Remove non-portable inline functions.

1 files changed, 81 insertions, 0 deletions

diff --git a/libdimension/geometry.c b/libdimension/geometry.c
new file mode 100644
index 0000000..c6909f4
--- /dev/null
+++ b/libdimension/geometry.c
@@ -0,0 +1,81 @@
+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
+ *                                                                       *
+ * This file is part of Dimension.                                       *
+ *                                                                       *
+ * Dimension 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.                                   *
+ *                                                                       *
+ * Dimension 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/>.                                       *
+ *************************************************************************/
+
+#include "dimension.h"
+
+dmnsn_vector
+dmnsn_vector_construct(dmnsn_scalar x, dmnsn_scalar y, dmnsn_scalar z)
+{
+  dmnsn_vector v = { .x = x, .y = y, .z = z };
+  return v;
+}
+
+dmnsn_vector
+dmnsn_vector_add(dmnsn_vector lhs, dmnsn_vector rhs)
+{
+  dmnsn_vector v = { .x = lhs.x + rhs.x,
+                     .y = lhs.y + rhs.y,
+                     .z = lhs.z + rhs.z };
+  return v;
+}
+
+dmnsn_vector
+dmnsn_vector_sub(dmnsn_vector lhs, dmnsn_vector rhs)
+{
+  dmnsn_vector v = { .x = lhs.x - rhs.x,
+                     .y = lhs.y - rhs.y,
+                     .z = lhs.z - rhs.z };
+  return v;
+}
+
+dmnsn_vector
+dmnsn_vector_mul(dmnsn_scalar lhs, dmnsn_vector rhs)
+{
+  dmnsn_vector v = { .x = lhs*rhs.x, .y = lhs*rhs.y, .z = lhs*rhs.z };
+  return v;
+}
+
+dmnsn_vector
+dmnsn_vector_div(dmnsn_vector lhs, dmnsn_scalar rhs)
+{
+  dmnsn_vector v = { .x = lhs.x/rhs, .y = lhs.y/rhs, .z = lhs.z/rhs };
+  return v;
+}
+
+dmnsn_scalar
+dmnsn_vector_dot(dmnsn_vector lhs, dmnsn_vector rhs)
+{
+  return lhs.x*rhs.x + lhs.y*rhs.y + lhs.z*rhs.z;
+}
+
+dmnsn_vector
+dmnsn_vector_cross(dmnsn_vector lhs, dmnsn_vector rhs)
+{
+  dmnsn_vector v = { .x = lhs.y*rhs.z - lhs.z*rhs.y,
+                     .y = lhs.z*rhs.x - lhs.x*rhs.z,
+                     .z = lhs.x*rhs.y - lhs.y*rhs.x };
+  return v;
+}
+
+dmnsn_vector
+dmnsn_line_point(dmnsn_line l, dmnsn_scalar t)
+{
+  return dmnsn_vector_add(l.x0, dmnsn_vector_mul(t, l.n));
+}