Further function pointers.

1 files changed, 40 insertions, 0 deletions

diff --git a/src/elements/pump.c b/src/elements/pump.c
new file mode 100644
index 0000000..1de7a10
--- /dev/null
+++ b/src/elements/pump.c
@@ -0,0 +1,40 @@
+#include <powder.h>
+
+int update_PUMP(UPDATE_FUNC_ARGS) {
+	int r;
+	if (parts[i].life==10)
+	{
+		if (parts[i].temp>=256.0+273.15)
+			parts[i].temp=256.0+273.15;
+		if (parts[i].temp<= -256.0+273.15)
+			parts[i].temp = -256.0+273.15;
+
+		if (pv[y/CELL][x/CELL]<(parts[i].temp-273.15))
+			pv[y/CELL][x/CELL] += 0.1f*((parts[i].temp-273.15)-pv[y/CELL][x/CELL]);
+		if (y+CELL<YRES && pv[y/CELL+1][x/CELL]<(parts[i].temp-273.15))
+			pv[y/CELL+1][x/CELL] += 0.1f*((parts[i].temp-273.15)-pv[y/CELL+1][x/CELL]);
+		if (x+CELL<XRES)
+		{
+			pv[y/CELL][x/CELL+1] += 0.1f*((parts[i].temp-273.15)-pv[y/CELL][x/CELL+1]);
+			if (y+CELL<YRES)
+				pv[y/CELL+1][x/CELL+1] += 0.1f*((parts[i].temp-273.15)-pv[y/CELL+1][x/CELL+1]);
+		}
+		for (nx=-2; nx<3; nx++)
+			for (ny=-2; ny<3; ny++)
+				if (x+nx>=0 && y+ny>0 &&
+				        x+nx<XRES && y+ny<YRES && (nx || ny))
+				{
+					r = pmap[y+ny][x+nx];
+					if ((r>>8)>=NPART || !r)
+						continue;
+					if ((r&0xFF)==PT_PUMP)
+					{
+						if (parts[r>>8].life<10&&parts[r>>8].life>0)
+							parts[i].life = 9;
+						else if (parts[r>>8].life==0)
+							parts[r>>8].life = 10;
+					}
+				}
+	}
+	return 0;
+}