From 9dd9574270473021cb92c285fe1d39354d31b106 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 15 May 2016 23:53:05 +0800
Subject: Initial stubs for the particle system. Use layouts in the effects
 window.

---
 visualization/extrasmeltutils.cpp | 33 ++++++++++++++++++++++++
 visualization/extrasmeltutils.hpp | 54 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+)

(limited to 'visualization')

diff --git a/visualization/extrasmeltutils.cpp b/visualization/extrasmeltutils.cpp
index d77cc4b..160f7d6 100644
--- a/visualization/extrasmeltutils.cpp
+++ b/visualization/extrasmeltutils.cpp
@@ -1,6 +1,7 @@
 #include <cstdarg>
 #include "extrasmeltutils.hpp"
 SMELT* smEntity3DBuffer::sm=NULL;
+SMELT* smParticle::sm=NULL;
 smVertex makeVertex(float x,float y,float z,DWORD color,float tx,float ty)
 {smVertex v;v.x=x;v.y=y;v.z=z;v.col=color;v.tx=tx;v.ty=ty;return v;}
 void smEntity3D::addVerices(int n,...)
@@ -59,3 +60,35 @@ void smEntity3DBuffer::drawBatch()
 	sm->smDrawCustomIndexedVertices(&vertices[0],&indices[0],vertices.size(),indices.size(),BLEND_ALPHABLEND,0);
 	vertices.clear();indices.clear();
 }
+smParticle::smParticle(){sm=smGetInterface(SMELT_APILEVEL);}
+smParticle::~smParticle(){sm->smRelease();}
+void smParticle::render()
+{sm->smRenderQuad(&q);}
+void smParticle::update()
+{
+	clifespan+=sm->smGetDelta();
+	vel=vel+accel;pos=pos+vel;rotv=rotv+rota;rot=rot+rotv;
+	size=clifespan/lifespan*(finalsize-initsize)+initsize;
+	color=ARGB(
+		(DWORD)(clifespan/lifespan*(GETA(finalcolor)-GETA(initcolor)+GETA(initcolor))),
+		(DWORD)(clifespan/lifespan*(GETR(finalcolor)-GETR(initcolor)+GETR(initcolor))),
+		(DWORD)(clifespan/lifespan*(GETG(finalcolor)-GETG(initcolor)+GETG(initcolor))),
+		(DWORD)(clifespan/lifespan*(GETB(finalcolor)-GETB(initcolor)+GETB(initcolor))));
+	//set up the quad
+}
+smParticleSystem::smParticleSystem(){particles.clear();posGenerator=NULL;}
+smParticleSystem::~smParticleSystem()
+{for(int i=0;i<particles.size();++i)delete particles[i];particles.clear();}
+void smParticleSystem::setParticleSystemInfo(smParticleSystemInfo _psinfo)
+{psinfo=_psinfo;}
+void smParticleSystem::setPos(smvec3d _pos){pos=_pos;}
+void smParticleSystem::setPSEmissionPosGen(smPSEmissionPositionGenerator *_gen)
+{posGenerator=_gen;}
+void smParticleSystem::startPS()
+{}
+void smParticleSystem::stopPS()
+{}
+void smParticleSystem::updatePS()
+{}
+void smParticleSystem::renderPS()
+{}
diff --git a/visualization/extrasmeltutils.hpp b/visualization/extrasmeltutils.hpp
index 8a4a1bc..092fbfb 100644
--- a/visualization/extrasmeltutils.hpp
+++ b/visualization/extrasmeltutils.hpp
@@ -29,5 +29,59 @@ class smEntity3DBuffer
 		void drawBatch();
 
 };
+class smPSEmissionPositionGenerator
+{
+	public:
+		virtual smvec3d genPos();
+};
+class smParticleSystemInfo
+{
+	public:
+		smvec3d vel,velvar,acc,accvar;
+		smvec3d rotv,rotvvar,rota,rotavar;
+		double lifespan,lifespanvar;
+		int maxcount,emissioncount,ecvar;
+		double emissiondelay,edvar;
+		double initsize,initsizevar;
+		double finalsize,finalsizevar;
+		DWORD initcolor,initcolorvar;
+		DWORD finalcolor,finalcolorvar;
+		SMTEX texture;int blend;
+};
+class smParticle
+{
+	friend class smParticleSystem;
+	private:
+		static SMELT* sm;
+		smvec3d pos,rot;
+		smvec3d vel,accel,rotv,rota;
+		double lifespan,clifespan;
+		double initsize,finalsize,size;
+		DWORD color,initcolor,finalcolor;
+		smQuad q;
+	public:
+		smParticle();
+		~smParticle();
+		void render();
+		void update();
+};
+class smParticleSystem
+{
+	private:
+		std::vector<smParticle*> particles;
+		smParticleSystemInfo psinfo;
+		smvec3d pos;
+		smPSEmissionPositionGenerator* posGenerator;
+	public:
+		smParticleSystem();
+		~smParticleSystem();
+		void setParticleSystemInfo(smParticleSystemInfo _psinfo);
+		void setPos(smvec3d _pos);
+		void setPSEmissionPosGen(smPSEmissionPositionGenerator* _gen);
+		void startPS();
+		void stopPS();
+		void updatePS();
+		void renderPS();
+};
 extern smVertex makeVertex(float x,float y,float z,DWORD color,float tx,float ty);
 #endif // EXTRASMELTUTILS_H
-- 
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