feat: #102 add straight emitter & sphere zone

Projects/Skylicht/Components/Source/ParticleSystem/Particles/CFactory.cpp

@@ -57,6 +57,14 @@ namespace Skylicht
 			return e;
 		}
 
+		CStraightEmitter* CFactory::createStraightEmitter(const core::vector3df& direction)
+		{
+			CStraightEmitter *e = new CStraightEmitter();
+			e->setDirection(direction);
+			m_emitters.push_back(e);
+			return e;
+		}
+
 		void CFactory::deleteEmitter(CEmitter *e)
 		{
 			std::vector<CEmitter*>::iterator i = std::find(m_emitters.begin(), m_emitters.end(), e);
@@ -91,6 +99,13 @@ namespace Skylicht
 			return z;
 		}
 
+		CSphere* CFactory::createSphereZone(const core::vector3df& pos, float radius)
+		{
+			CSphere *z = new CSphere(pos, radius);
+			m_zones.push_back(z);
+			return z;
+		}
+
 		void CFactory::deleteZone(CZone *z)
 		{
 			std::vector<CZone*>::iterator i = std::find(m_zones.begin(), m_zones.end(), z);

Projects/Skylicht/Components/Source/ParticleSystem/Particles/CFactory.h

@@ -29,8 +29,12 @@ This file is part of the "Skylicht Engine".
 #include "Emitters/CEmitter.h"
 
 #include "Renderers/CQuadRenderer.h"
+
 #include "Zones/CPoint.h"
+#include "Zones/CSphere.h"
+
 #include "Emitters/CRandomEmitter.h"
+#include "Emitters/CStraightEmitter.h"
 
 namespace Skylicht
 {
@@ -50,6 +54,8 @@ namespace Skylicht
 
 			CRandomEmitter* createRandomEmitter();
 
+			CStraightEmitter* createStraightEmitter(const core::vector3df& direction);
+
 			void deleteEmitter(CEmitter *e);
 
 			CQuadRenderer* createQuadRenderer();
@@ -58,6 +64,8 @@ namespace Skylicht
 
 			CPoint* createPointZone();
 
+			CSphere* createSphereZone(const core::vector3df& pos, float radius);
+
 			void deleteZone(CZone *z);
 		};
 	}

Projects/Skylicht/Components/Source/ParticleSystem/Particles/Emitters/CEmitter.h

@@ -33,7 +33,8 @@ namespace Skylicht
 
 		enum EEmitter
 		{
-			Random
+			Random,
+			Straight,
 		};
 
 		class CEmitter

Projects/Skylicht/Components/Source/ParticleSystem/Particles/Emitters/CStraightEmitter.cpp

@@ -0,0 +1,50 @@
+/*
+!@
+MIT License
+
+Copyright (c) 2020 Skylicht Technology CO., LTD
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files
+(the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify,
+merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+This file is part of the "Skylicht Engine".
+https://github.com/skylicht-lab/skylicht-engine
+!#
+*/
+
+#include "pch.h"
+#include "CStraightEmitter.h"
+#include "ParticleSystem/Particles/CParticle.h"
+
+namespace Skylicht
+{
+	namespace Particle
+	{
+		CStraightEmitter::CStraightEmitter() :
+			CEmitter(Straight),
+			m_direction(0.0f, 1.0f, 0.0f)
+		{
+
+		}
+
+		CStraightEmitter::~CStraightEmitter()
+		{
+
+		}
+
+		void CStraightEmitter::generateVelocity(CParticle& particle, float speed, CZone* zone)
+		{
+			particle.Velocity = m_direction * speed;
+		}
+	}
+}

Projects/Skylicht/Components/Source/ParticleSystem/Particles/Emitters/CStraightEmitter.h

@@ -0,0 +1,57 @@
+/*
+!@
+MIT License
+
+Copyright (c) 2020 Skylicht Technology CO., LTD
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files
+(the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify,
+merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+This file is part of the "Skylicht Engine".
+https://github.com/skylicht-lab/skylicht-engine
+!#
+*/
+
+#pragma once
+
+#include "CEmitter.h"
+
+namespace Skylicht
+{
+	namespace Particle
+	{
+		class CStraightEmitter : public CEmitter
+		{
+		protected:
+			core::vector3df m_direction;
+
+		public:
+			CStraightEmitter();
+
+			virtual ~CStraightEmitter();
+
+			inline void setDirection(const core::vector3df& d)
+			{
+				m_direction = d;
+				m_direction.normalize();
+			}
+
+			inline const core::vector3df& getDirection()
+			{
+				return m_direction;
+			}
+
+			virtual void generateVelocity(CParticle& particle, float speed, CZone* zone);
+		};
+	}
+}

Samples/Particles/Source/SampleParticles.cpp

@@ -72,13 +72,16 @@ void SampleParticles::initFireParticle(Particle::CParticleComponent *particleCom
 	Particle::CGroup *group = particleComponent->createParticleGroup();
 
 	// create start point
-	Particle::CZone *zone = group->setZone(factory->createPointZone());
-	zone->setPosition(core::vector3df(0.0f, 0.0f, 0.0f));
+	// Particle::CZone *zone = group->setZone(factory->createPointZone());
+	Particle::CZone *zone = group->setZone(factory->createSphereZone(core::vector3df(0.0f, 0.0f, 0.0f), 1.0f));
 
 	// create emitter
-	Particle::CEmitter *emitter = group->addEmitter(factory->createRandomEmitter());
+	// Particle::CEmitter *emitter = group->addEmitter(factory->createRandomEmitter());
+	Particle::CEmitter *emitter = group->addEmitter(factory->createStraightEmitter(core::vector3df(0.0f, 0.0f, 1.0f)));
 	emitter->setTank(0);
-	emitter->setFlow(300.0f);
+	emitter->setFlow(500.0f);
+	emitter->setForce(0.0f, 0.0f);
+	emitter->setEmitFullZone(false);
 
 	// create renderer
 	Particle::CQuadRenderer *quadRenderer = factory->createQuadRenderer();
@@ -90,15 +93,15 @@ void SampleParticles::initFireParticle(Particle::CParticleComponent *particleCom
 	quadRenderer->getMaterial()->applyMaterial();
 
 	// create model
-	group->Gravity.set(0.0f, 0.4f, 0.0f);
+	group->Gravity.set(0.0f, 0.1f, 0.0f);
 
 	group->createModel(Particle::RotateSpeedZ)->setStart(2.0f);
 
 	group->createModel(Particle::FrameIndex)->setStart(0.0f, 3.0f);
 
-	group->createModel(Particle::ScaleX)->setStart(0.5f)->setEnd(4.0f, 6.0f);
-	group->createModel(Particle::ScaleY)->setStart(0.5f)->setEnd(4.0f, 6.0f);
-	group->createModel(Particle::ScaleZ)->setStart(0.5f)->setEnd(4.0f, 6.0f);
+	group->createModel(Particle::ScaleX)->setStart(0.1f)->setEnd(0.7f, 1.0f);
+	group->createModel(Particle::ScaleY)->setStart(0.1f)->setEnd(0.7f, 1.0f);
+	group->createModel(Particle::ScaleZ)->setStart(0.1f)->setEnd(0.7f, 1.0f);
 
 	group->createModel(Particle::ColorA)->setStart(1.0f)->setEnd(0.0f);
 	group->createModel(Particle::ColorR)->setStart(0.8f)->setEnd(1.0f);