print glm matrix types

src/extension.hpp

@@ -191,8 +191,8 @@ int SDL_RenderFillRect(SDL_Renderer*, const Box&);
 int lineColor(SDL_Renderer*, const Segment&, const Color&, std::uint8_t = 1);
 
 /* Stream a text representation of a glm::vec of any type or dimension */
-template<int dimensions, typename Type>
-std::ostream& operator<<(std::ostream& out, const glm::vec<dimensions, Type, glm::defaultp>& vec)
+template<glm::length_t dimensions, typename Type, glm::qualifier qualifier>
+std::ostream& operator<<(std::ostream& out, const glm::vec<dimensions, Type, qualifier>& vec)
 {
     out << "{" << vec.x << ", " << vec.y;
     if constexpr (dimensions > 2)
@@ -207,6 +207,33 @@ std::ostream& operator<<(std::ostream& out, const glm::vec<dimensions, Type, glm
     return out;
 }
 
+/* Add a GLM matrix to the stream, each row on its own line */
+template<glm::length_t columns, glm::length_t rows, typename Type, glm::qualifier qualifier>
+std::ostream& operator<<(std::ostream& out, const glm::mat<columns, rows, Type, qualifier>& mat)
+{
+    /* get the transpose so we can iterate over the original matrix by row instead of column */
+    glm::mat<rows, columns, Type, qualifier> transpose = glm::transpose(mat);
+    out << std::endl << "{";
+    /* print each column of the transpose, therefore printing each row of the original */
+    for (std::size_t ii = 0; ii < transpose.length(); ii++)
+    {
+        if (ii > 0)
+        {
+            out << " ";
+        }
+        out << transpose[ii];
+        if (ii == static_cast<std::size_t>(transpose.length() - 1))
+        {
+            out << "}";
+        }
+        else
+        {
+            out << std::endl;
+        }
+    }
+    return out;
+}
+
 std::ostream& operator<<(std::ostream&, const SDL_Color&);
 
 /* Add the contents of a vector to the output stream */