Begin object type, with sphere example.

2 files changed, 40 insertions, 0 deletions

diff --git a/libdimension/dimension/object.h b/libdimension/dimension/object.h
index 737a49d..c79d62e 100644
--- a/libdimension/dimension/object.h
+++ b/libdimension/dimension/object.h
@@ -26,9 +26,18 @@
  */
 
 typedef dmnsn_array *dmnsn_object_intersections_fn(dmnsn_line line);
+typedef int dmnsn_object_inside_fn(dmnsn_vector point);
 
 typedef struct {
+  /* Generic pointer for object info */
+  void *ptr;
+
+  /* Callback functions */
   dmnsn_object_intersections_fn *intersections_fn;
+  dmnsn_object_inside_fn        *inside_fn;
 } dmnsn_object;
 
+dmnsn_object *dmnsn_new_object();
+void dmnsn_delete_object(dmnsn_object *object);
+
 #endif /* DIMENSION_OBJECT_H */
diff --git a/libdimension/dimension/sphere.h b/libdimension/dimension/sphere.h
new file mode 100644
index 0000000..2547965
--- /dev/null
+++ b/libdimension/dimension/sphere.h
@@ -0,0 +1,31 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Library is distributed in the hope that it will be      *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+#ifndef DIMENSION_SPHERE_H
+#define DIMENSION_SPHERE_H
+
+/*
+ * A sphere object, of radius 1, centered at the origin.
+ */
+
+dmnsn_object *dmnsn_new_sphere();
+void dmnsn_delete_sphere(dmnsn_object *sphere);
+
+#endif /* DIMENSION_SPHERE_H */