DTEC, generates a spark when something with it's ctype is nearby

includes/powder.h

@@ -236,7 +236,8 @@
 #define PT_FRAY 159
 #define PT_REPL 160
 #define PT_PPIP 161
-#define PT_NUM  162
+#define PT_DTEC 162
+#define PT_NUM  163
 
 #define R_TEMP 22
 #define MAX_TEMP 9999
@@ -389,6 +390,7 @@ int update_CLNE(UPDATE_FUNC_ARGS);
 int update_COAL(UPDATE_FUNC_ARGS);
 int update_DEUT(UPDATE_FUNC_ARGS);
 int update_DSTW(UPDATE_FUNC_ARGS);
+int update_DTEC(UPDATE_FUNC_ARGS);
 int update_EMBR(UPDATE_FUNC_ARGS);
 int update_FOG(UPDATE_FUNC_ARGS);
 int update_FRZW(UPDATE_FUNC_ARGS);

src/elementdata.c

@@ -192,7 +192,8 @@ part_type ptypes[PT_NUM] =
 	{"FIGH",	PIXPACK(0xFFE0A0),	0.5f,	0.00f * CFDS,	0.2f,	1.0f,	0.0f,	0.0f,	0.0f,	0.00f	* CFDS,	0,	0,		0,	0,	0,	1,	1,	50,		SC_SPECIAL,		R_TEMP+14.6f+273.15f,	0,		"Fighter. Tries to kill stickmen.", ST_NONE, 0, &update_FIGH, &graphics_STKM},
 	{"FRAY",	PIXPACK(0x00BBFF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	1,	100,	SC_FORCE,		20.0f+0.0f +273.15f,	0,		"Force Emitter. Push or pull objects based on temp value, use like ARAY", ST_SOLID, TYPE_SOLID|PROP_LIFE_DEC, &update_FRAY, NULL},
 	{"RPEL",	PIXPACK(0x99CC00),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	1,	100,	SC_FORCE,		20.0f+0.0f	+273.15f,	0,		"Repel or attract particles based on temp value.", ST_NONE, TYPE_SOLID, &update_REPL, NULL},
-	{"PPIP",	PIXPACK(0x444466),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	1,	100,	SC_POWERED,		273.15f,				0,		"Powered version of pipe", ST_SOLID, TYPE_SOLID|PROP_LIFE_DEC, &update_PIPE, &graphics_PIPE},
+	{"PPIP",	PIXPACK(0x444466),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	1,	100,	SC_POWERED,		273.15f,				0,		"Powered pipe", ST_SOLID, TYPE_SOLID|PROP_LIFE_DEC, &update_PIPE, &graphics_PIPE},
+	{"DTEC",	PIXPACK(0xFD9D18),	0.0f,	0.00f * CFDS,	0.96f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	1,	100,	SC_SPECIAL,		R_TEMP+273.15f,			0,		"Creates a spark when something with its ctype is nearby", ST_SOLID, TYPE_SOLID, &update_DTEC, NULL},
 	//Name		Colour				Advec	Airdrag			Airloss	Loss	Collid	Grav	Diffus	Hotair			Fal	Burn	Exp	Mel	Hrd M	Use	Weight	Section			H						Ins		Description
 };
 
@@ -370,6 +371,7 @@ part_transition ptransitions[PT_NUM] =
 	/* FRAY */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
 	/* REPL */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
 	/* PPIP */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
+	/* DTEC */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
 };
 
 // This is an enthalpy values table, converted into TPT imaginary units
@@ -538,6 +540,7 @@ unsigned int platent[PT_NUM] =
 	/* FRAY */ 0,
 	/* REPL */ 0,
 	/* PPIP */ 0,
+	/* DTEC */ 0,
 };
 #undef IPL
 #undef IPH

src/elements/dtec.c

@@ -0,0 +1,59 @@
+/*
+ * 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_DTEC(UPDATE_FUNC_ARGS) {
+	int r, rx, ry, rt, rd = parts[i].tmp2;
+	if (rd > 25) parts[i].tmp2 = rd = 25;
+	if (parts[i].life)
+	{
+		parts[i].life = 0;
+		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)
+						continue;
+					rt = parts[r>>8].type;
+					if (parts_avg(i,r>>8,PT_INSL) != PT_INSL)
+					{
+						if ((ptypes[rt].properties&PROP_CONDUCTS) && !(rt==PT_WATR||rt==PT_SLTW||rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR) && parts[r>>8].life==0 && in_radius(rd, rx, ry))
+						{
+							parts[r>>8].life = 4;
+							parts[r>>8].ctype = rt;
+							part_change_type(r>>8,x+rx,y+ry,PT_SPRK);
+						}
+					}
+				}
+	}
+	for (rx=-rd; rx<rd+1; rx++)
+		for (ry=-rd; ry<rd+1; ry++)
+			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 (parts[r>>8].type == parts[i].ctype && (parts[i].ctype != PT_LIFE || parts[i].tmp == parts[r>>8].tmp))
+					parts[i].life = 1;
+			}
+	return 0;
+}
+
+int in_radius(int rd, int x, int y)
+{
+	return (pow((double)x,2)*pow((double)rd,2)+pow((double)y,2)*pow((double)rd,2)<=pow((double)rd,2)*pow((double)rd,2));
+}

src/powder.c

@@ -876,13 +876,14 @@ inline int create_part(int p, int x, int y, int tv)//the function for creating a
 	{
 		if (pmap[y][x])
 		{
+			int pmaptype = (pmap[y][x]&0xFF);
 			if ((
-				((pmap[y][x]&0xFF)==PT_STOR&&!(ptypes[t].properties&TYPE_SOLID))||
+				(pmaptype==PT_STOR&&!(ptypes[t].properties&TYPE_SOLID))||
-				(pmap[y][x]&0xFF)==PT_CLNE||
+				pmaptype==PT_CLNE||
-				(pmap[y][x]&0xFF)==PT_BCLN||
+				pmaptype==PT_BCLN||
-				(pmap[y][x]&0xFF)==PT_CONV||
+				pmaptype==PT_CONV||
-				((pmap[y][x]&0xFF)==PT_PCLN&&t!=PT_PSCN&&t!=PT_NSCN)||
+				(pmaptype==PT_PCLN&&t!=PT_PSCN&&t!=PT_NSCN)||
-				((pmap[y][x]&0xFF)==PT_PBCN&&t!=PT_PSCN&&t!=PT_NSCN)
+				(pmaptype==PT_PBCN&&t!=PT_PSCN&&t!=PT_NSCN)
 			)&&(
 				t!=PT_CLNE&&t!=PT_PCLN&&
 				t!=PT_BCLN&&t!=PT_STKM&&
@@ -893,6 +894,11 @@ inline int create_part(int p, int x, int y, int tv)//the function for creating a
 				parts[pmap[y][x]>>8].ctype = t;
 				if (t==PT_LIFE && v<NGOLALT && (pmap[y][x]&0xFF)!=PT_STOR) parts[pmap[y][x]>>8].tmp = v;
 			}
+			else if (pmaptype == PT_DTEC && pmaptype != t)
+			{
+				parts[pmap[y][x]>>8].ctype = t;
+				if (t==PT_LIFE && v<NGOLALT) parts[pmap[y][x]>>8].tmp = v;
+			}
 			return -1;
 		}
 		if (photons[y][x] && (ptypes[t].properties & TYPE_ENERGY))
@@ -1114,6 +1120,9 @@ inline int create_part(int p, int x, int y, int tv)//the function for creating a
 		case PT_BIZR: case PT_BIZRG: case PT_BIZRS:
 			parts[i].ctype = 0x47FFFF;
 			break;
+		case PT_DTEC:
+			parts[i].tmp2 = 2;
+			break;
 		default:
 			if (t==PT_FIGH)
 			{