pcnv.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_PCNV(UPDATE_FUNC_ARGS) {
    int r, rx, ry;
    if (parts[i].life>0 && parts[i].life!=10)
        parts[i].life--;
    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;
                if ((r&0xFF)==PT_SPRK && parts[r>>8].life>0 && parts[r>>8].life<4)
                {
                    if (parts[r>>8].ctype==PT_PSCN)
                        parts[i].life = 10;
                    else if (parts[r>>8].ctype==PT_NSCN)
                        parts[i].life = 9;
                }
                if ((r&0xFF)==PT_PCNV)
                {
                    if (parts[i].life==10&&parts[r>>8].life<10&&parts[r>>8].life>0)
                        parts[i].life = 9;
                    else if (parts[i].life==0&&parts[r>>8].life==10)
                        parts[i].life = 10;
                }
            }

    if(parts[i].life == 10) {
        if(parts[i].ctype>0 && parts[i].ctype<PT_NUM && parts[i].ctype!=PT_CONV) {
            for (rx=-1; rx<2; rx++)
                for (ry=-1; ry<2; ry++)
                    if (x+rx>=0 && y+ry>=0 && x+rx<XRES && y+ry<YRES)
                    {
                        r = photons[y+ry][x+rx];
                        if (!r)
                            r = pmap[y+ry][x+rx];
                        if (!r)
                            continue;
                        if((r&0xFF)!=PT_PCNV && (r&0xFF)!=parts[i].ctype)
                        {
                            if (parts[i].ctype==PT_LIFE) create_part(r>>8, x+rx, y+ry,parts[i].ctype|(parts[i].tmp<<8));
                            else create_part(r>>8, x+rx, y+ry, parts[i].ctype);
                        }
                    }
        }
    }

    return 0;
}