Corrected changes to appear properly. I think. Added Explosions with pressure to carbonated water.

src/elements/cbnw.c

@@ -3,6 +3,15 @@
 int update_CBNW(UPDATE_FUNC_ARGS) {
 	int r, rx, ry, oldt;
 	oldt = parts[i].tmp;
+    if (pv[y/CELL][x/CELL]<=1)
+    {
+        if(20>(rand()%20000))
+    	{
+            part_change_type(i,x,y,PT_CO2);
+           	parts[i].ctype = 5;
+        	pv[y/CELL][x/CELL] += 0.5f;
+        }
+	}
 	if (parts[i].tmp>0)
 		parts[i].tmp--;
 	if(!(rand()%200))

src/elements/co2.c

@@ -1,7 +1,7 @@
 #include <element.h>
 
 int update_CO2(UPDATE_FUNC_ARGS) {
-	int r, rx, ry;
+	int r, rx, ry, np;
 	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))
@@ -16,6 +16,11 @@ int update_CO2(UPDATE_FUNC_ARGS) {
 							return 1;
 						}
 				}
+                if ((r)&&parts[i].ctype==5)
+				{
+					parts[i].ctype = 0;
+                    create_part(-1, x+rand()%3-1, y+rand()%3-1, PT_WATR);
+				}
 				if (((r&0xFF)==PT_WATR || (r&0xFF)==PT_DSTW) && 1>(rand()%250))
 				{
 					part_change_type(i,x,y,PT_CBNW);