More electricity rewrite.

5 files changed, 211 insertions, 224 deletions

diff --git a/includes/powder.h b/includes/powder.h
index 1b52803..48c59f8 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -261,8 +261,10 @@ int update_SLTW(UPDATE_FUNC_ARGS);
 int update_SPAWN(UPDATE_FUNC_ARGS);
 int update_SPAWN2(UPDATE_FUNC_ARGS);
 int update_SPNG(UPDATE_FUNC_ARGS);
+int update_SPRK(UPDATE_FUNC_ARGS);
 int update_STKM(UPDATE_FUNC_ARGS);
 int update_STKM2(UPDATE_FUNC_ARGS);
+int update_SWCH(UPDATE_FUNC_ARGS);
 int update_THDR(UPDATE_FUNC_ARGS);
 int update_THRM(UPDATE_FUNC_ARGS);
 int update_VINE(UPDATE_FUNC_ARGS);
@@ -367,7 +369,7 @@ static const part_type ptypes[PT_NUM] =
 	{"GOO",		PIXPACK(0x804000),	0.1f,	0.00f * CFDS,	0.97f,	0.50f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	12,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	75,		"Solid. Deforms and disappears under pressure.", TYPE_SOLID | PROP_NEUTPENETRATE, NULL},
 	{"ICE",		PIXPACK(0xA0C0FF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	-0.0003f* CFDS,	0,	0,		0,	0,	20,	1,	100,	SC_SOLIDS,		R_TEMP-50.0f+273.15f,	46,		"Solid. Freezes water. Crushes under pressure. Cools down air.", TYPE_SOLID, NULL},
 	{"METL",	PIXPACK(0x404060),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Conducts electricity. Meltable.", TYPE_SOLID|PROP_CONDUCTS|PROP_HOT_GLOW, NULL},
-	{"SPRK",	PIXPACK(0xFFFF80),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.001f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Electricity. Conducted by metal and water.", TYPE_SOLID, NULL},
+	{"SPRK",	PIXPACK(0xFFFF80),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.001f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Electricity. Conducted by metal and water.", TYPE_SOLID, &update_SPRK},
 	{"SNOW",	PIXPACK(0xC0E0FF),	0.7f,	0.01f * CFDS,	0.96f,	0.90f,	-0.1f,	0.05f,	0.01f,	-0.00005f* CFDS,1,	0,		0,	0,	20,	1,	50,		SC_POWDERS,		R_TEMP-30.0f+273.15f,	46,		"Light particles.", TYPE_PART, NULL},
 	{"WOOD",	PIXPACK(0xC0A040),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	20,		0,	0,	15,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	164,	"Solid. Flammable.", TYPE_SOLID, NULL},
 	{"NEUT",	PIXPACK(0x20E0FF),	0.0f,	0.00f * CFDS,	1.00f,	1.00f,	-0.99f,	0.0f,	0.01f,	0.002f	* CFDS,	0,	0,		0,	0,	0,	1,	-1,		SC_NUCLEAR,		R_TEMP+4.0f	+273.15f,	60,		"Neutrons. Interact with matter in odd ways.", TYPE_ENERGY, NULL},
@@ -408,7 +410,7 @@ static const part_type ptypes[PT_NUM] =
 	{"BTRY",	PIXPACK(0x858505),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Generates Electricity.", TYPE_SOLID, &update_BTRY},
 	{"LCRY",	PIXPACK(0x505050),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Liquid Crystal. Changes colour when charged. (PSCN Charges, NSCN Discharges)", TYPE_SOLID, NULL},
 	{"STKM",	PIXPACK(0x000000),	0.5f,	0.00f * CFDS,	0.2f,	1.0f,	0.0f,	0.0f,	0.0f,	0.00f	* CFDS,	0,	0,		0,	0,	0,	1,	50,		SC_SPECIAL,		R_TEMP+14.6f+273.15f,	0,		"Stickman. Don't kill him!", 0, &update_STKM},
-	{"SWCH",	PIXPACK(0x103B11),	0.0f,	0.00f * CFDS,	0.90f,  0.00f,  0.0f,	0.0f,	0.00f,  0.000f  * CFDS, 0,	0,		0,	0,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Only conducts when switched on. (PSCN switches on, NSCN switches off)", TYPE_SOLID, NULL},
+	{"SWCH",	PIXPACK(0x103B11),	0.0f,	0.00f * CFDS,	0.90f,  0.00f,  0.0f,	0.0f,	0.00f,  0.000f  * CFDS, 0,	0,		0,	0,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Only conducts when switched on. (PSCN switches on, NSCN switches off)", TYPE_SOLID, &update_SWCH},
 	{"SMKE",	PIXPACK(0x222222),	0.9f,	0.04f * CFDS,	0.97f,	0.20f,	0.0f,	-0.1f,	0.00f,	0.001f	* CFDS,	1,	0,		0,	0,	1,	1,	1,		SC_GAS,			R_TEMP+320.0f+273.15f,	88,		"Smoke", TYPE_GAS, NULL},
 	{"DESL",	PIXPACK(0x440000),	1.0f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.0f,	0.0f	* CFDS,	2,	2,		0,	0,	5,	1,	15,		SC_LIQUID,		R_TEMP+0.0f	+273.15f,	42,		"Liquid. Explodes under high pressure and temperatures", TYPE_LIQUID, NULL},
 	{"COAL",	PIXPACK(0x222222),	0.0f,   0.00f * CFDS,   0.90f,  0.00f,  0.0f,   0.0f,   0.0f,   0.0f	* CFDS, 0,	0,		0,	0,	20,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	200,	"Solid. Burns slowly.", TYPE_SOLID, &update_COAL},
diff --git a/src/elements/.directory b/src/elements/.directory
new file mode 100644
index 0000000..422fc17
--- /dev/null
+++ b/src/elements/.directory
@@ -0,0 +1,7 @@
+[Dolphin]
+AdditionalInfo=3
+Timestamp=2011,1,7,22,19,43
+ViewMode=1
+
+[Settings]
+ShowDotFiles=true
diff --git a/src/elements/sprk.c b/src/elements/sprk.c
new file mode 100644
index 0000000..d6454ff
--- /dev/null
+++ b/src/elements/sprk.c
@@ -0,0 +1,168 @@
+#include <powder.h>
+
+int update_SPRK(UPDATE_FUNC_ARGS) {
+	int r, rt, conduct_sprk, nearp, pavg, ct = parts[i].ctype;
+	if (parts[i].life<=0)
+	{
+		parts[i].type = ct;
+		if (ct!=PT_METL&&ct!=PT_PTCT&&ct!=PT_NTCT&&ct!=PT_IRON&&ct!=PT_BMTL&&ct!=PT_BRMT&&ct!=PT_LRBD&&ct!=PT_RBDM&&ct!=PT_BTRY&&ct!=PT_NBLE&&ct!=PT_QRTZ)
+			parts[i].temp = R_TEMP + 273.15f;
+		if (!ct)
+			ct = PT_METL;
+		parts[i].type = ct;
+		parts[i].life = 4;
+		if (ct == PT_WATR)
+			parts[i].life = 64;
+		if (ct == PT_SLTW)
+			parts[i].life = 54;
+		if (ct == PT_SWCH)
+			parts[i].life = 14;
+		return 0;
+	}
+	if (ct==PT_SPRK)
+	{
+		kill_part(i);
+		return 1;
+	}
+	else if (ct==PT_ETRD&&parts[i].life==1)
+	{
+		nearp = nearest_part(i, PT_ETRD);
+		if (nearp!=-1&&parts_avg(i, nearp, PT_INSL)!=PT_INSL)
+		{
+			create_line((int)parts[i].x, (int)parts[i].y, (int)parts[nearp].x, (int)parts[nearp].y, 0, 0, PT_PLSM);
+			parts[i].type = PT_ETRD;
+			ct = parts[i].ctype = PT_NONE;
+			parts[i].life = 20;
+			parts[nearp].type = PT_SPRK;
+			parts[nearp].life = 9;
+			parts[nearp].ctype = PT_ETRD;
+		}
+	}
+	else if (ct==PT_NBLE&&parts[i].life<=1)
+	{
+		parts[i].life = rand()%150+50;
+		parts[i].type = PT_PLSM;
+		parts[i].ctype = PT_NBLE;
+		parts[i].temp = 3500;
+		pv[y/CELL][x/CELL] += 1;
+	}
+	else if (ct==PT_IRON) {
+		for (nx=-1; nx<2; nx++)
+			for (ny=-1; ny<2; ny++)
+				if (x+nx>=0 && y+ny>0 && x+nx<XRES && y+ny<YRES && (nx || ny))
+				{
+					r = pmap[y+ny][x+nx];
+					if ((r>>8)>=NPART || !r)
+						continue;
+					if (((r&0xFF) == PT_DSTW && 30>(rand()/(RAND_MAX/1000))) ||
+					        ((r&0xFF) == PT_SLTW && 30>(rand()/(RAND_MAX/1000))) ||
+					        ((r&0xFF) == PT_WATR && 30>(rand()/(RAND_MAX/1000))))
+					{
+						parts[r>>8].type=PT_O2;
+						//parts[r>>8].tmp=(rand()/(RAND_MAX/10))+20;
+					}
+				}
+	}
+	for (nx=-2; nx<3; nx++)
+		for (ny=-2; ny<3; ny++)
+			if (x+nx>=0 && y+ny>0 && x+nx<XRES && y+ny<YRES && (nx || ny))
+			{
+				r = pmap[y+ny][x+nx];
+				if ((r>>8)>=NPART || !r)
+					continue;
+				rt = parts[r>>8].type;
+				conduct_sprk = 1;
+
+
+				pavg = parts_avg(r>>8, i,PT_INSL);
+				if ((rt==PT_SWCH||(rt==PT_SPRK&&parts[r>>8].ctype==PT_SWCH)) && pavg!=PT_INSL) // make sparked SWCH turn off correctly
+				{
+					if (rt==PT_SWCH&&ct==PT_PSCN&&parts[r>>8].life<10) {
+						parts[r>>8].life = 10;
+					}
+					if (ct==PT_NSCN) {
+						parts[r>>8].type = PT_SWCH;
+						parts[r>>8].ctype = PT_NONE;
+						parts[r>>8].life = 9;
+					}
+				}
+				else if ((ct==PT_PSCN||ct==PT_NSCN) && (rt==PT_PUMP||rt==PT_HSWC||rt==PT_PCLN||(rt==PT_LCRY&&abs(nx)<2&&abs(ny)<2)))
+				{
+					if (ct==PT_PSCN) parts[r>>8].life = 10;
+					else if (ct==PT_NSCN) parts[r>>8].life = 9;
+				}
+
+
+				// ct = spark from material, rt = spark to material. Make conduct_sprk = 0 if conduction not allowed
+
+				if (pavg == PT_INSL) conduct_sprk = 0;
+				if (!(ptypes[rt].properties&PROP_CONDUCTS||rt==PT_INST)) conduct_sprk = 0;
+				if (abs(nx)+abs(ny)>=4 &&ct!=PT_SWCH&&rt!=PT_SWCH)
+					conduct_sprk = 0;
+
+
+				if (ct==PT_METL && (rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR||(rt==PT_SPRK&&(parts[r>>8].ctype==PT_NTCT||parts[r>>8].ctype==PT_PTCT))))
+				{
+					parts[r>>8].temp = 473.0f;
+					if (rt==PT_NTCT||rt==PT_PTCT)
+						conduct_sprk = 0;
+				}
+				if (ct==PT_NTCT && !(rt==PT_PSCN || rt==PT_NTCT || (rt==PT_NSCN&&parts[i].temp>373.0f)))
+					conduct_sprk = 0;
+				if (ct==PT_PTCT && !(rt==PT_PSCN || rt==PT_PTCT || (rt==PT_NSCN&&parts[i].temp<373.0f)))
+					conduct_sprk = 0;
+				if (ct==PT_INWR && !(rt==PT_NSCN || rt==PT_INWR || rt==PT_PSCN))
+					conduct_sprk = 0;
+				if (ct==PT_NSCN && rt==PT_PSCN)
+					conduct_sprk = 0;
+				if (ct==PT_ETRD && (parts[i].life!=5||!(rt==PT_METL||rt==PT_ETRD||rt==PT_BMTL||rt==PT_BRMT||rt==PT_LRBD||rt==PT_RBDM||rt==PT_PSCN||rt==PT_NSCN)))
+					conduct_sprk = 0;
+				if (ct==PT_INST&&rt!=PT_NSCN) conduct_sprk = 0;
+				if (ct==PT_SWCH && (rt==PT_PSCN||rt==PT_NSCN||rt==PT_WATR||rt==PT_SLTW||rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR))
+					conduct_sprk = 0;
+				if (rt==PT_QRTZ && !((ct==PT_NSCN||ct==PT_METL||ct==PT_PSCN||ct==PT_QRTZ) && (parts[r>>8].temp<173.15||pv[(y+ny)/CELL][(x+nx)/CELL]>8)))
+					conduct_sprk = 0;
+				if (rt==PT_NTCT && !(ct==PT_NSCN || ct==PT_NTCT || (ct==PT_PSCN&&parts[r>>8].temp>373.0f)))
+					conduct_sprk = 0;
+				if (rt==PT_PTCT && !(ct==PT_NSCN || ct==PT_PTCT || (ct==PT_PSCN&&parts[r>>8].temp<373.0f)))
+					conduct_sprk = 0;
+				if (rt==PT_INWR && !(ct==PT_NSCN || ct==PT_INWR || ct==PT_PSCN))
+					conduct_sprk = 0;
+				if (rt==PT_INST&&ct!=PT_PSCN)
+					conduct_sprk = 0;
+
+				if (conduct_sprk) {
+					if (ct==PT_ETRD) {
+						parts[i].type = PT_ETRD;
+						parts[i].ctype = PT_NONE;
+						parts[i].life = 20;
+						parts[r>>8].type = PT_SPRK;
+						parts[r>>8].life = 4;
+						parts[r>>8].ctype = rt;
+					}
+					else if (rt==PT_WATR||rt==PT_SLTW) {
+						if (parts[r>>8].life==0 && (parts[i].life<2 || ((r>>8)<i && parts[i].life<3)))
+						{
+							parts[r>>8].type = PT_SPRK;
+							if (rt==PT_WATR) parts[r>>8].life = 6;
+							else parts[r>>8].life = 5;
+							parts[r>>8].ctype = rt;
+						}
+					}
+					else if (rt==PT_INST) {
+						if (parts[i].life>=3&&parts[r>>8].life==0)
+						{
+							flood_parts(x+nx,y+ny,PT_SPRK,PT_INST,-1);//spark the wire
+						}
+					}
+					else if (parts[r>>8].life==0 && (parts[i].life<3 || ((r>>8)<i && parts[i].life<4))) {
+						parts[r>>8].life = 4;
+						parts[r>>8].ctype = rt;
+						rt = parts[r>>8].type = PT_SPRK;
+						if (parts[r>>8].temp+10.0f<673.0f&&!legacy_enable&&(rt==PT_METL||rt==PT_BMTL||rt==PT_BRMT||rt==PT_PSCN||rt==PT_NSCN||rt==PT_ETRD||rt==PT_NBLE||rt==PT_IRON))
+							parts[r>>8].temp = parts[r>>8].temp+10.0f;
+					}
+				}
+			}
+	return 0;
+}
diff --git a/src/elements/swch.c b/src/elements/swch.c
new file mode 100644
index 0000000..a57f70c
--- /dev/null
+++ b/src/elements/swch.c
@@ -0,0 +1,30 @@
+#include <powder.h>
+
+int update_SWCH(UPDATE_FUNC_ARGS) {
+	int r, rt;
+	for (nx=-2; nx<3; nx++)
+		for (ny=-2; ny<3; ny++)
+			if (x+nx>=0 && y+ny>0 &&
+			        x+nx<XRES && y+ny<YRES && (nx || ny))
+			{
+				r = pmap[y+ny][x+nx];
+				if ((r>>8)>=NPART || !r)
+					continue;
+				if (parts_avg(i,r>>8,PT_INSL)!=PT_INSL) {
+					rt = parts[r>>8].type; // not r&0xFF because pmap is not yet always updated (TODO)
+					if (rt==PT_SWCH)
+					{
+						if (parts[i].life==10&&parts[r>>8].life<10&&parts[r>>8].life>0)
+							parts[i].life = 9;
+						else if (parts[i].life==0&&parts[r>>8].life==10)
+							parts[i].life = 10;
+					}
+					else if (rt==PT_SPRK&&parts[i].life==10&&parts[r>>8].ctype!=PT_PSCN&&parts[r>>8].ctype!=PT_NSCN) {
+						parts[i].type = PT_SPRK;
+						parts[i].ctype = PT_SWCH;
+						parts[i].life = 4;
+					}
+				}
+			}
+	return 0;
+}
diff --git a/src/powder.c b/src/powder.c
index 550a329..a8ed008 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -1301,7 +1301,7 @@ void update_particles_i(pixel *vid, int start, int inc)
 			//printf("parts[%d].type: %d\n", i, parts[i].type);
 
 
-			if (parts[i].life && t!=PT_ACID  && t!=PT_COAL && t!=PT_WOOD && t!=PT_NBLE && t!=PT_STKM && t!=PT_STKM2 && t!=PT_FUSE && t!=PT_FSEP && t!=PT_BCOL && t!=PT_GOL && t!=PT_SPNG && t!=PT_DEUT)
+			if (parts[i].life && t!=PT_ACID  && t!=PT_COAL && t!=PT_WOOD && t!=PT_STKM && t!=PT_STKM2 && t!=PT_FUSE && t!=PT_FSEP && t!=PT_BCOL && t!=PT_GOL && t!=PT_SPNG && t!=PT_DEUT)
 			{
 				if (!(parts[i].life==10&&(t==PT_SWCH||t==PT_LCRY||t==PT_PCLN||t==PT_HSWC||t==PT_PUMP)))
 					parts[i].life--;
@@ -1782,23 +1782,6 @@ void update_particles_i(pixel *vid, int start, int inc)
 							}
 						}
 			}
-			else if ((t==PT_SPRK||parts[i].type==PT_SPRK) && parts[i].ctype==PT_IRON) {
-				for (nx=-1; nx<2; nx++)
-					for (ny=-1; ny<2; ny++)
-						if (x+nx>=0 && y+ny>0 && x+nx<XRES && y+ny<YRES && (nx || ny))
-						{
-							r = pmap[y+ny][x+nx];
-							if ((r>>8)>=NPART || !r)
-								continue;
-							if (((r&0xFF) == PT_DSTW && 30>(rand()/(RAND_MAX/1000))) ||
-							        ((r&0xFF) == PT_SLTW && 30>(rand()/(RAND_MAX/1000))) ||
-							        ((r&0xFF) == PT_WATR && 30>(rand()/(RAND_MAX/1000))))
-							{
-								parts[r>>8].type=PT_O2;
-								//parts[r>>8].tmp=(rand()/(RAND_MAX/10))+20;
-							}
-						}
-			}
 			else if (t==PT_NEUT)
 			{
 				rt = 3 + (int)pv[y/CELL][x/CELL];
@@ -1994,23 +1977,6 @@ void update_particles_i(pixel *vid, int start, int inc)
 						parts[i].temp = 0;
 				}
 			}
-			else if (t==PT_INST)
-			{
-				for (nx=-2; nx<3; nx++)
-					for (ny=-2; ny<3; ny++)
-						if (x+nx>=0 && y+ny>0 &&
-						        x+nx<XRES && y+ny<YRES && (nx || ny) && abs(nx)+abs(ny)<4)
-						{
-							r = pmap[y+ny][x+nx];
-							if ((r>>8)>=NPART || !r)
-								continue;
-							else if (parts[r>>8].type==PT_SPRK&&(parts[r>>8].ctype==PT_PSCN)&&(parts[r>>8].life>=3)&&parts[i].life==0&&parts_avg(i,r>>8,PT_INSL)!=PT_INSL)
-							{
-								flood_parts(x,y,PT_SPRK,PT_INST,-1);//spark the wire
-								//parts[r>>8].type=parts[r>>8].ctype;
-							}
-						}
-			}
 			else if (t==PT_LCRY&&parts[i].life==10)
 			{
 				for (nx=-1; nx<2; nx++)
@@ -2030,26 +1996,7 @@ void update_particles_i(pixel *vid, int start, int inc)
 							}
 						}
 			}
-			else if (t==PT_SWCH&&parts[i].life==10)
-			{
-				for (nx=-2; nx<3; nx++)
-					for (ny=-2; ny<3; ny++)
-						if (x+nx>=0 && y+ny>0 &&
-						        x+nx<XRES && y+ny<YRES && (nx || ny))
-						{
-							r = pmap[y+ny][x+nx];
-							if ((r>>8)>=NPART || !r)
-								continue;
-							if ((r&0xFF) == PT_SWCH&&parts_avg(i,r>>8,PT_INSL)!=PT_INSL)
-							{
-								if (parts[r>>8].life<10&&parts[r>>8].life>0)
-									parts[i].life = 9;
-								else if (parts[r>>8].life==0)
-									parts[r>>8].life = 10;
-							}
-						}
-			}
-			else if (t==PT_PCLN||t==PT_HSWC||t==PT_PUMP&&parts[i].life==10)
+			else if ((t==PT_PCLN||t==PT_HSWC||t==PT_PUMP)&&parts[i].life==10)
 			{
 				for (nx=-2; nx<3; nx++)
 					for (ny=-2; ny<3; ny++)
@@ -2068,173 +2015,6 @@ void update_particles_i(pixel *vid, int start, int inc)
 							}
 						}
 			}
-			if (t==PT_SPRK) {
-				ct = parts[i].ctype;
-
-				if (parts[i].life<=0)
-				{
-					t = ct;
-					if (t!=PT_METL&&t!=PT_PTCT&&t!=PT_NTCT&&t!=PT_IRON&&t!=PT_BMTL&&t!=PT_BRMT&&t!=PT_LRBD&&t!=PT_RBDM&&t!=PT_BTRY&&t!=PT_NBLE&&t!=PT_QRTZ)
-						parts[i].temp = R_TEMP + 273.15f;
-					if (!t)
-						t = PT_METL;
-					parts[i].type = t;
-					parts[i].life = 4;
-					if (t == PT_WATR)
-						parts[i].life = 64;
-					if (t == PT_SLTW)
-						parts[i].life = 54;
-					if (t == PT_SWCH)
-						parts[i].life = 15;
-				}
-				if (ct==PT_SPRK)
-				{
-					kill_part(i);
-					continue;
-				}
-				else if (ct==PT_ETRD&&parts[i].life==1)
-				{
-					nearp = nearest_part(i, PT_ETRD);
-					if (nearp!=-1&&parts_avg(i, nearp, PT_INSL)!=PT_INSL)
-					{
-						create_line((int)parts[i].x, (int)parts[i].y, (int)parts[nearp].x, (int)parts[nearp].y, 0, 0, PT_PLSM);
-						t = parts[i].type = PT_ETRD;
-						ct = parts[i].ctype = PT_NONE;
-						parts[i].life = 20;
-						parts[nearp].type = PT_SPRK;
-						parts[nearp].life = 9;
-						parts[nearp].ctype = PT_ETRD;
-					}
-				}
-				for (nx=-2; nx<3; nx++)
-					for (ny=-2; ny<3; ny++)
-						if (x+nx>=0 && y+ny>0 && x+nx<XRES && y+ny<YRES && (nx || ny))
-						{
-							r = pmap[y+ny][x+nx];
-							if ((r>>8)>=NPART || !r)
-								continue;
-							rt = parts[r>>8].type;
-							conduct_sprk = 1;
-
-
-							pavg = parts_avg(r>>8, i,PT_INSL);
-							if ((rt==PT_SWCH||(rt==PT_SPRK&&parts[r>>8].ctype==PT_SWCH)) && pavg!=PT_INSL)
-							{
-								if (rt==PT_SWCH) {
-									if (ct==PT_PSCN) {
-										if (parts[r>>8].life<10) parts[r>>8].life = 10;
-									}
-									else if (ct==PT_NSCN) parts[r>>8].life = 9;
-									else if (parts[r>>8].life==10) {
-										parts[r>>8].type = PT_SPRK;
-										parts[r>>8].ctype = PT_SWCH;
-										parts[r>>8].life = 4;
-									}
-								}
-								else if (ct==PT_NSCN) { // make sparked SWCH turn off correctly
-									parts[r>>8].type = PT_SWCH;
-									parts[r>>8].ctype = PT_NONE;
-									parts[r>>8].life = 9;
-								}
-							}
-							else if ((ct==PT_PSCN||ct==PT_NSCN) && (rt==PT_PUMP||rt==PT_HSWC||rt==PT_PCLN||(rt==PT_LCRY&&abs(nx)<2&&abs(ny)<2)))
-							{
-								if (ct==PT_PSCN) parts[r>>8].life = 10;
-								else if (ct==PT_NSCN) parts[r>>8].life = 9;
-							}
-
-
-							if (pavg == PT_INSL) conduct_sprk = 0;
-							if (t!=PT_SPRK) conduct_sprk = 0;
-							if (!(ptypes[rt].properties&PROP_CONDUCTS)) conduct_sprk = 0;
-
-							// ct = spark from material, rt = spark to material. Make conduct_sprk = 0 if conduction not allowed
-							if (ct==PT_METL && (rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR||(rt==PT_SPRK&&(parts[r>>8].ctype==PT_NTCT||parts[r>>8].ctype==PT_PTCT)))) {
-								parts[r>>8].temp = 473.0f;
-								if (rt==PT_NTCT||rt==PT_PTCT)
-									conduct_sprk = 0;
-							}
-							if (abs(nx)+abs(ny)>=4 &&ct!=PT_SWCH&&rt!=PT_SWCH)
-								conduct_sprk = 0;
-							if (ct==PT_NSCN&&rt==PT_PSCN)
-								conduct_sprk = 0;
-							if (rt==PT_NTCT) {
-								if (ct==PT_NSCN || ct==PT_NTCT || (ct==PT_PSCN&&parts[r>>8].temp>373.0f)) {}
-								else conduct_sprk = 0;
-							}
-							if (ct==PT_NTCT) {
-								if (rt==PT_PSCN || rt==PT_NTCT || (rt==PT_NSCN&&parts[i].temp>373.0f)) {}
-								else conduct_sprk = 0;
-							}
-							if (rt==PT_PTCT) {
-								if (ct==PT_NSCN || ct==PT_PTCT || (ct==PT_PSCN&&parts[r>>8].temp<373.0f)) {}
-								else conduct_sprk = 0;
-							}
-							if (ct==PT_PTCT) {
-								if (rt==PT_PSCN || rt==PT_PTCT || (rt==PT_NSCN&&parts[i].temp<373.0f)) {}
-								else conduct_sprk = 0;
-							}
-							if (rt==PT_INWR) {
-								if (ct==PT_NSCN || ct==PT_INWR || ct==PT_PSCN) {}
-								else conduct_sprk = 0;
-							}
-							if (ct==PT_INWR) {
-								if (rt==PT_NSCN || rt==PT_INWR || rt==PT_PSCN) {}
-								else conduct_sprk = 0;
-							}
-							if (ct==PT_INST&&rt!=PT_NSCN) conduct_sprk = 0;
-							if (rt==PT_INST&&ct!=PT_PSCN) conduct_sprk = 0;
-							if (ct==PT_SWCH&&(rt==PT_PSCN||rt==PT_NSCN||rt==PT_WATR||rt==PT_SLTW||rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR)) conduct_sprk = 0;
-							if (rt==PT_QRTZ) {
-								if ((ct==PT_NSCN||ct==PT_METL||ct==PT_PSCN||ct==PT_QRTZ) && (parts[r>>8].temp<173.15||pv[(y+ny)/CELL][(x+nx)/CELL]>8)) {}
-								else conduct_sprk = 0;
-							}
-							if (conduct_sprk) {
-								if (rt==PT_WATR||rt==PT_SLTW) {
-									if (parts[r>>8].life==0 && (parts[i].life<2 || ((r>>8)<i && parts[i].life<3)))
-									{
-										parts[r>>8].type = PT_SPRK;
-										if (rt==PT_WATR) parts[r>>8].life = 6;
-										else parts[r>>8].life = 5;
-										parts[r>>8].ctype = rt;
-									}
-								}
-								else if (parts[r>>8].life==0 && (parts[i].life<3 || ((r>>8)<i && parts[i].life<4))) {
-									parts[r>>8].life = 4;
-									parts[r>>8].ctype = rt;
-									rt = parts[r>>8].type = PT_SPRK;
-									if (parts[r>>8].temp+10.0f<673.0f&&!legacy_enable&&(rt==PT_METL||rt==PT_BMTL||rt==PT_BRMT||rt==PT_PSCN||rt==PT_NSCN||rt==PT_ETRD||rt==PT_NBLE||rt==PT_IRON))
-										parts[r>>8].temp = parts[r>>8].temp+10.0f;
-								}
-							}
-
-							if (ct==PT_ETRD&&parts[i].life==5)
-							{
-								if (rt==PT_METL||rt==PT_ETRD||rt==PT_BMTL||rt==PT_BRMT||rt==PT_LRBD||rt==PT_RBDM||rt==PT_PSCN||rt==PT_NSCN)
-								{
-									t = parts[i].type = PT_ETRD;
-									parts[i].ctype = PT_NONE;
-									parts[i].life = 20;
-									parts[r>>8].type = PT_SPRK;
-									parts[r>>8].life = 4;
-									parts[r>>8].ctype = rt;
-								}
-							}
-							else if (ct==PT_NBLE&&parts[i].life<=1)
-							{
-								parts[i].life = rand()%150+50;
-								t = parts[i].type = PT_PLSM;
-								ct = parts[i].ctype = PT_NBLE;
-								parts[i].temp = 3500;
-								pv[y/CELL][x/CELL] += 1;
-							}
-							else if (ct==PT_SWCH&&parts[i].life<=0)
-							{
-								t = parts[i].type = PT_SWCH;
-								parts[i].life = 14;
-							}
-						}
-			}
 			if (t==PT_FIRE || t==PT_PLSM || t==PT_LAVA || t==PT_SPRK || fe || (t==PT_PHOT&&(1>rand()%10)))
 			{
 				for (nx=-2; nx<3; nx++)