116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <element.h>
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int update_PBCN(UPDATE_FUNC_ARGS) {
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int r, rx, ry;
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if (parts[i].life>0 && parts[i].life!=10)
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parts[i].life--;
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if (!parts[i].tmp2 && pv[y/CELL][x/CELL]>4.0f)
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parts[i].tmp2 = rand()%40+80;
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if (parts[i].tmp2)
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{
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float advection = 0.1f;
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parts[i].vx += advection*vx[y/CELL][x/CELL];
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parts[i].vy += advection*vy[y/CELL][x/CELL];
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parts[i].tmp2--;
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if(!parts[i].tmp2){
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kill_part(i);
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return 1;
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}
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}
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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)))
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for (rx=-1; rx<2; rx++)
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for (ry=-1; ry<2; ry++)
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if (x+rx>=0 && y+ry>=0 && x+rx<XRES && y+ry<YRES)
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{
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r = photons[y+ry][x+rx];
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if (!r)
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r = pmap[y+ry][x+rx];
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if (!r)
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continue;
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if ((r&0xFF)!=PT_CLNE && (r&0xFF)!=PT_PCLN &&
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(r&0xFF)!=PT_BCLN && (r&0xFF)!=PT_SPRK &&
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(r&0xFF)!=PT_NSCN && (r&0xFF)!=PT_PSCN &&
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(r&0xFF)!=PT_STKM && (r&0xFF)!=PT_STKM2 &&
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(r&0xFF)!=PT_PBCN && (r&0xFF)<PT_NUM)
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{
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parts[i].ctype = r&0xFF;
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if ((r&0xFF)==PT_LIFE || (r&0xFF)==PT_LAVA)
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parts[i].tmp = parts[r>>8].ctype;
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}
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}
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if (parts[i].life==10)
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{
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for (rx=-2; rx<3; rx++)
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for (ry=-2; ry<3; ry++)
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if (x+rx>=0 && y+ry>0 && x+rx<XRES && y+ry<YRES && (rx || ry))
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{
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r = pmap[y+ry][x+rx];
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if (!r)
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continue;
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if ((r&0xFF)==PT_PBCN)
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{
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if (parts[r>>8].life<10&&parts[r>>8].life>0)
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parts[i].life = 9;
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else if (parts[r>>8].life==0)
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parts[r>>8].life = 10;
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}
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}
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}
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if (parts[i].ctype>0 && parts[i].ctype<PT_NUM && ptypes[parts[i].ctype].enabled && parts[i].life==10) {
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if (parts[i].ctype==PT_PHOT) {//create photons a different way
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for (rx=-1; rx<2; rx++) {
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for (ry=-1; ry<2; ry++)
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{
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if (rx || ry)
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{
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int r = create_part(-1, x+rx, y+ry, parts[i].ctype);
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if (r!=-1)
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{
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parts[r].vx = rx*3;
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parts[r].vy = ry*3;
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if (r>i)
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{
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// Make sure movement doesn't happen until next frame, to avoid gaps in the beams of photons produced
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parts[r].flags |= FLAG_SKIPMOVE;
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}
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}
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}
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}
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}
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}
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else if (parts[i].ctype==PT_LIFE) {//create life a different way
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for (rx=-1; rx<2; rx++) {
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for (ry=-1; ry<2; ry++) {
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create_part(-1, x+rx, y+ry, parts[i].ctype|(parts[i].tmp<<8));
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}
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}
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}
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else if (parts[i].ctype!=PT_LIGH || (rand()%30)==0)
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{
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int np = create_part(-1, x+rand()%3-1, y+rand()%3-1, parts[i].ctype);
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if (np>=0)
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{
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if (parts[i].ctype==PT_LAVA && parts[i].tmp>0 && parts[i].tmp<PT_NUM && ptransitions[parts[i].tmp].tht==PT_LAVA)
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parts[np].ctype = parts[i].tmp;
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}
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}
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}
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return 0;
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}
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