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#include <element.h>
int update_SOAP(UPDATE_FUNC_ARGS) {
int r, rx, ry, wc;
wc = -1;
//0x01 - bubble on/off
//0x02 - first mate yes/no
//0x04 - second mate yes/no
if (pv[y/CELL][x/CELL]>0.5f)
parts[i].ctype |= 0x01;
if (parts[i].ctype&0x01 == 0x01)
{
parts[i].vy -= 0.1f;
parts[i].vy *= 0.5f;
parts[i].vx *= 0.5f;
if(parts[i].ctype&0x02 != 0x02)
{
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>>8)>=NPART || !r)
continue;
if ((parts[r>>8].type == PT_SOAP) && (parts[r>>8].ctype&0x01==0x01)
&& (parts[r>>8].ctype&0x04!=0x04))
{
if (parts[r>>8].ctype&0x02 == 0x02)
{
parts[i].tmp = r>>8;
parts[r>>8].tmp2 = i;
parts[i].ctype |= 0x02;
parts[r>>8].ctype |= 0x04;
}
else
{
if (parts[i].ctype&0x02!=0x02)
{
parts[i].tmp = r>>8;
parts[r>>8].tmp2 = i;
parts[i].ctype |= 0x02;
parts[r>>8].ctype |= 0x04;
}
}
}
}
}
else
{
float d, dx, dy;
dx = parts[i].x - parts[parts[i].tmp].x;
dy = parts[i].y - parts[parts[i].tmp].y;
d = 9/(pow(dx, 2)+pow(dy, 2)+9)-0.5;
parts[parts[i].tmp].x -= dx*d;
parts[parts[i].tmp].y -= dy*d;
parts[i].x += dx*d;
parts[i].y += dy*d;
if ((parts[parts[i].tmp].ctype&0x02 == 0x02) && (parts[parts[i].tmp].ctype&0x01 == 0x01))
{
float d, dx, dy;
int ii;
ii = parts[parts[i].tmp].tmp;
dx = parts[ii].x - parts[parts[i].tmp].x;
dy = parts[ii].y - parts[parts[i].tmp].y;
d = 36/(pow(dx, 2)+pow(dy, 2)+36)-0.5;
parts[parts[i].tmp].x -= dx*d*0.5f;
parts[parts[i].tmp].y -= dy*d*0.5f;
parts[ii].x += dx*d*0.5f;
parts[ii].y += dy*d*0.5f;
}
}
}
else
{
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>>8)>=NPART || !r)
continue;
}
}
return 0;
}
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