Added FRZZ FRZW GRAV. add square brush, hit tab to switch between the two. pipe ctype saves.

5 files changed, 133 insertions, 23 deletions

diff --git a/includes/defines.h b/includes/defines.h
index e7b9be1..56c9707 100644
--- a/includes/defines.h
+++ b/includes/defines.h
@@ -58,6 +58,10 @@ extern unsigned char ZSIZE;
 
 #define NGOL 13
 
+#define CIRCLE_BRUSH 0
+#define SQUARE_BRUSH 1
+#define BRUSH_NUM 2
+
 #ifdef PIX16
 typedef unsigned short pixel;
 #else
@@ -116,6 +120,7 @@ int gol2[XRES][YRES][NGOL];
 int SEC;
 int SEC2;
 int REPLACE_MODE;
+int CURRENT_BRUSH;
 extern sign signs[MAXSIGNS];
 extern stamp stamps[STAMP_MAX];
 extern int stamp_count;
diff --git a/includes/powder.h b/includes/powder.h
index 5638118..ae128e6 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -140,7 +140,10 @@
 #define PT_PUMP 97
 #define PT_FWRK 98
 #define PT_PIPE 99
-#define PT_NUM  100
+#define PT_FRZZ 100
+#define PT_FRZW 101
+#define PT_GRAV 102
+#define PT_NUM  103
 
 #define R_TEMP 22
 #define MAX_TEMP 9999
@@ -234,17 +237,17 @@ static const part_type ptypes[PT_NUM] =
     {"",		PIXPACK(0x000000),	0.0f,	0.00f * CFDS,	1.00f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_SPECIAL,		R_TEMP+0.0f	+273.15f,	251,	"Erases particles.", 0},
     {"DUST",	PIXPACK(0xFFE0A0),	0.7f,	0.02f * CFDS,	0.96f,	0.80f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	10,		0,	0,	30,	1,	85,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	70,		"Very light dust. Flammable.", TYPE_PART},
     {"WATR",	PIXPACK(0x2030D0),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	20,	1,	30,		SC_LIQUID,		R_TEMP-2.0f	+273.15f,	29,		"Liquid. Conducts electricity. Freezes. Extinguishes fires.", TYPE_LIQUID|PROP_CONDUCTS|PROP_NEUTPENETRATE},
-    {"OIL",		PIXPACK(0x404010),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	20,		0,	0,	5,	1,	20,		SC_LIQUID,		R_TEMP+0.0f	+273.15f,	42,		"Liquid. Flammable.", TYPE_LIQUID},
+    {"OIL",	PIXPACK(0x404010),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	20,		0,	0,	5,	1,	20,		SC_LIQUID,		R_TEMP+0.0f	+273.15f,	42,		"Liquid. Flammable.", TYPE_LIQUID},
     {"FIRE",	PIXPACK(0xFF1000),	0.9f,	0.04f * CFDS,	0.97f,	0.20f,	0.0f,	-0.1f,	0.00f,	0.001f	* CFDS,	1,	0,		0,	0,	1,	1,	2,		SC_EXPLOSIVE,	R_TEMP+400.0f+273.15f,	88,		"Ignites flammable materials. Heats air.", TYPE_GAS},
     {"STNE",	PIXPACK(0xA0A0A0),	0.4f,	0.04f * CFDS,	0.94f,	0.95f,	-0.1f,	0.3f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	5,	1,	1,	90,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	150,	"Heavy particles. Meltable.", TYPE_PART},
     {"LAVA",	PIXPACK(0xE05010),	0.3f,	0.02f * CFDS,	0.95f,	0.80f,	0.0f,	0.15f,	0.00f,	0.0003f	* CFDS,	2,	0,		0,	0,	2,	1,	45,		SC_LIQUID,		R_TEMP+1500.0f+273.15f,	60,		"Heavy liquid. Ignites flammable materials. Solidifies when cold.", TYPE_LIQUID},
-    {"GUN",		PIXPACK(0xC0C0D0),	0.7f,	0.02f * CFDS,	0.94f,	0.80f,	-0.1f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	600,	1,	0,	10,	1,	85,		SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	97,		"Light dust. Explosive.", TYPE_PART},
+    {"GUN",	PIXPACK(0xC0C0D0),	0.7f,	0.02f * CFDS,	0.94f,	0.80f,	-0.1f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	600,	1,	0,	10,	1,	85,		SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	97,		"Light dust. Explosive.", TYPE_PART},
     {"NITR",	PIXPACK(0x20E010),	0.5f,	0.02f * CFDS,	0.92f,	0.97f,	0.0f,	0.2f,	0.00f,	0.000f	* CFDS,	2,	1000,	2,	0,	3,	1,	23,		SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	50,		"Liquid. Pressure sensitive explosive.", TYPE_LIQUID},
     {"CLNE",	PIXPACK(0xFFD010),	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_SPECIAL,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Duplicates any particles it touches.", TYPE_SOLID},
-    {"GAS",		PIXPACK(0xE0FF20),	1.0f,	0.01f * CFDS,	0.99f,	0.30f,	-0.1f,	0.0f,	0.75f,	0.001f	* CFDS,	0,	600,	0,	0,	1,	1,	1,		SC_GAS,			R_TEMP+2.0f	+273.15f,	42,		"Gas. Diffuses. Flammable. Liquifies under pressure.", TYPE_GAS},
-    {"C-4",		PIXPACK(0xD080E0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	1000,	2,	50,	1,	1,	100,	SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	88,		"Solid. Pressure sensitive explosive.", TYPE_SOLID | PROP_NEUTPENETRATE},
-    {"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},
-    {"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},
+    {"GAS",	PIXPACK(0xE0FF20),	1.0f,	0.01f * CFDS,	0.99f,	0.30f,	-0.1f,	0.0f,	0.75f,	0.001f	* CFDS,	0,	600,	0,	0,	1,	1,	1,		SC_GAS,			R_TEMP+2.0f	+273.15f,	42,		"Gas. Diffuses. Flammable. Liquifies under pressure.", TYPE_GAS},
+    {"C-4",	PIXPACK(0xD080E0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	1000,	2,	50,	1,	1,	100,	SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	88,		"Solid. Pressure sensitive explosive.", TYPE_SOLID | PROP_NEUTPENETRATE},
+    {"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},
+    {"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},
     {"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},
     {"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},
     {"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},
@@ -264,11 +267,11 @@ static const part_type ptypes[PT_NUM] =
     {"BRMT",	PIXPACK(0x705060),	0.4f,	0.04f * CFDS,	0.94f,	0.95f,	-0.1f,	0.3f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	2,	2,	1,	90,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	211,	"Broken metal.", TYPE_PART|PROP_CONDUCTS},
     {"PHOT",	PIXPACK(0xFFFFFF),	0.0f,	0.00f * CFDS,	1.00f,	1.00f,	-0.99f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	-1,		SC_ELEC,		R_TEMP+900.0f+273.15f,	251,	"Photons. Travel in straight lines.", TYPE_ENERGY},
     {"URAN",	PIXPACK(0x707020),	0.4f,	0.01f * CFDS,	0.99f,	0.95f,	0.0f,	0.4f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	0,	1,	90,		SC_NUCLEAR,		R_TEMP+30.0f+273.15f,	251,	"Heavy particles. Generates heat under pressure.", TYPE_PART},
-    {"WAX",		PIXPACK(0xF0F0BB),  0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	10,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	44,		"Wax. Melts at moderately high temperatures.", TYPE_SOLID},
+    {"WAX",	PIXPACK(0xF0F0BB),  	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	10,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	44,		"Wax. Melts at moderately high temperatures.", TYPE_SOLID},
     {"MWAX",	PIXPACK(0xE0E0AA),	0.3f,	0.02f * CFDS,	0.95f,	0.80f,	0.0f,	0.15f,	0.00f,	0.000001f* CFDS,2,	5,		0,	0,	2,	1,	25,		SC_LIQUID,		R_TEMP+28.0f+273.15f,	44,		"Liquid Wax.", TYPE_LIQUID},
     {"PSCN",	PIXPACK(0x805050),	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,	"P-Type Silicon, Will transfer current to any conductor.", TYPE_SOLID},
     {"NSCN",	PIXPACK(0x505080),	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,	"N-Type Silicon, Will only transfer current to P-Type Silicon.", TYPE_SOLID},
-    {"LN2",		PIXPACK(0x80A0DF),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	0,	1,	30,		SC_LIQUID,		70.15f,					70,		"Liquid Nitrogen. Very cold.", TYPE_LIQUID},
+    {"LN2",	PIXPACK(0x80A0DF),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	0,	1,	30,		SC_LIQUID,		70.15f,					70,		"Liquid Nitrogen. Very cold.", TYPE_LIQUID},
     {"INSL",	PIXPACK(0x9EA3B6),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	7,		0,	0,	10,	1,	100,	SC_SPECIAL,		R_TEMP+0.0f	+273.15f,	0,		"Insulator, does not conduct heat or electricity.", TYPE_SOLID},
     {"BHOL",	PIXPACK(0x202020),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	-0.01f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SPECIAL,		R_TEMP+70.0f+273.15f,	255,	"Black hole, sucks in other particles and heats up.", TYPE_SOLID},
     {"WHOL",	PIXPACK(0xEFEFEF),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.010f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SPECIAL,		R_TEMP-16.0f+273.15f,	255,	"White hole, pushes other particles away.", TYPE_SOLID},
@@ -291,8 +294,8 @@ static const part_type ptypes[PT_NUM] =
     {"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},
     {"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},
     {"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},
-    {"LO2",		PIXPACK(0x80A0EF),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	5000,  	0,	0,	0,	1,	30,		SC_LIQUID,		80.0f,					70,		"Liquid Oxygen. Very cold. Reacts with fire", TYPE_LIQUID},
-    {"O2",		PIXPACK(0x80A0FF),	2.0f,   0.00f * CFDS,   0.99f,	0.30f,	-0.1f,	0.0f,	3.0f,	0.000f	* CFDS,	0,	1000,  	0,	0,	0,	1,	1,		SC_GAS,		 	R_TEMP+0.0f	+273.15f,   70,		"Gas. Ignites easily.", TYPE_GAS},
+    {"LO2",	PIXPACK(0x80A0EF),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	5000,  	0,	0,	0,	1,	30,		SC_LIQUID,		80.0f,					70,		"Liquid Oxygen. Very cold. Reacts with fire", TYPE_LIQUID},
+    {"O2",	PIXPACK(0x80A0FF),	2.0f,   0.00f * CFDS,   0.99f,	0.30f,	-0.1f,	0.0f,	3.0f,	0.000f	* CFDS,	0,	1000,  	0,	0,	0,	1,	1,		SC_GAS,		 	R_TEMP+0.0f	+273.15f,   70,		"Gas. Ignites easily.", TYPE_GAS},
     {"INWR",	PIXPACK(0x544141),	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,	"Insulated Wire. Doesn't conduct to metal or semiconductors.", TYPE_SOLID},
     {"YEST",	PIXPACK(0xEEE0C0),	0.7f,	0.02f * CFDS,	0.96f,	0.80f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	15,		0,	0,	30,	1,	80,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	70,		"Yeast, grows when warm (~37C).", TYPE_PART},
     {"DYST",	PIXPACK(0xBBB0A0),	0.7f,	0.02f * CFDS,	0.96f,	0.80f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	20,		0,	0,	30,	0,	80,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	70,		"Dead Yeast.", TYPE_PART},
@@ -331,7 +334,10 @@ static const part_type ptypes[PT_NUM] =
     {"PUMP",	PIXPACK(0x9EA3B6),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.1f	* CFDS,	0,	7,		0,	0,	10,	1,	100,	SC_SPECIAL,		273.15f,	0,		"Changes pressure to its temp (use HEAT/COOL).", TYPE_SOLID},	
     {"FWRK",	PIXPACK(0x666666),	0.4f,	0.01f * CFDS,	0.99f,	0.95f,	0.0f,	0.4f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	0,	1,	97,   SC_EXPLOSIVE,	R_TEMP+0.0f+273.15f,	100,	"First fireworks made, activated by heat/neutrons."},
     {"PIPE",	PIXPACK(0x444444),	0.0f,	0.00f * CFDS,	0.95f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SPECIAL,		273.15f,	0,		"Moves elements around, read the post on how to use.", TYPE_SOLID},
-    //Name		Colour			Advec	Airdrag		Airloss	Loss	Collid	Grav	Diffus	Hotair		Fal	Burn	Exp	Mel	Hrd	M	Weights	Section			H				Ins(real world, by triclops200) Description
+    {"FRZZ",	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,		90.0f,	46,		"FREEZE", TYPE_PART},
+    {"FRZW",	PIXPACK(0x1020C0),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	2,	0,		0,	0,	20,	1,	30,		SC_LIQUID,		90.0f,	29,		"FREEZE WATER", TYPE_LIQUID},
+    {"GRAV",	PIXPACK(0xFFE0A0),	0.7f,	0.00f * CFDS,	1.00f,	1.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	1,	10,		0,	0,	30,	1,	85,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	70,		"Very light dust. Flammable.", TYPE_PART},    
+//Name		Colour			Advec	Airdrag		Airloss	Loss	Collid	Grav	Diffus	Hotair		Fal	Burn	Exp	Mel	Hrd	M	Weights	Section			H				Ins(real world, by triclops200) Description
 };
 
 static part_state pstates[PT_NUM] =
@@ -434,8 +440,11 @@ static part_state pstates[PT_NUM] =
     /* LOVE */ {ST_GAS,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* WTF  */ {ST_LIQUID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* WARP */ {ST_GAS	,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
-    /* PUMP */ {ST_GAS	,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
-    /* FWRK */ {ST_GAS	,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* PUMP */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* FWRK */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* FWRK */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* FRZZ */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* FRZW */ {ST_LIQUID,	PT_ICEI, 53.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
 };
 static int grule[NGOL][9] = 
 {
diff --git a/src/graphics.c b/src/graphics.c
index c58d4f2..ee89625 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -1489,6 +1489,30 @@ void draw_parts(pixel *vid)
 		    else
 			blendpixel(vid,x,y,parts[i].tmp,parts[i].ctype,parts[i].flags,255);
                 }
+		else if(t==PT_GRAV)
+		{
+			cr = 20;
+			cg = 20;
+			cb = 20;
+			if(parts[i].vx>0)
+				cr += (parts[i].vx)*60;
+			if(parts[i].vy>0)
+				cb += (parts[i].vy)*60;
+			if(parts[i].vx<0)
+				cg -= (parts[i].vx)*60;
+			if(parts[i].vy<0)
+			{
+				cr -= (parts[i].vy)*30;
+				cg -= (parts[i].vy)*30;
+			}
+			if(cr>255)
+				cr=255;
+			if(cg>255)
+				cg=255;
+			if(cb>255)
+				cb=255;
+			blendpixel(vid, nx, ny, cr, cg, cb, 255);
+		}
 		else if(t==PT_PIPE)
 		{
 			if(parts[i].ctype==2)
@@ -2821,7 +2845,15 @@ void render_cursor(pixel *vid, int x, int y, int t, int r)
     {
         if(r<=0)
             xor_pixel(x, y, vid);
-        else
+	else if(CURRENT_BRUSH==SQUARE_BRUSH)
+	    for(j=-r; j<=r; j++)
+		{
+			xor_pixel(x+r, y+j, vid);
+			xor_pixel(x-r, y+j, vid);
+			if(abs(j)<r) xor_pixel(x+j, y-r, vid);
+			if(abs(j)<r) xor_pixel(x+j, y+r, vid);
+		}
+        else if(CURRENT_BRUSH==CIRCLE_BRUSH)
             for(j=0; j<=r; j++)
                 for(i=0; i<=r; i++)
                     if(i*i+j*j<=r*r && ((i+1)*(i+1)+j*j>r*r || i*i+(j+1)*(j+1)>r*r))
diff --git a/src/main.c b/src/main.c
index 17ccbab..beedda7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -325,7 +325,7 @@ void *build_save(int *size, int x0, int y0, int w, int h)
     for(j=0; j<w*h; j++)
     {
         i = m[j];
-        if(i && (parts[i-1].type==PT_CLNE || parts[i-1].type==PT_PCLN || parts[i-1].type==PT_SPRK || parts[i-1].type==PT_LAVA))
+        if(i && (parts[i-1].type==PT_CLNE || parts[i-1].type==PT_PCLN || parts[i-1].type==PT_SPRK || parts[i-1].type==PT_LAVA || parts[i-1].type==PT_PIPE))
             d[p++] = parts[i-1].ctype;
     }
 
@@ -644,7 +644,7 @@ int parse_save(void *save, int size, int replace, int x0, int y0)
     {
         i = m[j];
         ty = d[pty+j];
-        if(i && (ty==PT_CLNE || (ty==PT_PCLN && ver>=43) || (ty==PT_SPRK && ver>=21) || (ty==PT_LAVA && ver>=34)))
+        if(i && (ty==PT_CLNE || (ty==PT_PCLN && ver>=43) || (ty==PT_SPRK && ver>=21) || (ty==PT_LAVA && ver>=34) || (ty==PT_PIPE && ver>=43)))
         {
             if(p >= size)
                 goto corrupt;
@@ -1276,6 +1276,10 @@ int main(int argc, char *argv[])
         {
             set_cmode(CM_CRACK);
         }
+	if(sdl_key==SDLK_TAB)
+	{
+		CURRENT_BRUSH =(CURRENT_BRUSH + 1)%BRUSH_NUM ;
+	}
         if(sdl_key==SDLK_LEFTBRACKET) {
             if(sdl_zoom_trig==1)
             {
diff --git a/src/powder.c b/src/powder.c
index 2adf880..8657f6a 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -498,6 +498,8 @@ inline int create_part(int p, int x, int y, int t)
         parts[i].life = 110;
         parts[i].tmp = 50;
     }
+    if(t==PT_FRZW)
+	    parts[i].life = 100;
     if(t==PT_PIPE)
 	parts[i].life = 60;
     if(t==PT_BCOL)
@@ -988,7 +990,7 @@ void update_particles_i(pixel *vid, int start, int inc)
             {
                 if(!(parts[i].life==10&&(parts[i].type==PT_LCRY||parts[i].type==PT_PCLN||parts[i].type==PT_HSWC)))
                     parts[i].life--;
-                if(parts[i].life<=0 && t!=PT_METL && t!=PT_IRON && t!=PT_FIRW && t!=PT_PCLN && t!=PT_HSWC && t!=PT_WATR && t!=PT_RBDM && t!=PT_LRBD && t!=PT_SLTW && t!=PT_BRMT && t!=PT_PSCN && t!=PT_NSCN && t!=PT_NTCT && t!=PT_PTCT && t!=PT_BMTL && t!=PT_SPRK && t!=PT_LAVA && t!=PT_ETRD&&t!=PT_LCRY && t!=PT_INWR && t!=PT_GLOW && t!= PT_FOG && t!=PT_PIPE)
+                if(parts[i].life<=0 && t!=PT_METL && t!=PT_IRON && t!=PT_FIRW && t!=PT_PCLN && t!=PT_HSWC && t!=PT_WATR && t!=PT_RBDM && t!=PT_LRBD && t!=PT_SLTW && t!=PT_BRMT && t!=PT_PSCN && t!=PT_NSCN && t!=PT_NTCT && t!=PT_PTCT && t!=PT_BMTL && t!=PT_SPRK && t!=PT_LAVA && t!=PT_ETRD&&t!=PT_LCRY && t!=PT_INWR && t!=PT_GLOW && t!= PT_FOG && t!=PT_PIPE && t!=PT_FRZW &&(t!=PT_ICEI&&parts[i].ctype!=PT_FRZW))
                 {
                     kill_part(i);
                     continue;
@@ -1456,6 +1458,13 @@ void update_particles_i(pixel *vid, int start, int inc)
             }
             else if(t==PT_ICEI || t==PT_SNOW)
             {
+		    if(parts[i].ctype==PT_FRZW)
+		    {
+			parts[i].temp -= 1.0f;
+			if(parts[i].temp<0)
+				parts[i].temp = 0;
+					
+		    }
                 for(nx=-2; nx<3; nx++)
                     for(ny=-2; ny<3; ny++)
                         if(x+nx>=0 && y+ny>0 &&
@@ -2428,6 +2437,57 @@ void update_particles_i(pixel *vid, int start, int inc)
 			}
 		    }
 	    }
+	    else if(t==PT_FRZZ)
+	    {
+		   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(parts[r>>8].type==PT_WATR&&5>rand()%100)
+				{
+					parts[r>>8].type=PT_FRZW;
+					parts[r>>8].life = 100;
+					t = parts[i].type = PT_NONE;
+				}
+					
+			}
+	    }
+	    else if(t==PT_FRZW)
+	    {
+		    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(parts[r>>8].type==PT_WATR&&5>rand()%70)
+				{
+					parts[r>>8].type=PT_FRZW;
+				}
+			}
+			if(parts[i].life==0&&13>rand()%2500)
+			{
+				t = parts[i].type=PT_ICEI;
+				parts[i].ctype=PT_FRZW;
+				parts[i].temp -= 200.0f;
+				if(parts[i].temp<0)
+					parts[i].temp = 0;
+			}
+			else if((100-(parts[i].life))>rand()%50000)
+			{
+				t = parts[i].type=PT_ICEI;
+				parts[i].ctype=PT_FRZW;
+				parts[i].temp -= 200.0f;
+				if(parts[i].temp<0)
+					parts[i].temp = 0;
+			}
+	    }
             else if(t==PT_PCLN)
             {
                 for(nx=-2; nx<3; nx++)
@@ -4342,7 +4402,7 @@ int create_parts(int x, int y, int r, int c)
 	{
         for(j=-r; j<=r; j++)
             for(i=-r; i<=r; i++)
-                if(i*i+j*j<=r*r)
+                if((CURRENT_BRUSH==CIRCLE_BRUSH && i*i+j*j<=r*r)||CURRENT_BRUSH==SQUARE_BRUSH)
                     delete_part(x+i, y+j);
         return 1;
 	}
@@ -4350,7 +4410,7 @@ int create_parts(int x, int y, int r, int c)
 	{
         for(j=-r; j<=r; j++)
             for(i=-r; i<=r; i++)
-                if(i*i+j*j<=r*r)
+                if((CURRENT_BRUSH==CIRCLE_BRUSH && i*i+j*j<=r*r)||CURRENT_BRUSH==SQUARE_BRUSH)
                     delete_part(x+i, y+j);
 	    if(c==0)
 		return 1;
@@ -4359,7 +4419,7 @@ int create_parts(int x, int y, int r, int c)
     {
         for(j=-r; j<=r; j++)
             for(i=-r; i<=r; i++)
-                if(i*i+j*j<=r*r)
+                if((CURRENT_BRUSH==CIRCLE_BRUSH && i*i+j*j<=r*r)||CURRENT_BRUSH==SQUARE_BRUSH)
                     create_part(-1, x+i, y+j, c);
         return 1;
     }
@@ -4370,7 +4430,7 @@ int create_parts(int x, int y, int r, int c)
 	SLALT = 0;
         for(j=-r; j<=r; j++)
             for(i=-r; i<=r; i++)
-                if(i*i+j*j<=r*r)
+                if((CURRENT_BRUSH==CIRCLE_BRUSH && i*i+j*j<=r*r)||CURRENT_BRUSH==SQUARE_BRUSH)
                     delete_part(x+i, y+j);
 	SLALT = stemp;
         return 1;
@@ -4378,7 +4438,7 @@ int create_parts(int x, int y, int r, int c)
     
     for(j=-r; j<=r; j++)
         for(i=-r; i<=r; i++)
-            if(i*i+j*j<=r*r)
+            if((CURRENT_BRUSH==CIRCLE_BRUSH && i*i+j*j<=r*r)||CURRENT_BRUSH==SQUARE_BRUSH)
                 if(create_part(-1, x+i, y+j, c)==-1)
                     f = 1;
     return !f;