Mercury

includes/powder.h

@@ -203,7 +203,8 @@
 #define PT_SOAP 149
 #define PT_NBHL 150
 #define PT_NWHL 151
-#define PT_NUM  152
+#define PT_MERC 152
+#define PT_NUM  153
 
 #define R_TEMP 22
 #define MAX_TEMP 9999
@@ -313,6 +314,7 @@ int update_O2(UPDATE_FUNC_ARGS);
 int update_H2(UPDATE_FUNC_ARGS);
 int update_NBHL(UPDATE_FUNC_ARGS);
 int update_NWHL(UPDATE_FUNC_ARGS);
+int update_MERC(UPDATE_FUNC_ARGS);
 
 int update_MISC(UPDATE_FUNC_ARGS);
 int update_legacy_PYRO(UPDATE_FUNC_ARGS);
@@ -540,6 +542,7 @@ static const part_type ptypes[PT_NUM] =
 	{"SOAP",	PIXPACK(0xF5F5DC),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	20,	1,	35,		SC_LIQUID,		R_TEMP-2.0f	+273.15f,	29,		"Soap. Creates bubbles.", ST_LIQUID, TYPE_LIQUID|PROP_NEUTPENETRATE|PROP_LIFE_DEC, &update_SOAP},
 	{"BHOL",	PIXPACK(0x202020),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SPECIAL,		R_TEMP+0.0f	+273.15f,	186,	"Black hole (Requires newtonian gravity)", ST_SOLID, TYPE_SOLID, &update_NBHL},
 	{"WHOL",	PIXPACK(0xFFFFFF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SPECIAL,		R_TEMP+0.0f	+273.15f,	186,	"White hole (Requires newtonian gravity)", ST_SOLID, TYPE_SOLID, &update_NWHL},
+	{"MERC",    PIXPACK(0x736B6D),	0.4f,	0.04f * CFDS,	0.94f,	0.80f,	0.0f,	0.3f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	20,	1,	91,		SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Mercury. Volume changes with temperature, Conductive.", ST_LIQUID, TYPE_LIQUID|PROP_CONDUCTS|PROP_NEUTABSORB|PROP_LIFE_DEC, &update_MERC},
 	//Name		Colour				Advec	Airdrag			Airloss	Loss	Collid	Grav	Diffus	Hotair			Fal	Burn	Exp	Mel	Hrd	M	Weights	Section			H						Ins		Description
 };
 
@@ -707,6 +710,7 @@ static part_transition ptransitions[PT_NUM] =
 	/* SOAP */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITL,	NT},
 	/* NBHL */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
 	/* NWHL */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
+	/* MERC */ {IPL,    NT,         IPH,    NT,         ITL,    NT,         ITH,	NT},
 };
 #undef IPL
 #undef IPH

src/elements/merc.c

@@ -0,0 +1,73 @@
+#include <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>>8)>=NPART || !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;
+							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 ((r>>8)>=NPART || (parts[i].tmp<=maxtmp))
+						continue;
+					if ((bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_WALLELEC||bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_EWALL||bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_DESTROYALL||bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_WALL||
+					        bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_ALLOWAIR||bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_ALLOWSOLID||bmap[(y+ry)/CELL][(x+rx)/CELL]==WL_ALLOWGAS))
+						continue;
+					if ((!r)&&parts[i].tmp>=1)//if nothing then create deut
+					{
+						np = 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>>8)>=NPART || !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;
+}