1 files changed, 60 insertions, 0 deletions
diff --git a/hw4/src/compoundShader.cpp b/hw4/src/compoundShader.cpp
new file mode 100644
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+++ b/hw4/src/compoundShader.cpp
@@ -0,0 +1,60 @@
+/******************************************************************/
+/* This file is part of the homework assignments for CSCI-427/527 */
+/* at The College of William & Mary and authored by Pieter Peers. */
+/* No part of this file, whether altered or in original form, can */
+/* be distributed or used outside the context of CSCI-427/527     */
+/* without consent of either the College of William & Mary or     */
+/* Pieter Peers.                                                  */
+/******************************************************************/
+
+#include <algorithm>
+#include "compoundShader.h"
+
+//////////////////
+// Constructors //
+//////////////////
+compoundShader::compoundShader(const std::vector<std::shared_ptr<const shader_base>>& shader_list)
+  : shader_base()
+{
+  _compound = shader_list;
+}
+
+
+/////////////
+// Methods //
+/////////////
+color compoundShader::shade(const intersectionPoint& ip, const vec3d& light_dir) const
+{
+  color result(0.0f, 0.0f, 0.0f);
+  for_each(_compound.begin(), _compound.end(), [&](const std::shared_ptr<const shader_base>& shader)
+  {
+    result += shader->shade(ip, light_dir);
+  });
+
+  // Done.
+  return result;
+}
+
+
+shaderProperties compoundShader::properties(const intersectionPoint& ip) const
+{
+  // if any component has a property set, then set it for the compound
+  shaderProperties result(false, false);
+  for(unsigned int i=0; i < _compound.size(); i++)
+    result |= _compound[i]->properties(ip);
+
+  // Done.
+  return result;
+}
+
+
+void compoundShader::_print(std::ostream& s) const
+{
+  s << "Compound Shader (" << _compound.size() << " components): {";
+  for(unsigned int i=0; i < _compound.size(); i++)
+  {
+    s << *_compound[i];
+    if(i != _compound.size()-1) s << ", ";
+  }
+  s << "}";
+}