SBSPSS/source/enemy/nshrkman.cpp

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/*=========================================================================
nshrkman.cpp
Author: CRB
Created:
Project: Spongebob
Purpose:
Copyright (c) 2000 Climax Development Ltd
===========================================================================*/
#ifndef __ENEMY_NPC_H__
#include "enemy\npc.h"
#endif
#ifndef __GAME_GAME_H__
#include "game\game.h"
#endif
#ifndef __PLAYER_PLAYER_H__
#include "player\player.h"
#endif
void CNpc::processCloseSharkManAttack( int _frames )
{
s32 moveX, moveY;
s16 decDir, incDir, moveDist;
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s16 headingToPlayer = ratan2( playerYDist, playerXDist );
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decDir = m_heading - headingToPlayer;
if ( decDir < 0 )
{
decDir += ONE;
}
incDir = headingToPlayer - m_heading;
if ( incDir < 0 )
{
incDir += ONE;
}
if ( decDir < incDir )
{
moveDist = -decDir;
}
else
{
moveDist = incDir;
}
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s32 xDistWaypoint, yDistWaypoint;
m_npcPath.getDistToNextWaypoint( Pos, &xDistWaypoint, &yDistWaypoint );
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if ( abs( moveDist ) < 1024 && abs( xDistWaypoint ) >= abs( playerXDist ) )
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{
// continue charge
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if ( playerXDist < 0 )
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{
m_heading = 2048;
}
else
{
m_heading = 0;
}
s32 preShiftX = _frames * m_velocity * rcos( m_heading );
s32 preShiftY = _frames * m_velocity * rsin( m_heading );
moveX = preShiftX >> 12;
if ( !moveX && preShiftX )
{
moveX = preShiftX / abs( preShiftX );
}
moveY = preShiftY >> 12;
if ( !moveY && preShiftY )
{
moveY = preShiftY / abs( preShiftY );
}
Pos.vx += moveX;
Pos.vy += moveY;
}
else
{
m_controlFunc = NPC_CONTROL_MOVEMENT;
}
}