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/*
* 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_PBCN(UPDATE_FUNC_ARGS) {
int r, rx, ry;
if (parts[i].life>0 && parts[i].life!=10)
parts[i].life--;
if (!parts[i].tmp2 && pv[y/CELL][x/CELL]>4.0f)
parts[i].tmp2 = rand()%40+80;
if (parts[i].tmp2)
{
float advection = 0.1f;
parts[i].vx += advection*vx[y/CELL][x/CELL];
parts[i].vy += advection*vy[y/CELL][x/CELL];
parts[i].tmp2--;
if(!parts[i].tmp2){
kill_part(i);
return 1;
}
}
if (parts[i].ctype<=0 || parts[i].ctype>=PT_NUM || !ptypes[parts[i].ctype].enabled || (parts[i].ctype==PT_LIFE && (parts[i].tmp<0 || parts[i].tmp>=NGOLALT)))
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_CLNE && (r&0xFF)!=PT_PCLN &&
(r&0xFF)!=PT_BCLN && (r&0xFF)!=PT_SPRK &&
(r&0xFF)!=PT_NSCN && (r&0xFF)!=PT_PSCN &&
(r&0xFF)!=PT_STKM && (r&0xFF)!=PT_STKM2 &&
(r&0xFF)!=PT_PBCN && (r&0xFF)<PT_NUM)
{
parts[i].ctype = r&0xFF;
if ((r&0xFF)==PT_LIFE || (r&0xFF)==PT_LAVA)
parts[i].tmp = parts[r>>8].ctype;
}
}
if (parts[i].life==10)
{
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_PBCN)
{
if (parts[r>>8].life<10&&parts[r>>8].life>0)
parts[i].life = 9;
else if (parts[r>>8].life==0)
parts[r>>8].life = 10;
}
}
}
if (parts[i].ctype>0 && parts[i].ctype<PT_NUM && ptypes[parts[i].ctype].enabled && parts[i].life==10) {
if (parts[i].ctype==PT_PHOT) {//create photons a different way
for (rx=-1; rx<2; rx++) {
for (ry=-1; ry<2; ry++)
{
if (rx || ry)
{
int r = create_part(-1, x+rx, y+ry, parts[i].ctype);
if (r!=-1)
{
parts[r].vx = rx*3;
parts[r].vy = ry*3;
if (r>i)
{
// Make sure movement doesn't happen until next frame, to avoid gaps in the beams of photons produced
parts[r].flags |= FLAG_SKIPMOVE;
}
}
}
}
}
}
else if (parts[i].ctype==PT_LIFE) {//create life a different way
for (rx=-1; rx<2; rx++) {
for (ry=-1; ry<2; ry++) {
create_part(-1, x+rx, y+ry, parts[i].ctype|(parts[i].tmp<<8));
}
}
}
else if (parts[i].ctype!=PT_LIGH || (rand()%30)==0)
{
int np = create_part(-1, x+rand()%3-1, y+rand()%3-1, parts[i].ctype);
if (np>=0)
{
if (parts[i].ctype==PT_LAVA && parts[i].tmp>0 && parts[i].tmp<PT_NUM && ptransitions[parts[i].tmp].tht==PT_LAVA)
parts[np].ctype = parts[i].tmp;
}
}
}
return 0;
}
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