use libgeometry from the system. got rid of global `theparty`. wrote a little man page draft.

1 files changed, 2 insertions, 2 deletions

diff --git a/physics.c b/physics.c
index f7fd284..0fafea4 100644
--- a/physics.c
+++ b/physics.c
@@ -2,7 +2,7 @@
 #include <libc.h>
 #include <ip.h>
 #include <draw.h>
-#include "libgeometry/geometry.h"
+#include <geometry.h>
 #include "dat.h"
 #include "fns.h"
 
@@ -17,7 +17,7 @@ accelship(Universe *u, Particle *p, double)
 {
 	double g, d;
 
-	/* XXX: remember to take thrust into account, based on user input. */
+	/* TODO: take thrust into account, based on user input. */
 	d = vec2len(subpt2(u->star.p, p->p));
 	d *= 1e5; /* scale to the 100km/px range */
 	g = G*u->star.mass/(d*d);