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Torque/SDK/lib/maxsdk40/particle.h

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+/**********************************************************************
+ *<
+	FILE: particle.h
+
+	DESCRIPTION: Particle system object
+
+	CREATED BY: Rolf Berteig
+
+	HISTORY: 10-18-95
+
+ *> Copyright (c) 1994, All Rights Reserved.
+ **********************************************************************/
+
+#ifndef __PARTICLE__
+#define __PARTICLE__
+
+#include "meshlib.h"
+#include "export.h"
+
+class ParticleSys;
+
+typedef struct{
+ Point3 center;
+ float radius,oradius,rsquare,tover4;
+} SphereData;
+
+// Custom particle drawing callback
+class CustomParticleDisplay {
+	public:
+		virtual BOOL DrawParticle(GraphicsWindow *gw,ParticleSys &parts,int i)=0;
+	};
+
+class ParticleSys {
+	private:
+		CustomParticleDisplay *draw;
+
+		void DrawGW(GraphicsWindow *gw,DWORD flags,MarkerType type);
+
+	public:
+		Tab<Point3>	points;		// The particles themselves
+		Tab<Point3> vels;		// Velocities of each particle (optional)
+		Tab<TimeValue> ages;	// Age of each particle (optional)
+		Tab<float> radius;
+		Tab<float> tension;
+		float size;				// World space radius of a particle
+
+
+		// Draws the particle system into the GW
+		DllExport void Render(GraphicsWindow *gw,MarkerType type=POINT_MRKR);
+		
+		// Hit tests the particle system. Returns TRUE if a particle is hit.
+		DllExport BOOL HitTest(GraphicsWindow *gw, HitRegion *hr, 
+			int abortOnHit=FALSE,MarkerType type=POINT_MRKR);
+
+		// Gets bounding box
+		DllExport Box3 BoundBox(Matrix3 *tm=NULL);
+
+		// Sets all counts to 0
+		DllExport void FreeAll();
+
+		// Sets the size. Flags indicate if optional params should be allocated
+		DllExport void SetCount(int c,DWORD flags);
+
+		int Count() {return points.Count();}
+		Point3& operator[](int i) {return points[i];}
+
+		// Is particle i alive?
+		BOOL Alive(int i) {return ages[i]>=0;}
+
+		// Sets custom draw callback
+		void SetCustomDraw(CustomParticleDisplay *d) {draw=d;}
+	};
+
+// Flags for SetCount()
+#define PARTICLE_VELS	(1<<0)
+#define PARTICLE_AGES	(1<<1)
+#define PARTICLE_RADIUS	(1<<2)
+#define PARTICLE_TENSION (1<<3)
+
+class MetaParticle {
+	public:
+		DllExport int CreateMetas(ParticleSys parts,Mesh *mesh,float threshold,float res,float strength,int many=1);
+		DllExport int CreatePodMetas(SphereData *data,int num,Mesh *mesh,float threshold,float res,int many=1);
+};
+#endif  // __PARTICLE__