nplm.c

/*
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <element.h>

int update_NPLM(UPDATE_FUNC_ARGS)
{


    int r, rx, ry;
    float dx, dy;
    char nplm;
    int absorbChanceDenom;
    if (parts[i].tmp>100) parts[i].tmp = 100;
    if (parts[i].tmp<0) parts[i].tmp = 0;
    absorbChanceDenom = parts[i].tmp*10 + 500;
    for (rx=-2; rx<3; rx++)
        for (ry=-2; ry<3; ry++)
            if (x+rx>=0 && y+ry>0 && x+rx<XRES && y+ry<YRES && (rx || ry))
            {
                r = pmap[y+ry][x+rx];
                if (!r)
                    continue;




                nplm = 0;

                //Stickness
                if ((dx*dx + dy*dy)>1.5 && (nplm || !ptypes[r&0xFF].falldown || (fabs(rx)<2 && fabs(ry)<2)))
                {
                    float per, nd;
                    nd = dx*dx + dy*dy - 0.5;

                    per = 5*(1 - parts[i].tmp/100)*(nd/(dx*dx + dy*dy + nd) - 0.5);
                    if (ptypes[r&0xFF].state==ST_LIQUID)
                        per *= 0.1;

                    dx *= per; dy *= per;
                    parts[i].vx += dx;
                    parts[i].vy += dy;

                    if (ptypes[r&0xFF].properties&TYPE_PART || (r&0xFF)==PT_GOO)
                    {
                        parts[r>>8].vx -= dx;
                        parts[r>>8].vy -= dy;
                    }
                }
            }


            if ((r&0xFF)==PT_SPRK)
    {
        part_change_type(i,x,y,PT_FIRE);
    }
    //create_part(-1, x+rand()%3-1, y+rand()%3-1, PT_FIRE);

return 0;
}