/**
* The function creates the quadratic spline curve
*
* @param c_points control points
* @param smoothness smoothness to achieve
* @param curve holds the smooth curve
*/
void CubicSpline::cubic_spline( const std::vector<Point>& c_points,
const float& smoothness,
std::vector<Point>* curve) const {
if(is_smooth(c_points, smoothness)) {
for(unsigned int i = 0, i_end = c_points.size(); i < i_end; ++i) {
curve->push_back(c_points.at(i));
}
} else {
std::vector<Point>* sub_points = new std::vector<Point>();
sub_points->push_back(*c_points.begin());
for(int i = 0, i_end = c_points.size() -1; i < i_end; ++i) {
sub_points->push_back(c_points.at(i) * 1/2 + c_points.at(i+1) * 1/2);
if(i < i_end - 1) {
sub_points->push_back(c_points.at(i) * 1/8
+ c_points.at(i+1) * 6/8
+ c_points.at(i+2) * 1/8);
}
}
sub_points->push_back(*(c_points.end()-1));
cubic_spline(*sub_points, smoothness, curve);
delete sub_points;
}
}
/**
* @brief Returns the value of a property of this movement.
*
* Accepted keys:
* - speed
* - angle
* - max_distance
* - ignore_obstacles
* - smooth
* - displayed_direction
*
* @param key key of the property to get
* @return the corresponding value as a string
*/
const std::string StraightMovement::get_property(const std::string &key) {
std::ostringstream oss;
if (key == "speed") {
oss << get_speed();
}
else if (key == "angle") {
oss << get_angle();
}
else if (key == "max_distance") {
oss << get_max_distance();
}
else if (key == "ignore_obstacles") {
oss << are_obstacles_ignored();
}
else if (key == "smooth") {
oss << is_smooth();
}
else if (key == "displayed_direction") {
oss << get_displayed_direction4();
}
else {
Debug::die(StringConcat() << "Unknown property of StraightMovement: '" << key << "'");
}
return oss.str();
}
/**
* @brief Updates the y position of the entity if it wants to move.
*/
void StraightMovement::update_y() {
if (is_smooth()) {
update_smooth_y();
}
else {
update_non_smooth_y();
}
}
