LODObjectImposter.cpp

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#include <tdme/engine/LODObjectImposter.h>
 
#include <memory>
#include <string>
#include <vector>
 
#include <tdme/tdme.h>
#include <tdme/engine/Engine.h>
#include <tdme/engine/Object.h>
#include <tdme/engine/Partition.h>
#include <tdme/engine/Transform.h>
 
using std::make_unique;
using std::string;
using std::unique_ptr;
using std::vector;
 
using tdme::engine::Engine;
using tdme::engine::LODObjectImposter;
using tdme::engine::Object;
using tdme::engine::Partition;
using tdme::engine::Transform;
 
LODObjectImposter::LODObjectImposter(
    const string& id,
    Model* modelLOD1,
    const vector<Model*>& imposterModelsLOD2,
    float lod2MinDistance,
    float lodNoneMinDistance
):
    id(id),
    modelLOD1(modelLOD1),
    lod2MinDistance(lod2MinDistance),
    lodNoneMinDistance(lodNoneMinDistance)
{
    this->enabled = true;
    this->pickable = false;
    this->contributesShadows = false;
    this->receivesShadows = false;
    this->effectColorMul.set(1.0f, 1.0f, 1.0f, 1.0f);
    this->effectColorAdd.set(0.0f, 0.0f, 0.0f, 0.0f);
    this->effectColorMulLOD2.set(1.0f, 1.0f, 1.0f, 1.0f);
    this->effectColorAddLOD2.set(0.0f, 0.0f, 0.0f, 0.0f);
    this->entityTransformMatrix.identity();
 
    objectLOD1 = make_unique<Object>(id + ".lod1", modelLOD1);
    objectLOD1->setParentEntity(this);
 
    objectLOD2 = make_unique<ImposterObject>(id + ".lod2", imposterModelsLOD2);
    objectLOD2->setParentEntity(this);
 
    objectLOD1->setRenderPass(renderPass);
    objectLOD2->setRenderPass(renderPass);
 
    objectLOD1->setShader(shaderId);
    objectLOD2->setShader(shaderId);
 
    levelLOD = 1;
}
 
LODObjectImposter::~LODObjectImposter() {
}
 
void LODObjectImposter::setEngine(Engine* engine)
{
    if (this->engine != nullptr) this->engine->deregisterEntity(this);
    this->engine = engine;
    if (engine != nullptr) engine->registerEntity(this);
    objectLOD1->setEngine(engine);
    objectLOD2->setEngine(engine);
}
 
void LODObjectImposter::setRenderer(Renderer* renderer)
{
}
 
void LODObjectImposter::setTransform(const Transform& transform)
{
    Transform::setTransform(transform);
    //
    auto entityTransform = parentTransform * (*this);
    entityTransformMatrix = entityTransform.getTransformMatrix();
    // delegate to LOD objects
    objectLOD1->setTransform(entityTransform);
    objectLOD2->setTransform(entityTransform);
    // update entity
    if (parentEntity == nullptr && frustumCulling == true && engine != nullptr && enabled == true) engine->partition->updateEntity(this);
    // reset current LOD object
    objectLOD = nullptr;
}
 
void LODObjectImposter::update()
{
    Transform::update();
    //
    auto entityTransform = parentTransform * (*this);
    entityTransformMatrix = entityTransform.getTransformMatrix();
    // delegate to LOD objects
    objectLOD1->setTransform(entityTransform);
    objectLOD2->setTransform(entityTransform);
    // update entity
    if (parentEntity == nullptr && frustumCulling == true && engine != nullptr && enabled == true) engine->partition->updateEntity(this);
    // reset current LOD object
    objectLOD = nullptr;
}
 
void LODObjectImposter::setEnabled(bool enabled)
{
    // return if enable state has not changed
    if (this->enabled == enabled) return;
    // frustum if root entity
    if (parentEntity == nullptr) {
        // frustum culling enabled?
        if (frustumCulling == true) {
            // yeo, add or remove from partition
            if (enabled == true) {
                if (engine != nullptr) engine->partition->addEntity(this);
            } else {
                if (engine != nullptr) engine->partition->removeEntity(this);
            }
        }
    }
    // reset current LOD object
    objectLOD = nullptr;
}
 
bool LODObjectImposter::isFrustumCulling() {
    return frustumCulling;
}
 
void LODObjectImposter::setFrustumCulling(bool frustumCulling) {
    // check if enabled and engine attached
    if (enabled == true && engine != nullptr) {
        // had frustum culling
        if (this->frustumCulling == true) {
            // yep, remove if set to false now
            if (frustumCulling == false) engine->partition->removeEntity(this);
        } else {
            // yep, add if set to true now
            if (frustumCulling == true) engine->partition->addEntity(this);
        }
    }
    this->frustumCulling = frustumCulling;
    // delegate change to engine
    if (engine != nullptr) engine->updateEntityRegistration(this);
}
 
void LODObjectImposter::dispose()
{
    // delegate to LOD objects
    objectLOD1->dispose();
    objectLOD2->dispose();
}
 
void LODObjectImposter::initialize()
{
    // delegate to LOD objects
    objectLOD1->initialize();
    objectLOD2->initialize();
}