1 files changed, 46 insertions, 0 deletions
diff --git a/libdimension/pattern/leopard.c b/libdimension/pattern/leopard.c
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+++ b/libdimension/pattern/leopard.c
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+/*************************************************************************
+ * Copyright (C) 2011-2014 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
+ * Leopard pattern.
+ */
+
+#include "dimension/pattern.h"
+#include <math.h>
+
+/// Leopard pattern callback.
+static double
+dmnsn_leopard_pattern_fn(const dmnsn_pattern *leopard, dmnsn_vector v)
+{
+  double val = (sin(v.x) + sin(v.y) + sin(v.z))/3.0;
+  return val*val;
+}
+
+/// The singleton instance.
+static dmnsn_pattern dmnsn_leopard_instance = {
+  .pattern_fn = dmnsn_leopard_pattern_fn,
+};
+
+dmnsn_pattern *
+dmnsn_new_leopard_pattern(dmnsn_pool *pool)
+{
+  return &dmnsn_leopard_instance;
+}