First Commit

For Azeroth!

src/server/game/Movement/Spline/SplineImpl.h

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+namespace Movement
+{
+template<typename length_type> void Spline<length_type>::evaluate_percent( float t, Vector3 & c ) const
+{
+    index_type Index;
+    float u;
+    computeIndex(t, Index, u);
+    evaluate_percent(Index, u, c);
+}
+
+template<typename length_type> void Spline<length_type>::evaluate_derivative(float t, Vector3& hermite) const
+{
+    index_type Index;
+    float u;
+    computeIndex(t, Index, u);
+    evaluate_derivative(Index, u, hermite);
+}
+
+template<typename length_type> SplineBase::index_type Spline<length_type>::computeIndexInBounds(length_type length_) const
+{
+// Temporary disabled: causes infinite loop with t = 1.f
+/*
+    index_type hi = index_hi;
+    index_type lo = index_lo;
+
+    index_type i = lo + (float)(hi - lo) * t;
+
+    while ((lengths[i] > length) || (lengths[i + 1] <= length))
+    {
+        if (lengths[i] > length)
+            hi = i - 1; // too big
+        else if (lengths[i + 1] <= length)
+            lo = i + 1; // too small
+
+        i = (hi + lo) / 2;
+    }*/
+
+    index_type i = index_lo;
+    index_type N = index_hi;
+    while (i+1 < N && lengths[i+1] < length_)
+        ++i;
+
+    return i;
+}
+
+template<typename length_type> void Spline<length_type>::computeIndex(float t, index_type& index, float& u) const
+{
+    ASSERT(t >= 0.f && t <= 1.f);
+    length_type length_ = t * length();
+    index = computeIndexInBounds(length_);
+    ASSERT(index < index_hi);
+    u = (length_ - length(index)) / (float)length(index, index+1);
+}
+
+template<typename length_type> SplineBase::index_type Spline<length_type>::computeIndexInBounds( float t ) const
+{
+    ASSERT(t >= 0.f && t <= 1.f);
+    return computeIndexInBounds(t * length());
+}
+
+template<typename length_type> void Spline<length_type>::initLengths()
+{
+    index_type i = index_lo;
+    length_type length = 0;
+    lengths.resize(index_hi+1);
+    while (i < index_hi)
+    {
+        length += SegLength(i);
+        lengths[++i] = length;
+    }
+}
+
+template<typename length_type> void Spline<length_type>::clear()
+{
+    SplineBase::clear();
+    lengths.clear();
+}
+
+}