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/*
render/renderext.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#include <sstream>
#include <iomanip>
#include "math/functions.h"
#include "core/application.h"
#include "core/entity.h"
#include "core/entityglobe.h"
#include "core/range.h"
#include "model/model.h"
#include "render/camera.h"
#include "render/renderext.h"
#include "render/render.h"
#include "render/textures.h"
#include "sys/sys.h"
namespace render
{
RenderExt::RenderExt(core::Entity *entity) : core::Extension(core::Extension::Render, entity)
{
state_visible = false;
state_detailvisible = false;
state_fuzz = math::randomf();
state_enginetime = state_fuzz * core::application()->time();
state_explosion = 0;
if (!entity->model() && entity->modelname().size()) {
entity->set_modelname(entity->modelname());
if (!entity->model())
entity->set_modelname("");
}
if (entity->model()) {
model::Model *model = entity->model();
for (model::Model::Lights::iterator lit = model->lights().begin(); lit != model->lights().end(); lit++) {
model::Light *light = (*lit);
// load light texture
std::stringstream flarename;
flarename << "textures/fx/flare" << std::setfill('0') << std::setw(2) << light->flare();
light->set_texture(Textures::load(flarename.str()));
}
for (model::Model::Flares::iterator flit = model->flares().begin(); flit != model->flares().end(); flit++) {
model::Flare *flare = (*flit);
// load flare texture
std::stringstream flarename;
flarename << "textures/fx/flare" << std::setfill('0') << std::setw(2) << flare->flare();
flare->set_texture(Textures::load(flarename.str()));
}
for (model::Model::ParticleSystems::const_iterator pit = model->particles().begin(); pit != model->particles().end(); pit++) {
// model attachment location tag
const model::Particles *particlesystem = (*pit);
// load particle systems
const ParticleScript *script = ParticleScript::load(particlesystem->script());
while (script) {
if ( script->type() == render::ParticleScript::Trail) {
Trail *trail = new Trail(script, entity, particlesystem);
state_particles.push_back(trail);
} else if (script->type() == render::ParticleScript::Jet) {
Jet *jet = new Jet(script, entity, particlesystem);
state_particles.push_back(jet);
} else if (script->type() == render::ParticleScript::Spray) {
Spray *spray = new Spray(script, entity, particlesystem);
state_particles.push_back(spray);
} else if (script->type() == render::ParticleScript::Flame) {
Flame *flame = new Flame(script, entity, particlesystem);
state_particles.push_back(flame);
}
script = script->next();
}
}
} else if (entity->type() == core::Entity::Globe) {
core::EntityGlobe *globe = static_cast<core::EntityGlobe *>(entity);
// load globe textures
if (!globe->texture_id() && globe->texturename().size()) {
globe->set_texture_id(Textures::load("textures/" + globe->texturename()));
if (!globe->texture_id())
globe->set_texturename("");
}
if (!globe->corona_id() && globe->coronaname().size()) {
globe->set_corona_id(Textures::bind("textures/corona/" + globe->coronaname()));
if (!globe->corona_id()) {
globe->set_coronaname("");
}
}
}
}
RenderExt::~RenderExt()
{
for (ParticleSystems::iterator it = state_particles.begin(); it != state_particles.end(); it++) {
delete(*it);
}
state_particles.clear();
}
void RenderExt::frame(float elapsed)
{
state_distance = math::distance(Camera::eye(), entity()->location());
state_visible = entity()->visible();
state_detailvisible = false;
state_behind = false;
state_power = true;
state_thrust = 0.0f;
if (!state_visible)
return;
int state = core::Entity::Normal;
if (entity()->type() == core::Entity::Dynamic) {
state = static_cast<core::EntityDynamic *>(entity())->state();
if ((state == core::Entity::NoPower) || (state == core::Entity::Destroyed)) {
state_power = false;
}
state_enginetime += elapsed;
} else if ((entity()->type() == core::Entity::Controlable)) {
core::EntityControlable *controlable = static_cast<core::EntityControlable *>(entity());
state = controlable->state();
if (controlable->state() == core::Entity::Docked) {
state_visible = false;
state_power = false;
return;
}
if ((controlable == core::localcontrol()) && (Camera::mode() == Camera::Cockpit)) {
state_visible = false;
return;
}
if ((controlable->state() == core::Entity::NoPower) || (controlable->state() == core::Entity::Destroyed)) {
state_power = false;
}
if ((controlable->state() == core::Entity::Impulse) || (controlable->state() == core::Entity::ImpulseInitiate)) {
state_thrust = 1.0f;
} else {
state_thrust = controlable->thrust();
}
state_enginetime += elapsed * state_thrust;
} else {
state_enginetime += elapsed;
}
if (state == core::Entity::Destroyed) {
if (!state_explosion) {
// add explosion
const ParticleScript *script = ParticleScript::load("explosion");
if (script) {
state_explosion = (ParticleSystem *) new Spray(script, entity(), 0);
state_particles.push_back(state_explosion);
}
}
} else {
if (state_explosion) {
// remove explosion
for (ParticleSystems::iterator it = particles().begin(); state_explosion && (it != particles().end()); it++) {
if ((*it) == state_explosion) {
particles().erase(it);
state_explosion = 0;
}
}
}
}
if (entity()->model()) {
if (distance() < core::range::fxdistance) {
// entity within detail range
state_visible = true;
state_detailvisible = true;
} else if (distance() < core::range::maxdistance) {
// funky radius factor
float r = entity()->model()->radius();
math::clamp(r, entity()->model()->radius(), core::range::maxdistance / core::range::fxdistance);
if (distance() < core::range::fxdistance * r) {
// entity within drawing distance, outside detail range
state_visible = true;
state_detailvisible = false;
} else {
// entity within drawing distance, outside detail range
state_visible = true;
state_detailvisible = false;
}
} else {
// entity out of range
state_visible = false;
state_detailvisible = false;
return;
}
}
if (math::dotproduct(Camera::axis().forward(), entity()->location() + Camera::axis().forward() * entity()->radius() - Camera::eye()) < 0.0f) {
state_behind = true;
}
}
} // namespace render
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