/*=========================================================================

	hspikes.cpp

	Author:		CRB
	Created: 
	Project:	Spongebob
	Purpose: 

	Copyright (c) 2001 Climax Development Ltd

===========================================================================*/

#ifndef __HAZARD_HSPIKES_H__
#include "hazard\hspikes.h"
#endif

#ifndef __LAYER_COLLISION_H__
#include "level\layercollision.h"
#endif

#ifndef __GAME_GAME_H__
#include	"game\game.h"
#endif


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void CNpcSpikesHazard::init()
{
	CNpcHazard::init();

	m_state = SPIKES_RISING;

	m_respawnRate = 8;
	m_timerActive = true;
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void CNpcSpikesHazard::processMovement( int _frames )
{
	if ( m_timer <= 0 )
	{
		s32 minY, maxY;
		m_npcPath.getPathYExtents( &minY, &maxY );

		switch ( m_state )
		{
			case SPIKES_DROPPING:
			{
				if ( maxY - Pos.vy == 0 )
				{
					m_state = SPIKES_RISING;

					m_timer = ( m_respawnRate * GameState::getOneSecondInFrames() ) >> 3;
				}
				else
				{
					Pos.vy += 8 * _frames;

					if ( Pos.vy > maxY )
					{
						Pos.vy = maxY;
					}
				}


				break;
			}

			case SPIKES_RISING:
			{
				if ( minY - Pos.vy == 0 )
				{
					m_state = SPIKES_DROPPING;

					m_timer = ( m_respawnRate * GameState::getOneSecondInFrames() ) >> 3;
				}
				else
				{
					Pos.vy -= 8 * _frames;

					if ( Pos.vy < minY )
					{
						Pos.vy = minY;
					}
				}

				break;
			}
		}
	}
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void CNpcSpikesHazard::processTimer( int _frames )
{
	if ( m_timer > 0 )
	{
		m_timer -= _frames;
	}
}