X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=meshfrac;a=blobdiff_plain;f=src%2Fgeom.c;h=67c3c31d23072f3017009c2ca9a190e387faafe8;hp=4e30628fbe6a4c8328a24d04fa987f6e46ff01e7;hb=47382e57c60544c263e6822ea8d76025c758c7b2;hpb=82bf18c392447827912146ba65145500c9c25385

diff --git a/src/geom.c b/src/geom.c
index 4e30628..67c3c31 100644
--- a/src/geom.c
+++ b/src/geom.c
@@ -32,7 +32,7 @@ void poly_normal(const struct poly *poly, cgm_vec3 *n)
 	va = poly->verts[1].pos;
 	cgm_vsub(&va, &poly->verts[0].pos);
 	vb = poly->verts[2].pos;
-	cgm_vsub(&vb, &poly->verts[2].pos);
+	cgm_vsub(&vb, &poly->verts[0].pos);
 
 	cgm_vcross(n, &va, &vb);
 	cgm_vnormalize(n);
@@ -138,6 +138,11 @@ int init_poly(struct poly *p)
 	return p->verts ? 0 : -1;
 }
 
+void destroy_poly(struct poly *p)
+{
+	dynarr_free(p->verts);
+}
+
 /* returns:
  *  1 -> both inside
  *  0 -> straddling and clipped
@@ -203,7 +208,7 @@ int clip_poly(struct poly *pout, const struct poly *pin, const struct plane *pla
 	int i, nextidx, res = 0, vnum;
 	int edges_clipped = 0;
 
-	dynarr_clear(pout->verts);
+	DYNARR_CLEAR(pout->verts);
 
 	vnum = dynarr_size(pin->verts);
 	for(i=0; i<vnum; i++) {