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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_FWRK(UPDATE_FUNC_ARGS) {
int r, rx, ry, np;
if (parts[i].life==0 && ((parts[i].temp>400&&(9+parts[i].temp/40)>rand()%100000&&surround_space)||parts[i].ctype==PT_DUST))
{
float gx, gy, multiplier, gmax;
int randTmp;
get_gravity_field(x, y, ptypes[PT_FWRK].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_FWRK].gravity*0.5f;
gy += cosf(angle)*ptypes[PT_FWRK].gravity*0.5f;
}
gmax = fmaxf(fabsf(gx), fabsf(gy));
if (eval_move(PT_FWRK, (int)(x-(gx/gmax)+0.5f), (int)(y-(gy/gmax)+0.5f), NULL))
{
multiplier = 15.0f/sqrtf(gx*gx+gy*gy);
//Some variation in speed parallel to gravity direction
randTmp = (rand()%200)-100;
gx += gx*randTmp*0.002f;
gy += gy*randTmp*0.002f;
//and a bit more variation in speed perpendicular to gravity direction
randTmp = (rand()%200)-100;
gx += -gy*randTmp*0.005f;
gy += gx*randTmp*0.005f;
parts[i].life=rand()%10+18;
parts[i].ctype=0;
parts[i].vx -= gx*multiplier;
parts[i].vy -= gy*multiplier;
parts[i].dcolour = parts[i].dcolour;
return 0;
}
}
if (parts[i].life>=45)
parts[i].life=0;
if (parts[i].life<3&&parts[i].life>0)
{
int r = (rand()%245+11);
int g = (rand()%245+11);
int b = (rand()%245+11);
int n;
float angle, magnitude;
unsigned col = (r<<16) | (g<<8) | b;
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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