1 files changed, 155 insertions, 0 deletions
diff --git a/src/simulation/elements/GEL.cpp b/src/simulation/elements/GEL.cpp
new file mode 100644
index 0000000..5a139db
--- /dev/null
+++ b/src/simulation/elements/GEL.cpp
@@ -0,0 +1,155 @@
+#include "simulation/Elements.h"
+//#TPT-Directive ElementClass Element_GEL PT_GEL 142
+Element_GEL::Element_GEL()
+{
+    Identifier = "DEFAULT_PT_GEL";
+    Name = "GEL";
+    Colour = PIXPACK(0xFF9900);
+    MenuVisible = 1;
+    MenuSection = SC_LIQUID;
+    Enabled = 1;
+    
+    Advection = 0.6f;
+    AirDrag = 0.01f * CFDS;
+    AirLoss = 0.98f;
+    Loss = 0.95f;
+    Collision = 0.0f;
+    Gravity = 0.1f;
+    Diffusion = 0.00f;
+    HotAir = 0.000f  * CFDS;
+    Falldown = 2;
+    
+    Flammable = 0;
+    Explosive = 0;
+    Meltable = 0;
+    Hardness = 20;
+    
+    Weight = 35;
+    
+    Temperature = R_TEMP-2.0f  +273.15f;
+    HeatConduct = 29;
+    Description = "Gel. A liquid with variable viscosity and heat conductivity";
+    
+    State = ST_LIQUID;
+    Properties = TYPE_LIQUID|PROP_LIFE_DEC|PROP_NEUTPENETRATE;
+    
+    LowPressure = IPL;
+    LowPressureTransition = NT;
+    HighPressure = IPH;
+    HighPressureTransition = NT;
+    LowTemperature = ITL;
+    LowTemperatureTransition = NT;
+    HighTemperature = ITH;
+    HighTemperatureTransition = NT;
+    
+    Update = &Element_GEL::update;
+    Graphics = &Element_GEL::graphics;
+}
+
+//#TPT-Directive ElementHeader Element_GEL static int update(UPDATE_FUNC_ARGS)
+int Element_GEL::update(UPDATE_FUNC_ARGS)
+ {
+	int r, rx, ry;
+	int absorbChanceDenom;
+	if (parts[i].tmp>100) parts[i].tmp = 100;
+	if (parts[i].tmp<0) parts[i].tmp = 0;
+	absorbChanceDenom = parts[i].tmp*10 + 500;
+	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;
+
+				//Desaturation
+				if (((r&0xFF)==PT_WATR || (r&0xFF)==PT_DSTW || (r&0xFF)==PT_FRZW) && parts[i].tmp<100 && 500>rand()%absorbChanceDenom)
+				{
+					parts[i].tmp++;
+					sim->kill_part(r>>8);
+				}
+				if (((r&0xFF)==PT_PSTE) && parts[i].tmp<100 && 20>rand()%absorbChanceDenom)
+				{
+					parts[i].tmp++;
+					sim->create_part(r>>8, x+rx, y+ry, PT_CLST);
+				}
+				if (((r&0xFF)==PT_SLTW) && parts[i].tmp<100 && 50>rand()%absorbChanceDenom)
+				{
+					parts[i].tmp++;
+					if (rand()%4)
+						sim->kill_part(r>>8);
+					else
+						sim->part_change_type(r>>8, x+rx, y+ry, PT_SALT);
+				}
+				if (((r&0xFF)==PT_CBNW) && parts[i].tmp<100 && 100>rand()%absorbChanceDenom)
+				{
+					parts[i].tmp++;
+					sim->part_change_type(r>>8, x+rx, y+ry, PT_CO2);
+				}
+
+				if ((r&0xFF)==PT_SPNG && parts[i].tmp<100 && ((parts[r>>8].life+1)>parts[i].tmp))
+				{
+					parts[r>>8].life--;
+					parts[i].tmp++;
+				}
+
+				char gel = 0;
+				if ((r&0xFF)==PT_GEL)
+					gel = 1;
+
+				//Concentration diffusion
+				if (gel && (parts[r>>8].tmp+1)<parts[i].tmp)
+				{
+					parts[r>>8].tmp++;
+					parts[i].tmp--;
+				}
+
+				if ((r&0xFF)==PT_SPNG && (parts[r>>8].life+1)<parts[i].tmp)
+				{
+					parts[r>>8].life++;
+					parts[i].tmp--;
+				}
+
+				float dx, dy;
+				dx = parts[i].x - parts[r>>8].x;
+				dy = parts[i].y - parts[r>>8].y;
+
+				//Stickness
+				if ((dx*dx + dy*dy)>1.5 && (gel || !sim->elements[r&0xFF].Falldown || (fabs((float)rx)<2 && fabs((float)ry)<2)))
+				{
+					float per, nd;
+					nd = dx*dx + dy*dy - 0.5;
+
+					per = 5*(1 - parts[i].tmp/100)*(nd/(dx*dx + dy*dy + nd) - 0.5);
+					if (sim->elements[r&0xFF].State==ST_LIQUID)
+						per *= 0.1;
+
+					dx *= per; dy *= per;
+					parts[i].vx += dx;
+					parts[i].vy += dy;
+					if ((sim->elements[r&0xFF].Properties&TYPE_PART) || (r&0xFF)==PT_GOO)
+					{
+						parts[r>>8].vx -= dx;
+						parts[r>>8].vy -= dy;
+					}
+				}
+			}
+	return 0;
+}
+
+
+
+//#TPT-Directive ElementHeader Element_GEL static int graphics(GRAPHICS_FUNC_ARGS)
+int Element_GEL::graphics(GRAPHICS_FUNC_ARGS)
+
+{
+	int q = cpart->tmp;
+	*colr = q*(32-255)/120+255;
+	*colg = q*(48-186)/120+186;
+	*colb = q*208/120;
+	return 0;
+}
+
+
+
+Element_GEL::~Element_GEL() {}