Intersection World::trace(const Segment &segment, const FindFilter &filter) const {
Intersection out;
if(filter.m_flags & Flags::tile) {
pair<int, float> isect = m_tile_map.trace(segment, -1, filter.m_flags);
if(isect.first != -1)
out = Intersection(ObjectRef(isect.first, false), isect.second);
}
if(filter.m_flags & Flags::entity) {
int ignore_index = filterIgnoreIndex(filter);
pair<int, float> isect = m_entity_map.trace(segment, ignore_index, filter.m_flags);
if(isect.first != -1 && isect.second <= out.distance())
out = Intersection(ObjectRef(isect.first, true), isect.second);
}
return out;
}
Intersection WorldViewer::trace(const Segment &segment, const FindFilter &filter) const {
Intersection out;
if(filter.flags() & Flags::tile)
out = m_world->trace(segment, (filter.flags() & ~Flags::entity) | Flags::visible);
if(filter.flags() & Flags::entity) {
int ignore_index = m_world->filterIgnoreIndex(filter);
for(int n = 0; n < (int)m_entities.size(); n++) {
const Entity *entity = refEntity(n);
if(!entity || !m_occluder_config.isVisible(m_entities[n].occluder_id) || !Flags::test(entity->flags(), filter.flags()) || n == ignore_index)
continue;
float distance = intersection(segment, entity->boundingBox());
if(distance < out.distance())
out = Intersection(ObjectRef(n, true), distance);
}
}
return out;
}
void Turret::fireProjectile(const FBox &target_box, const Weapon &weapon, float randomness) {
if(isClient())
return;
Segment best_ray = computeBestShootingRay(target_box, weapon);
if(randomness > 0.0f) {
float3 dir = perturbVector(best_ray.dir(), random(), random(), randomness);
best_ray = Ray(best_ray.origin(), dir);
}
#ifdef DEBUG_SHOOTING
{
m_aiming_lines.clear();
m_aiming_lines.push_back(best_ray.origin());
Intersection isect = trace(best_ray, {Flags::all | Flags::colliding, ref()});
m_aiming_lines.push_back(best_ray.origin() + best_ray.dir() * isect.distance());
}
#endif
//TODO: spawned projectiles should be centered
if( const ProjectileProto *proj_proto = weapon.projectileProto() )
addNewEntity<Projectile>(best_ray.origin(), *proj_proto, actualDirAngle(), best_ray.dir(), ref(), weapon.proto().damage_mod);
}
