1 files changed, 23 insertions, 0 deletions
diff --git a/src/elements/ice.c b/src/elements/ice.c
new file mode 100644
index 0000000..5b792ce
--- /dev/null
+++ b/src/elements/ice.c
@@ -0,0 +1,23 @@
+#include <element.h>
+
+int update_ICEI(UPDATE_FUNC_ARGS) { //currently used for snow as well
+	int r, rx, ry;
+	if (parts[i].ctype==PT_FRZW)
+	{
+		parts[i].temp = restrict_flt(parts[i].temp-1.0f, MIN_TEMP, MAX_TEMP);
+	}
+	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>>8)>=NPART || !r)
+					continue;
+				if (((r&0xFF)==PT_SALT || (r&0xFF)==PT_SLTW) && 1>(rand()%1000))
+				{
+					part_change_type(i,x,y,PT_SLTW);
+					part_change_type(r>>8,x+rx,y+ry,PT_SLTW);
+				}
+			}
+	return 0;
+}