void ParticleRenderer::RenderFireBillboard(float angle, float _size, const vec3& color, float opacity, const vec3& position) {
ScopeLock lock(lock_);
temp_fires_.push_back(Billboard());
Billboard& billboard = temp_fires_.back();
billboard.position_ = position;
billboard.color_ = color;
billboard.texture_index_ = total_texture_count_-1;
billboard.depth_ = 1000.0f;
billboard.size_factor_ = _size;
billboard.angle_ = angle;
billboard.opacity_ = opacity;
}
void BattleView::UpdateTerrainTrees(bounds2f bounds)
{
if (_smoothTerrainSurface != nullptr && _simulator->GetGroundMap() != nullptr)
{
auto pos2 = std::remove_if(_billboardModel->staticBillboards.begin(), _billboardModel->staticBillboards.end(), [bounds](const Billboard& billboard) {
return bounds.contains(billboard.position.xy());
});
_billboardModel->staticBillboards.erase(pos2, _billboardModel->staticBillboards.end());
static random_generator* _randoms = nullptr;
if (_randoms == nullptr)
_randoms = new random_generator(997);
int treeType = 0;
random_iterator random(*_randoms);
bounds2f mapbounds = _simulator->GetGroundMap()->GetBounds();
glm::vec2 center = mapbounds.center();
float radius = mapbounds.width() / 2;
float d = 5 * mapbounds.width() / 1024;
for (float x = mapbounds.min.x; x < mapbounds.max.x; x += d)
for (float y = mapbounds.min.y; y < mapbounds.max.y; y += d)
{
float dx = d * (random.next() - 0.5f);
float dy = d * (random.next() - 0.5f);
int shape = (int)(15 * random.next()) & 15;
glm::vec2 position = glm::vec2(x + dx, y + dy);
if (bounds.contains(position) && glm::distance(position, center) < radius)
{
if (_simulator->GetHeightMap()->InterpolateHeight(position) > 0 && _simulator->GetGroundMap()->IsForest(position))
{
const float adjust = 0.5 - 2.0 / 64.0; // place texture 2 texels below ground
_billboardModel->staticBillboards.push_back(Billboard(GetTerrainPosition(position, adjust * 5), 0, 5, _billboardModel->_billboardTreeShapes[shape]));
}
}
++treeType;
}
}
}
void ParticleRenderer::CreateBillboards(const vec3& position, float strength, const vec3& velocity, const vec3& target_velocity,
float end_turbulence, float time_factor, float size_factor, const vec3& start_color, const vec3& color, BillboardArray& billboards, int count) {
for (int x = 0; x < count; ++x) {
billboards.push_back(Billboard());
Billboard& billboard = billboards.back();
billboard.velocity_ = velocity + RNDVEC(strength);
const vec3 this_particles_target_velocity = Math::Lerp(target_velocity*0.8f, target_velocity, Random::Uniform(0.0f, 2.0f));
billboard.target_velocity_ = RNDVEC(end_turbulence) + this_particles_target_velocity;
billboard.position_ = position;
billboard.start_color_ = RNDCOL(start_color, 0.9f, 1.1f);
billboard.color_ = RNDCOL(color, 0.7f, 1.3f);
billboard.texture_index_ = Random::GetRandomNumber() % gas_texture_count_;
billboard.depth_ = 1000.0f;
billboard.size_factor_ = Random::Uniform(size_factor*0.7f, size_factor*1.4f);
billboard.angle_ = Random::Uniform(0.0f, 2*PIF);
billboard.angular_velocity_ = Random::Uniform(-5.0f, +5.0f);
billboard.opacity_ = 0;
billboard.opacity_factor_ = 1;
billboard.opacity_time_ = Random::Uniform(0.0f, 0.3f);
deb_assert(time_factor > 0);
billboard.time_factor_ = Random::Uniform(time_factor*0.7f, time_factor*1.3f);
}
}
