void L_ExplosionEffect::howto_emit_particle(void)
{
static L_REAL radian;
static int num_particles;
static int j;
num_particles = min_particles + rand() % (max_particles - min_particles + 1);
for( j=0; j<num_particles; j++ )
{
radian = L_RAND_REAL_2()*L_2PI;
static L_REAL current_speed_dis;
if(speed_dis == 0)
current_speed_dis = 0;
else
current_speed_dis = ( L_RAND_REAL_1()*2.0f - 1.0f ) * speed_dis;
CL_Vec2f v_t;
linear_set2(v_t, explosion_level+current_speed_dis, radian );
create_particle(x_pos,y_pos,&v_t);
}
}
void L_ParticleEffect::create_particle(L_REAL in_x, L_REAL in_y, CL_Vec2f* vec_t)
{
int chosen = choose_particle();
L_Particle* par_new;
L_NEW_PAR( par_new, *fl_particle[chosen] );
CL_Vec2f vec_t2 = CL_Vec2f(0,0);
if(addit_vector_enabled == true)
{
if(vec_t != NULL)
vec_t2 = addit_vector + *vec_t;
else
vec_t2 = addit_vector;
}
else
{
if(vec_t != NULL)
vec_t2 = *vec_t;
}
par_new->set_velocity(vec_t2);
if(follow_shooting)
{
par_new->set_rotation(linear_get_radian(*vec_t));
}
else if(par_randrot_on)
{
par_new->set_rotation2(L_RAND_REAL_2()*L_2PI);
}
if(size_distortion != 0)
{
par_new->set_size( par_new->get_ref_size()+rand_size() );
}
if(life_distortion != 0)
{
int distort = rand() % life_distortion + 1;
if(rand() % 2 == 0)
distort = -distort;
par_new->set_life(par_new->get_remaininig_life()+distort);
}
par_new->x_pos = in_x;
par_new->y_pos = in_y;
par_new->initialize();
//add to list
particle_list.push_back(par_new);
}
void L_Particle::rotating_process(void)
{
if(remaining_life <= rotating_starting_time)
{
//rotating_type = 1
if(rotating_type == 1)
{
current_radian = current_radian + radian*time_elapesed;
if(current_radian >= L_2PI)
current_radian -= L_2PI;
else if(current_radian <= -L_2PI)
current_radian += L_2PI;
}
//rotating_type = 2
else if(rotating_type == 2)
{
current_radian = radian_rm + (L_REAL)(rotating_starting_time - remaining_life)/(L_REAL)rotating_starting_time * radian;
}
//rotating_type = 3
else if(rotating_type == 3)
{
current_radian = L_RAND_REAL_2() * L_2PI;
}
//rotating_type = 4
else
{
L_REAL current_radian_t = vec.get_angle();
if( current_radian_t != L_REAL_MIN )
current_radian = radian_rm + current_radian_t;
}
}
}
