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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>
#include "hmap.h"
int update_FIRW(UPDATE_FUNC_ARGS) {
int r, rx, ry, rt, np;
if (parts[i].tmp<=0) {
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 && (rx || ry))
{
r = pmap[y+ry][x+rx];
if (!r)
continue;
rt = parts[r>>8].type;
if (rt==PT_FIRE||rt==PT_PLSM||rt==PT_THDR)
{
float gx, gy, multiplier;
get_gravity_field(x, y, ptypes[PT_FIRW].gravity, 1.0f, &gx, &gy);
if (gx*gx+gy*gy < 0.001f)
{
float angle = (rand()%6284)*0.001f;//(in radians, between 0 and 2*pi)
gx += sinf(angle)*ptypes[PT_FIRW].gravity*0.5f;
gy += cosf(angle)*ptypes[PT_FIRW].gravity*0.5f;
}
parts[i].tmp = 1;
parts[i].life = rand()%10+20;
multiplier = (parts[i].life+20)*0.2f/sqrtf(gx*gx+gy*gy);
parts[i].vx -= gx*multiplier;
parts[i].vy -= gy*multiplier;
return 0;
}
}
}
else if (parts[i].tmp==1) {
if (parts[i].life<=0) {
parts[i].tmp=2;
} else {
parts[i].flags &= ~FLAG_STAGNANT;
}
}
else if (parts[i].tmp>=2) {
float angle, magnitude;
int caddress = (rand()%200)*3;
int n;
unsigned col = (((unsigned char)(firw_data[caddress]))<<16) | (((unsigned char)(firw_data[caddress+1]))<<8) | ((unsigned char)(firw_data[caddress+2]));
for (n=0; n<40; n++)
{
np = create_part(-3, x, y, PT_EMBR);
if (np>-1)
{
magnitude = ((rand()%60)+40)*0.05f;
angle = (rand()%6284)*0.001f;//(in radians, between 0 and 2*pi)
parts[np].vx = parts[i].vx*0.5f + cosf(angle)*magnitude;
parts[np].vy = parts[i].vy*0.5f + sinf(angle)*magnitude;
parts[np].ctype = col;
parts[np].tmp = 1;
parts[np].life = rand()%40+70;
parts[np].temp = (rand()%500)+5750.0f;
parts[np].dcolour = parts[i].dcolour;
}
}
pv[y/CELL][x/CELL] += 8.0f;
kill_part(i);
return 1;
}
return 0;
}
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