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path: root/src/libjin/graphics/particles/particle_emitter.cpp
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Diffstat (limited to 'src/libjin/graphics/particles/particle_emitter.cpp')
-rw-r--r--src/libjin/graphics/particles/particle_emitter.cpp200
1 files changed, 100 insertions, 100 deletions
diff --git a/src/libjin/graphics/particles/particle_emitter.cpp b/src/libjin/graphics/particles/particle_emitter.cpp
index 725b826..56dfb23 100644
--- a/src/libjin/graphics/particles/particle_emitter.cpp
+++ b/src/libjin/graphics/particles/particle_emitter.cpp
@@ -9,110 +9,110 @@ using namespace JinEngine::Math;
namespace JinEngine
{
- namespace Graphics
- {
- namespace Particles
- {
+ namespace Graphics
+ {
+ namespace Particles
+ {
- static const uint8 ACCURACY_4 = 4;
- static const uint8 ACCURACY_5 = 5;
- static const uint8 ACCURACY_6 = 6;
+ static const uint8 ACCURACY_4 = 4;
+ static const uint8 ACCURACY_5 = 5;
+ static const uint8 ACCURACY_6 = 6;
- // Particle emitter
- static RandomGenerator rng(0xEA44944);
+ // Particle emitter
+ static RandomGenerator rng(0xEA44944);
- ParticleEmitter::ParticleEmitter(ParticleSystem& ps)
- : mPS(ps)
- , mDef(ps.mDef.emitterDef)
- , mPDef(ps.mDef.particleDef)
- , mTime(0)
- {
- }
+ ParticleEmitter::ParticleEmitter(ParticleSystem& ps)
+ : mPS(ps)
+ , mDef(ps.mDef.emitterDef)
+ , mPDef(ps.mDef.particleDef)
+ , mTime(0)
+ {
+ }
- void ParticleEmitter::update(float dt)
- {
- mTime += dt;
- for (;mTime >= mInterval; mTime -= mInterval)
- {
- emit();
- // Random rate.
- if (mDef.emitRateDef.enableRandom)
- mInterval = rng.randf(mDef.emitRateDef.rate.random.floor, mDef.emitRateDef.rate.random.ceil, ACCURACY_5);
- else
- mInterval = mDef.emitRateDef.rate.rate;
- }
- }
+ void ParticleEmitter::update(float dt)
+ {
+ mTime += dt;
+ for (;mTime >= mInterval; mTime -= mInterval)
+ {
+ emit();
+ // Random rate.
+ if (mDef.emitRateDef.enableRandom)
+ mInterval = rng.randf(mDef.emitRateDef.rate.random.floor, mDef.emitRateDef.rate.random.ceil, ACCURACY_5);
+ else
+ mInterval = mDef.emitRateDef.rate.rate;
+ }
+ }
- void ParticleEmitter::emit()
- {
- Particle* p = mPS.claim();
- if (p == nullptr)
- return;
- p->reset();
- p->def = &mPDef;
- // Init position.
- if (mDef.positionDef.enableRandom)
- {
- float x = rng.randf(mDef.positionDef.position.random.floor.x(), mDef.positionDef.position.random.ceil.x(), ACCURACY_4);
- float y = rng.randf(mDef.positionDef.position.random.floor.y(), mDef.positionDef.position.random.ceil.y(), ACCURACY_4);
- x += mPS.mPosition.x();
- y += mPS.mPosition.y();
- p->transform.setPosition(x, y);
- }
- else
- {
- p->transform.setPosition(mDef.positionDef.position.position + mPS.mPosition);
- }
- // Init speed.
- float r = 0;
- if (mDef.directionDef.enableRandom)
- r = rng.randf(mDef.directionDef.direction.random.floor, mDef.directionDef.direction.random.ceil, ACCURACY_4);
- else
- r = mDef.directionDef.direction.direction;
- float f = 0;
- if (mDef.forceDef.enableRandom)
- f = rng.randf(mDef.forceDef.force.random.floor, mDef.forceDef.force.random.ceil, ACCURACY_4);
- else
- f = mDef.forceDef.force.force;
- p->velocity.set(f*cos(r), f*sin(r));
- if (f != 0) p->updateFlags |= Particle::UPDATE_POSITION;
- // Init life time.
- if (mPDef.lifeTimeDef.enableRandom)
- p->lifeTime = rng.randf(mPDef.lifeTimeDef.life.random.floor, mPDef.lifeTimeDef.life.random.ceil, ACCURACY_4);
- else
- p->lifeTime = mPDef.lifeTimeDef.life.life;
- // Init linear accelaration.
- p->linearAcceleration = mPDef.linearAccelarationDef.linearAccelaration;
- if(!p->linearAcceleration.isZero())
- p->updateFlags |= (Particle::UPDATE_VELOCITY | Particle::UPDATE_POSITION);
- // Init angular accelaration.
- p->radialAcceleration = mPDef.radialAccelarationDef.radialAccelaration;
- // Init Angular speed.
- if (mPDef.angularSpeedDef.enableRandom)
- p->angularSpeed = rng.randf(mPDef.angularSpeedDef.angularSpeed.random.floor, mPDef.angularSpeedDef.angularSpeed.random.ceil, ACCURACY_4);
- else
- p->angularSpeed = mPDef.angularSpeedDef.angularSpeed.angularSpeed;
- if (p->angularSpeed != 0)
- p->updateFlags |= Particle::UPDATE_ROTATION;
- // Scale over time.
- if (mPDef.scaleDef.overTime.enable)
- p->updateFlags |= Particle::UPDATE_SCALE;
- else
- p->transform.setScale(mPDef.scaleDef.scale, mPDef.scaleDef.scale);
- // Color over time.
- if (mPDef.colorDef.overTime.enable)
- p->updateFlags |= Particle::UPDATE_COLOR;
- else
- p->color = mPDef.colorDef.color;
- // Sprite
- if (mPDef.spritesDef.mode != SpriteMode::SINGLE)
- {
- p->updateFlags |= Particle::UPDATE_SPRITE;
- if (mPDef.spritesDef.mode == SpriteMode::RANDOM)
- p->spriteIndex = rng.rand(0, mPDef.spritesDef.sprites.size() - 1);
- }
- }
+ void ParticleEmitter::emit()
+ {
+ Particle* p = mPS.claim();
+ if (p == nullptr)
+ return;
+ p->reset();
+ p->def = &mPDef;
+ // Init position.
+ if (mDef.positionDef.enableRandom)
+ {
+ float x = rng.randf(mDef.positionDef.position.random.floor.x(), mDef.positionDef.position.random.ceil.x(), ACCURACY_4);
+ float y = rng.randf(mDef.positionDef.position.random.floor.y(), mDef.positionDef.position.random.ceil.y(), ACCURACY_4);
+ x += mPS.mPosition.x();
+ y += mPS.mPosition.y();
+ p->transform.setPosition(x, y);
+ }
+ else
+ {
+ p->transform.setPosition(mDef.positionDef.position.position + mPS.mPosition);
+ }
+ // Init speed.
+ float r = 0;
+ if (mDef.directionDef.enableRandom)
+ r = rng.randf(mDef.directionDef.direction.random.floor, mDef.directionDef.direction.random.ceil, ACCURACY_4);
+ else
+ r = mDef.directionDef.direction.direction;
+ float f = 0;
+ if (mDef.forceDef.enableRandom)
+ f = rng.randf(mDef.forceDef.force.random.floor, mDef.forceDef.force.random.ceil, ACCURACY_4);
+ else
+ f = mDef.forceDef.force.force;
+ p->velocity.set(f*cos(r), f*sin(r));
+ if (f != 0) p->updateFlags |= Particle::UPDATE_POSITION;
+ // Init life time.
+ if (mPDef.lifeTimeDef.enableRandom)
+ p->lifeTime = rng.randf(mPDef.lifeTimeDef.life.random.floor, mPDef.lifeTimeDef.life.random.ceil, ACCURACY_4);
+ else
+ p->lifeTime = mPDef.lifeTimeDef.life.life;
+ // Init linear accelaration.
+ p->linearAcceleration = mPDef.linearAccelarationDef.linearAccelaration;
+ if(!p->linearAcceleration.isZero())
+ p->updateFlags |= (Particle::UPDATE_VELOCITY | Particle::UPDATE_POSITION);
+ // Init angular accelaration.
+ p->radialAcceleration = mPDef.radialAccelarationDef.radialAccelaration;
+ // Init Angular speed.
+ if (mPDef.angularSpeedDef.enableRandom)
+ p->angularSpeed = rng.randf(mPDef.angularSpeedDef.angularSpeed.random.floor, mPDef.angularSpeedDef.angularSpeed.random.ceil, ACCURACY_4);
+ else
+ p->angularSpeed = mPDef.angularSpeedDef.angularSpeed.angularSpeed;
+ if (p->angularSpeed != 0)
+ p->updateFlags |= Particle::UPDATE_ROTATION;
+ // Scale over time.
+ if (mPDef.scaleDef.overTime.enable)
+ p->updateFlags |= Particle::UPDATE_SCALE;
+ else
+ p->transform.setScale(mPDef.scaleDef.scale, mPDef.scaleDef.scale);
+ // Color over time.
+ if (mPDef.colorDef.overTime.enable)
+ p->updateFlags |= Particle::UPDATE_COLOR;
+ else
+ p->color = mPDef.colorDef.color;
+ // Sprite
+ if (mPDef.spritesDef.mode != SpriteMode::SINGLE)
+ {
+ p->updateFlags |= Particle::UPDATE_SPRITE;
+ if (mPDef.spritesDef.mode == SpriteMode::RANDOM)
+ p->spriteIndex = rng.rand(0, mPDef.spritesDef.sprites.size() - 1);
+ }
+ }
- }
- }
+ }
+ }
} \ No newline at end of file
generated by cgit v1.1-26-g67d0 at 2025-05-18 19:40:45 +0000