Modularize the libdimension codebase.

1 files changed, 0 insertions, 154 deletions

diff --git a/libdimension/cube.c b/libdimension/cube.c
deleted file mode 100644
index c455467..0000000
--- a/libdimension/cube.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/*************************************************************************
- * Copyright (C) 2009-2014 Tavian Barnes <tavianator@tavianator.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/>.                                       *
- *************************************************************************/
-
-/**
- * @file
- * Cubes.
- */
-
-#include "dimension.h"
-#include <math.h>
-
-/// Intersection callback for a cube.
-static bool
-dmnsn_cube_intersection_fn(const dmnsn_object *cube, dmnsn_line line,
-                           dmnsn_intersection *intersection)
-{
-  // Clip the given line against the X, Y, and Z slabs
-
-  dmnsn_vector nmin, nmax;
-  double tmin, tmax;
-
-  double tx1 = (-1.0 - line.x0.x)/line.n.x;
-  double tx2 = (+1.0 - line.x0.x)/line.n.x;
-
-  if (tx1 < tx2) {
-    tmin = tx1;
-    tmax = tx2;
-    nmin = dmnsn_new_vector(-1.0, 0.0, 0.0);
-    nmax = dmnsn_new_vector(+1.0, 0.0, 0.0);
-  } else {
-    tmin = tx2;
-    tmax = tx1;
-    nmin = dmnsn_new_vector(+1.0, 0.0, 0.0);
-    nmax = dmnsn_new_vector(-1.0, 0.0, 0.0);
-  }
-
-  if (tmin > tmax)
-    return false;
-
-  double ty1 = (-1.0 - line.x0.y)/line.n.y;
-  double ty2 = (+1.0 - line.x0.y)/line.n.y;
-
-  if (ty1 < ty2) {
-    if (ty1 > tmin) {
-      tmin = ty1;
-      nmin = dmnsn_new_vector(0.0, -1.0, 0.0);
-    }
-    if (ty2 < tmax) {
-      tmax = ty2;
-      nmax = dmnsn_new_vector(0.0, +1.0, 0.0);
-    }
-  } else {
-    if (ty2 > tmin) {
-      tmin = ty2;
-      nmin = dmnsn_new_vector(0.0, +1.0, 0.0);
-    }
-    if (ty1 < tmax) {
-      tmax = ty1;
-      nmax = dmnsn_new_vector(0.0, -1.0, 0.0);
-    }
-  }
-
-  if (tmin > tmax)
-    return false;
-
-  double tz1 = (-1.0 - line.x0.z)/line.n.z;
-  double tz2 = (+1.0 - line.x0.z)/line.n.z;
-
-  if (tz1 < tz2) {
-    if (tz1 > tmin) {
-      tmin = tz1;
-      nmin = dmnsn_new_vector(0.0, 0.0, -1.0);
-    }
-    if (tz2 < tmax) {
-      tmax = tz2;
-      nmax = dmnsn_new_vector(0.0, 0.0, +1.0);
-    }
-  } else {
-    if (tz2 > tmin) {
-      tmin = tz2;
-      nmin = dmnsn_new_vector(0.0, 0.0, +1.0);
-    }
-    if (tz1 < tmax) {
-      tmax = tz1;
-      nmax = dmnsn_new_vector(0.0, 0.0, -1.0);
-    }
-  }
-
-  if (tmin > tmax)
-    return false;
-
-  if (tmin < 0.0) {
-    tmin = tmax;
-    nmin = nmax;
-  }
-
-  if (tmin >= 0.0) {
-    intersection->t      = tmin;
-    intersection->normal = nmin;
-    return true;
-  } else {
-    return false;
-  }
-}
-
-/// Inside callback for a cube.
-static bool
-dmnsn_cube_inside_fn(const dmnsn_object *cube, dmnsn_vector point)
-{
-  return point.x > -1.0 && point.x < 1.0
-      && point.y > -1.0 && point.y < 1.0
-      && point.z > -1.0 && point.z < 1.0;
-}
-
-/// Boundary callback for a cube.
-static dmnsn_bounding_box
-dmnsn_cube_bounding_fn(const dmnsn_object *object, dmnsn_matrix trans)
-{
-  dmnsn_bounding_box box = dmnsn_symmetric_bounding_box(dmnsn_new_vector(1.0, 1.0, 1.0));
-  return dmnsn_transform_bounding_box(trans, box);
-}
-
-/// Cube vtable.
-static const dmnsn_object_vtable dmnsn_cube_vtable = {
-  .intersection_fn = dmnsn_cube_intersection_fn,
-  .inside_fn = dmnsn_cube_inside_fn,
-  .bounding_fn = dmnsn_cube_bounding_fn,
-};
-
-// Allocate a new cube object
-dmnsn_object *
-dmnsn_new_cube(dmnsn_pool *pool)
-{
-  dmnsn_object *cube = dmnsn_new_object(pool);
-  cube->vtable = &dmnsn_cube_vtable;
-  return cube;
-}