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-rw-r--r--src/crepe/ParticleSystem.cpp21
1 files changed, 9 insertions, 12 deletions
diff --git a/src/crepe/ParticleSystem.cpp b/src/crepe/ParticleSystem.cpp
index 367f56c..f3cb939 100644
--- a/src/crepe/ParticleSystem.cpp
+++ b/src/crepe/ParticleSystem.cpp
@@ -10,13 +10,12 @@ ParticleSystem::ParticleSystem() : m_elapsedTime(0.0f) {} // Initialize m_elaps
void ParticleSystem::update(float deltaTime, std::vector<ParticleEmitter>& emitters) {
for (ParticleEmitter& emitter : emitters) {
- m_elapsedTime = deltaTime;
-
- //spawn new particles if enough time passed and the max is not achieved
- while (m_elapsedTime >= (1.0f / emitter.m_emissionRate) && emitter.particles.size() < emitter.m_maxParticles) {
- m_elapsedTime -= (1.0f / emitter.m_emissionRate);
+ float updateAmount = 1/static_cast<float>(emitter.m_emissionRate);
+ for (float i = 0; i < deltaTime; i += updateAmount)
+ {
emitParticle(emitter);
}
+
//update/move particles afterwards delete if not alive.
std::vector<Particle>::iterator it = emitter.particles.begin();
while (it != emitter.particles.end()) {
@@ -32,7 +31,7 @@ void ParticleSystem::update(float deltaTime, std::vector<ParticleEmitter>& emitt
}
void ParticleSystem::emitParticle(ParticleEmitter& emitter) {
- std::cout << "new emitter:" << std::endl;
+ // std::cout << "new emitter:" << std::endl;
Particle::Position initialPosition = { emitter.m_position.x, emitter.m_position.y };
float randomAngle = 0.0f;
//check if value is overthe 360 degrees
@@ -45,18 +44,16 @@ void ParticleSystem::emitParticle(ParticleEmitter& emitter) {
randomAngle = emitter.m_minAngle + (std::rand() % (static_cast<int>(emitter.m_maxAngle - emitter.m_minAngle + 1)));
}
- std::cout << "randomAngle:" << randomAngle << std::endl;
+
float angleInRadians = randomAngle * (M_PI / 180.0f);
float randomSpeedOffset = (static_cast<float>(std::rand()) / RAND_MAX) * (2 * emitter.m_speedOffset) - emitter.m_speedOffset;
float velocityX = (emitter.m_speed + randomSpeedOffset) * std::cos(angleInRadians);
float velocityY = (emitter.m_speed + randomSpeedOffset) * std::sin(angleInRadians);
- std::cout << "velocityX:" << velocityX << std::endl;
- std::cout << "velocityY:" << velocityY << std::endl;
Particle::Position initialVelocity = {
velocityX,
velocityY
};
- std::cout << "initialVelocityX:" << initialVelocity.x << std::endl;
- std::cout << "initialVelocityY:" << initialVelocity.y << std::endl;
- emitter.particles.emplace_back(2.0f, initialPosition, initialVelocity);
+ // std::cout << "emitter.m_endLifespan:" << emitter.m_endLifespan << std::endl;
+
+ emitter.particles.emplace_back(emitter.m_endLifespan, initialPosition, initialVelocity);
}