void _update_position(int v, int tl, int tr, int pos, const T& val) {
if (tl == tr) {
t[v] = val;
} else {
int tm = (tl + tr)>>1;
if (pos <= tm) _update_position(v*2, tl, tm, pos, val);
else _update_position(v*2+1, tm+1, tr, pos, val);
t[v] = op(t[v*2], t[v*2+1]);
}
}
void Mouse::update() {
if (locked) {
_update_position();
if (lock_updated && active) {
pos -= glm::vec2(center_x, center_y);
SDL_WarpMouse(center_x, center_y);
} else {
pos = glm::vec2(0.0f, 0.0f);
lock_updated = true;
}
} else {
_update_position();
}
}
void
p3d_emitter_update(struct p3d_emitter* et, float dt, float* mat) {
if (et->active) {
float rate = et->cfg->emission_time / et->cfg->count;
et->emit_counter += dt;
if (et->loop) {
while (et->emit_counter > rate) {
_add_particle_random(et, mat);
et->emit_counter -= rate;
}
} else {
if (!et->cfg->static_mode) {
while (et->emit_counter > rate && et->particle_count < et->cfg->count) {
_add_particle_random(et, mat);
++et->particle_count;
et->emit_counter -= rate;
}
} else {
if (!et->static_mode_finished) {
_add_particle_static(et, mat);
et->static_mode_finished = true;
}
}
}
}
struct p3d_particle* prev = NULL;
struct p3d_particle* curr = et->head;
while (curr) {
if (curr->ud) {
struct ps_vec2 pos;
ps_vec3_projection(&curr->pos, &pos);
UPDATE_FUNC(curr->ud, pos.x + mat[4], pos.y + mat[5]);
}
curr->life -= dt;
if (curr->life > 0) {
_update_speed(et, dt, curr);
_update_angle(et, dt, curr);
_update_position(et, dt, curr);
prev = curr;
curr = curr->next;
} else {
struct p3d_particle* next = curr->next;
if (prev) {
prev->next = next;
}
_remove_particle(et, curr);
if (et->head == curr) {
et->head = next;
if (!next) {
et->tail = NULL;
}
}
curr = next;
}
}
et->tail = prev;
}
