source: orxonox.OLD/orxonox/branches/chris/src/track.cc @ 2102

/* 
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Christian Meyer
   co-programmer: ...
*/

#include "track.h"

using namespace std;

Track::Track ()
{
        ID = 0;
        offset = NULL;
        end = NULL;
        nextID = 0;
}

Track::Track (Uint32 number, Uint32 next, Vector* start, Vector* finish)
{
        ID = number;
        offset = start;
        end = finish;
        nextID = next;
}

Track::~Track ()
{
}

void Track::map_camera (Location* lookat, Placement* camplc)
{
        Line trace(*offset, *end - *offset);
        float l = trace.len ();
        
        camplc->r = trace.r + (trace.a * ((lookat->dist-10.0) / l)) + Vector(0,0,5.0);
        camplc->w = Rotation( (trace.r + (trace.a * ((lookat->dist) / l))) - camplc->r);
}

bool Track::map_coords (Location* loc, Placement* plc)
{
        Line trace(*offset, *end - *offset);
        float l = trace.len ();
        
        if( loc->dist > l)
        {
                loc->dist -= l;
                loc->part = nextID;
                return true;
        }
        
        Rotation dir(trace.a);
        
        plc->r = trace.r + (trace.a * ((loc->dist) / l)) + rotate_vector( loc->pos, dir);
        plc->w = dir * loc->rot;
        
        return false;
}

void Track::post_enter (WorldEntity* entity)
{
}

void Track::post_leave (WorldEntity* entity)
{
}

void Track::tick (float deltaT)
{
}