Fixed up building enemies and items using componentsin the JSON.

matrix.hpp

@@ -10,8 +10,15 @@ namespace matrix {
   using std::vector, std::queue, std::array;
   using std::min, std::max, std::floor;
 
-  typedef vector<int> Row;
-  typedef vector<Row> Matrix;
+  template<typename T>
+  using BaseRow = vector<T>;
+
+  template<typename T>
+  using Base = vector<BaseRow<T>>;
+
+  using Row = vector<int>;
+  using Matrix = vector<Row>;
+
 
   /*
    * Just a quick thing to reset a matrix to a value.
@@ -40,6 +47,17 @@ namespace matrix {
     return mat.size();
   }
 
+  template<typename T>
+  inline Base<T> make_base(size_t width, size_t height) {
+    Base<T> result(height, BaseRow<T>(width));
+    return result;
+  }
+
+  inline Matrix make(size_t width, size_t height) {
+    Matrix result(height, Row(width));
+    return result;
+  }
+
   inline size_t next_x(size_t x, size_t width) {
     return (x + 1) * ((x + 1) < width);
   }