diff options
author | jaroWMR <jarorutjes07@gmail.com> | 2024-10-09 19:58:30 +0200 |
---|---|---|
committer | jaroWMR <jarorutjes07@gmail.com> | 2024-10-09 19:58:30 +0200 |
commit | 2884c56b066fcafb4f0042799f8a16ea3b238d2a (patch) | |
tree | 9c30844807e8ab5f48a17773d19e5b565cb1a59d /src/example/particel.cpp | |
parent | 5f84969c851530ebc430be2cf8e99c945ff7a4a7 (diff) | |
parent | 08d0b07c19edfe8c81dfe4e21c0d4c1ef128b628 (diff) |
merge with master
Diffstat (limited to 'src/example/particel.cpp')
-rw-r--r-- | src/example/particel.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/example/particel.cpp b/src/example/particel.cpp new file mode 100644 index 0000000..58480a9 --- /dev/null +++ b/src/example/particel.cpp @@ -0,0 +1,82 @@ +#include <iostream> +#include <thread> +#include <chrono> +#include "SDLApp.hpp" +#include "ParticleEmitter.hpp" +#include "ParticleSystem.hpp" +#include "Particle.hpp" +#include <chrono> + +const int WINDOW_WIDTH = 800; +const int WINDOW_HEIGHT = 600; + +int main(int argc, char* argv[]) { + SDLApp app(WINDOW_WIDTH, WINDOW_HEIGHT); + + if (!app.initialize()) { + std::cerr << "Failed to initialize SDLApp." << std::endl; + return 1; + } + + ParticleSystem particleSystem; + + unsigned int maxParticles = 100; // maximum number of particles + unsigned int emissionRate = 1; // particles created per second + unsigned int speed = 50; // base speed of particles + unsigned int speedOffset = 10; // random offset for particle speed + unsigned int angle = 90; // base angle of particle emission + unsigned int angleOffset = 30; // random offset for particle angle + float beginLifespan = 0.0f; // beginning lifespan of particles + float endLifespan = 2.0f; // ending lifespan of particles + + // Vector to hold all the emitters + std::vector<ParticleEmitter> emitters; + + // Loop to create 1000 emitters + for (unsigned int i = 0; i < 1000; ++i) { + ParticleEmitter emitter(maxParticles, emissionRate, speed, speedOffset, angle, angleOffset, beginLifespan, endLifespan); + + // Set a position for each emitter, modifying the position for demonstration + emitter.m_position = {static_cast<float>(200 + (i % 100)), static_cast<float>(200 + (i / 100) * 10)}; // Adjust position for each emitter + + emitters.push_back(emitter); // Add the emitter to the vector + } + float deltaTime = 0.1f; + bool running = true; + std::cout << "start loop " << std::endl; + while (running) { + app.handleEvents(running); + + // Start timing + auto start = std::chrono::high_resolution_clock::now(); + + particleSystem.update(deltaTime, emitters); // update particle system with delta time and emitters + + // End timing + auto end = std::chrono::high_resolution_clock::now(); + std::chrono::duration<float, std::milli> duration = end - start; // get duration in milliseconds + + std::cout << "Update took " << duration.count() << " ms" << std::endl; + app.clearScreen(); + + start = std::chrono::high_resolution_clock::now(); + // render particles using the drawSquare method from SDLApp + for (const ParticleEmitter& emitter : emitters) { + for (const Particle& particle : emitter.particles) { + if(particle.active)app.drawSquare(particle.position.x, particle.position.y, 5); // draw each particle + } + } + + + app.presentScreen(); + end = std::chrono::high_resolution_clock::now(); + duration = end - start; // get duration in milliseconds + + std::cout << "screen took " << duration.count() << " ms" << std::endl; + + std::this_thread::sleep_for(std::chrono::milliseconds(20)); // simulate ~50 FPS + } + + app.cleanUp(); + return 0; +} |