游戏引擎

开发平台：
Visual C++

Sprite.cpp：源码内容
							// Sprite.cpp: implementation of the CSprite class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "Sprite.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CSprite::CSprite()
{
	m_RunSpeed=0.1f;
	m_bHasWeapon=false;
	m_startFrame=0;
	m_endFrame=1;
	m_percent=0;
	m_Health=1.5f;
}
CSprite::~CSprite()
{
}
bool CSprite::InitSprite(int id,VERTEX startPos,float rotY,int totalFrames,
						 float height,BOUNDARY_3D boundary,bool bControlled)
{
	m_nID=id;
	m_nFrames=totalFrames;
	m_height=height;
	m_bControlled =bControlled;
	m_Boundary=boundary;
/*
	if(!m_cAmmoManger.InitAmmoManager())
	{
		MessageBox(0, "cMD2 error", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}*/
	m_Camera.UpdateCamera(startPos,0,rotY,0);
	m_nState=1-rand()%2;
	SetSpriteState(m_nState);
	return true;
}
void CSprite::ResetSpriteState(VERTEX resetPos,float rotY,int state)
{
	m_nState=state;
	m_Camera.UpdateCamera(resetPos,0,rotY,0);
}
void CSprite::DrawSprite()
{
}
void CSprite::UpdateSprite()
{
	if(m_nState==0)m_percent+=0.125f;
	else m_percent+=0.25f;
	if(m_percent>1)
	{
		m_percent=0;
		m_startFrame++;
		m_endFrame++;	
		if(m_startFrame>m_stateEnd)
		{
	    	m_startFrame = m_stateStart;
		}
    	if(m_endFrame>m_stateEnd)
		{
	    	m_endFrame	= m_stateStart;
		}    
	}
	///////////////////////////////
	if(m_nState==RUN && m_Camera.m_CamPos.xpos<2100 && m_Camera.m_CamPos.zpos<3000 )
	{
	    m_Camera.m_CamPos.xpos+=m_Camera.m_CamDirection.nx*0.4f;
	    m_Camera.m_CamPos.zpos+=m_Camera.m_CamDirection.nz*0.4f;
	    m_Camera.m_CamPos.ypos=m_cHmap.GetHeight(&m_Camera.m_CamPos)+m_height*0.5f;
	}
    CheckSunVisible();
}
/////////////////////////////////////////
void CSprite::SetSpriteState(int state)
{
	switch(state)
		{
		case IDLE1:
			m_stateStart	 = IDLE1_START;
			m_stateEnd	 = IDLE1_END;
            CheckState();
			break;
		case RUN:
			m_stateStart	 = RUN_START;
			m_stateEnd	 = RUN_END;
            CheckState();
			break;
		case SHOT_STAND:
			m_stateStart	 = SHOT_STAND_START;
			m_stateEnd	 = SHOT_STAND_END;
            CheckState();		
			break;
		case SHOT_SHOULDER:
			m_stateStart	 = SHOT_SHOULDER_START;
			m_stateEnd	 = SHOT_SHOULDER_END;
            CheckState();		
			break;
		case JUMP:
			m_stateStart	 = JUMP_START;
			m_stateEnd	 = JUMP_END;
            CheckState();	
			break;
		case IDLE2:
			m_stateStart	 = IDLE2_START;
			m_stateEnd	 = IDLE2_END;
            CheckState();
			break;
		case SHOT_FALLDOWN:
			m_stateStart	 = SHOT_FALLDOWN_START;
			m_stateEnd	 = SHOT_FALLDOWN_END;
            CheckState();
			break;
		case IDLE3:
			m_stateStart	 = IDLE3_START;
			m_stateEnd	 = IDLE3_END;
            CheckState();
			break;
		case IDLE4:
			m_stateStart	 = IDLE4_START;
			m_stateEnd	 = IDLE4_END;
            CheckState();
			break;
		case CROUCH:
			m_stateStart	 = CROUCH_START;
			m_stateEnd	 = CROUCH_END;
            CheckState();
			break;
		case CROUCH_CRAWL:
			m_stateStart	 = CROUCH_CRAWL_START;
			m_stateEnd	 =     CROUCH_CRAWL_END;
            CheckState();
			break;
		case CROUCH_IDLE:
			m_stateStart	 = CROUCH_IDLE_START;
			m_stateEnd	 = CROUCH_IDLE_END;
            CheckState();
			break;
		case CROUCH_DEATH:
			m_stateStart	 = CROUCH_DEATH_START;
			m_stateEnd	 = CROUCH_DEATH_END;
            CheckState();
			break;
		case DEATH_FALLBACK:
			m_stateStart	 = DEATH_FALLBACK_START;
			m_stateEnd	 = DEATH_FALLBACK_END;
            CheckState();
			break;
		case DEATH_FALLFORWARD:
			m_stateStart	 = DEATH_FALLFORWARD_START;
			m_stateEnd	 = DEATH_FALLFORWARD_END;
            CheckState();
			break;
		case DEATH_FALLBACKSLOW:
			m_stateStart	 = DEATH_FALLBACKSLOW_START;
			m_stateEnd	 = DEATH_FALLBACKSLOW_END;
            CheckState();
			break;
		}	
}
void CSprite::CheckState()
{
			m_startFrame    = m_stateStart+rand()%5;
			m_endFrame      = m_startFrame+1 ;
			if(m_stateEnd>(m_nFrames-1))
			{
				m_stateStart=IDLE1_START;
				m_stateEnd  =IDLE1_END;
                m_startFrame=0;
				m_endFrame  =1;
			}
}
void CSprite::CheckSunVisible()
{
	if(!m_cHmap.m_bSunVisible)return;
	BOUNDARY_3D boundary;
	VERTEX      position=m_Camera.m_CamPos;
	boundary.minx = m_Boundary.minx+position.xpos;
	boundary.maxx = m_Boundary.maxx+position.xpos;
	boundary.miny = m_Boundary.miny+position.ypos + m_height*0.5f;
	boundary.maxy = m_Boundary.maxy+position.ypos + m_height*0.5f;
	boundary.minz = m_Boundary.minz+position.zpos;
	boundary.maxz = m_Boundary.maxz+position.zpos;
    if(m_cMath.IsLineSegmentCutBy3DBoundary(*m_cHmap.m_pViewPos ,
	    	                                *m_cHmap.m_pSunPos,
										    boundary))
        m_cHmap.m_bSunVisible=false;
}

						