SBSPSS/source/enemy/ngeneric.cpp
Charles e0d7168d5c
2001-02-06 19:29:35 +00:00

101 lines
1.7 KiB
C++

/*=========================================================================
ngeneric.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::processGenericGotoTarget( int _frames, s32 xDist, s32 yDist, s32 speed )
{
s16 decDir, incDir, moveDist;
s32 moveX, moveY;
s16 headingToTarget = ratan2( yDist, xDist );
s16 maxTurnRate = m_data[m_type].turnSpeed;
decDir = m_heading - headingToTarget;
if ( decDir < 0 )
{
decDir += ONE;
}
incDir = headingToTarget - m_heading;
if ( incDir < 0 )
{
incDir += ONE;
}
if ( decDir < incDir )
{
moveDist = -decDir;
}
else
{
moveDist = incDir;
}
if ( moveDist < -maxTurnRate )
{
moveDist = -maxTurnRate;
}
else if ( moveDist > maxTurnRate )
{
moveDist = maxTurnRate;
}
m_heading += moveDist;
m_heading = m_heading % ONE;
s32 preShiftX = _frames * speed * rcos( m_heading );
s32 preShiftY = _frames * speed * 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;
}
void CNpc::processGenericGetUserDist( int _frames, s32 *distX, s32 *distY )
{
s32 moveX = 0, moveY = 0;
s16 moveDist = 0;
s32 moveVel = 0;
CPlayer *player = GameScene.getPlayer();
DVECTOR playerPos = player->getPos();
*distX = playerPos.vx - this->Pos.vx;
*distY = playerPos.vy - this->Pos.vy;
}