int main() {
srand(time(NULL));
Screen screen;
if (screen.init() == false) {
cout << "Error initialising SDL." << endl;
}
Swarm swarm;
while (true) {
// Update particles
// Draw particles
int elapsed = SDL_GetTicks();
screen.clear();
swarm.update();
unsigned char green =
(unsigned char) ((1 + sin(elapsed * 0.0001)) * 128);
unsigned char red = (unsigned char) ((1 + sin(elapsed * 0.0002)) * 128);
unsigned char blue = (unsigned char) ((1 + sin(elapsed * 0.0003)) * 128);
const Particle * const pParticles = swarm.getParticles();
for (int i = 0; i < Swarm::NPARTICLES; i++) {
Particle particle = pParticles[i];
int x = (particle.m_x + 1) * Screen::SCREEN_WIDTH / 2;
int y = (particle.m_y + 1) * Screen::SCREEN_HEIGHT / 2;
screen.setPixel(x, y, red, green, blue);
}
// Draw the screen
screen.update();
// Check for messages/events
if (screen.processEvents() == false) {
break;
}
}
screen.close();
return 0;
}
int main(){
Screen screen;
try{
srand(time(NULL));
if(screen.init() == false){
cout << "Error initialising SDL." << endl;
}
Swarm swarm;
while(true){
int elapsed = SDL_GetTicks();
swarm.update(elapsed);
unsigned char red = (1 + sin(elapsed * 0.0001)) * 128;
unsigned char green = (1 + sin(elapsed * 0.0002)) * 128;
unsigned char blue = (1 + sin(elapsed * 0.0003)) * 128;
const Particle * const pParticles = swarm.getParticles();
for(int i=0; i<Swarm::NPARTICLES; i++){
Particle particle = pParticles[i];
int x = (particle.m_x + 1) * Screen::SCREEN_WIDTH / 2;
int y = particle.m_y * Screen::SCREEN_WIDTH / 2 + Screen::SCREEN_HEIGHT / 2;
screen.setPixel(x, y, red, green, blue);
}
screen.boxBlur();
//draw the screen
screen.update();
if(screen.processEvents() == false){
break;
}
}
} catch(...){
cout << "exception occured";
}
screen.close();
return 0;
}
int main() {
srand(time(NULL));
Screen screen;
Swarm swarm;
if (!screen.init()) {
cout << "Error initializing SDL" << flush;
}
while (true) {
const Particle* const pParticles = swarm.getParticles();
screen.clear();
swarm.update();
int elapsed = SDL_GetTicks();
unsigned char green = (unsigned char) (1 + sin(elapsed * 0.001) * 128);
unsigned char red = (unsigned char) (1 + sin(elapsed * 0.002) * 128);
unsigned char blue = (unsigned char) (1 + sin(elapsed * 0.003) * 128);
// unsigned char blue = 255;
// unsigned char red = 255;
// unsigned char green = 255;
for (int i = 0; i < Swarm::NPARTICLES; i++) {
Particle particle = pParticles[i];
int x = (particle.m_x + 1) * Screen::SCREEN_WIDTH / 2;
int y = particle.m_y * Screen::SCREEN_WIDTH / 2
+ Screen::SCREEN_HEIGHT / 2;
screen.setPixel(x, y, red, green, blue);
}
screen.screenUpdate();
if (!screen.processEvents()) {
break;
}
}
screen.close();
return 0;
}
int main() {
srand(time(NULL));
Screen screen;
screen.init();
Swarm swarm;
int halfWidth = screen.width() / 2;
int halfHeight = screen.height() / 2;
while (true) {
swarm.update(SDL_GetTicks());
const Particle * const pParticles = swarm.particles();
for (int i = 0; i < swarm.size(); i++) {
int x = pParticles[i].x() * halfWidth + halfWidth;
int y = pParticles[i].y() * halfWidth + halfHeight;
screen.setPixel(x, y, pParticles[i].red(), pParticles[i].green(),
pParticles[i].blue());
}
screen.boxBlur();
screen.update();
if (!screen.processEvents()) {
break;
}
}
screen.close();
return 0;
}