Initial soap commit

1 files changed, 108 insertions, 0 deletions

diff --git a/src/elements/soap.c b/src/elements/soap.c
new file mode 100644
index 0000000..fa521a9
--- /dev/null
+++ b/src/elements/soap.c
@@ -0,0 +1,108 @@
+#include <element.h>
+
+int update_SOAP(UPDATE_FUNC_ARGS) {
+	int r, rx, ry, wc;
+
+	wc = -1;
+
+	//0x01 - bubble on/off
+	//0x02 - first mate yes/no
+	//0x04 - second mate yes/no
+	
+	if (pv[y/CELL][x/CELL]>0.5f)
+		parts[i].ctype |= 0x01;
+
+	if (parts[i].ctype&0x01 == 0x01)
+	{
+		parts[i].vy -= 0.1f;
+
+		parts[i].vy *= 0.5f;
+		parts[i].vx *= 0.5f;
+
+		if(parts[i].ctype&0x02 != 0x02)
+		{
+			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 ((parts[r>>8].type == PT_SOAP) && (parts[r>>8].ctype&0x01==0x01) 
+								&& (parts[r>>8].ctype&0x04!=0x04))
+						{
+							if (parts[r>>8].ctype&0x02 == 0x02)
+							{
+								parts[i].tmp = r>>8;
+								parts[r>>8].tmp2 = i;
+
+								parts[i].ctype |= 0x02;
+								parts[r>>8].ctype |= 0x04;
+							}
+							else
+							{
+								if (parts[i].ctype&0x02!=0x02)
+								{
+									parts[i].tmp = r>>8;
+									parts[r>>8].tmp2 = i;
+
+									parts[i].ctype |= 0x02;
+									parts[r>>8].ctype |= 0x04;
+								}
+							}
+						}
+
+					}
+		}
+		else
+		{
+			float d, dx, dy;
+
+			dx = parts[i].x - parts[parts[i].tmp].x;
+			dy = parts[i].y - parts[parts[i].tmp].y;
+
+			d = 9/(pow(dx, 2)+pow(dy, 2)+9)-0.5;
+
+			parts[parts[i].tmp].x -= dx*d;
+			parts[parts[i].tmp].y -= dy*d;
+
+			parts[i].x += dx*d;
+			parts[i].y += dy*d;
+
+			if ((parts[parts[i].tmp].ctype&0x02 == 0x02) && (parts[parts[i].tmp].ctype&0x01 == 0x01))
+			{
+				float d, dx, dy;
+				int ii;
+
+				ii = parts[parts[i].tmp].tmp;
+
+				dx = parts[ii].x - parts[parts[i].tmp].x;
+				dy = parts[ii].y - parts[parts[i].tmp].y;
+
+				d = 36/(pow(dx, 2)+pow(dy, 2)+36)-0.5;
+
+				parts[parts[i].tmp].x -= dx*d*0.5f;
+				parts[parts[i].tmp].y -= dy*d*0.5f;
+
+				parts[ii].x += dx*d*0.5f;
+				parts[ii].y += dy*d*0.5f;
+			}
+		}
+
+	}
+	else
+	{
+		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;
+
+				}
+	}
+
+	return 0;
+}