1 files changed, 31 insertions, 0 deletions
diff --git a/src/elements/co2.cpp b/src/elements/co2.cpp
new file mode 100644
index 0000000..5a3bbf5
--- /dev/null
+++ b/src/elements/co2.cpp
@@ -0,0 +1,31 @@
+#include "element.h"
+
+int update_CO2(UPDATE_FUNC_ARGS) {
+	int r, rx, ry;
+	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 (20>(rand()%40000)&&parts[i].ctype==5)
+				{
+					parts[i].ctype = 0;
+					sim->create_part(-3, x, y, PT_WATR);
+				}
+				if ((r>>8)>=NPART || !r)
+					continue;
+				if ((r&0xFF)==PT_FIRE){
+					sim->kill_part(r>>8);
+						if(1>(rand()%150)){
+							sim->kill_part(i);
+							return 1;
+						}
+				}
+				if (((r&0xFF)==PT_WATR || (r&0xFF)==PT_DSTW) && 1>(rand()%250))
+				{
+					sim->part_change_type(i,x,y,PT_CBNW);
+					sim->kill_part(r>>8);
+				}
+			}
+	return 0;
+}