110 lines
2.2 KiB
C++
110 lines
2.2 KiB
C++
/*=========================================================================
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hpendulm.cpp
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Author: CRB
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Created:
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Project: Spongebob
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Purpose:
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Copyright (c) 2001 Climax Development Ltd
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===========================================================================*/
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#ifndef __HAZARD_HPENDULM_H__
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#include "hazard\hpendulm.h"
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#endif
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#ifndef __UTILS_HEADER__
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#include "utils\utils.h"
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void CNpcPendulumHazard::init()
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{
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CNpcHazard::init();
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m_extendDir = EXTEND_LEFT;
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m_extension = 0;
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m_heading = 1024;
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m_length = 200;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void CNpcPendulumHazard::setWaypoints( sThingHazard *ThisHazard )
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{
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int pointNum;
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u16 *PntList=(u16*)MakePtr(ThisHazard,sizeof(sThingHazard));
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u16 newXPos, newYPos;
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newXPos = (u16) *PntList;
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PntList++;
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newYPos = (u16) *PntList;
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PntList++;
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DVECTOR startPos;
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startPos.vx = newXPos << 4;
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startPos.vy = newYPos << 4;
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if ( ThisHazard->PointCount > 1 )
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{
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newXPos = (u16) *PntList;
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PntList++;
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newYPos = (u16) *PntList;
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PntList++;
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DVECTOR pivotPos;
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pivotPos.vx = newXPos << 4;
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pivotPos.vy = newYPos << 4;
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s32 xDist = startPos.vx - pivotPos.vx;
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s32 yDist = startPos.vy - pivotPos.vy;
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m_maxExtension = 1024 - ratan2( abs( yDist ), abs( xDist ) );
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m_length = isqrt2( ( xDist * xDist ) + ( yDist * yDist ) );
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Pos = pivotPos;
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}
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else
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{
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Pos = startPos;
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}
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m_base = Pos;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void CNpcPendulumHazard::processMovement( int _frames )
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{
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if ( m_extendDir == EXTEND_LEFT )
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{
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if ( m_extension > m_maxExtension )
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{
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m_extendDir = EXTEND_RIGHT;
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}
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else
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{
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m_extension += _frames << 3;
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}
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}
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else
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{
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if ( m_extension < -m_maxExtension )
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{
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m_extendDir = EXTEND_LEFT;
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}
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else
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{
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m_extension -= _frames << 3;
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}
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}
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Pos.vx = m_base.vx + ( ( m_length * rcos( m_heading + m_extension ) ) >> 12 );
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Pos.vy = m_base.vy + ( ( m_length * rsin( m_heading + m_extension ) ) >> 12 );
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} |