : surfaces) {
srfc = surface;
Area actArea = actor.getArea();
actArea.intersect(srfc.getArea());
if (!actArea.isEmpty()) {
surfacesActorIsOn.add(srfc);
}
}
if (surfacesActorIsOn.isEmpty()) {
return null;
}
srfc = surfacesActorIsOn.get(surfacesActorIsOn.size() - 1);
return srfc;
}
/**
* Returns a coefficient of the surface the VivaeObject is on or 0 if there is no surface.
*
* @param actor
*/
public float getFrictionOfSurface(VivaeObject actor) {
ArrayList<Surface> surfacesActorIsOn = new ArrayList<Surface>();
Surface srfc;
Area actArea = actor.getArea();
for (Surface surface : surfaces) {
srfc = surface;
Area actor2intersect = (Area) actArea.clone();
actor2intersect.intersect(srfc.getArea());
if (!actor2intersect.isEmpty()) {
surfacesActorIsOn.add(srfc);
}
}
if (surfacesActorIsOn.isEmpty()) {
return 0f;
}
srfc = surfacesActorIsOn.get(surfacesActorIsOn.size() - 1);
float res = srfc.getFriction();
// System.out.println("Surface = " + srfc.getClass().toString() + " has friction " +
// res);
return res;
}