171 lines
3.2 KiB
C++
171 lines
3.2 KiB
C++
/*=========================================================================
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pseesaw.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 __PLATFORM_PSEESAW_H__
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#include "platform\pseesaw.h"
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#endif
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#ifndef __GAME_GAME_H__
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#include "game\game.h"
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#endif
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#ifndef __VID_HEADER_
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#include "system\vid.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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void CNpcSeesawPlatform::postInit()
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{
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CNpcPlatform::postInit();
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m_angularVelocity = 0;
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m_currentAngle = 0;
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}
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void CNpcSeesawPlatform::processMovement( int _frames )
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{
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s32 forceActing = 0;
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if ( m_contact )
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{
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// find if user is to left or right of platform centre
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CPlayer *player = GameScene.getPlayer();
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DVECTOR playerPos = player->getPos();
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s32 distX = playerPos.vx - this->Pos.vx;
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if ( distX > 0 )
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{
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forceActing = 64 * _frames;
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m_angularVelocity += forceActing;
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}
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else if ( distX < 0 )
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{
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forceActing = -64 * _frames;
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m_angularVelocity += forceActing;
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}
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}
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if ( !forceActing && m_angularVelocity )
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{
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// reduce velocity until 0
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s32 m_angularResistance = -( 64 * _frames * m_angularVelocity ) / abs( m_angularVelocity );
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if ( m_angularResistance < -m_angularVelocity )
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{
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m_angularResistance = -m_angularVelocity;
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}
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else if ( m_angularResistance > m_angularVelocity )
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{
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m_angularResistance = m_angularVelocity;
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}
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m_angularVelocity += m_angularResistance;
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}
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if ( m_angularVelocity > ( 20 << 8 ) )
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{
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m_angularVelocity = 20 << 8;
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}
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else if ( m_angularVelocity < -( 20 << 8 ) )
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{
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m_angularVelocity = -( 20 << 8 );
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}
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s32 newAngle = m_currentAngle + m_angularVelocity;
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if ( newAngle > ( 340 << 8 ) )
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{
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newAngle = 340 << 8;
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m_angularVelocity = 0;
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}
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else if ( newAngle < -( 340 << 8 ) )
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{
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newAngle = -( 340 << 8 );
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m_angularVelocity = 0;
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}
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m_currentAngle = newAngle;
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setCollisionAngle( newAngle >> 8 );
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void CNpcSeesawPlatform::render()
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{
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if ( m_isActive )
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{
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CPlatformThing::render();
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// Render
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DVECTOR renderPos;
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DVECTOR offset = CLevel::getCameraPos();
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renderPos.vx = Pos.vx - offset.vx;
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renderPos.vy = Pos.vy - offset.vy;
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if ( renderPos.vx >= 0 && renderPos.vx <= VidGetScrW() )
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{
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if ( renderPos.vy >= 0 && renderPos.vy <= VidGetScrH() )
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{
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SVECTOR rotation;
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rotation.vx = 0;
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rotation.vy = 0;
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rotation.vz = getCollisionAngle();
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VECTOR scale;
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scale.vx = ONE;
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scale.vy = ONE;
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scale.vz = ONE;
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m_modelGfx->Render(renderPos,&rotation,&scale);
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#if defined (__USER_paul__) || defined (__USER_charles__)
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DVECTOR size;
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DVECTOR centre;
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int halfLength;
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int x1,y1,x2,y2;
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centre=getCollisionCentre();
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size=getCollisionSize();
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halfLength=size.vx>>1;
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x1=-halfLength*mcos(getCollisionAngle()&4095)>>12;
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y1=-halfLength*msin(getCollisionAngle()&4095)>>12;
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x2=+halfLength*mcos(getCollisionAngle()&4095)>>12;
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y2=+halfLength*msin(getCollisionAngle()&4095)>>12;
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centre.vx-=offset.vx;
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centre.vy-=offset.vy;
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x1+=centre.vx;
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y1+=centre.vy;
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x2+=centre.vx;
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y2+=centre.vy;
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DrawLine(x1,y1,x2,y2,0,255,0,0);
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#endif
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}
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}
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}
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}
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