void Ball::add_speed()
{
if (velocity_x() < 0.0f) {
if (m_ball_speed.x() >= -8 && m_ball_speed.y() >= -6) {
m_ball_speed += m_ball_speed() * Random::get_real(0.1f, 0.15f);
m_last_ball_speed = m_ball_speed;
}
}
else {
if (m_ball_speed.x() <= 8 && m_ball_speed.y() <= 6) {
m_ball_speed += m_ball_speed() * Random::get_real(0.1f, 0.15f);
m_last_ball_speed = m_ball_speed;
}
}
Debug::log("New speed is: x(", velocity_x(), ") y(", velocity_y(), ")");
}
void simulator::update_particle_position_velocity()
{
int comID=0;
for(int i=0;i<p_particle_data->num_body;i++)
{
if(p_particle_data->contact)
comID=p_particle_data->body_list[i]->component_id;
for(int p=p_particle_data->body_list[i]->begin;p<p_particle_data->body_list[i]->end;p++)
{
particle* pp=p_particle_data->particle_list[p];
pp->icell=p_grid_data->in_which_cell(pp->position_t);
if(pp->icell<0)
continue;
cinder::Vec3f position_x=pp->position_t;
cinder::Vec3f velocity_x(0,0,0);
cinder::Vec3f acceleration_x(0,0,0);
for(int ss=0;ss<8;ss++)
p_grid_data->influenced_node_list[ss]=p_grid_data->cell_node_list[pp->icell][ss];
if(p_particle_data->GIMP)
{
p_grid_data->get_influenced_node_list(pp,pp->icell);
p_grid_data->calc_shape_function_GIMP(pp);
}
else
p_grid_data->calc_shape_function(p_grid_data->grid_node_list[p_grid_data->influenced_node_list[0]],pp,2);
for(int m=0;m<p_grid_data->num_influence_node;m++)
{
if(p_grid_data->influenced_node_list[m]>=0&&p_grid_data->influenced_node_list[m]<p_grid_data->num_gridnode)
{
grid_node_property* gnp=p_grid_data->grid_node_property_list[comID][p_grid_data->influenced_node_list[m]];
if(gnp->mass>p_grid_data->mass_cutoff)
{
velocity_x+=gnp->momentum/gnp->mass*p_grid_data->value_shape_func[m];
acceleration_x+=gnp->force/gnp->mass*p_grid_data->value_shape_func[m];
}
}
}
//update particle
pp->position_t_1=position_x+velocity_x*p_particle_data->time_interval;
if(p_particle_data->current_step==1)
pp->velocity+=acceleration_x*p_particle_data->time_interval*0.5f;
else
pp->velocity+=acceleration_x*p_particle_data->time_interval;
if(p_particle_data->USF)
pp->position_t=pp->position_t_1;
}
}
}
void Ball::move(SDL_Rect* player1, SDL_Rect* player2)
{
m_BRect.x += velocity_x();
m_BRect.y += velocity_y();
// Detecting the collision in the Y axis.
if(m_BRect.y <= 0) {
velocity_y(-m_ball_speed.y());
m_last_ball_speed = m_ball_speed;
}
if(m_BRect.y+m_BRect.h > Window::get_height()) {
velocity_y(-m_ball_speed.y());
m_last_ball_speed = m_ball_speed;
}
// Detecting the collision with the players.
if(collision(player1)) {
if (m_BRect.x + abs(velocity_x()) < player1->x + player1->w) {
velocity_y(-m_ball_speed.y());
}
else {
if (Paddle::get_hits() == 3) {
add_speed();
velocity_x(-m_ball_speed.x());
Paddle::reset_hit_count();
}
else {
velocity_x(-m_ball_speed.x());
}
}
m_last_ball_speed = m_ball_speed;
if(Game::audio->is_open()) {
Game::audio->play_effect(Audio::EffectType::hit_paddle);
}
Debug::log("Hit count: ", Paddle::get_hits());
Paddle::add_hit();
}
if(collision(player2)) {
if ((m_BRect.x + m_BRect.w)-velocity_x() > player2->x) {
velocity_y(-m_ball_speed.y());
}
else {
velocity_x(-m_ball_speed.x());
if(Paddle::get_hits() == 3) {
add_speed();
Paddle::reset_hit_count();
}
else {
}
}
m_last_ball_speed = m_ball_speed;
if(Game::audio->is_open()) {
Game::audio->play_effect(Audio::EffectType::hit_paddle);
}
Debug::log("Hit count: ", Paddle::get_hits());
Paddle::add_hit();
}
}
