aiMobState_LavaJumper.cpp

/*

Jump'n'Run Engine
http://www.atanaslaskov.com/jnr/

BSD LICENSE
Copyright (c) 2007-2013, Atanas Laskov
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ATANAS LASKOV BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#include "stdafx.h"
#include "ai.h"

aiMobState_LavaJumper::aiMobState_LavaJumper(void)
{
}

aiMobState_LavaJumper::~aiMobState_LavaJumper(void)
{
}

void aiMobState_LavaJumper::load(laFileParser *fp)
{
    aiMobState::load(fp);

    //Load global params
    //
    double dWait;
    fp->readDouble(&dWait);
    _ttWait.parameters(dWait,dWait);
    _ttWait.enable();
    _ttWait.force();

    fp->readBool(&_bAlwaysDoSameJump);
    fp->readBool(&_bLavaJumper);
    fp->readBool(&_bFollowCurve);

    _tJumpAvg = 2;
    _nJumpSamples = 1;

    _ttTurn.parameters(_tJumpAvg, _tJumpAvg);
    _ttTurn.enable();   // NOTE: if this M_FALSE, the initial _tJumpAvg could be mangled up
    _ttTurn.force();
}

void aiMobState_LavaJumper::perceive_active( std::string strID_Old )
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();

    pMonster->agressive(M_TRUE);
    pMonster->enableBattleGUI(M_FALSE);

    pMonster->getPivot()-> bSimulateGravitation = M_TRUE;
    pMonster->move(0);

    _ptOriginalPos = pMonster->getPosition();

    // Turning left and righrt interferes with the
    // rot along Y, that's necessary for following the jump curve
    // so turn it off
    //
    // NOTE: this alos interfires with sommersaults sometiems,
    // principaly, rot shoud be with vec+ang, or qu,
    // an easy fix: buit in rot into the 3d model anim
    //
    if( _bFollowCurve )
    {
        pMonster->setExplicitFacing(1);
    }
}

void aiMobState_LavaJumper::perceive_inactive( std::string strID_New )
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();
}

/*void aiMobState_LavaJumper::perceive_InTerritory(unsigned state)
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();
}

void aiMobState_LavaJumper::perceive_InRange(unsigned state)
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();
}

void aiMobState_LavaJumper::perceive_Touched(unsigned state)
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();
}

void aiMobState_LavaJumper::perceive_UnderAttack(unsigned state)
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();
}*/

void aiMobState_LavaJumper::perceive(unsigned state, M_BOOL global, unsigned id, aiPerceptData data)
{
    laMonster* pMonster = (laMonster*) self();
    laPlayer* pPlayer   = (laPlayer*) player();

    if(_bFollowCurve) _follow_curve();
    if(_bLavaJumper) _update_trail();

    int direction = pMonster->getMoveDirection();
    pMonster->move( this->_update_direction( direction ) );

    _ttWait.animate( *(::laSystemIntegrator::getEnvironment()->getTimer()) );
    _ttTurn.animate( *(::laSystemIntegrator::getEnvironment()->getTimer()) );

    aiMobState::perceive(state, global, id, data);
}

void aiMobState_LavaJumper::_follow_curve()
{
    laMonster* pMonster = (laMonster*) self();
    laPivot *pMobPivot = pMonster->getPivot();
    double ang = 0;

    if( pMobPivot->bOnGround )
    {
        if( _ttTurn.isEnabled())
        {
            // Estimate jump duration
            //
            _tJump.frameEnd();
            _tJumpAvg = ( _tJumpAvg * _nJumpSamples + _tJump.delta() ) / ( (double)_nJumpSamples + 1.0 );
            _nJumpSamples++;

            //_ttTurn.setParameters(_tJump.delta(), _tJump.delta());
            _ttTurn.parameters(_tJumpAvg, _tJumpAvg);

            // Make sure we wand underground
            _ttTurn.force();
            _ttTurn.enable(M_FALSE);
        }
    }
    else if ( !_ttTurn.isEnabled() )
    {
        _ttTurn.enable();
        _ttTurn.reset();

        _tJump.frameStart();
    }


    ang = (1 - _ttTurn.reminder()) * 180;
    if( _ptTargetPos.x() <= pMobPivot->x() ) ang *= -1;

    if(_ttTurn.isEnabled())
        pMobPivot->ptGeometryOffset.y( -0.5*(1 - _ttTurn.reminder())*M_UNIT );      // rotate around center
    else
        pMobPivot->ptGeometryOffset.y(0);                   // hide underground

    pMobPivot->angleZ = ang;
}

int aiMobState_LavaJumper::_update_direction(int direction)
{
    laMonster* pMonster = (laMonster*) self();
    laPivot *pMobPivot = pMonster->getPivot();

    // Commence a new jump when on the ground
    //
    if( pMobPivot->bOnGround )
    {
        if( _ttWait.isEnabled() )
        {
            if( _ttWait.isElapsed() )
            {
                _ptTargetPos = _find_target();
                pMonster->jump();
            }
        }
        else
        {
            _ttWait.enable();
            _ttWait.reset();
        }

        //return 0;
    }
    // Naivgate in the air
    //
    else
    {
        _ttWait.enable(M_FALSE);

        if( pMobPivot->x()> _ptTargetPos.x() + M_UNIT*0.1 ) return -1;

        if( pMobPivot->x()< _ptTargetPos.x() - M_UNIT*0.1 ) return +1;
    }

    return 0;
}

laPoint3 aiMobState_LavaJumper::_find_target()
{
    laMonster* pMonster = (laMonster*) self();
    double dDL = pMonster->getLeftRange();// * M_UNIT;
    double dDR = pMonster->getRightRange();// * M_UNIT;

    double x = 0;

    if( rand()%2 )
    {
        x -=  (dDL * (rand()%100) / 100.0 );

        //(_bLavaJumper && !bInLava) || (!_bLavaJumper && bInLava)
        if(_bLavaJumper) while( !_trap_below(x) && ( x < dDR) )
            x += M_UNIT;
    }
    else
    {
        x += (dDR * (rand()%100) / 100.0);

        if(_bLavaJumper) while( !_trap_below(x) && ( x > -1*dDL ) )
            x -= M_UNIT;


    }
    if( ( x > dDR) || (x < -1*dDL) )
    {
        x = 0;  // no lava found, default to original pos
    }
    else if(_bLavaJumper)
    {
        // lava jumper placed where there's no lava
        // => try to fix
        //
        if( !_trap_below(0) )
        {
            _ptOriginalPos[0] += x;
        }
    }

    return laPoint3(_ptOriginalPos.x() + x, _ptOriginalPos.y());
}

void aiMobState_LavaJumper::_update_trail()
{
    laMonster* pMonster = (laMonster*) self();
    laPivot *pMobPivot = pMonster->getPivot();
    rpgTrap* ptrap;

    if( _trap_below(_ptTargetPos.x() - _ptOriginalPos.x(), &ptrap) )
    {
        pMonster->_fxTrail.copyStyle( ptrap->pTSE->getFx("fx") );

        /*pMonster->_fxTrail._cbParam.p_rgb = ptrap->pTSE->getFx("fx")->_cbParam.p_rgb;
        pMonster->_fxTrail.texSprite =  ptrap->pTSE->getFx("fx")->texSprite;*/
    }

    pMonster->_fxTrail.enable();
    //pMonster->_fxTrail.position(pMobPivot->x, pMobPivot->y);
}

M_BOOL aiMobState_LavaJumper::_trap_below(double dx, rpgTrap** ppt)
{
    laMonster* pMonster = (laMonster*) self();
    laPivot *pMobPivot = pMonster->getPivot();

    laPoint3 vTentacle(0, +4*M_UNIT, 0);    //should point downwards

    laPivot vPivot = (*pMobPivot);
    vPivot[0] = _ptOriginalPos.x() + dx;
    vPivot[1] = vPivot.y() - 2.0 * M_UNIT;

    M_BOOL bTrap1 = M_FALSE;
    vPivot[0] -= vPivot.size.x() * 0.5;
    vPivot.projectVector(vTentacle, &bTrap1, ppt);

    M_BOOL bTrap2 = M_FALSE;
    vPivot[0] += vPivot.size.x() * 1.0;
    vPivot.projectVector(vTentacle, &bTrap2, ppt);

    return bTrap1 && bTrap2;
}