X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=akamaru.c;h=22b247736717e1b044216ad0763e136168a31044;hb=4e16902eb4a956c7ea79cb4d7f7e56419ea29012;hp=1d94281b269fc936dbeaa830ae44ab4e6e5fbcd1;hpb=6923ae2757901728f2bc4ef2162ca5d14ecfbd14;p=akamaru

diff --git a/akamaru.c b/akamaru.c
index 1d94281..22b2477 100644
--- a/akamaru.c
+++ b/akamaru.c
@@ -24,6 +24,50 @@ const double elasticity = 0.7;
 const double friction = 1;
 const double gravity = 20;
 
+void
+object_init (Object *object, double x, double y, double mass)
+{
+  object->position.x = x;
+  object->position.y = y;
+  object->previous_position.x = x;
+  object->previous_position.y = y;
+  object->mass = mass;
+}
+
+void
+spring_init (Spring *spring, Object *a, Object *b, double length)
+{
+  spring->a = a;
+  spring->b = b;
+  spring->length = length;
+}
+
+void
+stick_init (Stick *stick, Object *a, Object *b, double length)
+{
+  stick->a = a;
+  stick->b = b;
+  stick->length = length;
+}
+
+void
+string_init (String *string, Object *a, Object *b, double length)
+{
+  string->a = a;
+  string->b = b;
+  string->length = length;
+}
+
+void
+offset_spring_init (OffsetSpring *spring, Object *a, Object *b,
+		    double dx, double dy)
+{
+  spring->a = a;
+  spring->b = b;
+  spring->dx = dx;
+  spring->dy = dy;
+}
+
 void
 polygon_init (Polygon *p, int num_points, ...)
 {