More function pointers.

1 files changed, 121 insertions, 0 deletions

diff --git a/src/elements/pipe.c b/src/elements/pipe.c
new file mode 100644
index 0000000..8c66057
--- /dev/null
+++ b/src/elements/pipe.c
@@ -0,0 +1,121 @@
+#include <powder.h>
+
+int update_PIPE(UPDATE_FUNC_ARGS) {
+	int r, trade, q, ctype;
+	if (!parts[i].ctype && parts[i].life<=10)
+	{
+		if (parts[i].temp<272.15)
+		{
+			if (parts[i].temp>173.25&&parts[i].temp<273.15)
+			{
+				parts[i].ctype = 2;
+				parts[i].life = 0;
+			}
+			if (parts[i].temp>73.25&&parts[i].temp<=173.15)
+			{
+				parts[i].ctype = 3;
+				parts[i].life = 0;
+			}
+			if (parts[i].temp>=0&&parts[i].temp<=73.15)
+			{
+				parts[i].ctype = 4;
+				parts[i].life = 0;
+			}
+		}
+		else
+		{
+			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 )
+							continue;
+						if (!r)
+							create_part(-1,x+nx,y+ny,PT_BRCK);
+					}
+			if (parts[i].life==1)
+				parts[i].ctype = 1;
+		}
+	}
+	if (parts[i].ctype==1)
+	{
+		for (nx=-1; nx<2; nx++)
+			for (ny=-1; ny<2; 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)
+						continue;
+					if (!r&&!parts[i].life)
+						parts[i].life=50;
+				}
+		if (parts[i].life==2)
+		{
+			parts[i].ctype = 2;
+			parts[i].life = 6;
+		}
+	}
+	if (parts[i].ctype>1)
+		for ( q = 0; q<3; q++)
+			for ( ctype = 2; ctype<5; ctype++)
+			{
+				if (parts[i].ctype==ctype)
+				{
+					if (parts[i].life==3)
+					{
+						for (nx=-1; nx<2; nx++)
+							for (ny=-1; ny<2; 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 (parts[r>>8].type==PT_PIPE&&parts[r>>8].ctype==1)
+									{
+										parts[r>>8].ctype = (((ctype)%3)+2);//reverse
+										parts[r>>8].life = 6;
+									}
+								}
+					}
+					else
+					{
+						nx = rand()%3-1;
+						ny = rand()%3-1;
+						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)
+								continue;
+							else if (!r&&parts[i].tmp!=0)
+							{
+								if (create_part(-1,x+nx,y+ny,parts[i].tmp))
+								{
+									parts[pmap[y+ny][x+nx]>>8].temp = parts[i].temp;//pipe saves temp and life now
+									parts[pmap[y+ny][x+nx]>>8].life = parts[i].flags;
+								}
+								parts[i].tmp = 0;
+								continue;
+							}
+							else if (!r)
+								continue;
+							else if (parts[i].tmp == 0 && (ptypes[parts[r>>8].type].falldown!= 0 || pstates[parts[r>>8].type].state == ST_GAS))
+							{
+								parts[i].tmp = parts[r>>8].type;
+								parts[i].temp = parts[r>>8].temp;
+								parts[i].flags = parts[r>>8].life;
+								parts[r>>8].type = PT_NONE;
+							}
+							else if (parts[r>>8].type==PT_PIPE && parts[r>>8].ctype!=(((ctype)%3)+2) && parts[r>>8].tmp==0&&parts[i].tmp>0)
+							{
+								parts[r>>8].tmp = parts[i].tmp;
+								parts[r>>8].temp = parts[i].temp;
+								parts[r>>8].flags = parts[i].flags;
+								parts[i].tmp = 0;
+							}
+						}
+					}
+				}
+			}
+	return 0;
+}