1 files changed, 94 insertions, 0 deletions
diff --git a/src/elements/qrtz.cpp b/src/elements/qrtz.cpp
new file mode 100644
index 0000000..7768765
--- /dev/null
+++ b/src/elements/qrtz.cpp
@@ -0,0 +1,94 @@
+#include "element.h"
+
+int update_QRTZ(UPDATE_FUNC_ARGS) {
+	int r, tmp, trade, rx, ry, np, t;
+	t = parts[i].type;
+	if (t == PT_QRTZ)
+	{
+		parts[i].pavg[0] = parts[i].pavg[1];
+		parts[i].pavg[1] = sim->pv[y/CELL][x/CELL];
+		if (parts[i].pavg[1]-parts[i].pavg[0] > 0.05*(parts[i].temp/3) || parts[i].pavg[1]-parts[i].pavg[0] < -0.05*(parts[i].temp/3))
+		{
+			sim->part_change_type(i,x,y,PT_PQRT);
+		}
+	}
+	// absorb SLTW
+	if (parts[i].ctype!=-1)
+		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;
+					else if ((r&0xFF)==PT_SLTW && (1>rand()%2500))
+					{
+						sim->kill_part(r>>8);
+						parts[i].ctype ++;
+					}
+				}
+	// grow if absorbed SLTW
+	if (parts[i].ctype>0)
+	{
+		for ( trade = 0; trade<5; trade ++)
+		{
+			rx = rand()%3-1;
+			ry = rand()%3-1;
+			if (x+rx>=0 && y+ry>0 && x+rx<XRES && y+ry<YRES && (rx || ry))
+			{
+				r = pmap[y+ry][x+rx];
+				if (!r && parts[i].ctype!=0)
+				{
+					np = sim->create_part(-1,x+rx,y+ry,PT_QRTZ);
+					if (np>-1)
+					{
+						parts[np].tmp = parts[i].tmp;
+						parts[i].ctype--;
+						if (5>rand()%10)
+						{
+							parts[np].ctype=-1;//dead qrtz
+						}
+						else if (!parts[i].ctype && 1>rand()%15)
+						{
+							parts[i].ctype=-1;
+						}
+
+						break;
+					}
+				}
+			}
+		}
+	}
+	// diffuse absorbed SLTW
+	if (parts[i].ctype>0)
+	{
+		for ( trade = 0; trade<9; trade ++)
+		{
+			rx = rand()%5-2;
+			ry = rand()%5-2;
+			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 ((r&0xFF)==t && (parts[i].ctype>parts[r>>8].ctype) && parts[r>>8].ctype>=0 )//diffusion
+				{
+					tmp = parts[i].ctype - parts[r>>8].ctype;
+					if (tmp ==1)
+					{
+						parts[r>>8].ctype ++;
+						parts[i].ctype --;
+						break;
+					}
+					if (tmp>0)
+					{
+						parts[r>>8].ctype += tmp/2;
+						parts[i].ctype -= tmp/2;
+						break;
+					}
+				}
+			}
+		}
+	}
+	return 0;
+}