//========= Copyright © 1996-2001, Valve LLC, All rights reserved. ============ 
 // 
 // Purpose: 
 // 
 // $NoKeywords: $ 
 //============================================================================= 

 #ifndef ENERGYWAVEEFFECT_H 
 #define ENERGYWAVEEFFECT_H 
 #ifdef _WIN32 
 #pragma once 
 #endif 

 #include "UtlVector.h" 
 #include "SheetSimulator.h" 

 // -------------------------------------- 
 // Energy wave defs 
 // -------------------------------------- 
 enum 
 { 
 EWAVE_NUM_HORIZONTAL_POINTS = 10, 
 EWAVE_NUM_VERTICAL_POINTS = 10, 
 EWAVE_NUM_CONTROL_POINTS = EWAVE_NUM_HORIZONTAL_POINTS * EWAVE_NUM_VERTICAL_POINTS, 
 EWAVE_INITIAL_THETA = 135, 
 EWAVE_INITIAL_PHI = 135, 
 }; 

 //----------------------------------------------------------------------------- 
 // Purpose: Energy Wave Effect 
 //----------------------------------------------------------------------------- 

 class CEnergyWaveEffect : public CSheetSimulator 
 { 
 public: 
 CEnergyWaveEffect( TraceLineFunc_t traceline, TraceHullFunc_t traceHull ); 

 void Precache(); 
 void Spawn(); 

 // Computes the opacity.... 
 float ComputeOpacity( const Vector& pt, const Vector& center ) const; 

 void DetectCollisions(); 

 private: 
 CEnergyWaveEffect( const CEnergyWaveEffect & ); // not defined, not accessible 

 // Simulation set up 
 void ComputeRestPositions(); 
 void MakeSpring( int p1, int p2 ); 
 void ComputeSprings(); 

 float m_RestDistance; 
 float m_EWaveTheta; 
 float m_EWavePhi; 
 }; 

 #endif // ENERGYWAVEEFFECT_H