Hi guys, i'm stuck in this piece of code. I've made this array of circles, which got a dynamic outline opacity. Its should become a template for blinking lights. My question is: how can i made multiple instances of it, which appear in random places? Also feel free to play around with the code, by modifying:
PULSEPARTS, p_radius and p_outline.
#include "pch.h"
#include <SFML/Graphics.hpp>
#include <iostream>
using namespace sf;
int main()
{
RenderWindow window(VideoMode(800, 600), "Starfield", Style::Close);
window.setVerticalSyncEnabled(true);
window.setFramerateLimit(60);
// Stars ///////////////////////////////////////////////////
int s_blink = 5;
int s_blinkspeed = 1;
const int PULSEPARTS = 10;
CircleShape pulse[PULSEPARTS];
int p_radius = 5;
int j = 0;
int p_outline = 1;
int p_blink[PULSEPARTS];
int p_blinkspeed = 1;
// Random generator
srand((int)time(0) * 10);
float p_width = (rand() % 800);
float p_height = (rand() % 600);
for (int i = 0; i < PULSEPARTS; i++) {
if (i == 0) {
pulse[i].setOutlineThickness(p_outline*=-1);
}
pulse[i].setRadius(p_radius + j);
j += p_outline;
pulse[i].setPointCount(100);
pulse[i].setPosition(p_width, p_height);
pulse[i].setOutlineThickness(p_outline);
pulse[i].setOrigin(p_radius+j, p_radius+j);
pulse[i].setFillColor(Color::Transparent);
}
///////////////////////////////////////////////////////////
while (window.isOpen())
{
Event event;
while (window.pollEvent(event))
{
if (event.type == Event::Closed)
window.close();
}
s_blink -= s_blinkspeed;
if (s_blink <= 0) {
s_blinkspeed *= -1;
}
else if (s_blink >= 255) {
s_blinkspeed *= -1;
}
for (int i = 0; i < PULSEPARTS; i++) {
pulse[i].setOutlineColor(Color(255, 255, 255, i* s_blink));
}
window.clear();
for (int i = 0; i < PULSEPARTS; i++) {
window.draw(pulse[i]);
}
window.display();
}
return 0;
}
