Ejemplos de get_next_in_vector en C++ (Cpp)

Ejemplo n.º 1

Archivo: misc_structs.cpp Proyecto: Espyo/Pikmin_fangame_engine

/* ----------------------------------------------------------------------------
 * Returns the subgroup type that comes after the given type.
 */
subgroup_type* subgroup_type_manager::get_next_type(
    subgroup_type* sgt
) {
    for(size_t t = 0; t < types.size(); ++t) {
        if(types[t] == sgt) {
            return get_next_in_vector(types, t);
        }
    }
    return NULL;
}

Ejemplo n.º 2

/* ----------------------------------------------------------------------------
 * Returns whether a polygon was created clockwise or anti-clockwise,
 * given the order of its vertexes.
 */
bool is_polygon_clockwise(vector<vertex*> &vertexes) {
    //Solution by http://stackoverflow.com/a/1165943
    float sum = 0;
    for(size_t v = 0; v < vertexes.size(); ++v) {
        vertex* v_ptr = vertexes[v];
        vertex* v2_ptr = get_next_in_vector(vertexes, v);
        sum += (v2_ptr->x - v_ptr->x) * (v2_ptr->y + v_ptr->y);
    }
    return sum < 0;
}