Another experimental element, floats on water, supports other structures

src/simulation/Simulation.cpp

@@ -2044,6 +2044,10 @@ void Simulation::init_can_move()
 			can_move[movingType][PT_VIBR] = 1;
 			can_move[movingType][PT_BVBR] = 1;
 		}
+
+		//E181 cannot be displaced by other powders
+		if (elements[movingType].Properties & TYPE_PART)
+			can_move[movingType][PT_E181] = 0;
 	}
 	//a list of lots of things PHOT can move through
 	// TODO: replace with property

src/simulation/elements/181.cpp

@@ -0,0 +1,52 @@
+#include "simulation/Elements.h"
+//#TPT-Directive ElementClass Element_E181 PT_E181 181
+Element_E181::Element_E181()
+{
+	Identifier = "DEFAULT_PT_E181";
+	Name = "E181";
+	Colour = PIXPACK(0xF0F0A0);
+	MenuVisible = 1;
+	MenuSection = SC_POWDERS;
+#ifdef DEBUG
+	Enabled = 1;
+#else
+	Enabled = 0;
+#endif
+
+	Advection = 0.7f;
+	AirDrag = 0.02f * CFDS;
+	AirLoss = 0.96f;
+	Loss = 0.80f;
+	Collision = 0.0f;
+	Gravity = 0.1f;
+	Diffusion = 0.00f;
+	HotAir = 0.000f	* CFDS;
+	Falldown = 1;
+
+	Flammable = 10;
+	Explosive = 0;
+	Meltable = 0;
+	Hardness = 30;
+
+	Weight = 18;
+
+	Temperature = R_TEMP+0.0f	+273.15f;
+	HeatConduct = 70;
+	Description = "Experimental element, floats on water";
+
+	Properties = TYPE_PART|PROP_LIFE_DEC|PROP_LIFE_KILL_DEC;
+
+	LowPressure = IPL;
+	LowPressureTransition = NT;
+	HighPressure = IPH;
+	HighPressureTransition = NT;
+	LowTemperature = ITL;
+	LowTemperatureTransition = NT;
+	HighTemperature = ITH;
+	HighTemperatureTransition = NT;
+
+	Update = NULL;
+	Graphics = NULL;
+}
+
+Element_E181::~Element_E181() {}