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#include "simulation/Element.h"
int update_MERC(UPDATE_FUNC_ARGS) {
int r, rx, ry, trade, np;
int maxtmp = ((10000/(parts[i].temp + 1))-1);
if ((10000%((int)parts[i].temp+1))>rand()%((int)parts[i].temp+1))
maxtmp ++;
if (parts[i].tmp < maxtmp)
{
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 || (parts[i].tmp >=maxtmp))
continue;
if ((r&0xFF)==PT_MERC&&33>=rand()/(RAND_MAX/100)+1)
{
if ((parts[i].tmp + parts[r>>8].tmp + 1) <= maxtmp)
{
parts[i].tmp += parts[r>>8].tmp + 1;
sim->kill_part(r>>8);
}
}
}
}
else
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 (parts[i].tmp<=maxtmp)
continue;
if ((!r)&&parts[i].tmp>=1)//if nothing then create deut
{
np = sim->create_part(-1,x+rx,y+ry,PT_MERC);
if (np<0) continue;
parts[i].tmp--;
parts[np].temp = parts[i].temp;
parts[np].tmp = 0;
}
}
for ( trade = 0; trade<4; trade ++)
{
rx = rand()%5-2;
ry = rand()%5-2;
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_MERC&&(parts[i].tmp>parts[r>>8].tmp)&&parts[i].tmp>0)//diffusion
{
int temp = parts[i].tmp - parts[r>>8].tmp;
if (temp ==1)
{
parts[r>>8].tmp ++;
parts[i].tmp --;
}
else if (temp>0)
{
parts[r>>8].tmp += temp/2;
parts[i].tmp -= temp/2;
}
}
}
}
return 0;
}
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