SBSPSS/source/gui/pointer.cpp
2001-07-02 16:33:36 +00:00

176 lines
3.4 KiB
C++

/*=========================================================================
pointer.cpp
Author: PKG
Created:
Project: Spongebob
Purpose:
Copyright (c) 2001 Climax Development Ltd
===========================================================================*/
/*----------------------------------------------------------------------
Includes
-------- */
#include "gui\pointer.h"
#ifndef __GAME_GAME_H__
#include "game\game.h"
#endif
#ifndef __GFX_SPRBANK_H__
#include "gfx\sprbank.h"
#endif
#ifndef __MATHTABLE_HEADER__
#include "utils\mathtab.h"
#endif
/* Std Lib
------- */
/* Data
---- */
#ifndef __SPR_SPRITES_H__
#include <sprites.h>
#endif
/*----------------------------------------------------------------------
Tyepdefs && Defines
------------------- */
/*----------------------------------------------------------------------
Structure defintions
-------------------- */
/*----------------------------------------------------------------------
Function Prototypes
------------------- */
/*----------------------------------------------------------------------
Vars
---- */
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CPointerIcon::think(int _frames)
{
int i;
for(i=0;i<_frames;i++)
{
int delta;
// X
delta=m_pointerTarget.vx-m_pointerPos.vx;
if(delta<0)
{
delta/=3;
if(!delta)delta=-1;
}
else if(delta>0)
{
delta/=3;
if(!delta)delta=+1;
}
m_pointerPos.vx+=delta;
// Y
delta=m_pointerTarget.vy+((msin(m_pointerSin)*4)>>12)-m_pointerPos.vy;
if(delta<0)
{
delta/=3;
if(!delta)delta=-1;
}
else if(delta>0)
{
delta/=3;
if(!delta)delta=+1;
}
m_pointerPos.vy+=delta;
// Reached target?
if(!m_pointerArrivedAtTarget&&
m_pointerPos.vx==m_pointerTarget.vx&&m_pointerPos.vy==m_pointerTarget.vy)
{
m_pointerArrivedAtTarget=true;
}
// Make it bob a bit..
if(m_pointerArrivedAtTarget)
{
m_pointerSin=(m_pointerSin+70)&4095;
}
else
{
m_pointerSin=0;
}
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CPointerIcon::render()
{
SpriteBank *sb;
sFrameHdr *fh;
POLY_FT4 *ft4;
int x,y;
sb=CGameScene::getSpriteBank();
fh=sb->getFrameHeader(FRM__MAPPOINTER);
x=m_pointerPos.vx-(fh->W/2);
y=m_pointerPos.vy-(fh->H/2);
ft4=sb->printFT4(fh,x,y,0,0,0);
if(!m_pointerArrivedAtTarget)
{
setSemiTrans(ft4,true);
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CPointerIcon::setTarget(DVECTOR _target)
{
if(m_pointerTarget.vx!=_target.vx||m_pointerTarget.vy!=_target.vy)
{
m_pointerTarget=_target;
m_pointerArrivedAtTarget=false;
}
}
/*----------------------------------------------------------------------
Function:
Purpose:
Params:
Returns:
---------------------------------------------------------------------- */
void CPointerIcon::snapToTarget(DVECTOR _target)
{
m_pointerPos=_target;
m_pointerTarget=_target;
m_pointerArrivedAtTarget=true;
}
/*===========================================================================
end */