void RenderingEngine::DrawParticles(simlist<Particle>* particles, long particlesLength, PointArrays* arrays){
if(_currentTexture->Name != Factory::Instance->TextureParticle->Name){
glBindTexture(GL_TEXTURE_2D, Factory::Instance->TextureParticle->Name);
glEnableVertexAttribArray(_attributes.Position);
glDisableVertexAttribArray(_attributes.TextureCoord);
glUniform1i(_uniforms.IsParticle, GL_TRUE);
glUniform1i(_uniforms.HasColorChange, GL_TRUE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE);
_currentTexture = Factory::Instance->TextureParticle;
}
int v = 0;
int c = 0;
simnode<Particle>* node = particles->head;
while (node != NULL) {
Particle* p = node->data;
vec2 pos = p->Pos();
vec4 color = p->Color();
arrays->vertices[v++] = pos.x;
arrays->vertices[v++] = pos.y;
arrays->colors[c++] = color.x;
arrays->colors[c++] = color.y;
arrays->colors[c++] = color.z;
arrays->colors[c++] = color.w;
node = node->next;
}
glVertexAttribPointer(_attributes.Position, 2, GL_FLOAT, GL_FALSE, 0, arrays->vertices);
glVertexAttribPointer(_attributes.Color, 4, GL_FLOAT, GL_FALSE, 0, arrays->colors);
glDrawArrays(GL_POINTS, 0, particlesLength);
}
// Scene 04
void Scene04(float time, float dt)
{
static const float cameraBobbleSpeed = 0.5f;
static const float cameraBobble = 0.1f;
static float wobbleParameter = 0.0f;
// Get world
World* world = WorldSingleton::Get();
// Move tanks
redTank1->SetTargetPosition(Vector3f(160.0f, 0.0f, -16.0f));
redTank2->SetTargetPosition(Vector3f(60.0f, 0.0f, -16.0f));
blueTank1->SetTargetPosition(Vector3f(-128.0f, 0.0f, -64.0f));
blueTank2->SetTargetPosition(Vector3f(432.0f, 0.0f, -80.0f));
redTank1->SetTargetVelocity(30.0f);
redTank2->SetTargetVelocity(30.0f);
blueTank1->SetTargetVelocity(30.0f);
blueTank2->SetTargetVelocity(30.0f);
redTank1->Update(dt, terrain);
redTank2->Update(dt, terrain);
blueTank1->Update(dt, terrain);
blueTank2->Update(dt, terrain);
redTank1->OrientToTerrain(terrain, dt);
redTank2->OrientToTerrain(terrain, dt);
blueTank1->OrientToTerrain(terrain, dt);
blueTank2->OrientToTerrain(terrain, dt);
blueTank1->OrientTurret(-5.0f, Approach(blueTank1->GetTurretOrientation().y, -80.0f, 1.0f, dt));
blueTank2->OrientTurret(-10.0f, Approach(blueTank2->GetTurretOrientation().y, 90.0f, 1.0f, dt));
// Spit particles
static Trigger* particleSpawnTimer = new Trigger(0.25f);
static Lerp2f* sizeLerp = new Lerp2f(Vector2f(4.0f, 4.0f), Vector2f(8.0f, 8.0f));
particleSpawnTimer->SetPlayState(Loop);
particleSpawnTimer->Update(dt);
if( particleSpawnTimer->DoTrigger() )
{
cout << "Trigger..." << endl;
PointManager* pointManager = PointManagerSingleton::Get();
Particle* particle;
particle = pointManager->EmitParticle();
if( particle )
{
particle->MaxLife() = Rnd(0.25f, 1.5f);
particle->Life() = particle->MaxLife();
particle->Rotation() = Rnd(0.0f, 360.0f);
particle->Position() = redTank1->GetPosition()+Vector3f(Rnd(-4.0f, 4.0f), Rnd(0.0f, 4.0f), Rnd(-4.0f, 4.0f));
particle->Velocity().Set(Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f));
particle->Size() = sizeLerp;
particle->SetTexture(smokeTexture);
particle->Color().Set(140.0f/255.0f, 128.0f/255.0f, 112.0f/255.0f, 0.75f);
}
particle = pointManager->EmitParticle();
if( particle )
{
particle->MaxLife() = Rnd(0.25f, 1.5f);
particle->Life() = particle->MaxLife();
particle->Rotation() = Rnd(0.0f, 360.0f);
particle->Position() = redTank2->GetPosition()+Vector3f(Rnd(-4.0f, 4.0f), Rnd(0.0f, 4.0f), Rnd(-4.0f, 4.0f));
particle->Velocity().Set(Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f));
particle->Size() = sizeLerp;
particle->SetTexture(smokeTexture);
particle->Color().Set(140.0f/255.0f, 128.0f/255.0f, 112.0f/255.0f, 0.75f);
}
}
// Orbit camera
wobbleParameter += 30.0f*(1.0f+sin(wobbleParameter*0.4f)*0.05f)*dt;
mainCamera->SetFieldOfView(90.0f);
mainCamera->SetPosition(500.0f, 700.0f, -300.0f);
mainCamera->SetEulerRotation(
-60.0f+sin(wobbleParameter*0.2f*cameraBobbleSpeed)*3.0f*cameraBobble-5,
120.0f+sin(wobbleParameter*0.1f*cameraBobbleSpeed)*6.0f*cameraBobble,
sin(wobbleParameter*0.05f*cameraBobbleSpeed)*30.0f*cameraBobble);
// Update blur effect
blurEffect->SetBlurFactor(0.6f);
}
// Scene 03
void Scene03(float time, float dt)
{
// Get world
World* world = WorldSingleton::Get();
// Move tanks
redTank1->SetTargetPosition(Vector3f(160.0f, 0.0f, -16.0f));
redTank2->SetTargetPosition(Vector3f(60.0f, 0.0f, -16.0f));
redTank1->SetTargetVelocity(30.0f);
redTank2->SetTargetVelocity(30.0f);
redTank1->Update(dt, terrain);
redTank2->Update(dt, terrain);
redTank1->OrientToTerrain(terrain, dt);
redTank2->OrientToTerrain(terrain, dt);
blueTank1->OrientToTerrain(terrain, dt);
blueTank2->OrientToTerrain(terrain, dt);
redTank1->OrientTurret(10.0f, 45.0f+Sin(time*60.0f)*30.0f);
redTank2->OrientTurret(15.0f, -30.0f+Sin(time*80.0f)*45.0f);
// Spit particles
static Trigger* particleSpawnTimer = new Trigger(0.25f);
static Lerp2f* sizeLerp = new Lerp2f(Vector2f(4.0f, 4.0f), Vector2f(8.0f, 8.0f));
particleSpawnTimer->SetPlayState(Loop);
particleSpawnTimer->Update(dt);
if( particleSpawnTimer->DoTrigger() )
{
cout << "Trigger..." << endl;
PointManager* pointManager = PointManagerSingleton::Get();
Particle* particle;
particle = pointManager->EmitParticle();
if( particle )
{
particle->MaxLife() = Rnd(0.25f, 1.5f);
particle->Life() = particle->MaxLife();
particle->Rotation() = Rnd(0.0f, 360.0f);
particle->Position() = redTank1->GetPosition()+Vector3f(Rnd(-4.0f, 4.0f), Rnd(0.0f, 4.0f), Rnd(-4.0f, 4.0f));
particle->Velocity().Set(Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f));
particle->Size() = sizeLerp;
particle->SetTexture(smokeTexture);
particle->Color().Set(140.0f/255.0f, 128.0f/255.0f, 112.0f/255.0f, 0.75f);
}
particle = pointManager->EmitParticle();
if( particle )
{
particle->MaxLife() = Rnd(0.25f, 1.5f);
particle->Life() = particle->MaxLife();
particle->Rotation() = Rnd(0.0f, 360.0f);
particle->Position() = redTank2->GetPosition()+Vector3f(Rnd(-4.0f, 4.0f), Rnd(0.0f, 4.0f), Rnd(-4.0f, 4.0f));
particle->Velocity().Set(Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f), Rnd(-1.5f, 1.5f));
particle->Size() = sizeLerp;
particle->SetTexture(smokeTexture);
particle->Color().Set(140.0f/255.0f, 128.0f/255.0f, 112.0f/255.0f, 0.75f);
}
}
// Orbit camera
mainCamera->SetFieldOfView(90.0f);
mainCamera->SetEulerRotation(-6.0f, 100.0f, 0.0f);
float yaw = mainCamera->GetEulerRotation().y;
mainCamera->SetPosition(
redTank1->GetPosition().x+Sin(yaw)*64.0f,
redTank1->GetPosition().y+18.0f,
redTank1->GetPosition().z+24.0f+Cos(yaw)*64.0f);
// Update blur effect
blurEffect->SetBlurFactor(0.7);
}
